CN116181537A - Electromagnetic valve sinking offset double-oil-inlet-channel oil sprayer - Google Patents
Electromagnetic valve sinking offset double-oil-inlet-channel oil sprayer Download PDFInfo
- Publication number
- CN116181537A CN116181537A CN202310082494.1A CN202310082494A CN116181537A CN 116181537 A CN116181537 A CN 116181537A CN 202310082494 A CN202310082494 A CN 202310082494A CN 116181537 A CN116181537 A CN 116181537A
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- Prior art keywords
- oil
- cavity
- pressure
- hole
- solenoid valve
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- 238000007789 sealing Methods 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000000446 fuel Substances 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to the technical field of high-pressure common rails of diesel engines, and discloses an electromagnetic valve sinking offset double-oil-inlet-channel oil sprayer. The high-pressure oil liquid enters the oil sprayer body part and then is divided into two independent oil inlet oil ways which are eccentrically arranged to enter the oil nozzle part, and three sealing cavities are formed by the adjusting valve plate, the electric control body part and the oil nozzle part, wherein the three sealing cavities mainly control lifting of the needle valve by the control cavity, so as to control oil injection, and the oil pressures of the three cavities are different and are used for controlling lifting of the needle valve, so that oil injection is controlled. The invention has the advantages that: the pressure of the oil in the control cavity is controlled by the three oil holes, the needle valve is controlled to lift to control injection, the oil is respectively a first oil hole, a second oil hole and a third oil hole, the effects of different stages are different, the low-pressure oil liquid which flows back is connected with an external oil return device through an oil return port, the double oil inlet paths ensure that the oil is injected in a larger amount, the oil injection amount is stable, the product stability is high, and the service life is long.
Description
Technical Field
The invention relates to the technical field of high-pressure common rails of diesel engines, in particular to a submerged offset double-oil-inlet-channel oil sprayer of an electromagnetic valve.
Background
High pressure common rail fuel supply is widely used in diesel engines. The high pressure common rail is connected to an injector for selectively injecting high pressure fuel from the high pressure common rail into a combustion chamber of the diesel engine. In the fuel injectors used in the market today, high-pressure fuel from a high-pressure common rail is supplied to two oil passages of the fuel injector, i.e., a fuel control path and a fuel injection path, via a fuel supply port provided on a housing of the fuel injector. The oil control path extends from the oil supply port to a throttle passage provided in a valve seat of the ball valve via the oil control chamber, and then returns to the oil tank via the oil return passage. With the ball valve open, high pressure fuel from the fuel supply port can flow along the fuel control path.
Disclosure of Invention
The invention aims to provide an electromagnetic valve sinking offset double-oil-inlet-channel oil sprayer, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme.
The invention relates to a sinking bias double-oil-inlet-channel oil sprayer of an electromagnetic valve, which comprises an oil nozzle component, an electric controller body component, an adjusting valve plate, a sealing valve plate, an oil nozzle tightening cap and an oil sprayer body component. The high-pressure oil liquid enters the oil sprayer body part and then is divided into two independent oil channels to enter the oil nozzle part, the oil channels are two oil inlet channels which are eccentrically arranged, and three sealing cavities are formed by the adjusting valve plate, the electric control body part and the oil nozzle part.
According to a further technical scheme, the oil nozzle part consists of a needle valve body, a needle valve sleeve, a needle valve spring and a needle valve spring adjusting gasket.
According to a further technical scheme, the electric control body component consists of a sealing valve seat, a sealing ball, a ball seat, an armature spring, an armature pin, an electromagnetic valve spring, an electric control body, an electromagnetic valve spring adjusting pad, an electromagnetic valve spring seat pad, a butterfly spring and an electromagnetic valve.
According to a further technical scheme, the oil sprayer body part consists of a sealing gasket, a plug wire harness, an oil sprayer body and an oil pipe joint.
According to a further technical scheme, the sealing valve plate is respectively provided with a first oil hole, a second oil hole and a third oil hole, and the pressure of oil in the control cavity is controlled through the three oil holes, so that the needle valve is controlled to lift to control injection.
According to the technical scheme, the oil return cavity of the electric control body part is a low-pressure oil cavity, the cavity formed by the needle valve sleeve and the adjusting valve plate is a medium-pressure oil cavity control cavity, and the cavity connected with the oil inlet pipe is a high-pressure oil cavity. The upper end of the third oil hole is connected with the oil inlet, and the lower end of the third oil hole is connected with the medium-pressure oil cavity control cavity. The upper ends of the first oil hole and the second oil hole are connected with a low-pressure oil cavity, the lower end of the first oil hole is connected with a high-pressure oil cavity, and the lower end of the second oil hole is connected with a medium-pressure oil cavity control cavity.
According to a further technical scheme, all parts are connected with the oil nozzle tightening cap through the locating pin.
When the oil injector does not inject oil, the sealing ball is pressed on the ball seat, the oil nozzle component is not communicated with the electric controller body component, the oil pressure of the low-pressure cavity control cavity is equal to that of the high-pressure cavity, the needle valve falls under the action of pressure difference between the needle valve spring and the upper end and the lower end of the needle valve to block the oil injection port of the needle valve body, at the moment, high-pressure oil enters the medium-pressure cavity control cavity through the third oil hole, and meanwhile, the high-pressure oil in the high-pressure cavity flows into the medium-pressure cavity control cavity through the first oil hole, the low-pressure cavity and the second oil hole, and the oil injection speed of the medium-pressure cavity control cavity can be improved. When an oil injection signal is received, the armature is driven by electromagnetic force to rise, the sealing ball is driven by pressure to rise off the seat, the low-pressure cavity is connected with the outside, and the oil pressure is reduced to adjust the pressure difference of the three oil cavities by adjusting the pore sizes of the first oil hole, the second oil hole and the third oil hole. High-pressure oil at the lower end of the first oil hole directly flows into the low-pressure cavity through the first oil hole and finally flows into the oil return hole to be recovered by the oil return device after the sealing ball leaves the seat, oil in the middle-pressure cavity control cavity also flows into the low-pressure cavity through the second oil hole, but meanwhile, high-pressure oil simultaneously flows into the middle-pressure cavity control cavity through the third oil hole, the oil pressure in the middle-pressure cavity control cavity can be steadily reduced, and at the moment, the external pressure is larger than the pressure in the needle valve spring and the middle-pressure cavity control cavity, the needle valve is lifted, and the oil injector starts to inject oil. When the next oil injection stopping signal arrives, the armature loses electromagnetic force and falls, the sealing ball is seated, and the oil injector stops injecting oil, and the cycle is repeated.
The invention has the beneficial effects that:
the invention provides an electromagnetic valve sinking offset double-oil-inlet-channel oil sprayer, which can ensure stable oil injection quantity, ensure larger oil injection quantity, ensure higher stability of products and prolong service life;
according to the technical scheme, the method has the following technical effects:
a) The structure of the underneath electromagnetic valve ensures that the moving parts of the oil sprayer have less mass, low moving inertia and more stable injection.
b) The regulating valve plate, the electric control body part and the oil nozzle part form three sealing cavities with different oil pressures, and the sealing cavities are used for controlling the lifting of the needle valve, so that the injection rule is more suitable for combustion.
c) The double oil inlet channel design provides more oil inlet flow, less pressure loss at the mouth end and better combustion effect.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an oil circuit diagram of the present invention;
FIG. 4 is a schematic view of a chamber and a nozzle assembly of the present invention;
FIG. 5 is a schematic diagram of the components of the electronic controller of the present invention;
fig. 6 is a schematic view of the body of the fuel injector of the present invention.
Detailed Description
The invention will now be described in detail with reference to fig. 1-6, wherein for convenience of description, the orientations described below are now defined as follows: the vertical, horizontal, front-rear directions described below are identical to the vertical, horizontal, front-rear directions of the projection relationship of fig. 1 itself.
An electromagnetic valve sinking bias double-oil-inlet-channel oil sprayer is described with reference to fig. 1-6, and comprises an oil nozzle component, an electric controller body 15, an adjusting valve plate, a sealing valve plate 6, an oil nozzle tightening cap 14 and an oil sprayer body 21. The high-pressure oil liquid enters the oil sprayer body part and then is divided into two independent oil channels to enter the oil nozzle part, the oil channels are two oil inlet channels which are eccentrically arranged, and three sealing cavities are formed by the adjusting valve plate, the electric control body part and the oil nozzle part.
Preferably, the nozzle tip component consists of a needle valve body 1, a needle valve 2, a needle valve sleeve 3, a needle valve spring 4 and a needle valve spring adjusting gasket 5.
Preferably, the electric control body part consists of a sealing valve seat 7, a sealing ball 8, a ball seat 9, an armature spring 10, an armature 11, an armature pin 12, a solenoid valve spring 13, an electric control body 15, a solenoid valve spring adjusting pad 16, a solenoid valve spring seat pad 17, a belleville spring 18 and a solenoid valve.
Preferably, the injector body 21 is comprised of a gasket 19, a patch cord bundle 20, an injector body 21, and a patch tube connection 22.
Preferably, the sealing valve plate 6 is provided with a first oil hole 36, a second oil hole 37 and a third oil hole 38 respectively, and the pressure of the oil in the control cavity is controlled through the three oil holes, so that the needle valve 2 is controlled to lift to control injection.
Preferably, the oil return cavity of the electric controller body 15 is a low-pressure oil cavity 31, the cavity formed by the needle valve sleeve 3 propping against the adjusting valve plate is a medium-pressure oil cavity control cavity 32, and the cavity connected with the oil inlet pipe is a high-pressure oil cavity 33. The third oil hole 38 has an upper end connected to the oil inlet and a lower end connected to the medium-pressure oil chamber control chamber 32. The upper ends of the first oil hole 36 and the second oil hole 37 are connected with the low-pressure oil cavity 31, the lower end of the first oil hole 36 is connected with the high-pressure oil cavity 33, and the lower end of the second oil hole 37 is connected with the medium-pressure oil cavity control cavity 32.
Preferably, the various components are connected by locating pins and nipple caps 14.
After entering the oil sprayer body part, the high-pressure oil liquid is divided into two independent oil channels to enter the oil nozzle part, wherein the oil channels are two oil inlet oil channels which are eccentrically arranged. The three sealed cavities are formed by the regulating valve plate, the electric control body part and the oil nozzle part, the oil pressures of the three cavities are different, the control cavity is used for controlling the lifting of the needle valve and further controlling the injection of the oil, the sealed valve plate of the oil injector is provided with three oil holes for controlling the pressure of the oil in the control cavity, and further controlling the lifting of the needle valve to control the injection, the oil return cavity of the regulating valve plate is supported by the needle valve sleeve to form a low-pressure oil cavity 31, the cavity formed by the needle valve sleeve and the regulating valve plate is a medium-pressure oil cavity control cavity 32, and the cavity connected by the oil inlet pipe is a high-pressure oil cavity 33. The upper end of the third oil hole is connected with the oil inlet, and the lower end of the third oil hole is connected with the medium-pressure oil cavity control cavity 32. The upper ends of the first oil hole and the second oil hole are connected with a low-pressure oil cavity 31, the lower end of the first oil hole is connected with a high-pressure oil cavity 33, and the lower end of the second oil hole is connected with a medium-pressure cavity control cavity 32. When the oil injector does not inject oil, the sealing ball is pressed on the ball seat, the oil nozzle component is not communicated with the electric controller body component, the oil pressure of the low-pressure cavity 31, the oil pressure of the medium-pressure cavity control cavity 32 is equal to that of the high-pressure cavity 33, the needle valve 2 falls under the action of pressure difference between the needle valve spring 4 and the upper end and the lower end of the needle valve to block the oil injection port of the needle valve body, at the moment, high-pressure oil enters the medium-pressure cavity control cavity 32 through the third oil hole, and meanwhile, the high-pressure oil in the high-pressure cavity 33 flows into the medium-pressure cavity control cavity 32 through the first oil hole path low-pressure cavity 31 and the second oil hole, so that the oil injection speed of the medium-pressure cavity control cavity 32 can be increased. When an oil injection signal is received, the armature is driven by electromagnetic force to rise, the sealing ball is driven by pressure to rise off the seat, the oil pressure of the low-pressure cavity 31 connected with the outside is reduced to 0, and the pressure difference of the 3 oil cavities is adjusted by adjusting the pore sizes of the first oil hole, the second oil hole and the third oil hole. High-pressure oil at the lower end of the first oil hole directly flows into the low-pressure cavity through the first oil hole and finally flows into the oil return hole to be recovered by the oil return device after the sealing ball leaves the seat, oil in the middle-pressure cavity control cavity 32 also flows into the low-pressure cavity 31 through the second oil hole, but meanwhile, high-pressure oil simultaneously flows into the middle-pressure cavity control cavity 32 through the third oil hole, the oil pressure in the middle-pressure cavity control cavity 32 can be steadily reduced, and at the moment, the needle valve 2 is lifted up and the oil injector starts to inject oil because the external pressure is larger than the pressure in the needle valve spring and the middle-pressure cavity control cavity 32. When the next oil injection stopping signal arrives, the armature loses electromagnetic force and falls, the sealing ball is seated, and the oil injector stops injecting oil, and the cycle is repeated.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and implement it without limiting the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (7)
1. A solenoid valve sink biased dual feed passage fuel injector comprising: the oil nozzle component, the electric controller body component, the regulating valve plate, the sealing valve plate, the oil nozzle tightening cap and the oil sprayer body component. The high-pressure oil liquid enters the oil sprayer body part and then is divided into two independent oil channels to enter the oil nozzle part, the oil channels are two oil inlet channels which are eccentrically arranged, and three sealing cavities are formed by the adjusting valve plate, the electric control body part and the oil nozzle part.
2. The solenoid valve sink bias dual inlet passage fuel injector of claim 1, wherein: the oil nozzle part consists of a needle valve body, a needle valve sleeve, a needle valve spring and a needle valve spring adjusting gasket.
3. The solenoid valve sink bias dual inlet passage fuel injector of claim 1, wherein: the electric control body part consists of a sealing valve seat, a sealing ball, a ball seat, an armature spring, an armature rod, a solenoid valve spring, an electric control body, a solenoid valve spring adjusting pad, a solenoid valve spring seat pad, a butterfly spring and a solenoid valve.
4. The solenoid valve sink bias dual inlet passage fuel injector of claim 1, wherein: the oil sprayer body part comprises a sealing gasket, a plug wire harness, an oil sprayer body and an oil pipe connector.
5. The solenoid valve sink bias dual inlet passage fuel injector of claim 2, wherein: the sealing valve plate is respectively provided with a first oil hole, a second oil hole and a third oil hole, the pressure of oil in the control cavity is controlled through the three oil holes, and then the needle valve is controlled to lift to control injection, and the functions of oil inlet, oil outlet and auxiliary oil return are respectively realized.
6. The solenoid valve sink bias dual inlet passage fuel injector of claim 1, wherein: the electric control body part is characterized in that the oil return cavity is a low-pressure oil cavity, the cavity formed by the needle valve sleeve and the adjusting valve plate is a medium-pressure oil cavity control cavity, and the cavity connected with the oil inlet pipe is a high-pressure oil cavity. The upper end of the third oil hole is connected with the oil inlet, and the lower end of the third oil hole is connected with the medium-pressure oil cavity control cavity. The upper ends of the first oil hole and the second oil hole are connected with a low-pressure oil cavity, the lower end of the first oil hole is connected with a high-pressure oil cavity, and the lower end of the second oil hole is connected with a medium-pressure oil cavity control cavity.
7. The solenoid valve sink bias dual inlet passage fuel injector of claim 1, wherein: the parts are connected with the oil nozzle tightening cap through the locating pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310082494.1A CN116181537B (en) | 2023-02-08 | 2023-02-08 | Electromagnetic valve sinking offset double-oil-inlet-channel oil sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310082494.1A CN116181537B (en) | 2023-02-08 | 2023-02-08 | Electromagnetic valve sinking offset double-oil-inlet-channel oil sprayer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116181537A true CN116181537A (en) | 2023-05-30 |
| CN116181537B CN116181537B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310082494.1A Active CN116181537B (en) | 2023-02-08 | 2023-02-08 | Electromagnetic valve sinking offset double-oil-inlet-channel oil sprayer |
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| Country | Link |
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| CN (1) | CN116181537B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1164283A2 (en) * | 2000-06-15 | 2001-12-19 | Toyota Jidosha Kabushiki Kaisha | A fuel injection valve |
| WO2008058799A1 (en) * | 2006-11-16 | 2008-05-22 | Robert Bosch Gmbh | Fuel injector |
| CN103764994A (en) * | 2011-08-31 | 2014-04-30 | 卡特彼勒公司 | Dual fuel injector with hydraulic lock seal |
| CN105952559A (en) * | 2016-05-23 | 2016-09-21 | 中国第汽车股份有限公司无锡油泵油嘴研究所 | Double-oil-circuit electronic-controlled oil injector |
| CN112437836A (en) * | 2018-07-20 | 2021-03-02 | 卡特彼勒公司 | Dual outlet check liquid fuel injector for dual fuel system |
-
2023
- 2023-02-08 CN CN202310082494.1A patent/CN116181537B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1164283A2 (en) * | 2000-06-15 | 2001-12-19 | Toyota Jidosha Kabushiki Kaisha | A fuel injection valve |
| WO2008058799A1 (en) * | 2006-11-16 | 2008-05-22 | Robert Bosch Gmbh | Fuel injector |
| CN103764994A (en) * | 2011-08-31 | 2014-04-30 | 卡特彼勒公司 | Dual fuel injector with hydraulic lock seal |
| CN105952559A (en) * | 2016-05-23 | 2016-09-21 | 中国第汽车股份有限公司无锡油泵油嘴研究所 | Double-oil-circuit electronic-controlled oil injector |
| CN112437836A (en) * | 2018-07-20 | 2021-03-02 | 卡特彼勒公司 | Dual outlet check liquid fuel injector for dual fuel system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116181537B (en) | 2024-01-23 |
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