CN200955414Y - Cylinder-cover oil-circuit structure of automobile engine - Google Patents
Cylinder-cover oil-circuit structure of automobile engine Download PDFInfo
- Publication number
- CN200955414Y CN200955414Y CN200620093082.XU CN200620093082U CN200955414Y CN 200955414 Y CN200955414 Y CN 200955414Y CN 200620093082 U CN200620093082 U CN 200620093082U CN 200955414 Y CN200955414 Y CN 200955414Y
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- Prior art keywords
- oil
- hydraulic tappet
- valve
- engine
- utility
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Abstract
The utility model discloses an oil line structure for cylinder cover of motor car engine, which comprises an oil-incoming passage, a main oil passage and a camshaft lubricating opening. The technical proposal of the utility model is as below: the main oil passage is provided with a hydraulic tappet. The hydraulic tappet is a shell body with a hollow cavity, and the corresponding positions of the middle of side walls of the shell body are provided respectively with oil inlets and outlets that are communicated with the main oil passage. An oil chamber with a compression spring, a check valve and a plunger piston are arranged upwards along bottom of the closed shell body one by one, and top of the plunger piston is provided with an engine oil outlet. As adopting the hydraulic tappet which is flexible, and the oil pressure provides part of force to the hydraulic tappet to support a rocker, when a valve is heated and swells, part of the engine oil will be discharged from the hydraulic tappet, thus not only ensuring closure of the valve, but also eliminating clearance of the valve. Therefore, the advantages of the cylinder cover oil line are that engine oil with pressure is provided to the hydraulic tappet.
Description
Technical field
The utility model belongs to the motor vehicle gasoline technical field of engines, specifically a kind of cylinder cover of automobile engine oil channel structures.
Background technique
Along with constantly aggravation of automobile product competition, thereby cause automobile production enterprise that the car load new product development is also constantly accelerated.Although face shaping from car body, material and auxiliary equipment all will exert an influence to the performance of Motor Vehicle, but its heart-motor car engine is vital to performances of motor vehicles then, no matter, all can directly influence the performance index of vehicle newly developed from aspects such as supply, price and Performance Match.As everyone knows, the major function of motor car engine cylinder head oil circuit is: be the camshaft lubrication fuel feeding 1..2. parts such as camshaft are played certain cooling action.3. play certain cleaning action.4. antirust.5. set up oil pressure and guarantee valve proper functioning under the state of no gap by component such as hydraulic tappets.At present, the employed tappet of motor car engine: need often to regulate the valve clearance, in reducing operation process, produce noise.(note: the gap for preventing that the valve expanded by heating causes valve-closing sternly not reserved in the engine operation process is called the valve clearance.In the engine running, can produce noise because of this gap .)
Summary of the invention
The purpose of this utility model provides the cylinder cover of automobile engine oil channel structures of band hydraulic tappet in a kind of fuel feeding road.
The purpose of this utility model is achieved in that it includes the oil-feed oil duct, main oil gallery, the camshaft lubrication mouth, it is characterized in that: be distributed with hydraulic tappet on the main oil gallery, the structure of this hydraulic tappet is, the housing of cavity, and the corresponding position at housing sidewall middle part is respectively equipped with the oil inlet and outlet that is connected with main oil gallery, housing bottom along sealing upwards is disposed with high-pressure unit oil pocket, one-way valve, the plunger of being with pressure spring, also is provided with an oil outlet at the top of plunger.
The utility model has the advantages that owing to adopted hydraulic tappet, it is a kind of tappet of flexibility.Oil pressure provides a part of power for hydraulic tappet, supports rocking arm.When the valve expanded by heating, machine oil can gush a part from hydraulic tappet, thereby has guaranteed the sealing of valve, has eliminated the valve clearance simultaneously, reduces noise.So the advantage of cylinder cap oil circuit is the machine oil that band pressure is provided for hydraulic tappet.
The utility model also has advantages such as rational in infrastructure, safe and reliable, long service life.
Description of drawings
Fig. 1 is a stereochemical structure simplified schematic diagram of the present utility model
Fig. 2 is the hydraulic tappet structure for amplifying simplified schematic diagram among Fig. 1
Fig. 3 is that the utility model is at cylinder head mounting point structure diagram
The utility model is described in further detail by example below in conjunction with accompanying drawing; but following example only is the utility model example wherein; the rights protection scope of not representing the utility model and being limited, rights protection scope of the present utility model is as the criterion with claims.
Embodiment
Example 1
Shown in Fig. 1-2, the utility model is an example with four cylinder 1.8T motors, among the figure 1 is the oil-feed oil duct, 2 is main oil gallery, 3 is the camshaft lubrication mouth, be distributed with hydraulic tappet 4 near on the position of camshaft lubrication mouth 3 on the main oil gallery, the structure of this hydraulic tappet 4 is, has an end sealed hollow housing 402, the corresponding position at housing sidewall middle part is respectively equipped with the oil inlet and outlet 403 that is connected with main oil gallery, upwards be disposed with the high-pressure unit oil pocket 406 of band pressure spring along the sealed hollow housing bottom, one-way valve 405 and plunger 401 also are provided with a machine oil from oil outlet 404 at the top of plunger 401.
Working principle: in engine working process, machine oil is through the oil duct 1 cylinder cap main oil gallery 2 of flowing through, then by camshaft lubrication mouth 3, and camshaft lubrication, and by other working surfaces of rotation splash lubrication camshaft; Machine oil flows into hydraulic tappet 4 through main oil gallery 2 by filler opening 403, and by the chamber inflow high-pressure unit oil pocket 406 of plunger 401, high-pressure unit oil pocket storage high-pressure oil upwards straightens the plunger of hydraulic tappet; Machine oil flows out from oil outlet 404, plays necessarily to lubricate distribution device.When the valve expanded by heating, machine oil can be extruded a part from the slit of plunger and shell, thereby shortens tappet length, guarantees the sealing of valve, has eliminated the valve clearance, reduces engine noise.And the machine oil that has pressure supports rocking arm for tappet provides a part of pressure.(Fig. 1 shows that arrow is represented direction of engine oil flow).
Fig. 3 be this structure at cylinder head mounting point structure diagram, 2 for being located at the cylinder cap main oil gallery, 5 is the sprocket wheel chamber, the attachment face of chain gear chamber cover shown in 6, drive chain is worked in the sprocket wheel chamber exactly.7 is the chain greasisng road, and machine oil lubricates whole Transmitted chains thereby flow to camshaft sprocket place chain by it.3 are the lubricated hydraulic fluid port of camshaft bearing, and machine oil is through the oil channel camshaft lubrication, and 4 is the hydraulic tappet mounting hole, and the mounting hole lateral opening communicates with the cylinder cap main oil gallery, is the hydraulic tappet fuel feeding.8 is the cylinder cap upper-end surface.9 is the camshaft bearing, and its effect is the stationary cam axle.
Claims (1)
1, a kind of cylinder cover of automobile engine oil channel structures, it includes the oil-feed oil duct, main oil gallery, the camshaft lubrication mouth is characterized in that: be distributed with hydraulic tappet on the main oil gallery, the structure of this hydraulic tappet is, the housing of cavity, the corresponding position at housing sidewall middle part is respectively equipped with the oil inlet and outlet that is connected with main oil gallery, upwards is disposed with high-pressure unit oil pocket, one-way valve, the plunger of being with pressure spring along the housing bottom that seals, and also is provided with an oil outlet at the top of plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620093082.XU CN200955414Y (en) | 2006-09-05 | 2006-09-05 | Cylinder-cover oil-circuit structure of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620093082.XU CN200955414Y (en) | 2006-09-05 | 2006-09-05 | Cylinder-cover oil-circuit structure of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200955414Y true CN200955414Y (en) | 2007-10-03 |
Family
ID=38773999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200620093082.XU Expired - Lifetime CN200955414Y (en) | 2006-09-05 | 2006-09-05 | Cylinder-cover oil-circuit structure of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200955414Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344024B (en) * | 2008-08-22 | 2010-06-02 | 奇瑞汽车股份有限公司 | Engine with novel oilway |
| CN101435380B (en) * | 2008-12-17 | 2011-05-11 | 奇瑞汽车股份有限公司 | Internal combustion engine cylinder cap for HCCI\SI switch |
-
2006
- 2006-09-05 CN CN200620093082.XU patent/CN200955414Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344024B (en) * | 2008-08-22 | 2010-06-02 | 奇瑞汽车股份有限公司 | Engine with novel oilway |
| CN101435380B (en) * | 2008-12-17 | 2011-05-11 | 奇瑞汽车股份有限公司 | Internal combustion engine cylinder cap for HCCI\SI switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BRILLIANCE AUTO GROUP HOLDING CO., LTD. Free format text: FORMER OWNER: SHENYANG BRILLIANCE JINBEI AUTOMOBILE CO., LTD. Effective date: 20121009 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121009 Address after: 110044 Shenyang, Dadong District, Liaoning, East Street, law office, No. 39 Patentee after: Brilliance Auto Group Holding Co., Ltd. Address before: 110044 Liaoning Province, Shenyang City District Road No. 14 spur Patentee before: Huachen Jinbei Automobile Co., Ltd., Shenyang |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071003 |
|
| EXPY | Termination of patent right or utility model |