CN111648840A - Oil pan level regulators, engines and vehicles - Google Patents

Abstract

The invention provides an oil pan liquid level adjusting device, an engine and a vehicle. Wherein, the oil pan liquid level adjustment device includes: an air charging cavity, which is arranged in the oil pan of the engine; an air intake and exhaust assembly, which is communicated with the air charging cavity; wherein, the air charging cavity is inflated or discharged through the air intake and exhaust assembly. The air is contracted to adjust the oil level in the engine oil sump through the volume change of the charging cavity. The technical scheme of the present invention can adjust the oil level by changing the volume of the inflatable cavity when the oil level in the engine oil pan is low, which can effectively prevent the oil level drop from affecting the engine lubricating system, and is conducive to prolonging the The service life of engine lubricating parts prevents engine damage.

Description

Oil pan level regulators, engines and vehicles

technical field

The present application relates to the technical field of engine auxiliary equipment, and in particular, to an oil pan adjusting device, an engine and a vehicle.

Background technique

The engine oil pan is located at the bottom of the crankcase of the engine, and is used to store and collect the returned oil to prevent impurities from entering the engine's lubrication system, and to dissipate heat and prevent oil oxidation. In order to ensure that the lubrication system of the engine can work normally, the oil level in the engine oil pan needs to be kept at a certain height. During the use of the engine, the oil level in the oil pan gradually decreases. If the amount of oil is insufficient or the tilt angle of the engine is too large, it is easy to cause insufficient oil supply of the oil pump, resulting in abnormal operation of the lubricating system and affecting the lubrication of the engine bushing and other lubricating parts. service life, and even cause damage to the engine.

SUMMARY OF THE INVENTION

The present application aims to improve at least one of the technical problems existing in the prior art or related technologies.

To this end, according to an embodiment of the present invention, an object is to provide an oil pan liquid level adjustment device.

According to an embodiment of the present invention, another object is to provide an engine.

According to an embodiment of the present invention, another object is to provide a vehicle.

In order to achieve the above object, according to an embodiment of the first aspect of the present invention, there is provided an oil pan liquid level adjustment device for an engine oil pan, including: a gas charging cavity, which is arranged in the engine oil pan; The air assembly is communicated with the inflation cavity; wherein, the inflation cavity realizes inflation expansion or exhaust contraction through the air intake and exhaust assembly, so as to adjust the oil level in the engine oil pan through the volume change of the inflation cavity.

According to an embodiment of the first aspect of the present invention, the oil pan liquid level adjustment device includes an air charging cavity and an air intake and exhaust assembly. The inflatable cavity is arranged in the engine oil pan, and when the engine oil pan contains organic oil, the outer wall surface of the inflatable cavity can be in contact with the oil. The air intake and exhaust assembly is communicated with the interior of the inflatable cavity, and the air intake and exhaust assembly can supply air into the air inflatable cavity or exhaust the air from the air inflatable cavity to the outside. The volume of the inflatable cavity expands when the air is inflated into the inflatable cavity through the air intake and exhaust assembly, and the volume of the inflatable cavity shrinks when the air inflatable cavity is exhausted through the air intake and exhaust assembly, so that the inflatable cavity can pass through the inflatable cavity. The volume change of the body changes the size of the space in the engine oil pan that can hold the oil, thereby adjusting the oil level. When the oil level in the engine oil pan drops and the oil collector cannot collect oil normally, the air intake and exhaust components can be used to inflate the inflation cavity to expand the volume of the inflation cavity, thereby raising the oil level to facilitate the oil The collector collects oil to meet the lubrication needs of the engine. Wherein, the intake and exhaust components can realize the intake and exhaust operations by sharing one structure, and also can separately set the intake structure and the exhaust structure to perform the intake and exhaust operations respectively.

It can be understood that with the use of the engine, the oil level in the engine oil pan will gradually decrease. When the oil level is lower than the oil collecting device, it will cause the oil to be unable to be supplied to the lubrication system normally; When the angle is too large (for example, greater than 45°), the liquid level in the oil pan will also change, which will affect the normal operation of the oil collecting device. The oil pan liquid level adjustment device of this scheme can adjust the oil level through the volume change of the inflatable cavity, which can effectively prevent the influence of the oil level drop on the engine lubrication system, and is beneficial to prolong the service life of the engine lubricating parts.

In addition, the oil pan liquid level adjustment device in the above technical solution provided according to the embodiment of the first aspect of the present invention may also have the following additional technical features:

In the above technical solution, at least part of the structure of the inflatable cavity is an elastic member, and the elastic member is elastically deformed under the action of the pressure of the gas in the inflatable cavity, so that the inflatable cavity can be inflated or deflated.

In this technical solution, at least part of the structure of the inflatable cavity is configured as an elastic member, so as to utilize the elastic deformation of the elastic member to change the overall volume of the inflatable cavity. Wherein, when inflating the inflation cavity, the elastic member expands outward under the action of the gas pressure, so as to squeeze the oil in the engine oil pan through the elastic member, so that the oil level rises. The elastic member may be an elastic film, such as a rubber film, which has a simple structure and is easy to implement.

In the above technical solution, the oil pan liquid level adjustment device further comprises: an oil liquid cavity, which is arranged in the engine oil pan and used for accommodating the oil, and the oil liquid cavity is provided with an overflow hole, and the oil liquid cavity passes through the oil liquid cavity. The overflow hole is communicated with the engine oil pan, and the distance from the overflow hole to the bottom plate of the oil chamber is not less than the distance threshold, wherein the elastic member is arranged on the side plate of the air chamber, and the oil chamber and the air chamber The side plates with elastic parts on the body are connected, and the elastic parts can expand into the oil cavity under the action of gas pressure to squeeze the oil in the oil cavity, so that the oil flows to the engine oil pan through the overflow hole internal flow to adjust the oil level in the engine oil pan.

In this technical solution, an oil liquid cavity capable of accommodating oil is provided in the engine oil pan to provide storage space for spare oil. The oil cavity is provided with an overflow hole, which connects the inside of the oil cavity with the engine oil pan; the distance from the limited overflow hole to the bottom plate of the oil cavity is not less than the distance threshold, so that the oil cavity can be stored in the oil cavity The oil flows into the engine oil pan through the overflow hole only when the oil level in the oil chamber is higher than the distance threshold. The elastic piece is arranged on the side plate of the gas-filled cavity, the oil-liquid cavity is connected with the side board provided with the elastic piece, and the elastic piece can expand into the oil-liquid cavity under the action of the gas pressure, so as to make the gas inflatable. The rear elastic member squeezes the oil in the oil chamber, so that the oil level in the oil chamber rises, and then flows to the engine oil pan through the overflow hole to increase the amount of oil in the engine oil pan, so that the The oil level in the engine oil pan rises to adjust the oil level. The number of overflow holes can be multiple, and can be provided on the side plate and/or the top plate of the oil chamber; the distance threshold can be set according to the specific size of the oil chamber. Wherein, the oil cavity and the gas-filled cavity may be an integral structure. In this scheme, the oil level is raised by supplementing the spare oil into the engine oil pan, the effect of the level adjustment is more obvious, and it is easy to control.

In the above technical solution, the oil pan liquid level adjustment device further comprises: a return spring, which is arranged in the oil cavity and/or in the air-filled cavity, one end of the return spring is connected with the elastic member, and the other end of the return spring is connected with the oil The side plates of the cavity or the side plates of the gas-filled cavity are connected to reset the elastic piece by the elastic force of the return spring.

In this technical solution, a return spring is arranged in the gas-filled cavity and/or the oil cavity to facilitate the return of the elastic member. Specifically, when the return spring is arranged in the gas-filled cavity, one end of the return spring is connected to the elastic member, and the other end is connected to the side plate of the gas-filled cavity; when the return spring is arranged in the oil-liquid cavity, one end of the return spring is It is connected with the elastic piece, and the other end is connected with the side plate of the oil chamber. When supplying air to the air-filled cavity, the elastic member expands and deforms to the side of the oil-liquid cavity under the action of the gas pressure, and compresses or stretches the return spring, so that the return spring is elastically deformed and has a tendency to return to its original state. ; During the exhaust operation, the air pressure on one side of the inflatable cavity is reduced, and the return spring drives the elastic piece to move to the side of the inflatable cavity through the action of elastic force to achieve reset. Wherein, the number of return springs may be one or more.

In the above technical solution, the inflatable cavity is formed by a top plate, a plurality of side plates, and part of the bottom wall and part of the side wall of the engine oil pan, wherein the air intake and exhaust components are connected to the side walls.

In this technical solution, the inflatable cavity is formed by a top plate, a plurality of side plates, and part of the bottom wall and part of the side wall of the engine oil pan. On the one hand, the structure can be simplified and processing is facilitated; Part of the bottom wall and part of the side wall form the bottom plate and side plate of the inflatable cavity, and the air intake and exhaust components can be communicated with the inflatable cavity through the connecting holes on the side wall or bottom wall, which is convenient for the connection of the air intake and exhaust components. Wherein, when the air intake and exhaust assembly is connected to the side wall, the connection of the pipeline is convenient, and after the engine with the engine oil pan is assembled on the vehicle, the ground clearance of the air intake and exhaust assembly can be increased, which is beneficial to reduce the intake and exhaust air. Possibility of damage to exhaust components by impact from foreign objects.

In the above technical solution, the air intake and exhaust assembly includes: an air intake mechanism, communicated with the inflatable cavity, and used for supplying air into the inflatable cavity; an exhaust mechanism, communicated with the inflatable cavity, used to make the inflation cavity to External exhaust.

In this technical solution, the exhaust assembly includes an intake mechanism and an exhaust mechanism, and the intake mechanism and the exhaust mechanism are both communicated with the inflatable cavity, so as to respectively perform intake and exhaust operations on the inflatable cavity. Among them, the gas flows unidirectionally into the inflation cavity through the intake mechanism during the charging operation, and the gas flows unidirectionally to the outside through the exhaust mechanism during the exhausting operation, which can improve the efficiency of the intake operation and exhaust operation, and is conducive to accurate Controls the gas pressure in the inflation chamber. It should be noted that the air intake mechanism is connected with the external air source to obtain gas; the exhaust mechanism can be directly communicated with the outside atmosphere to discharge the gas in the inflatable cavity to the outside atmosphere, or can be communicated with the air source to make the inflatable cavity The gas in the body is returned to the gas source for recycling.

In the above technical solution, the air intake mechanism includes: an air intake pipe, which is arranged outside the engine oil pan, one end of the air intake pipe is connected to the side wall and communicated with the charging cavity, and the other end of the air intake pipe is used for connecting with external air The source connection; the switch piece is arranged in the air inlet pipe, and the switch piece can turn on or off the air inlet pipe; the one-way valve is arranged in the air inlet pipe, so that the gas in the air inlet pipe flows in one direction into the inflatable cavity.

In this technical solution, the air intake mechanism includes an air intake pipe, a switch element and a one-way valve. The air intake pipe is set outside the engine oil pan; one end of the air intake pipe is connected to the charging cavity through the side wall of the engine oil pan, and the other end of the air intake pipe is used to connect with the external air source to obtain gas, so that the external air source The gas can flow into the inflatable cavity through the intake pipe. The switch element is arranged in the air intake pipe, and is used for conducting or closing the air intake pipe, so as to control the air supply operation to the inflatable cavity. Wherein, the switch element may be an on-off valve, a reversing valve or other components that can conduct or close the intake pipe. A one-way valve is arranged in the air intake pipe, so that the gas in the air intake pipe flows in one direction into the inflation cavity during the inflation process, so as to prevent the gas in the inflation cavity from flowing back and affecting the normal inflation operation. Wherein, the one-way valve can be arranged on the side of the switch member close to the inflatable cavity, or can be arranged on the side of the switch member away from the inflatable cavity, both of which can play the role of unidirectional conduction of gas.

In the above technical solution, the oil pan liquid level adjustment device further includes: a liquid level detector, which is arranged in the engine oil pan and used to detect the oil level in the engine oil pan; a controller, which is connected with the liquid level detector. It is electrically connected with the intake and exhaust components, and the controller controls the working state of the intake and exhaust components according to the oil level in the engine oil pan, so as to adjust the oil level in the engine oil pan.

In this technical solution, a liquid level detector is provided in the engine oil pan to detect the oil level in the engine oil pan. A controller electrically connected to the liquid level detector is provided to receive the detection data of the liquid level detector; the controller is electrically connected to the liquid level detector and the intake and exhaust components to control the intake and exhaust according to the detection data of the liquid level detector The working state of the gas components can be automatically adjusted to the oil level of the engine oil pan without manual operation, and the accuracy is higher. The controller may be a dedicated control device or an electronic controller (Electronic Control Unit, ECU for short) of the engine.

An embodiment according to the second aspect of the present invention provides an engine, comprising: an engine body, an engine oil pan is provided at the bottom of the engine body for accommodating oil; an oil collector communicated with a lubricating system of the engine body, the oil One end of the collector extends into the engine oil sump to collect the oil in the engine oil sump; the oil sump liquid level adjustment device in the embodiment of the first aspect is connected to the engine oil sump to collect the oil in the engine oil sump. Adjust the oil level in the engine oil pan.

According to an embodiment of the second aspect of the present invention, an engine includes an engine body, an oil collector, and the oil pan liquid level adjusting device in the embodiment of the first aspect. The bottom of the engine body is provided with an engine oil pan to contain oil. The oil collector is communicated with the lubricating system of the engine body, and one end of the oil collector extends into the engine oil pan to collect the oil in the engine oil pan and supply the oil to the lubricating system. The inflation cavity of the oil pan liquid level adjustment device is arranged in the engine oil pan, the air intake and exhaust components of the oil pan liquid level adjustment device are communicated with the inflation cavity through the engine oil pan, and the air intake and exhaust components can communicate with the outside Air connection. Wherein, the oil collector may be an oil pump.

When the oil level in the engine oil sump drops, making it difficult for the oil collector to collect oil, or when the engine is tilted at a large angle (for example, greater than 45°) and the oil level is lower than the oil collector, the intake and exhaust components can be passed through. Supply air to the inflation cavity to inflate and expand the inflation cavity, and then adjust the oil level in the engine oil pan through the volume change of the inflation cavity, so that the oil collector can normally supply oil to the lubrication system of the engine body .

In addition, the engine in this solution also has all the beneficial effects of the oil pan liquid level adjusting device in the embodiment of the first aspect, which will not be repeated here.

According to an embodiment of the third aspect of the present invention, a vehicle is provided, comprising: a vehicle body; an engine as in the embodiment of the second aspect above, which is arranged in the vehicle body and used to drive the vehicle body to travel; an air supply device, The air supply device is connected to the air intake and exhaust components of the oil pan liquid level adjustment device in the engine, so as to supply air to the air-filled cavity of the oil pan liquid level adjustment device.

According to an embodiment of the third aspect of the present invention, a vehicle includes a vehicle body, the engine of the above-described embodiment of the second aspect, and an air supply device. The engine is installed in the vehicle body to provide power for the vehicle body and drive the vehicle body to run. By arranging an air supply device in the vehicle body, and the air supply device is connected with the air intake and exhaust components of the oil pan liquid level adjustment device in the engine, the air is supplied to the inflation cavity of the oil pan liquid level adjustment device through the air intake and exhaust components, The inflation cavity is inflated and expanded by the pressure of the gas, and the oil level in the engine oil pan is adjusted through the volume change of the inflation cavity. In addition, the vehicle in this solution also has all the beneficial effects of the engine in the embodiment of the second aspect, which will not be repeated here.

Additional aspects and advantages of embodiments in accordance with the invention will become apparent in the description section that follows, or learned through practice of embodiments in accordance with the invention.

Description of drawings

The above and/or additional aspects and advantages of embodiments according to the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

1 shows a partial cross-sectional view of an oil pan liquid level adjustment device according to an embodiment of the present invention;

FIG. 2 shows a partial cross-sectional view of an oil pan liquid level adjustment device according to an embodiment of the present invention;

3 shows a cross-sectional view of an engine oil pan according to an embodiment of the present invention;

4 shows a partial cross-sectional view of an oil pan liquid level adjustment device according to an embodiment of the present invention;

Fig. 5 shows the enlarged view of A part in Fig. 4;

6 shows a partial cross-sectional view of an oil pan liquid level adjustment device according to an embodiment of the present invention;

FIG. 7 shows a partial cross-sectional view of an oil pan liquid level adjustment device according to an embodiment of the present invention;

8 shows a partial cross-sectional view of an oil pan liquid level adjustment device according to an embodiment of the present invention;

9 shows a cross-sectional view of an engine oil pan according to an embodiment of the present invention;

Figure 10 shows a cross-sectional view of an engine oil pan according to one embodiment of the present invention;

11 shows a partial cross-sectional view of an oil pan liquid level adjustment device according to an embodiment of the present invention;

Figure 12 shows a cross-sectional view of an engine according to an embodiment of the present invention;

Figure 13 shows a schematic block diagram of a vehicle according to an embodiment of the present invention.

The correspondence between the reference numerals and the components in Figures 1 to 13 is as follows:

1 Oil pan liquid level adjustment device, 11 Inflatable cavity, 111 Elastic parts, 112 Side plate, 113 Top plate, 12 Intake and exhaust components, 121 Intake mechanism, 1211 Intake pipe, 1212 Switch parts, 1213 Check valve, 122 Exhaust mechanism, 13 oil chamber, 131 overflow hole, 132 return spring, 14 liquid level detector, 15 controller, 2 engine, 21 engine body, 211 engine oil pan, 2111 side wall, 2112 bottom wall, 22 oil collector, 23 oil dipstick, 24 oil drain valve, 3 vehicle, 31 body, 32 air supply device.

Detailed ways

In order to more clearly understand the above objects, features and advantages of the present application, the embodiments according to the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

Many specific details are set forth in the following description to facilitate a full understanding of the embodiments according to the present invention. However, the embodiments according to the present invention may also be implemented in other ways different from those described herein. Therefore, the protection of the present application The scope is not to be limited by the specific examples disclosed below.

The following describes an oil pan liquid level adjusting device, an engine, and a vehicle according to some embodiments of the present invention with reference to FIGS. 1 to 13 .

Example 1

In this embodiment, an oil pan liquid level adjusting device 1 is provided, which is used for the engine oil pan 211 .

As shown in FIG. 1 to FIG. 3 , the oil pan liquid level adjusting device 1 includes an air charging cavity 11 and an air intake and exhaust assembly 12 . The inflatable cavity 11 is disposed in the engine oil pan 211 , and when the engine oil pan 211 contains the oil, the outer wall surface of the inflatable cavity 11 can be in contact with the oil. At least part of the structure of the inflatable cavity 11 may undergo expansion deformation. The air intake and exhaust assembly 12 is communicated with the inside of the inflatable cavity 11, and the air intake and exhaust assembly 12 can supply air into the inflatable cavity 11 to expand the volume of the inflatable cavity 11 (the state shown in FIG. 2); the inflatable cavity 11 can also be exhausted to the outside through the air intake and exhaust assembly 12, so that the volume of the inflatable cavity 11 is contracted (the state shown in FIG. 1 ). The size of the space that can accommodate the oil in the engine oil pan 211 is changed by the volume change of the inflation cavity 11 , thereby realizing the adjustment of the oil level. When the oil level in the engine oil pan 211 drops and the oil collector 22 cannot collect oil normally, the air inlet and exhaust assembly 12 can be used to inflate the inflation cavity 11, so that the inflation cavity 11 expands the volume and makes the oil level It rises so that the oil collector 22 can collect oil to meet the lubrication requirements of the engine.

The oil pan liquid level adjustment device 1 of this embodiment can adjust the oil level by changing the volume of the inflation cavity 11 , and is suitable for working when the engine is inclined at a relatively large angle (for example, the inclination angle is greater than 45°), which can effectively prevent The impact of the drop in the oil level on the engine lubrication system is beneficial to prolong the service life of the engine lubricating parts.

It should be noted that, the air intake and exhaust assembly 12 can realize air intake and exhaust operations by sharing a structure, or can be provided with an air intake structure and an exhaust structure respectively, so as to perform air intake and exhaust operations respectively.

Embodiment 2

This embodiment provides an oil pan liquid level adjusting device 1, which is further improved on the basis of the first embodiment.

As shown in FIG. 3 , at least part of the structure of the inflatable cavity 11 is an elastic member 111 . When inflating the inflatable cavity 11 through the air intake and exhaust assembly 12 , the elastic member 111 is under the action of the pressure of the gas in the inflatable cavity 11 . Expanding outward, the overall volume of the inflatable cavity 11 is changed by the elastic deformation of the elastic member 111, thereby reducing the space in the engine oil pan 211 that can accommodate the oil, and squeezing the oil in the engine oil pan 211, so that the oil The liquid level rises to adjust the oil level. The elastic member 111 may be an elastic film, such as a rubber film, which has a simple structure and is easy to implement.

Embodiment 3

This embodiment provides an oil pan liquid level adjusting device 1, which is further improved on the basis of the second embodiment.

As shown in FIG. 4 and FIG. 5 , the oil pan liquid level adjusting device 1 further includes an oil liquid cavity 13 , which is arranged in the engine oil pan 211 and is used to provide a storage space for spare oil. The oil chamber 13 is provided with an overflow hole 131, the overflow hole 131 communicates between the inside of the oil chamber 13 and the engine oil pan 211, and the distance from the overflow hole 131 to the bottom plate of the oil chamber 13 is not less than the distance threshold , that is, the overflow hole 131 has a certain height, so that the part below the overflow hole 131 in the oil liquid cavity 13 can store oil.

An elastic member 111 is provided on the side plate 112 of the inflatable cavity 11 , and the oil chamber 13 is connected with the side plate 112 provided with the elastic member 111 . When the air intake and exhaust assembly 12 inflates the inflation cavity 11, the elastic member 111 can expand into the oil liquid cavity 13 under the action of the gas pressure, so that the volume of the oil liquid cavity 13 can be reduced by the expanded elastic member 111, The oil in the oil chamber 13 is squeezed, so that the oil level in the oil chamber 13 rises, so that the oil in the oil chamber 13 flows into the engine oil pan 211 through the overflow hole 131 . In order to increase the amount of oil in the engine oil pan 211, the oil level in the engine oil pan 211 is raised, so as to adjust the oil level. The number of overflow holes 131 can be multiple, and can be provided on the side plate and/or the top plate of the oil chamber 13 ; the distance threshold can be set according to the specific size of the oil chamber 13 .

Embodiment 4

This embodiment provides an oil pan liquid level adjusting device 1, which is further improved on the basis of the third embodiment.

As shown in FIG. 6 , a return spring 132 is provided in the oil chamber 13 to facilitate the return of the elastic member 111 . Specifically, one end of the return spring 132 is connected to the elastic member 111 , and the other end is connected to the wall surface of the oil cavity 13 opposite to the elastic member 111 . When supplying air into the air-filled cavity 11, the elastic member 111 expands and deforms toward the oil cavity 13 under the action of the gas pressure, and compresses the return spring 132, so that the return spring 132 is elastically deformed and has the ability to return to its original shape. During the exhaust operation, the air pressure on the side of the inflatable cavity 11 is reduced, and the return spring 132 drives the elastic member 111 to move toward the side of the inflatable cavity 11 through elastic force, so that the elastic member 111 can be reset. The number of return springs 132 may be one or more.

It should be noted that the return spring 132 can also be arranged in the inflatable cavity 11, and the two ends of the return spring 132 are respectively connected with the elastic member 111 and the inner wall surface of the inflatable cavity 11, so that during the inflation operation, the elastic member 111 is reset to The spring 132 is stretched, and during the deflation operation, the return spring 132 promotes the return of the elastic member 111 through elastic force. When the number of the return springs 132 is multiple, the return springs 132 may be provided in the gas-filled cavity 11 and the oil cavity 13 at the same time.

Embodiment 5

This embodiment provides an oil pan liquid level adjusting device 1, which is further improved on the basis of the first embodiment.

As shown in FIGS. 3 and 7 , the inflatable cavity 11 is provided in the engine oil pan 211 near one side wall 2111 , and the inflatable cavity 11 consists of a top plate 113 , a plurality of side plates 112 and an engine oil pan 211 Part of the bottom wall 2112 and part of the side wall 2111 of the engine oil pan 211 are enclosed and formed, so that part of the bottom wall 2112 and part of the side wall 2111 of the engine oil pan 211 form the bottom plate and the side plate 112 of the air-filled cavity 11, and the intake and exhaust components 12 pass through the side wall. The communication between the 2111 and the inflatable cavity 11 facilitates the connection of the air intake and exhaust components 12, simplifies the structure, and reduces the processing difficulty and processing cost. In addition, after the engine with the engine oil pan 211 is assembled in the vehicle, the ground clearance of the air intake and exhaust assembly 12 can be increased, which is beneficial to reduce the possibility of damage to the air intake and exhaust assembly 12 due to collision with foreign objects.

Embodiment 6

This embodiment provides an oil pan liquid level adjusting device 1, which is further improved on the basis of the fifth embodiment.

As shown in FIGS. 1 and 8 , the exhaust assembly includes an intake mechanism 121 and an exhaust mechanism 122 . Both the intake mechanism 121 and the exhaust mechanism 122 communicate with the charging cavity 11 through the side wall 2111 of the engine oil pan 211 . , so as to perform the intake and exhaust operations on the inflatable cavity 11 respectively, which can improve the efficiency of the intake operation and the exhaust operation, and is beneficial to accurately control the gas pressure in the inflatable cavity 11 .

Specifically, the air intake mechanism 121 includes an air intake pipe 1211 , a switch member 1212 and a one-way valve 1213 . The intake pipe 1211 is arranged outside the engine oil pan 211; one end of the intake pipe 1211 is communicated with the charging cavity 11 through the side wall 2111 of the engine oil pan 211, and the other end of the intake pipe 1211 is used for connecting with an external air source; During the inflation operation, the gas from the external air source flows into the inflation cavity 11 through the air intake pipe 1211 . The switch element 1212 is arranged in the air intake pipe 1211 and is used to turn on or off the air intake pipe 1211 to control the air supply operation to the inflatable cavity 11 . The switch element 1212 may be an on-off valve, a reversing valve or other components that can conduct or close the intake pipe 1211 . The one-way valve 1213 is arranged in the air intake pipe 1211, and is located on the side of the switch member 1212 close to the inflation cavity 11, so as to make the gas in the air intake pipe 1211 flow one-way into the inflation cavity 11 during the inflation process, preventing the inflation cavity The gas in the body 11 will flow back and affect the normal inflation operation.

It should be noted that, the one-way valve 1213 can also be provided on the side of the switch member 1212 away from the gas-filled cavity 11 , which can also play a role in making the gas conduct in one direction. The exhaust mechanism 122 can be an exhaust valve, and the exhaust mechanism 122 can be directly communicated with the outside atmosphere, or communicated with the air source to return the gas in the inflation cavity 11 to the air source for recycling.

Further, as shown in FIG. 9 , an oil dipstick 23 is provided in the engine oil pan 211 for detecting the oil level in the engine oil pan 211 , so as to control the charging according to the oil level in the engine oil pan 211 . Deflate operation.

Embodiment 7

This embodiment provides an oil pan liquid level adjusting device 1, which is further improved on the basis of the first embodiment.

As shown in FIG. 10 , the oil pan liquid level adjustment device 1 further includes a liquid level detector 14 and a controller 15 . The liquid level detector 14 is installed in the engine oil pan 211 to detect the oil level in the engine oil pan 211 . The controller 15 is electrically connected with the liquid level detector 14 to receive the detection data of the liquid level detector 14 and determine whether the oil level needs to be adjusted according to the oil level in the detected data; the controller 15 is connected to the air intake and exhaust assembly 12 is electrically connected to control the working state of the air intake and exhaust assembly 12 according to the detection data of the liquid level detector 14, and when the oil level in the engine oil pan 211 is low, the air intake and exhaust assembly 12 is controlled to enter the inflation cavity. Air is supplied to expand the volume of the inflation cavity 11, thereby realizing automatic adjustment of the oil level in the engine oil pan 211, without manual operation, and with higher accuracy.

It should be noted that the controller 15 in this embodiment may be a special control device, or may be an electronic control unit (Electronic Control Unit, ECU for short) of the engine.

Embodiment 8

In this embodiment, an oil pan liquid level adjusting device 1 is provided, which is used for the engine oil pan 211 .

As shown in Fig. 3, Fig. 4 and Fig. 11, the oil pan liquid level adjusting device 1 includes an air charging cavity 11, an air intake and exhaust assembly 12, an oil cavity 13, a return spring 132, a liquid level detector 14 and a controller 15.

The inflatable cavity 11 is disposed in the engine oil pan 211 , and when the engine oil pan 211 contains the oil, the outer wall surface of the inflatable cavity 11 can be in contact with the oil. The inflatable cavity 11 is provided in the engine oil pan 211 near one side wall 2111 , and the inflatable cavity 11 consists of a top plate 113 , a plurality of side plates 112 , and a part of the bottom wall 2112 and part of the side wall of the engine oil pan 211 . 2111 is enclosed and formed, so that part of the bottom wall 2112 and part of the side wall 2111 of the engine oil pan 211 form the bottom plate and side plate 112 of the air-filled cavity 11, which facilitates the connection of the intake and exhaust components 12, and simplifies the structure and reduces the processing time. difficulty and processing cost. The side plate 112 of the inflatable cavity 11 opposite to the air intake and exhaust assembly 12 is provided with an elastic member 111 . The elastic member 111 may be an elastic film, such as a rubber film, which has a simple structure and is easy to implement.

The oil chamber 13 is connected with the side plate 112 provided with the elastic member 111 . The oil chamber 13 is used to provide a storage space for spare oil. The oil chamber 13 is provided with an overflow hole 131, the overflow hole 131 communicates between the inside of the oil chamber 13 and the engine oil pan 211, and the distance from the overflow hole 131 to the bottom plate of the oil chamber 13 is not less than the distance threshold , that is, the overflow hole 131 has a certain height, so that the part below the overflow hole 131 in the oil liquid cavity 13 can store oil. The number of overflow holes 131 can be multiple, and can be provided on the side plate and/or the top plate of the oil chamber 13 ; the distance threshold can be set according to the specific size of the oil chamber 13 .

The exhaust assembly includes an intake mechanism 121 and an exhaust mechanism 122. Both the intake mechanism 121 and the exhaust mechanism 122 are communicated with the charging cavity 11 through the side wall 2111 of the engine oil pan 211, so as to carry out the charging of the charging cavity 11 respectively. Intake and exhaust operation. Specifically, the air intake mechanism 121 includes an air intake pipe 1211 , a switch member 1212 and a one-way valve 1213 . The intake pipe 1211 is arranged outside the engine oil pan 211; one end of the intake pipe 1211 is communicated with the charging cavity 11 through the side wall 2111 of the engine oil pan 211, and the other end of the intake pipe 1211 is used for connecting with an external air source; During the inflation operation, the gas from the external air source flows into the inflation cavity 11 through the air intake pipe 1211 . The switch element 1212 is arranged in the air intake pipe 1211 and is used to turn on or off the air intake pipe 1211 to control the air supply operation to the inflatable cavity 11 . The switch element 1212 may be an on-off valve, a reversing valve or other components that can conduct or close the intake pipe 1211 . The one-way valve 1213 is arranged in the air intake pipe 1211, and is located on the side of the switch member 1212 close to the inflation cavity 11, so as to make the gas in the air intake pipe 1211 flow one-way into the inflation cavity 11 during the inflation process, preventing the inflation cavity The gas in the body 11 will flow back and affect the normal inflation operation. The exhaust mechanism 122 can be an exhaust valve, and the exhaust mechanism 122 can be directly communicated with the outside atmosphere, or communicated with the air source to return the gas in the inflation cavity 11 to the air source for recycling.

When the external air source inflates the inflation cavity 11 through the air intake pipe 1211 , the elastic member 111 can expand into the oil liquid cavity 13 under the action of the gas pressure, so as to reduce the oil liquid cavity 13 through the expanded elastic member 111 The volume of the oil in the oil chamber 13 is squeezed, so that the oil level in the oil chamber 13 rises, and the oil in the oil chamber 13 flows to the engine oil pan through the overflow hole 131 211 to increase the amount of oil in the engine oil pan 211, so that the oil level in the engine oil pan 211 rises, so as to adjust the oil level.

The return spring 132 is arranged in the oil chamber 13 , one end of the return spring 132 is connected to the elastic member 111 , and the other end is connected to the wall surface of the oil chamber 13 opposite to the elastic member 111 . When supplying air into the air-filled cavity 11, the elastic member 111 expands and deforms toward the oil cavity 13 under the action of the gas pressure, and compresses the return spring 132, so that the return spring 132 is elastically deformed and has the ability to return to its original shape. During the exhaust operation, the air pressure on the side of the inflatable cavity 11 is reduced, and the return spring 132 drives the elastic member 111 to move toward the side of the inflatable cavity 11 through elastic force, so that the elastic member 111 can be reset. The number of return springs 132 may be one or more. Of course, the return spring 132 may also be provided in the inflatable cavity 11 , and both ends of the return spring 132 are connected to the elastic member 111 and the inner wall surface of the inflatable cavity 11 , respectively. When the number of the return springs 132 is multiple, the return springs 132 may be provided in the gas chamber 11 and the oil chamber 13 at the same time.

The oil pan liquid level adjusting device 1 further includes a liquid level detector 14 and a controller 15 . The liquid level detector 14 is installed in the engine oil pan 211 to detect the oil level in the engine oil pan 211 . The controller 15 is electrically connected with the liquid level detector 14 to receive the detection data of the liquid level detector 14 and determine whether the oil level needs to be adjusted according to the oil level in the detected data; the controller 15 is connected to the air intake and exhaust assembly 12 is electrically connected to control the working state of the air intake and exhaust assembly 12 according to the detection data of the liquid level detector 14, and when the oil level in the engine oil pan 211 is low, the air intake and exhaust assembly 12 is controlled to the inflation cavity. Air is supplied in 11 to expand the volume of the inflation cavity 11, thereby realizing automatic adjustment of the oil level in the engine oil pan 211, without manual operation, and with higher accuracy. The controller 15 may be a special control device, or may be an electronic control unit (Electronic Control Unit, ECU for short) of the engine.

The oil pan liquid level adjustment device 1 of this embodiment can adjust the oil level by changing the volume of the inflation cavity 11 , and is suitable for working when the engine is inclined at a relatively large angle (for example, the inclination angle is greater than 45°), which can effectively prevent The impact of the drop in the oil level on the engine lubrication system is beneficial to prolong the service life of the engine lubricating parts.

Embodiment 9

An engine 2 is provided in this embodiment. The engine 2 includes an engine body 21 , an oil collector 22 and the oil pan liquid level adjusting device 1 in any of the above embodiments.

As shown in FIGS. 1 and 12 , the bottom of the engine body 21 is provided with an engine oil pan 211 to accommodate oil. The oil collector 22 is communicated with the lubrication system of the engine body 21, and one end of the oil collector 22 extends into the engine oil pan 211 to collect oil in the engine oil pan 211 and supply oil to the lubrication system. The inflation cavity 11 of the oil pan liquid level adjusting device 1 is arranged in the engine oil pan 211, and the air intake and exhaust components 12 of the oil pan liquid level adjusting device 1 protrude outward from the engine oil pan 211 and can be connected with the engine oil pan 211. External air supply connection. Wherein, the oil collector 22 may be an oil pump.

When the oil level in the engine oil pan 211 drops, making it difficult for the oil collector 22 to collect oil, or when the engine 2 is tilted at a large angle (for example, greater than 45°) and the oil level is lower than the oil collector 22, the The air intake and exhaust assembly 12 supplies air to the inflatable cavity 11, and the inflation cavity 11 is expanded and deformed by the pressure of the gas, so as to realize the adjustment of the oil level in the engine oil pan 211, so that the oil collector 22 can normally flow to the inflatable cavity 11. The lubrication system of the engine body 21 supplies oil.

Further, an oil dipstick 23 is also provided in the engine oil pan 211 for marking the oil level, so that the operator can know the oil level in the engine oil pan 211 through the oil dipstick 23 . An oil drain valve 24 is provided at the bottom of the engine oil pan 211 for draining oil so as to facilitate oil replacement.

In addition, the engine 2 in this embodiment also has all the beneficial effects of the oil pan liquid level adjusting device 1 of any of the above embodiments, which will not be repeated here.

Embodiment ten

In this embodiment, a vehicle 3 is provided, as shown in FIG. 13 , including a vehicle body 31 , the engine 2 in the above-mentioned eighth embodiment, and an air supply device 32 .

As shown in FIGS. 1 and 13 , the engine 2 is provided in the vehicle body 31 to provide power for the vehicle body 31 to drive the vehicle body 31 to travel. The air supply device 32 is arranged in the vehicle body 31, and the air supply device 32 is connected with the air intake and exhaust assembly 12 of the oil pan liquid level adjustment device 1 in the engine 2, so as to pass the air intake and exhaust assembly 12 to the oil pan liquid level adjustment device. Air is supplied in the inflation cavity of 1, and the inflation cavity 11 is expanded and deformed by the pressure of the gas, thereby realizing the adjustment of the oil level in the engine oil pan 211. In addition, the vehicle 3 in this embodiment also has all the beneficial effects of the engine 2 in any of the above-mentioned embodiments, which will not be repeated here.

The technical solutions according to some embodiments of the present invention are described in detail above with reference to the accompanying drawings. The oil level can be adjusted by changing the volume of the inflatable cavity, which can effectively prevent the impact of the drop in the oil level on the engine lubrication system, and is conducive to extending the The service life of engine lubricating parts prevents engine damage.

In the embodiment according to the present invention, the terms "first", "second" and "third" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two one or two or more, unless otherwise expressly limited. The terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be It is directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

In the description of the embodiments according to the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. is based on the attached The orientation or positional relationship shown in the figures is only for the convenience and simplification of description, rather than indicating or implying that the referred device or unit must have a specific direction, be constructed and operated in a specific orientation, and therefore should not be construed as a Limitations of the embodiments of the present invention.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiment", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in accordance with the present invention at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above are only preferred embodiments according to the present invention, and are not intended to limit the technical solutions of the present application. For those skilled in the art, the technical solutions of the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (10)

1. An oil pan liquid level adjusting device (1) for use in an engine oil pan (211), characterized in that, comprising: an inflatable cavity (11), arranged in the engine oil pan (211); an air intake and exhaust assembly (12), communicated with the inflatable cavity (11); Wherein, the inflation cavity (11) realizes inflation expansion or exhaust gas contraction through the air intake and exhaust assembly (12), so as to adjust the engine oil pan (211) through the volume change of the inflation cavity (11). ) oil level. 2. The oil pan liquid level adjusting device (1) according to claim 1, characterized in that, At least part of the structure of the inflatable cavity (11) is an elastic piece (111), and the elastic piece (111) is elastically deformed under the action of the pressure of the gas in the inflatable cavity (11), so that the The inflation cavity (11) realizes inflation expansion or exhaust contraction. 3. The oil pan liquid level adjusting device (1) according to claim 2, characterized in that, further comprising: An oil liquid cavity (13) is arranged in the engine oil pan (211) for containing oil, an overflow hole (131) is provided on the oil liquid cavity (13), and the oil liquid cavity (13) is provided with an overflow hole (131). The body (13) is communicated with the engine oil pan (211) through the overflow hole (131), and the distance from the overflow hole (131) to the bottom plate of the oil chamber (13) is not equal. less than the distance threshold; Wherein, the elastic member (111) is arranged on the side plate (112) of the inflatable cavity (11), and the oil cavity (13) and the inflatable cavity (11) are provided with the The side plates (112) of the elastic member (111) are connected, and the elastic member (111) can expand into the oil liquid cavity (13) under the action of gas pressure, so as to squeeze the oil liquid cavity the oil in the body (13), so that the oil flows into the engine oil pan (211) through the overflow hole (131), so as to adjust the oil level in the engine oil pan (211) . 4. The oil pan liquid level adjusting device (1) according to claim 3, characterized in that, further comprising: A return spring (132), arranged in the oil cavity (13) and/or in the gas-filled cavity (11), one end of the return spring (132) is connected with the elastic member (111) , the other end of the return spring (132) is connected with the side plate (112) of the oil chamber (13) or the side plate (112) of the gas-filled chamber (11) so as to pass the return spring (132) ) to restore the elastic member (111). 5. The oil pan liquid level adjustment device (1) according to any one of claims 1 to 4, characterized in that, The inflatable cavity (11) is enclosed and formed by a top plate (113), a plurality of side plates (112), and part of the bottom wall (2112) and part of the side wall (2111) of the engine oil pan (211); Wherein, the air intake and exhaust assembly (12) is connected to the side wall (2111). 6. The oil pan liquid level adjustment device (1) according to claim 5, wherein the air intake and exhaust assembly (12) comprises: an air intake mechanism (121), communicated with the inflatable cavity (11), and used for supplying air into the inflatable cavity (11); An exhaust mechanism (122) communicates with the inflatable cavity (11) and is used for exhausting the inflatable cavity (11) to the outside. 7. The oil pan liquid level adjustment device (1) according to claim 6, wherein the air intake mechanism (121) comprises: An air intake pipe (1211) is arranged outside the engine oil pan (211), and one end of the air intake pipe (1211) is connected to the side wall (2111) and is connected to the gas charging cavity (11) The other end of the air inlet pipe (1211) is used for connecting with an external air source; a switch member (1212), arranged in the air intake pipe (1211), the switch member (1212) can turn on or off the air intake pipe (1211); A one-way valve (1213) is arranged in the air inlet pipe (1211), so that the gas in the air inlet pipe (1211) flows in one direction into the inflation cavity (11). 8. The oil pan liquid level adjustment device (1) according to any one of claims 1 to 3, characterized in that, further comprising: a liquid level detector (14), arranged in the engine oil pan (211), for detecting the oil level in the engine oil pan (211); A controller (15) is electrically connected with the liquid level detector (14) and the air intake and exhaust assembly (12), the controller (15) according to the oil in the engine oil pan (211) The position controls the working state of the air intake and exhaust assembly (12) to adjust the oil level in the engine oil pan (211). 9. An engine (2), characterized in that, comprising: an engine body (21), an engine oil pan (211) is provided at the bottom of the engine body (21) for accommodating oil; An oil collector (22) communicates with the lubrication system of the engine body (21), and one end of the oil collector (22) extends into the engine oil pan (211) to collect the engine oil Oil in the bottom case (211); The oil pan liquid level adjusting device (1) according to any one of claims 1 to 8, which is connected with the engine oil pan (211) to adjust the liquid level in the engine oil pan (211). Oil level. 10. A vehicle (3), characterized in that it comprises: body (31); The engine (2) according to claim 9, provided in the vehicle body (31), for driving the vehicle body (31) to travel; An air supply device (32) is provided in the vehicle body (31), the air supply device (32) and the air intake and exhaust assembly (12) of the oil pan liquid level adjustment device (1) in the engine (2) ) is connected to supply air into the gas-filled cavity (11) of the oil pan liquid level adjustment device (1).

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