CN202991189U - Pressure balancing system for supercharged petrol engine crankcase - Google Patents
Pressure balancing system for supercharged petrol engine crankcase Download PDFInfo
- Publication number
- CN202991189U CN202991189U CN 201220721332 CN201220721332U CN202991189U CN 202991189 U CN202991189 U CN 202991189U CN 201220721332 CN201220721332 CN 201220721332 CN 201220721332 U CN201220721332 U CN 201220721332U CN 202991189 U CN202991189 U CN 202991189U
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- crankcase
- pipeline
- way valve
- tube
- main pipe
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Abstract
The utility model provides a pressure balancing system for a supercharged petrol engine crankcase to solve the problems in the prior art that oil in the crankcase can be suctioned into an intake manifold regulator chamber to deposit when the supercharged petrol engine is under the working condition of low speed and low load (or a supercharger is not working), the waste gas enters the crankcase, and the like. The pressure balancing system for the supercharged petrol engine crankcase comprises a main pipeline, an accessory pipeline I, an accessory pipeline II, a branch pipeline I and a branch pipeline II, wherein one end of the main pipeline is connected with a crankcase cover, and the other end is connected with the supercharger; one end of the accessory pipeline I is connected with the main pipeline in the position of the front end of a check valve I of the main pipeline, and the other end is connected with the intake manifold regulator chamber; and one end of the accessory pipeline II is connected with the main pipeline in the position between the check valve I and a check valve II of the main pipeline. The pressure balancing system for the supercharged petrol engine crankcase has the advantages that pressure inside the engine crankcase is guaranteed to be balanced under different working conditions, and the crankcase is to be timely supplemented with filtered fresh air to avoid burning oil and high fuel consumption. Furthermore, the pressure balancing system has compact structure and good reliability.
Description
Technical field
The utility model relates to a kind of gasoline supercharging engine crankcase pressure balancing technique, specially refers to a kind of gasoline supercharging engine crankcase pressure balance sysmte.
Background technique
In recent years, along with the development of automobile industry, market is increasing to the demand of the turbo supercharging gasoline engine of low oil consumption, high-output power.And gasoline supercharging engine degree of vacuum in suction tude when low speed, little load (or pressurized machine is not worked) working state is very large, cause the inside and outside pressure imbalance of crankcase, the crankcase inner engine oil can be inhaled into intake manifold pressure stabilizing cavity deposition, thereby causes the invalid loss of machine oil.Simultaneously, the waste gas that enters crankcase can make that machine oil is rotten, the body corrosion.If waste gas is directly entered atmosphere, must cause high oil consumption, high pollution discharging.Obviously, the prior art gasoline supercharging engine exists the crankcase inner engine oil when low speed, little load (or pressurized machine is not worked) working state can be inhaled into intake manifold pressure stabilizing cavity deposition, and waste gas enters the problems such as crankcase.
Summary of the invention
Can be inhaled into intake manifold pressure stabilizing cavity deposition for solving the crankcase inner engine oil that the prior art gasoline supercharging engine exists when low speed, little load (or the pressurized machine is not worked) working state, waste gas enters the problems such as crankcase, the utility model proposes a kind of gasoline supercharging engine crankcase pressure balance sysmte.The utility model gasoline supercharging engine crankcase pressure balance sysmte comprises main pipe, attached pipeline I, attached pipeline II, branch pipe(tube) I and branch pipe(tube) II, one end of main pipe connects crankcase cover, the other end connects pressurized machine, and be provided with in the middle the one-way valve I, and the rear end of one-way valve I is connected with air-strainer by the one-way valve II; One end of attached pipeline I is connected with main pipe at the front end of main pipe one-way valve I, and the other end connects the intake manifold pressure stabilizing cavity, and is provided with in the middle the one-way valve III; One end of attached pipeline II is connected with main pipe between main pipe one-way valve I and one-way valve II, an end of the other end connecting branch road I and branch pipe(tube) II, and be provided with in the middle the one-way valve IV; The other end of branch pipe(tube) I connects Valve EGR; The other end of branch pipe(tube) II connects the intake manifold pressure stabilizing cavity, and is provided with in the middle the one-way valve V.
Further, the caliber of main pipe, attached pipeline and the branch pipe(tube) of the utility model gasoline supercharging engine crankcase pressure balance sysmte is different, and the size of its every section caliber and the flow velocity of this air in pipeline and pressure are complementary.
The useful technique effect of the utility model gasoline supercharging engine crankcase pressure balance sysmte is can be at the fresh air that guarantees under different operating modes after engine crankcase internal pressure balance is also in time replenished filtration to crankcase, avoid burn oil and high oil consumption, and, compact structure, good reliability.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model gasoline supercharging engine crankcase pressure balance sysmte.
Below in conjunction with the drawings and specific embodiments, the utility model gasoline supercharging engine crankcase pressure balance sysmte is further described.
Embodiment
Accompanying drawing 1 is the structural representation of the utility model gasoline supercharging engine crankcase pressure balance sysmte, and in figure, 1 is main pipe, 2 is attached pipeline I, 3 is attached pipeline II, and 4 is the branch pipe(tube) I, and 5 is the branch pipe(tube) II, 6 is the one-way valve I, 7 is the one-way valve II, and 8 is the one-way valve III, and 9 is the one-way valve IV, 10 is the one-way valve V, and the arrow in figure represents gas flow.As seen from the figure, the utility model gasoline supercharging engine crankcase pressure balance sysmte comprises main pipe 1, attached pipeline I 2, attached pipeline II 3, branch pipe(tube) I 4 and branch pipe(tube) II 5, one end of main pipe 1 connects crankcase cover, the other end connects pressurized machine, and be provided with in the middle one-way valve I 6, and the rear end of one-way valve I 6 is connected with air-strainer by one-way valve II 7; One end of attached pipeline I 3 is connected with main pipe at the front end of main pipe one-way valve I, and the other end connects the intake manifold pressure stabilizing cavity, and is provided with in the middle one-way valve III 8; One end of attached pipeline II 4 is connected with main pipe 1 between main pipe one-way valve I 6 and one-way valve II 7, an end of the other end connecting branch road I 4 and branch pipe(tube) II 5, and be provided with in the middle one-way valve IV 9; The other end of branch pipe(tube) I 4 connects Valve EGR; The other end of branch pipe(tube) II 5 connects the intake manifold pressure stabilizing cavity, and is provided with in the middle one-way valve V 10.For guaranteeing pressure and the flow velocity balance of crankcase and each pipeline, the caliber of main pipe, attached pipeline and the branch pipe(tube) of the utility model gasoline supercharging engine crankcase pressure balance sysmte is different, and the size of its every section caliber and the flow velocity of this air in pipeline and pressure are complementary.
The utility model gasoline supercharging engine crankcase pressure balance sysmte at motor different operating state, all can guarantee engine crankcase internal pressure balance in the gasoline supercharging engine running, and timely fresh air after the additional filtration of crankcase:
When motor is in idling or pressurized machine and does not work, crankcase pressure〉pressure before pressurized machine〉air-distributor pressure, the one-way valve I is oppositely closed, and crank case gases flow to the intake manifold pressure stabilizing cavity through the one-way valve III, and participates in burning.Concrete glide path is: crankcase-1A-2A-one-way valve III-2B-intake manifold pressure stabilizing cavity.
When engine supercharger is worked, pressure＜crankcase pressure before pressurized machine＜suction pressure, the one-way valve III is oppositely closed, and crank case gases pipeline before the one-way valve I enters pressurized machine participates in circulating and burning.Concrete glide path is: crankcase-1A-one-way valve I-1B-1C-pressurized machine.
According to the pressure difference of crankcase and suction tude, fresh air flows to cylinder head cover through the one-way valve II, keeps the balance of crankcase pressure.Concrete glide path is: air filter-one-way valve II-crankcase.
Different according to Valve EGR and suction press, the oil gas in canister is through Valve EGR-branch pipe(tube) I-branch pipe(tube) II-one-way valve V-intake manifold pressure stabilizing cavity (this moment, the one-way valve IV was oppositely closed) and participate in burning; Perhaps through Valve EGR-branch pipe(tube) I-3B-one-way valve IV-3A-1B-1C-pressurized machine (this moment, the one-way valve V was oppositely closed), introduce recirculation and burning.
Obviously, the useful technique effect of the utility model gasoline supercharging engine crankcase pressure balance sysmte is can be at the fresh air that guarantees under different operating modes after engine crankcase internal pressure balance is also in time replenished filtration to crankcase, avoid burn oil and high oil consumption, and, compact structure, good reliability.
Claims (2)
1. gasoline supercharging engine crankcase pressure balance sysmte, it is characterized in that: this balance sysmte comprises main pipe, attached pipeline I, attached pipeline II, branch pipe(tube) I and branch pipe(tube) II, one end of main pipe connects crankcase cover, the other end connects pressurized machine, and be provided with in the middle the one-way valve I, and the rear end of one-way valve I is connected with air-strainer by the one-way valve II; One end of attached pipeline I is connected with main pipe at the front end of main pipe one-way valve I, and the other end connects the intake manifold pressure stabilizing cavity, and is provided with in the middle the one-way valve III; One end of attached pipeline II is connected with main pipe between main pipe one-way valve I and one-way valve II, an end of the other end connecting branch road I and branch pipe(tube) II, and be provided with in the middle the one-way valve IV; The other end of branch pipe(tube) I connects Valve EGR; The other end of branch pipe(tube) II connects the intake manifold pressure stabilizing cavity, and is provided with in the middle the one-way valve V.
2. gasoline supercharging engine crankcase pressure balance sysmte according to claim 1, it is characterized in that: the caliber of main pipe, attached pipeline and branch pipe(tube) is different, and the size of its every section caliber and the flow velocity of this air in pipeline and pressure are complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220721332 CN202991189U (en) | 2012-12-24 | 2012-12-24 | Pressure balancing system for supercharged petrol engine crankcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220721332 CN202991189U (en) | 2012-12-24 | 2012-12-24 | Pressure balancing system for supercharged petrol engine crankcase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991189U true CN202991189U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220721332 Expired - Lifetime CN202991189U (en) | 2012-12-24 | 2012-12-24 | Pressure balancing system for supercharged petrol engine crankcase |
Country Status (1)
| Country | Link |
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| CN (1) | CN202991189U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362597A (en) * | 2013-06-27 | 2013-10-23 | 奇瑞汽车股份有限公司 | Crankcase ventilation system of supercharged gasoline engine and work method of crankcase ventilation system |
| CN108952961A (en) * | 2018-06-29 | 2018-12-07 | 联合汽车电子有限公司 | Internal combustion engine hydrocarbon emission leakage monitoring structure and its monitoring method |
| CN112282891A (en) * | 2019-07-25 | 2021-01-29 | 长城汽车股份有限公司 | Crankcase ventilation control method and crankcase ventilation system |
-
2012
- 2012-12-24 CN CN 201220721332 patent/CN202991189U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362597A (en) * | 2013-06-27 | 2013-10-23 | 奇瑞汽车股份有限公司 | Crankcase ventilation system of supercharged gasoline engine and work method of crankcase ventilation system |
| CN103362597B (en) * | 2013-06-27 | 2016-01-13 | 奇瑞汽车股份有限公司 | A kind of gasoline supercharging engine crankcase ventilation system and method for work thereof |
| CN108952961A (en) * | 2018-06-29 | 2018-12-07 | 联合汽车电子有限公司 | Internal combustion engine hydrocarbon emission leakage monitoring structure and its monitoring method |
| CN108952961B (en) * | 2018-06-29 | 2019-11-22 | 联合汽车电子有限公司 | Internal combustion engine hydrocarbon emission leakage monitoring structure and its monitoring method |
| CN112282891A (en) * | 2019-07-25 | 2021-01-29 | 长城汽车股份有限公司 | Crankcase ventilation control method and crankcase ventilation system |
| CN112282891B (en) * | 2019-07-25 | 2022-02-22 | 长城汽车股份有限公司 | Crankcase ventilation control method and crankcase ventilation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: MIANYANG XINHUA ENGINE CO.,LTD. Assignor: Mianyang Xinchen Engine Co.,Ltd. Contract record no.: 2014510000132 Denomination of utility model: Pressure balancing system for supercharged petrol engine crankcase Granted publication date: 20130612 License type: Exclusive License Record date: 20140822 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |