CN103075267B - A kind of cylinder cover of automobile engine - Google Patents
A kind of cylinder cover of automobile engine Download PDFInfo
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- CN103075267B CN103075267B CN201210579446.5A CN201210579446A CN103075267B CN 103075267 B CN103075267 B CN 103075267B CN 201210579446 A CN201210579446 A CN 201210579446A CN 103075267 B CN103075267 B CN 103075267B
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- side back
- cylinder head
- back oil
- oil road
- air inlet
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Abstract
The present invention relates to a kind of cylinder cover of automobile engine, comprise cylinder head body and cylinder head grease chamber, three air inlet side back oil roads are provided with in the air inlet side of described cylinder head body, the air inlet side back oil road entrance of described air inlet side back oil road upper end is communicated with cylinder head grease chamber, and air inlet side back oil road lower end is communicated with crankcase; Be provided with three exhaust side back oil roads at the exhaust side of described cylinder head body, the exhaust side back oil road entrance of described exhaust side back oil road upper end is communicated with cylinder head grease chamber, and exhaust side back oil road lower end is communicated with crankcase.The present invention can make crankcase ventilation good, and can reduce the consumption of machine oil, has unitized advantage.<!--1-->
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 is mainly used for closed cylinder top, and forms firing chamber, and it also plays seal action simultaneously, prevents engine oil seepage, to make engine lubrication normal.Usually, be furnished with back oil road in the side of cylinder head grease chamber, its effect allows the machine oil of cylinder head grease chamber flow back in crankcase, both ensured there is a certain amount of machine oil in cylinder head grease chamber, and also prevented the machine oil pasta in cylinder head grease chamber too high when motor runs; Be furnished with air vent at the opposite side of cylinder head grease chamber, its effect is the gas blowby introducing cylinder head grease chamber allowed in crankcase, then gas blowby is sucked again firing chamber and burns.
In general, engine arrangement tilts to exhaust side, namely exhaust side is positioned at lower, at this moment exhaust side is back oil road, air inlet side is air vent, and flows back in crankcase in order to avoid machine oil from air vent, just needs to arrange baffle plate at the air vent inlet ambient of cylinder head, thus make air cylinder head structure complicated, add the casting difficulty of cylinder head.And for supercharged engine, because its delivery temperature is higher, in order to ensure cooling effect, cooling jacket needs air outlet flue to surround, and this just makes the back oil road entrance of exhaust side higher, cause machine oil cannot 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 crankcase by the air vent of air inlet side, and the gas blowby flow of the air vent of air inlet side is reduced, thus affect engine crank case ventilation performance, and add 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, three air inlet side back oil roads are provided with in the air inlet side of described cylinder head body, the air inlet side back oil road entrance of described air inlet side back oil road upper end is communicated with cylinder head grease chamber, and air inlet side back oil road lower end is communicated with crankcase; Be provided with three exhaust side back oil roads at the exhaust side of described cylinder head body, the exhaust side back oil road entrance of described exhaust side back oil road upper end is communicated with 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 higher than cylinder head grease chamber bottom surface but lower than the position of exhaust side back oil road entrance.
The present invention compared with prior art has the following advantages: be identical structural type by the structure of air inlet side back oil road with the structural design of exhaust side back oil road due to the present invention, therebetween there is height difference in described oil inlet and oil return road entrance and exhaust side back oil road entrance, when motor runs, machine oil flows back to oil sump by the entrance that position is lower, gas blowby then enters cylinder head grease chamber by the entrance that position is higher, like this, when motor is horizontal, air inlet side back oil road is as the drainback passage of machine oil, exhaust side back oil road just uses as the blow-by gas passage of crankcase ventilation system, when motor is longitudinal, 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, make the performance of ventilating of crankcase good, avoid machine oil and gas blowby in prior art share a passage and cause the problem that the machine oil content in gas blowby increases simultaneously, and then reduce engine oil consumption.Simultaneously, no matter when motor is horizontal or longitudinal, the present invention all can make machine oil be flowed by passages different separately from engine blow-by gas, makes cylinder head generalization, and without the need to researching and developing separately cylinder head for horizontal engine or longitudinal mounted engine, saved cost.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the sectional view along A-A direction in Fig. 1;
Fig. 3 is the schematic diagram of the present invention when the horizontal inclination of motor 5 °;
Fig. 4 is the schematic diagram of the present invention when the longitudinal inclination of motor 60 °.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
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 multiple cylinder head construction bolt hole 5 for installing, and by bolt, through cylinder head construction bolt hole 5, installation is fastened on engine body top to cylinder head; Be provided with three air inlet side back oil roads 1 in the air inlet side of described cylinder head body 3, 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; Be provided with three exhaust side back oil roads 7 at the exhaust side of described cylinder head body 3, 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 higher than cylinder head grease chamber 4 bottom surface but lower than the position of exhaust side back oil road entrance 6.
The structural design of the structure of the back oil road of air inlet side and the back oil road of exhaust side, when designing, is same structure form by the present invention.Because described oil inlet and oil return road entrance 2 and exhaust side back oil road entrance 6 exist height difference therebetween, when motor runs, machine oil flows back to oil sump by the entrance that position in the two is lower, and gas blowby then enters cylinder head grease chamber by the entrance that the two position is higher.
As shown in Figure 3, when engine arrangement mode is horizontal, engine 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 position is lower than the machine oil liquid level in cylinder head grease chamber 4, air inlet side back oil road entrance 2 is just immersed in machine oil, so, machine oil in 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 now exhaust side back oil road entrance 6 position of cylinder head is higher, exhaust side back oil road entrance 6 is not immersed in 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 engine arrangement mode is longitudinal, engine tilts 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 position is lower than the machine oil liquid level in cylinder head grease chamber 4, exhaust side back oil road entrance 6 is just immersed in machine oil, so, machine oil in 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 now air inlet side back oil road entrance 2 position of cylinder head is higher, air inlet side back oil road entrance 2 is not immersed in 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 (1)
1. a cylinder cover of automobile engine, comprise cylinder head body (3) and cylinder head grease chamber (4), it is characterized in that: be provided with three air inlet side back oil roads (1) in the air inlet side of described cylinder head body (3), 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; Be provided with three exhaust side back oil roads (7) at the exhaust side of described cylinder head body (3), 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) higher than cylinder head grease chamber (4) bottom surface but 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 CN103075267A (en) | 2013-05-01 |
| CN103075267B true CN103075267B (en) | 2016-02-03 |
Family
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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) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806372B (en) * | 2014-01-26 | 2017-11-07 | 广州汽车集团股份有限公司 | A kind of cylinder cover of automobile engine, 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 |
| 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 |
| 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 |
Citations (4)
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5459500B2 (en) * | 2010-05-18 | 2014-04-02 | スズキ株式会社 | Engine blow-by gas processing equipment |
-
2012
- 2012-12-27 CN CN201210579446.5A patent/CN103075267B/en active Active
Patent Citations (4)
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103075267A (en) | 2013-05-01 |
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