CN101684760B - Cylinder cover of automobile engine - Google Patents
Cylinder cover of automobile engine Download PDFInfo
- Publication number
- CN101684760B CN101684760B CN200810070368XA CN200810070368A CN101684760B CN 101684760 B CN101684760 B CN 101684760B CN 200810070368X A CN200810070368X A CN 200810070368XA CN 200810070368 A CN200810070368 A CN 200810070368A CN 101684760 B CN101684760 B CN 101684760B
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- cam shaft
- hole
- mounting hole
- shaft mounting
- vvt
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Abstract
The invention discloses a cylinder cover of an automobile engine, comprising a cylinder cover body (1), an inlet valve guide (2), an exhaust valve guide (3), a spark plug hole (4), an admission cam shaft mounting hole (5) and an exhaust cam shaft mounting hole (6). An admission cam shaft supported hole (9) is arranged on the cylinder cover body (1) at one end of the extension line of the hole center connecting line of the admission cam shaft mounting hole (5); a VVT chamber (7) is arranged next to the outside of the admission cam shaft supported hole (9); an exhaust cam shaft supported hole (10) is arranged on the cylinder cover body (1) at one end of the extension line of the hole center connecting line of the exhaust cam shaft mounting hole (6); a transmission gear chamber (8) is arranged next to the outside of the exhaust cam shaft supported hole (10); and the VVT chamber (7) and the transmission gear chamber (8) are arranged at the same end of the cylinder cover body (1). The invention can effectively prevent lubricating oil at the position of a VVT transmission organ from easily leaking on the cylinder cover of the engine.
Description
Technical field
The invention belongs to technical field of automobile engine, specifically, relate to a kind of engine cylinder cover that is used on the automobile.
Background technique
" VVT " is the english abbreviation of variable valve timing system of engine, and this system can regulate engine valve timing continuously.When motor by low speed during to high-speed transitions, electronic computer is automatically pressed to machine oil the little turbine in the admission cam shaft actuation gear, like this, under the effect of pressure, little turbine just rotates a certain angle with respect to gear hub, thereby make camshaft in certain scope forward or to right rotation, thereby change moment of IO Intake Valve Opens, reach the continuous adjusting purpose of valve timing.For realizing that above purpose just need increase VVT device and corresponding driving mechanism in motor, on motor, adopted following driving mechanism and arrangement (as Fig. 4 usually, shown in Figure 5): 1, between engine crankshaft and admission cam shaft and exhaust cam shaft, timing chain guide plate 22 is set, admission cam shaft and exhaust cam shaft are provided with a pair of timing sprocket 21 with end, the timing chain guide plate is provided with chain tensioning device 23, utilize the guiding of timing chain guide plate 22 that timing sprocket 21 and engine crankshaft 24 are coupled together by chain 25, the sprocket wheel that is positioned on the admission cam shaft is fixedlyed connected with vvt mechanism, passes to admission cam shaft by vvt mechanism thereby reach again after the power that engine crankshaft is exported is passed to the vvt mechanism adjustment earlier.2, the motor between engine crankshaft and admission cam shaft and the exhaust cam shaft is provided with belt tightener 28, admission cam shaft and exhaust cam shaft are provided with a pair of Timing Belt wheel 27 with end, utilize the tension of the tight device 28 of belt that Timing Belt wheel 27 is coupled together with engine crankshaft 29 by belt 30.The driving mechanism of above-mentioned two kinds of kinds of drive all is arranged on the end outside of cylinder cap, because for cooperating the especially size of vvt mechanism of cam crank, no matter for being that the sprocket wheel or the diameter of belt pulley all are conditional in the dual mode, their diameter can not be too small, minimum should be greater than the diameter of vvt mechanism.Under the situation that the diameter of sprocket wheel or belt pulley is restricted, for avoiding in the above-mentioned driving mechanism between the sprocket wheel separately or interfering between the belt pulley, will require so to connect between the intake and exhaust cam axle of sprocket wheel or gear sufficiently long centre distance is arranged, for the less situation of the volume of engine cylinder cover own, centre distance is subjected to the restriction of the volume of cylinder cap own again between the intake and exhaust cam axle, and centre distance can not be long.So just probably cause between two sprocket wheels or between two belt pulleys when centre distance all is restricted between sprocket wheel or belt pulley and exhaust cam shaft as mentioned above and interfere.In conjunction with Fig. 4, Fig. 5 as can be seen, described structure has taken than large space, injects lubricating oil but also need whole driving mechanism be enclosed in the inside by the machine oil cover.The machine oil cover is by being bolted on the cylinder cap.Be subjected to the inevitable machine oil cover of the bigger influence of driving mechanism volume also can take bigger space, and behind the motor long-play, occur the situation of leakage of oil easily at the junction plane of machine oil cover and cylinder cap.
Summary of the invention
For solving above technical problem, the object of the present invention is to provide a kind of motor integral arrangement compactness that makes, can effectively prevent the engine cylinder cover that VVT driving mechanism place lubricating oil is revealed easily.
Technological scheme of the present invention is as follows:
A kind of automobile engine cylinder head, comprise cylinder cap body, intake valve conduit, exhaust valve guide, spark-plug hole, admission cam shaft mounting hole, exhaust cam shaft mounting hole, on the longitudinal center line of described cylinder cap body, be evenly equipped with spark-plug hole, be evenly equipped with the admission cam shaft mounting hole on the same parallel lines of this spark-plug hole one side, be evenly equipped with the exhaust cam shaft mounting hole on the same parallel lines of opposite side; On described admission cam shaft mounting hole both sides is the intake valve conduit, described exhaust cam shaft mounting hole both sides are exhaust valve guide, it is characterized in that: the cylinder cap body of elongation line one end of described admission cam shaft mounting hole hole heart line is provided with the admission cam shaft supported hole, is furnished with the VVT chamber near this admission cam shaft supported hole outside; The cylinder cap body of described exhaust cam shaft mounting hole hole heart line elongation line one end is provided with the exhaust cam shaft supported hole, arrange the driving gear chamber near this exhaust cam shaft supported hole outside, described VVT chamber and driving gear chamber are positioned at the same end of cylinder cap body.
As mentioned above in this programme owing to make driving gear chamber and VVT chamber and cylinder cap form integrative-structure, the employing of effectively having avoided background technique to mention can produce the situation that lubricating oil is revealed by the sealing of machine oil cover again at cylinder cap arranged outside driving mechanism, and adopt integrative-structure to make the layout of whole cylinder cap and VVT driving mechanism compact more, reduced whole volume.Reduce corresponding component simultaneously, saved cost.
Owing to increased the chamber that is used to hold vvt mechanism at cylinder cap one end as described above, and VVT is a dress with the extended end of original admission cam shaft, the purpose that the admission cam shaft supported hole is set between VVT chamber and admission cam shaft mounting hole is to support the part that prolongation is come out, otherwise because extended end itself will bear certain weight, and the long words that are in vacant state probably in use deform, and can influence the working life of admission cam shaft.Equally, between driving gear chamber and exhaust cam shaft mounting hole, be provided with the exhaust cam shaft supported hole, serve the same role with aforementioned.
Be provided with auxiliary hole on the cylinder cap sidewall that forms VVT chamber and driving gear chamber, the hole heart that wherein is positioned at the auxiliary hole of described VVT chamber is on the heart line elongation line of described admission cam shaft mounting hole hole; The hole heart that is positioned at the auxiliary hole of described driving gear chamber is on the heart line elongation line of exhaust cam shaft mounting hole hole.
The purpose that is provided with auxiliary hole on the cylinder cap sidewall that forms VVT chamber and driving gear chamber is to make things convenient for the processing of admission cam shaft mounting hole, exhaust cam shaft mounting hole and associated components, adds only cutter to be passed auxiliary hole man-hour and prolong axially to advance and just can finish processing to each admission cam shaft mounting hole, exhaust cam shaft mounting hole.
Beneficial effect: the present invention makes motor integral arrangement compactness, can effectively prevent the engine cylinder cover that VVT driving mechanism place lubricating oil is revealed easily.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the right elevation of Fig. 1;
Fig. 4 is first kind of VVT driving mechanism structural representation in the background technique;
Fig. 5 is second kind of VVT driving mechanism structural representation in the background technique;
Fig. 6 loads onto the structural representation of VVT driving mechanism for the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
Embodiment, as Fig. 1, Fig. 2, a kind of automobile engine cylinder head shown in Figure 3, comprise cylinder cap body 1, intake valve conduit 2, exhaust valve guide 3, spark-plug hole 4, admission cam shaft mounting hole 5, exhaust cam shaft mounting hole 6, on the longitudinal center line of described cylinder cap body 1, be evenly equipped with spark-plug hole 4, be evenly equipped with admission cam shaft mounting hole 5 on the same parallel lines of these spark-plug hole 4 one sides, be evenly equipped with exhaust cam shaft mounting hole 6 on the same parallel lines of opposite side; On described admission cam shaft mounting hole 5 both sides is intake valve conduit 2, described exhaust cam shaft mounting hole 6 both sides are exhaust valve guide 3, the cylinder cap body 1 of elongation line one end of described admission cam shaft mounting hole 5 hole heart lines is provided with admission cam shaft supported hole 9, is furnished with VVT chamber 7 near these admission cam shaft supported hole 9 outsides; The cylinder cap body 1 of described exhaust cam shaft mounting hole 6 hole heart line elongation line one ends is provided with exhaust cam shaft supported hole 10, arrange driving gear chamber 8 near these exhaust cam shaft supported hole 10 outsides, described VVT chamber 7 and driving gear chamber 8 are positioned at the same end of cylinder cap body 1.
Be provided with auxiliary hole 11 on common cylinder cap body 1 sidewall of described VVT chamber 7 and driving gear chamber 8, the hole heart that wherein is positioned at the auxiliary hole 11 of described VVT chamber 7 is on the described admission cam shaft mounting hole 5 hole heart line elongation lines; The hole heart that is positioned at the auxiliary hole 11 of described driving gear chamber 8 is on the exhaust cam shaft mounting hole 6 hole heart line elongation lines.
The mechanism that comprises the VVT driving mechanism among the present invention is as shown in Figure 6: vvt mechanism 12 directly is loaded on admission cam shaft 13 extended ends, make vvt mechanism 12 be positioned at VVT chamber 7, also be provided with intake cam shaft transmission gear 14 on the admission cam shaft 13 near vvt mechanism 12, at exhaust cam shaft 15 extended end fixed conveyor gears 16, this driving gear 16 is positioned at driving gear chamber 8, just admission cam shaft 13, exhaust cam shaft 15 effectively can be coupled together by two driving gears.The machine oil that in driving gear chamber 8 and VVT chamber 7, has pair gear drive to be lubricated.
Claims (2)
1. automobile engine cylinder head, comprise cylinder cap body (1), intake valve conduit (2), exhaust valve guide (3), spark-plug hole (4), admission cam shaft mounting hole (5), exhaust cam shaft mounting hole (6), on the longitudinal center line of described cylinder cap body (1), be evenly equipped with spark-plug hole (4), be evenly equipped with admission cam shaft mounting hole (5) on the same parallel lines of these spark-plug hole (4) one sides, be evenly equipped with exhaust cam shaft mounting hole (6) on the same parallel lines of opposite side; On described admission cam shaft mounting hole (5) both sides is intake valve conduit (2), described exhaust cam shaft mounting hole (6) both sides are exhaust valve guide (3), it is characterized in that: the cylinder cap body (1) of elongation line one end of described admission cam shaft mounting hole (5) hole heart line is provided with admission cam shaft supported hole (9), is furnished with VVT chamber (7) near this admission cam shaft supported hole (9) outside; The cylinder cap body (1) of described exhaust cam shaft mounting hole (6) hole heart line elongation line one end is provided with exhaust cam shaft supported hole (10), arrange driving gear chamber (8) near this exhaust cam shaft supported hole (10) outside, described VVT chamber (7) and driving gear chamber (8) are positioned at the same end of cylinder cap body (1).
2. according to the described a kind of automobile engine cylinder head of claim 1, it is characterized in that: be provided with auxiliary hole (11) on common cylinder cap body (1) sidewall of described VVT chamber (7) and driving gear chamber (8), the hole heart that wherein is positioned at the auxiliary hole (11) of described VVT chamber (7) is on the heart line elongation line of described admission cam shaft mounting hole (5) hole; The hole heart that is positioned at the auxiliary hole (11) of described driving gear chamber (8) is on the heart line elongation line of exhaust cam shaft mounting hole (6) hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810070368XA CN101684760B (en) | 2008-09-24 | 2008-09-24 | Cylinder cover of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810070368XA CN101684760B (en) | 2008-09-24 | 2008-09-24 | Cylinder cover of automobile engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101684760A CN101684760A (en) | 2010-03-31 |
| CN101684760B true CN101684760B (en) | 2011-12-14 |
Family
ID=42048086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810070368XA Expired - Fee Related CN101684760B (en) | 2008-09-24 | 2008-09-24 | Cylinder cover of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101684760B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181485A (en) * | 1990-03-29 | 1993-01-26 | Mazda Motor Corporation | Valve driving mechanism for double overhead camshaft engine |
| EP0915234A2 (en) * | 1997-11-07 | 1999-05-12 | Toyota Jidosha Kabushiki Kaisha | Valve timing changing apparatus for internal combustion engine |
| CN101220758A (en) * | 2008-01-28 | 2008-07-16 | 力帆实业(集团)股份有限公司 | VVT gear transmission mechanism of vehicle engine |
| CN201269143Y (en) * | 2008-09-25 | 2009-07-08 | 力帆实业(集团)股份有限公司 | VVT engine cylinder head of vehicle |
-
2008
- 2008-09-24 CN CN200810070368XA patent/CN101684760B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181485A (en) * | 1990-03-29 | 1993-01-26 | Mazda Motor Corporation | Valve driving mechanism for double overhead camshaft engine |
| EP0915234A2 (en) * | 1997-11-07 | 1999-05-12 | Toyota Jidosha Kabushiki Kaisha | Valve timing changing apparatus for internal combustion engine |
| CN101220758A (en) * | 2008-01-28 | 2008-07-16 | 力帆实业(集团)股份有限公司 | VVT gear transmission mechanism of vehicle engine |
| CN201269143Y (en) * | 2008-09-25 | 2009-07-08 | 力帆实业(集团)股份有限公司 | VVT engine cylinder head of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101684760A (en) | 2010-03-31 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100331 Assignee: Chongqing Lifan Automobile Engine Co., Ltd. Assignor: Lifan Industry (Group) Co., Ltd. Contract record no.: 2012500000074 Denomination of invention: Cylinder cover of automobile engine Granted publication date: 20111214 License type: Exclusive License Record date: 20120725 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20190924 |