CN202851101U - Bearing cap of variable valve timing (VVT) engine cam shaft - Google Patents
Bearing cap of variable valve timing (VVT) engine cam shaft Download PDFInfo
- Publication number
- CN202851101U CN202851101U CN2012205643193U CN201220564319U CN202851101U CN 202851101 U CN202851101 U CN 202851101U CN 2012205643193 U CN2012205643193 U CN 2012205643193U CN 201220564319 U CN201220564319 U CN 201220564319U CN 202851101 U CN202851101 U CN 202851101U
- Authority
- CN
- China
- Prior art keywords
- cam shaft
- bearing cap
- oil groove
- exhaust cam
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0476—Camshaft bearings
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a bearing cap of a variable valve timing (VVT) engine cam shaft. A first control oil groove, a second control oil groove and an air exhaust cam shaft lubrication oil groove which are independent from each other are arranged in the bottom face between an air inlet cam shaft bearing hole of the bearing cap and an air exhaust cam shaft bearing hole. The first control oil groove and the second control oil groove both extend to the air inlet cam shaft bearing hole at one side of the bearing cap. The air exhaust cam shaft lubrication oil groove extends to the air exhaust cam shaft bearing hole at the other side of the bearing cap. The bearing cap is simple in structure, light in weight and convenient to machine and manufacture.
Description
Technical field
The utility model relates to the motor car engine field, is specifically related to a kind of VVT engine camshaft bearing cap.
Background technique
In the VVT(Variable Valve Time) in the motor, the lift amount of valve is according to the different load of motor and respective change, thus improve the power performance and the economy performance of motor.In existing VVT motor, because it is very difficult directly to process oil circuit in cylinder head, therefore existing VVT motor is arranged oil circuit by the mode of processing oilhole in camshaft-bearing cap mostly, but the difficulty of processing of processing oilhole is higher in camshaft-bearing cap, and because the layout of oil circuit is so that the complex structure of camshaft-bearing cap, volume is large.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, small volume, and is convenient to the VVT engine camshaft bearing cap of manufacturing.
VVT engine camshaft bearing cap described in the utility model, admission cam shaft bearing hole and the bottom surface between the exhaust cam shaft bearing hole at this bearing cap are provided with separate the first control oil groove, the second control oil groove and exhaust cam shaft oil groove, described first, second control oil groove all extends to the admission cam shaft bearing hole of this bearing cap one side, and described exhaust cam shaft oil groove extends to the exhaust cam shaft bearing hole of this bearing cap opposite side.
Further, be provided with lightening grooves and stiffening rib at described bearing cap.
The beneficial effects of the utility model are: by being used as lubricated and oil circuit control oil groove and the cooperating of cylinder head end face of offering in the bottom surface of bearing cap, in bearing cap, offer oilhole and compare as oil circuit with having now, simplified the structure of bearing cap, reduced volume, thereby alleviated the weight of motor complete machine, greatly reduce simultaneously the manufacturing difficulty, pore, shrinkage cavity defect have reduced manufacture cost when effectively avoiding casting this bearing cap.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is plan view of the present utility model;
Fig. 3 is the structural representation of cylinder head described in the utility model;
Fig. 4 is the oil circuit schematic representation after the utility model and the cylinder head assembling.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1 and Figure 2, admission cam shaft bearing hole 4 and the bottom surface between the exhaust cam shaft bearing hole 5 at this VVT engine camshaft bearing cap are provided with separate the first control oil groove 1, the second control oil groove 2 and exhaust cam shaft oil groove 3, described first, second control oil groove all extends to the admission cam shaft bearing hole 4 of this bearing cap one side, described exhaust cam shaft oil groove 3 extends to the exhaust cam shaft bearing hole 6 of this bearing cap opposite side, is provided with lightening grooves 16 and stiffening rib 14 at described bearing cap.
As shown in Figure 3, Figure 4, above-mentioned bearing cap is by two positioning pin holes 6 and five bolt mounting holes 15 and cylinder head location and installation, in the admission cam shaft bearing hole 4 of this bearing cap, bearing shell 10 is housed, have two oilholes 11,12 with first, second control oil groove corresponding connection on the bearing shell 10, this bearing shell 10 can improve lubrication effect;
Above-mentioned bearing cap is after assembling, on in the bearing cap first control oil groove 1 and the cylinder head first controlled oilhole 7 and is communicated with, machine oil enters the control of first on bearing cap oil groove 1 from the first control oilhole 7 on the cylinder head, and along first control oil groove 1 flow to admission cam shaft bearing hole 4 places, link to each other with the oil duct of admission cam shaft by oilhole 11 corresponding on the bearing shell 10, working oil path final and the air inlet phase device connects again;
On the second control oil groove 2 and cylinder head second controlled oilhole 8 and is communicated with, machine oil enters the control of second on bearing cap oil groove 2 from the second control oilhole 8 on the cylinder head, and along second control oil groove 2 flow to admission cam shaft bearing hole 4 places, link to each other with the oil duct of admission cam shaft by oilhole 12 corresponding on the bearing shell 10, working oil path final and the air inlet phase device connects again;
Exhaust cam shaft oil groove 3 on the above-mentioned bearing cap is communicated with exhaust cam shaft oilhole 9 on the cylinder head, machine oil enters exhaust cam shaft oil groove 3 on the bearing cap from the exhaust cam shaft oilhole 9 on the cylinder head, then pass to exhaust cam shaft bearing hole 5 places, in order to lubricated exhaust cam shaft.
Claims (2)
1. VVT engine camshaft bearing cap, it is characterized in that: admission cam shaft bearing hole (4) and the bottom surface between the exhaust cam shaft bearing hole (5) at this bearing cap are provided with separate the first control oil groove (1), the second control oil groove (2) and exhaust cam shaft oil groove (3), described first, second control oil groove all extends to the admission cam shaft bearing hole of this bearing cap one side, and described exhaust cam shaft oil groove extends to the exhaust cam shaft bearing hole of this bearing cap opposite side.
2. VVT engine camshaft bearing cap according to claim 1 is characterized in that: be provided with lightening grooves (13) and stiffening rib (14) at described bearing cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205643193U CN202851101U (en) | 2012-10-30 | 2012-10-30 | Bearing cap of variable valve timing (VVT) engine cam shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205643193U CN202851101U (en) | 2012-10-30 | 2012-10-30 | Bearing cap of variable valve timing (VVT) engine cam shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851101U true CN202851101U (en) | 2013-04-03 |
Family
ID=47982310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205643193U Expired - Fee Related CN202851101U (en) | 2012-10-30 | 2012-10-30 | Bearing cap of variable valve timing (VVT) engine cam shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851101U (en) |
-
2012
- 2012-10-30 CN CN2012205643193U patent/CN202851101U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130403 Termination date: 20191030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |