CN103075267A - Cylinder cover of automobile engine - Google Patents
Cylinder cover of automobile engine Download PDFInfo
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- CN103075267A CN103075267A CN2012105794465A CN201210579446A CN103075267A CN 103075267 A CN103075267 A CN 103075267A CN 2012105794465 A CN2012105794465 A CN 2012105794465A CN 201210579446 A CN201210579446 A CN 201210579446A CN 103075267 A CN103075267 A CN 103075267A
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- cylinder head
- side back
- back oil
- oil road
- air inlet
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Abstract
The invention relates to a cylinder cover of an automobile engine. The cylinder cover comprises a cylinder cover body and a cylinder cover oil chamber, wherein three air-inlet-side oil return channels are formed on the air inlet side of the cylinder cover body; an air-inlet-side oil return channel inlet at the upper end of each air-inlet-side oil return channel is communicated with the cylinder cover oil chamber; the lower end of each air-inlet-side oil return channel is communicated with a crank case; three air-exhaust-side oil return channels are formed on the air exhaust side of the cylinder cover body; an air-exhaust-side oil return channel inlet at the upper end of each air-exhaust-side oil return channel is communicated with the cylinder cover oil chamber; and the lower end of each air-exhaust-side oil return channel is communicated with the crank case. The cylinder cover of the automobile engine has the advantage of generalization, the crank case can be well ventilated, and the consumption of engine oil can be reduced.
Description
Technical field
The present invention relates to automotive engine component, be specifically related to a kind of cylinder cover of automobile engine.
Background technique
Engine cylinder cap belongs to distribution device, and it mainly is to seal cylinder top, and consists of the firing chamber, and it also plays seal action simultaneously, prevents the engine motor oil seepage, so that engine lubrication is normal.Usually, the side in the cylinder head grease chamber is furnished with back oil road, and its effect is to allow the machine oil of cylinder head grease chamber flow back in the crankcase, and both having guaranteed when motor moves has a certain amount of machine oil in the cylinder head grease chamber, prevents that also the machine oil pasta in the cylinder head grease chamber is too high; Opposite side in the cylinder head grease chamber is furnished with air vent, and its effect is to allow the gas blowby in the crankcase is introduced the cylinder head grease chamber, then gas blowby is sucked the firing chamber again and burns.
In general, engine arrangement tilts to exhaust side, be that exhaust side is positioned at lower, at this moment exhaust side is back oil road, the air inlet side is air vent, and flows back in the crankcase for fear of machine oil from air vent, just need to be at the air vent entrance arranged around baffle plate of cylinder head, thereby so that air cylinder head structure is complicated, increased the casting difficulty of cylinder head.And for supercharged engine, because its delivery temperature is higher, in order to guarantee cooling effect, cooling jacket need to surround air outlet flue, and this is just so that the back oil road entrance of exhaust side is higher, cause machine oil to flow back to crankcase from the back oil road of exhaust side, and then make the oil-collecting of cylinder head grease chamber, and machine oil can flow back to by the air vent of air inlet side crankcase, and the gas blowby flow of the air vent of air inlet side is reduced, thereby affect the engine crank case ventilation performance, and increased the consumption of machine oil.Therefore, need to carry out certain improvement to cylinder head.
Summary of the invention
The object of the present invention is to provide a kind of cylinder cover of automobile engine, it can make crankcase ventilation good, and can reduce the consumption of machine oil.
A kind of cylinder cover of automobile engine of the present invention, comprise cylinder head body and cylinder head grease chamber, air inlet side at described cylinder head body is provided with three air inlet side back oil roads, the air inlet side back oil road entrance of described air inlet side back oil road upper end is communicated with the cylinder head grease chamber, and air inlet side back oil road lower end is communicated with crankcase; Exhaust side at described cylinder head body is provided with three exhaust side back oil roads, and the exhaust side back oil road entrance of described exhaust side back oil road upper end is communicated with the cylinder head grease chamber, and exhaust side back oil road lower end is communicated with crankcase.
The position of described exhaust side back oil road entrance is higher than the bottom surface of cylinder head grease chamber; The position of described air inlet side back oil road entrance is higher than the bottom surface of cylinder head grease chamber but is lower than the position of exhaust side back oil road entrance.
The present invention compared with prior art has the following advantages: because the present invention is identical structural type with the structure of air inlet side back oil road and the structural design of exhaust side back oil road, there are height difference in described oil inlet and oil return road entrance and exhaust side back oil road entrance between the two, machine oil can be by the lower inlet streams oil return drain pan in position when motor moves, gas blowby then can enter the cylinder head grease chamber by the higher entrance in position, like this, when motor is horizontal, air inlet side back oil road is as the drainback passage of machine oil, and the exhaust side back oil road just uses as the blow-by gas passage of crankcase ventilation system; When motor is vertical when putting, the exhaust side back oil road is as the drainback passage of machine oil, air inlet side back oil road just uses as the blow-by gas passage of crankcase ventilation system, so that the performance of ventilating of crankcase is good, the problem of having avoided simultaneously machine oil and gas blowby in the prior art to share passage and having caused the machine oil content in the gas blowby to increase, and then reduced the engine motor oil consumption.Simultaneously, no matter put when motor is horizontal or vertical, the present invention all can make machine oil flow by different separately passages from engine blow-by gas, so that the cylinder head generalization, and need not for horizontal engine or longitudinal mounted engine and research and develop separately cylinder head, saved cost.
Description of drawings
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is along the sectional view of A-A direction among Fig. 1;
The schematic diagram that Fig. 3 is the present invention when 5 ° of horizontal inclinations of motor;
Fig. 4 is the present invention at the schematic diagram that motor is vertical when putting 60 °.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of cylinder cover of automobile engine, comprise cylinder head body 3 and cylinder head grease chamber 4, described cylinder head is provided with a plurality of cylinder head construction bolt holes 5 for installing, and 5 installations are fastened on the engine body top to cylinder head through cylinder head construction bolt hole by bolt; Air inlet side at described cylinder head body 3 is provided with three air inlet side back oil roads 1, and the air inlet side back oil road entrance 2 of described air inlet side back oil road upper end is communicated with cylinder head grease chamber 4, and air inlet side back oil road lower end is communicated with crankcase; Exhaust side at described cylinder head body 3 is provided with three exhaust side back oil roads 7, and the exhaust side back oil road entrance 6 of described exhaust side back oil road upper end is communicated with cylinder head grease chamber 4, and exhaust side back oil road lower end is communicated with crankcase.
The position of described exhaust side back oil road entrance 6 is higher than the bottom surface of cylinder head grease chamber 4; The position of described air inlet side back oil road entrance 2 is higher than the bottom surface of cylinder head grease chamber 4 but is lower than the position of exhaust side back oil road entrance 6.
The present invention is in when design, is the same structure form with the structural design of the back oil road of the structure of the back oil road of air inlet side and exhaust side.Because there are height difference in described oil inlet and oil return road entrance 2 and exhaust side back oil road entrance 6 between the two, machine oil can be by the lower inlet streams oil return drain pan in position in the two when motor moves, and gas blowby then can enter the cylinder head grease chamber by the higher entrance in the two position.
As shown in Figure 3, when engine arrangement mode when being horizontal, motor tilts 5 °.At this moment, the position of the air inlet side back oil road entrance 2 of cylinder head is lower compared to exhaust side back oil road entrance 6, air inlet side back oil road entrance 2 positions are lower than the machine oil liquid level in the cylinder head grease chamber 4, air inlet side back oil road entrance 2 just is immersed in the machine oil, so, machine oil in the cylinder head grease chamber 4 will carry out oil return by the air inlet side back oil road 1 of cylinder head, and air inlet side back oil road 1 is just as the drainback passage of machine oil; And exhaust side back oil road entrance 6 positions of cylinder head are higher at this moment, exhaust side back oil road entrance 6 is not immersed in the machine oil, so, can not carry out oil return by exhaust side back oil road 7 by organic oil, then exhaust side back oil road 7 is just as the blow-by gas passage of crankcase ventilation system.
As shown in Figure 4, when the engine arrangement mode was put for indulging, motor tilted 60 °.At this moment, the position of the exhaust side back oil road entrance 6 of cylinder head is lower compared to air inlet side back oil road entrance 2, exhaust side back oil road entrance 6 positions are lower than the machine oil liquid level in the cylinder head grease chamber 4, exhaust side back oil road entrance 6 just is immersed in the machine oil, so, machine oil in the cylinder head grease chamber 4 will carry out oil return by the exhaust side back oil road 7 of cylinder head, and exhaust side back oil road 7 is just as the drainback passage of machine oil; And air inlet side back oil road entrance 2 positions of cylinder head are higher at this moment, air inlet side back oil road entrance 2 is not immersed in the machine oil, so, can not carry out oil return by air inlet side back oil road 1 by organic oil, then air inlet side back oil road 1 is just as the blow-by gas passage of crankcase ventilation system.
Claims (2)
1. cylinder cover of automobile engine, comprise cylinder head body (3) and cylinder head grease chamber (4), it is characterized in that: the air inlet side at described cylinder head body (3) is provided with three air inlet side back oil roads (1), the air inlet side back oil road entrance (2) of described air inlet side back oil road upper end is communicated with cylinder head grease chamber (4), and air inlet side back oil road lower end is communicated with crankcase; Exhaust side at described cylinder head body (3) is provided with three exhaust side back oil roads (7), and the exhaust side back oil road entrance (6) of described exhaust side back oil road upper end is communicated with cylinder head grease chamber (4), and exhaust side back oil road lower end is communicated with crankcase.
2. a kind of cylinder cover of automobile engine according to claim 1, it is characterized in that: the position of described exhaust side back oil road entrance (6) is higher than the bottom surface of cylinder head grease chamber (4); The position of described air inlet side back oil road entrance (2) is higher than the bottom surface of cylinder head grease chamber (4) but is lower than the position of exhaust side back oil road entrance (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210579446.5A CN103075267B (en) | 2012-12-27 | 2012-12-27 | A kind of cylinder cover of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210579446.5A CN103075267B (en) | 2012-12-27 | 2012-12-27 | A kind of cylinder cover of automobile engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103075267A true CN103075267A (en) | 2013-05-01 |
| CN103075267B CN103075267B (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210579446.5A Active CN103075267B (en) | 2012-12-27 | 2012-12-27 | A kind of cylinder cover of automobile engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN103075267B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806372A (en) * | 2014-01-26 | 2015-07-29 | 广州汽车集团股份有限公司 | Automobile engine air cylinder cover, automobile engine and corresponding automobile |
| CN106321274A (en) * | 2016-08-30 | 2017-01-11 | 重庆长安汽车股份有限公司 | Cylinder cover oil path structure, cylinder cover and engine |
| CN106762188A (en) * | 2015-11-24 | 2017-05-31 | 上海汽车集团股份有限公司 | Vehicle and its engine, cylinder block |
| CN114251185A (en) * | 2020-09-25 | 2022-03-29 | 深圳臻宇新能源动力科技有限公司 | Engine cylinder cover |
| CN114370350A (en) * | 2022-01-04 | 2022-04-19 | 第一拖拉机股份有限公司 | Non-road diesel engine cylinder cover with bilateral ventilation oil return channels |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312427A (en) * | 2000-03-07 | 2001-09-12 | 本田技研工业株式会社 | Oil return structure in engine |
| CN201218143Y (en) * | 2008-07-17 | 2009-04-08 | 安徽江淮汽车股份有限公司 | Cylinder cap of 1.8-2.4L diesel engine |
| CN201486617U (en) * | 2008-07-09 | 2010-05-26 | 福特环球技术公司 | Device with cylinder cover and cylinder body |
| CN102251873A (en) * | 2010-05-17 | 2011-11-23 | 通用汽车环球科技运作公司 | Cylinder head drain and vent |
| JP2011241757A (en) * | 2010-05-18 | 2011-12-01 | Suzuki Motor Corp | Blow-by gas treatment device for engine |
-
2012
- 2012-12-27 CN CN201210579446.5A patent/CN103075267B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312427A (en) * | 2000-03-07 | 2001-09-12 | 本田技研工业株式会社 | Oil return structure in engine |
| CN201486617U (en) * | 2008-07-09 | 2010-05-26 | 福特环球技术公司 | Device with cylinder cover and cylinder body |
| CN201218143Y (en) * | 2008-07-17 | 2009-04-08 | 安徽江淮汽车股份有限公司 | Cylinder cap of 1.8-2.4L diesel engine |
| CN102251873A (en) * | 2010-05-17 | 2011-11-23 | 通用汽车环球科技运作公司 | Cylinder head drain and vent |
| JP2011241757A (en) * | 2010-05-18 | 2011-12-01 | Suzuki Motor Corp | Blow-by gas treatment device for engine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806372A (en) * | 2014-01-26 | 2015-07-29 | 广州汽车集团股份有限公司 | Automobile engine air cylinder cover, automobile engine and corresponding automobile |
| CN106762188A (en) * | 2015-11-24 | 2017-05-31 | 上海汽车集团股份有限公司 | Vehicle and its engine, cylinder block |
| CN106321274A (en) * | 2016-08-30 | 2017-01-11 | 重庆长安汽车股份有限公司 | Cylinder cover oil path structure, cylinder cover and engine |
| CN106321274B (en) * | 2016-08-30 | 2019-03-22 | 重庆长安汽车股份有限公司 | A kind of cylinder head oil channel structures, cylinder head and engine |
| CN114251185A (en) * | 2020-09-25 | 2022-03-29 | 深圳臻宇新能源动力科技有限公司 | Engine cylinder cover |
| CN114370350A (en) * | 2022-01-04 | 2022-04-19 | 第一拖拉机股份有限公司 | Non-road diesel engine cylinder cover with bilateral ventilation oil return channels |
| CN114370350B (en) * | 2022-01-04 | 2022-11-22 | 第一拖拉机股份有限公司 | Non-road diesel engine cylinder cover with double-side ventilation oil return channel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103075267B (en) | 2016-02-03 |
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