CN202081932U - Pressure adjusting system of supercharged engine crankcase of automobile - Google Patents
Pressure adjusting system of supercharged engine crankcase of automobile Download PDFInfo
- Publication number
- CN202081932U CN202081932U CN2011201307201U CN201120130720U CN202081932U CN 202081932 U CN202081932 U CN 202081932U CN 2011201307201 U CN2011201307201 U CN 2011201307201U CN 201120130720 U CN201120130720 U CN 201120130720U CN 202081932 U CN202081932 U CN 202081932U
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- crankcase
- way valve
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- oil
- supercharged engine
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Abstract
The utility model discloses a pressure adjusting system of a supercharged engine crankcase of an automobile, comprising a two-stage separating mechanism, two gas inlet and outlet channels and an oil return pipeline. The pressure adjusting system is characterized in that the pressure of the crankcase is more accurately adjusted according to the breathing requirement of the crankcase in different working conditions, so that an engine can work normally, oil-gas separated products can be effectively controlled, the ventilation effect of the crankcase is enhanced, the working efficiency of the engine is improved, and the combusted oil amount and the carbon emission amount are effectively reduced. The pressure adjusting system is applicable to a gas inlet system of a combustion chamber of the supercharged engine and is used for adjusting the pressure of the crankcase.
Description
Technical field
The utility model relates to a kind of regulating mechanism of automotive engine component, specifically a kind of automobile supercharged engine crankcase pressure regulating system.
Background technique
Motor constantly forms bent axle waste gas in operation process, these waste gas can not directly be discharged in the atmosphere, thus need appropriate design one cover automobile crane case pressure regulating system, to realize automobile low emission, low cost movement.
The crankcase pressure regulating system generally is made up of mixed gas separation and respiratory regulation two-part, and it act as: the machine oil in the waste gas in the crankcase is separated, reduced the oil level that enters the firing chamber.According to different operating modes and piston air leak amount situation, by the Respiratory Regulation crankcase pressure, guarantee that motor normally moves, enter fresh air, prevent that machine oil is aging.Present most motor car engine product adopts single Oil-gas Separation mechanism, and it is not thorough to exist Oil-gas Separation, is difficult to reach the deficiency of emission regulation demands.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of supercharged engine crankcase pressure regulating system, it comprises forces air inlet, force to give vent to anger, the oil gas hybrid separation with separates machine oil oil return four parts afterwards.Oil gas hybrid separation system can carry out multi-stage separation to crankcase oil gas, and the Oil-gas Separation product control effectively, at the different operating mode of supercharged engine, designed the difference trend of crankcase mixed gas, finish the function of crankcase pressure adjustment more accurately, strengthen the crankcase ventilation effect simultaneously, promoted engine operation efficient, effectively reduced amount of fuel and carbon emission.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is:
A kind of supercharged engine crankcase pressure regulating system comprises the valve mechanism cover, crankcase, the oil sump that are connected in one, and the mixed gas interface of intake manifold and the mixed gas interface of valve mechanism cover join,
In the pipeline that air-strainer, pressurized machine, intercooler are connected into successively, the outlet side of intercooler joins through the suction port of electronic throttle and intake manifold;
With after one-way valve is connected, one is terminated at the pipeline between air-strainer and pressurized machine to two interfaces of first three-way valve respectively, and the air outlet of the other end and intake manifold joins; The 3rd interface of first three-way valve and the suction port of crankcase are connected;
With after one-way valve is connected, one is terminated at the pipeline between air-strainer and pressurized machine to two interfaces of second three-way valve respectively, and the other end is connected to the suction port of intake manifold; The 3rd interface of second three-way valve and the air outlet that is connected to crankcase after PVC valve, deaerator are connected.
Described deaerator also is connected with oil sump, and deaerator is higher than the oil sump setting.
Owing to adopted above-mentioned technological scheme, the utility model compared with prior art, obtained technological progress is: (1) the utility model has two crankcases to force to give vent to anger path and outlet pipe, cooperate with different pressure air inlets, the route of giving vent to anger according to engine operating condition is different, finish bent axle pressure regulatory function more accurately, to guarantee the normal operation of motor under different operating modes;
(2) the utility model return line has been avoided the machine oil backward flow problem;
(3) adopt two-stage or multistage Oil-gas Separation, Oil-gas Separation is more thorough, reduces the burning machine oil mass, reduces carbon emission.
Article (4) two, force air inlet and the design of forcing outlet pipe to increase the ventilation effect of crankcase, the more effective machine oil of having avoided is aging, has reduced the replacing frequency of crankcase machine oil.
As fully visible, the utility model has been realized reducing the vehicle operating cost, reducing the purpose of discharging.The utility model is applicable in the gas handling system of supercharged engine firing chamber, is used to regulate crankcase pressure.
The utility model is described in further detail below in conjunction with Figure of description and specific embodiment.
Description of drawings
Fig. 1 is the connecting relation schematic representation between member in the crankcase pressure regulating system of the present utility model;
Fig. 2 is crankcase pressure regulating system brief principle figure.
Among the figure: 1-air-strainer, 2-pressurized machine, 3-intercooler, 4-electronic throttle, 5-intake manifold, 6-valve mechanism cover, 7-crankcase, 8-oil sump, 9-one-way valve, 101, the 102-three-way valve, 11-PCV valve, 12-deaerator, 13-firing chamber; Arrow is represented the trend of oil, gas among the figure.
Embodiment
Embodiment
A kind of supercharged engine crankcase pressure regulating system, as shown in Figure 1.
This supercharged engine crankcase pressure regulating system comprises the valve mechanism cover 6, crankcase 7, the oil sump 8 that are connected in one.
The mixed gas interface of intake manifold 5 and the mixed gas interface of valve mechanism cover 6 join.
Air-strainer 1, pressurized machine 2, intercooler 3 are connected successively and are formed pipeline, and the outlet side of intercooler 3 joins through the suction port of electronic throttle 4 with intake manifold 5.
101 two interfaces of first three-way valve are respectively with after one-way valve 9 is connected, and one is terminated at the pipeline of 2 of air-strainer 1 and pressurized machines, and the air outlet of the other end and intake manifold 5 joins; The 3rd interface of first three-way valve 101 and the suction port of crankcase 7 are connected.
102 two interfaces of second three-way valve are respectively with after one-way valve 9 is connected, and one is terminated at the pipeline of 2 of air-strainer 1 and pressurized machines, and the other end is connected to the suction port of intake manifold 5; The 3rd interface of second three-way valve 102 and the air outlet that is connected to crankcase 7 after PVC valve 11, deaerator 12 are connected.
Deaerator 12 also is connected with the oil sump 8 that is lower than its setting.
Valve mechanism cover 6 in the present embodiment and deaerator 12 are respectively the one-level separating mechanism and are the secondary separating mechanism.
The fuel-air mixture of crankcase 7 carries out first separation through valve mechanism cover 6 earlier; filter large particle machine oil and impurity in the mixed gas; reduce when entering the machine oil content of firing chamber 13, reduced separation requirement, carry out secondary separation through deaerator 12 again deaerator 12.
This supercharged engine crankcase pressure regulating system comprises the fairway of five different trends, is respectively to force outlet pipe A, B, and return line C forces air inlet pipeline D, E.As shown in Figure 2, present embodiment is according to the different operating modes of supercharged engine, the mixed gas of crankcase 7 move towards difference:
When engine operating condition is low speed and load, pressurized machine 2 does not form boost pressure, intake manifold 5 pressure are minimum, mixed gas after deaerator 12 separates enters intake manifold 5 through PCV valve 11, first three-way valve 101, one-way valve 9, enter firing chamber 13 and participate in burning, this section pipeline is forces outlet pipe A; Simultaneously, the fresh air of drawing behind the air-strainer 1 enters crankcase 7 through one-way valve 9, second three-way valve 102, and this circuits is forces air inlet pipeline D, has in time replenished fresh air like this in the crankcase, has kept the pressure balance in the crankcase.
When motor is sub load and high load working condition, pressurized machine 2 is gone into boost pressure, this moment, pressurized machine 2 forefront pressures were minimum, gas after the separation enters pressurized machine 2 front ends through PCV valve 11, first three-way valve 101, one-way valve 9, after intercooler 3, electronic throttle 4 enter intake manifold 5, enter firing chamber 13 and participate in burning, this section pipeline is forces outlet pipe B; Simultaneously, intake manifold 5 is gone back the extension fresh air and is entered crankcase 7 through one-way valve 9, second three-way valve 102, is to force air inlet pipeline E, has increased rate of air circulation; Machine oil after passing through one-level separating mechanism valve mechanism cover 6 and secondary separating mechanism deaerator 12 separating, directly enter oil sump 8, owing to have certain height poor at 12 and the oil sump 8 of deaerator, therefore the machine oil of separating flows directly into oil sump 8, and backflow phenomenon can not take place, more can not enter in the firing chamber 13, therefore effectively reduce the carbon discharge capacity, also can save an one-way valve herein.The flow direction of gas under the different operating modes of one-way valve 9 restrictions on each path, valve body specification difference; Explanation above comprehensive as can be seen, the utility model can be according to Under Different Work Condition of Engine, force air inlet pipeline and two covers to force outlet pipe to make by two covers and keep the fresh air circulation in the crankcase, this patent has two to force inlet air pathway D, E, take different pressure air inlet routes according to the engine operating condition difference, cooperate with give vent to anger path A, B of two pressures, finish crankcase pressure regulatory function more accurately, guarantee that motor normally moves.Also increased the ventilation effect in the crankcase, constantly entered fresh air, prevented that machine oil is aging.
Force air inlet pipeline D, E independently to arrange in the present embodiment, make things convenient for the integral arrangement of crankcase ventilation system.
According to the restriction of exhaust index, can select fit according to actual conditions, be to adopt single-stage to separate or or multi-stage separation.
Claims (2)
1. an automobile supercharged engine crankcase pressure regulating system comprises the valve mechanism cover, crankcase, the oil sump that are connected in one,
It is characterized in that:
The mixed gas interface of intake manifold and the mixed gas interface of valve mechanism cover join;
In the pipeline that air-strainer, pressurized machine, intercooler are connected into successively, the outlet side of intercooler joins through the suction port of electronic throttle and intake manifold;
With after one-way valve is connected, one is terminated at the pipeline between air-strainer and pressurized machine to two interfaces of first three-way valve respectively, and the air outlet of the other end and intake manifold joins; The 3rd interface of first three-way valve and the suction port of crankcase are connected;
With after one-way valve is connected, one is terminated at the pipeline between air-strainer and pressurized machine to two interfaces of second three-way valve respectively, and the other end is connected to the suction port of intake manifold; The 3rd interface of second three-way valve and the air outlet that is connected to crankcase after PVC valve, deaerator are connected.
2. automobile supercharged engine crankcase pressure regulating system as claimed in claim 1,
It is characterized in that:Described deaerator also is connected with oil sump, and deaerator is higher than the oil sump setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201307201U CN202081932U (en) | 2011-04-28 | 2011-04-28 | Pressure adjusting system of supercharged engine crankcase of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201307201U CN202081932U (en) | 2011-04-28 | 2011-04-28 | Pressure adjusting system of supercharged engine crankcase of automobile |
Publications (1)
| Publication Number | Publication Date |
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| CN202081932U true CN202081932U (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201307201U Expired - Fee Related CN202081932U (en) | 2011-04-28 | 2011-04-28 | Pressure adjusting system of supercharged engine crankcase of automobile |
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|---|---|
| CN (1) | CN202081932U (en) |
Cited By (17)
| 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 |
| CN105518260A (en) * | 2013-09-10 | 2016-04-20 | 通用汽车环球科技运作公司 | Crankcase ventilation device for vehicle |
| CN105781675A (en) * | 2014-12-26 | 2016-07-20 | 上海汽车集团股份有限公司 | Crankshaft box ventilation system and method |
| CN106382142A (en) * | 2016-10-21 | 2017-02-08 | 东风商用车有限公司 | Engine local oil anti-emulsification system and using method thereof |
| CN109026276A (en) * | 2018-06-29 | 2018-12-18 | 江苏理工学院 | A kind of engine pressure balance-conditioning system |
| CN109057914A (en) * | 2018-06-29 | 2018-12-21 | 江苏理工学院 | A kind of engine pressure balance system |
| CN109854338A (en) * | 2019-02-27 | 2019-06-07 | 吉利汽车研究院（宁波）有限公司 | Crankshaft ventilating system, turbocharged engine and automobile |
| CN109915231A (en) * | 2019-04-10 | 2019-06-21 | 广西玉柴机器股份有限公司 | Spark ignition type engine with supercharger closed crankcase ventilation system |
| CN110107430A (en) * | 2019-06-11 | 2019-08-09 | 日生能科技(厦门)有限公司 | Reciprocating engine positive pressure imports active bending axle box and blows blow-by system |
| CN110219716A (en) * | 2019-06-28 | 2019-09-10 | 潍柴动力股份有限公司 | A kind of closed cycle respiratory system and engine assembly |
| CN110219715A (en) * | 2019-06-11 | 2019-09-10 | 潍柴动力股份有限公司 | A kind of closed cycle respiratory system and automobile |
| RU2721069C2 (en) * | 2015-06-03 | 2020-05-15 | Ман Трак Унд Бас Аг | Creation of rarefaction in engine crankcase to reduce number of particles |
| 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 |
| CN112360593A (en) * | 2020-11-30 | 2021-02-12 | 广西玉柴机器股份有限公司 | Gas engine ventilation system and control method |
| CN113404593A (en) * | 2020-03-16 | 2021-09-17 | 长城汽车股份有限公司 | Diagnosis method and device |
| CN114320529A (en) * | 2021-12-31 | 2022-04-12 | 中国第一汽车股份有限公司 | Crankcase ventilation system, vehicle and control method of crankcase ventilation system |
| CN114941557A (en) * | 2022-05-09 | 2022-08-26 | 潍柴动力股份有限公司 | Engine connecting pipeline, control method and engine system |
-
2011
- 2011-04-28 CN CN2011201307201U patent/CN202081932U/en not_active Expired - Fee Related
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN105518260A (en) * | 2013-09-10 | 2016-04-20 | 通用汽车环球科技运作公司 | Crankcase ventilation device for vehicle |
| CN105518260B (en) * | 2013-09-10 | 2018-06-08 | 通用汽车环球科技运作公司 | Vehicle crank shaft case ventilation device |
| CN105781675A (en) * | 2014-12-26 | 2016-07-20 | 上海汽车集团股份有限公司 | Crankshaft box ventilation system and method |
| RU2721069C2 (en) * | 2015-06-03 | 2020-05-15 | Ман Трак Унд Бас Аг | Creation of rarefaction in engine crankcase to reduce number of particles |
| CN106382142B (en) * | 2016-10-21 | 2019-04-30 | 东风商用车有限公司 | A kind of engine part machine oil anti-emulsion system and its application method |
| CN106382142A (en) * | 2016-10-21 | 2017-02-08 | 东风商用车有限公司 | Engine local oil anti-emulsification system and using method thereof |
| CN109026276A (en) * | 2018-06-29 | 2018-12-18 | 江苏理工学院 | A kind of engine pressure balance-conditioning system |
| CN109057914A (en) * | 2018-06-29 | 2018-12-21 | 江苏理工学院 | A kind of engine pressure balance system |
| CN109026276B (en) * | 2018-06-29 | 2020-09-15 | 江苏理工学院 | Engine pressure balance adjustment system |
| CN109854338A (en) * | 2019-02-27 | 2019-06-07 | 吉利汽车研究院（宁波）有限公司 | Crankshaft ventilating system, turbocharged engine and automobile |
| CN109854338B (en) * | 2019-02-27 | 2020-09-08 | 吉利汽车研究院（宁波）有限公司 | Crankshaft ventilation system, turbocharged engine and automobile |
| CN109915231B (en) * | 2019-04-10 | 2020-11-10 | 广西玉柴机器股份有限公司 | Closed crankcase ventilation system of spark-ignition supercharged engine |
| CN109915231A (en) * | 2019-04-10 | 2019-06-21 | 广西玉柴机器股份有限公司 | Spark ignition type engine with supercharger closed crankcase ventilation system |
| CN110219715A (en) * | 2019-06-11 | 2019-09-10 | 潍柴动力股份有限公司 | A kind of closed cycle respiratory system and automobile |
| CN110107430A (en) * | 2019-06-11 | 2019-08-09 | 日生能科技(厦门)有限公司 | Reciprocating engine positive pressure imports active bending axle box and blows blow-by system |
| CN110219716B (en) * | 2019-06-28 | 2020-08-21 | 潍柴动力股份有限公司 | Closed circulation respiratory and engine assembly |
| CN110219716A (en) * | 2019-06-28 | 2019-09-10 | 潍柴动力股份有限公司 | A kind of closed cycle respiratory system and engine assembly |
| 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 |
| CN113404593A (en) * | 2020-03-16 | 2021-09-17 | 长城汽车股份有限公司 | Diagnosis method and device |
| CN112360593A (en) * | 2020-11-30 | 2021-02-12 | 广西玉柴机器股份有限公司 | Gas engine ventilation system and control method |
| CN114320529A (en) * | 2021-12-31 | 2022-04-12 | 中国第一汽车股份有限公司 | Crankcase ventilation system, vehicle and control method of crankcase ventilation system |
| CN114941557A (en) * | 2022-05-09 | 2022-08-26 | 潍柴动力股份有限公司 | Engine connecting pipeline, control method and engine system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20170428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |