CN207526541U - A kind of exhaust cam shaft of in-line four cylinder turbocharged engine - Google Patents
A kind of exhaust cam shaft of in-line four cylinder turbocharged engine Download PDFInfo
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- CN207526541U CN207526541U CN201721516690.1U CN201721516690U CN207526541U CN 207526541 U CN207526541 U CN 207526541U CN 201721516690 U CN201721516690 U CN 201721516690U CN 207526541 U CN207526541 U CN 207526541U
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Abstract
The utility model is related to a kind of exhaust cam shafts of in-line four cylinder turbocharged engine.At present, engine is towards high dynamic property, low burn oil consumption and meets the camshaft of one of more stringent emission regulation trend development, the primary drive part as engine and is more and more paid attention in the effect for improving power performance, reducing friction and meeting emission request etc..The utility model is made of VVT installations axle journal, five trunnions, 4 groups of 8 cams, signal panels and oil circuit, five trunnions are fixed on rotation on cylinder block and head bearing shell and drive 4 groups of 8 cams control valve openings or closing, signal panels collect signal by the difference of magnetic flux, control engine ignition, VVT installation axle journal side face drilling oilholes form the circuit of oil, and tail end forms flat recess as driver slot driving vacuum pump operating.
Description
Technical field
The utility model is related to a kind of exhaust cam shafts of in-line four cylinder discharge capacity 1.8L turbocharged engines.
Background technology
Variable valve timing system (VVT) carries out the phase of engine cam by the control of outfit and execution system
It adjusts, so that valve opening, the time closed change with the variation of engine speed, because it can improve volumetric efficiency,
And increase engine power, therefore as the standard configuration of Modern Engine.
At present, engine towards high dynamic property, low burn oil consumption and meets more stringent emission regulation trend development,
The camshaft of one of primary drive part as engine is improving power performance, reduces friction and is meeting emission request etc.
Effect more and more paid attention to.
Utility model content
The purpose of this utility model is of the existing technology in order to solve the problems, such as, provides a kind of in-line four cylinder turbocharging
The exhaust cam shaft of engine can effectively improve the power performance of engine, easy to assembly, meet emission request.
A kind of exhaust cam shaft of in-line four cylinder discharge capacity 1.8L turbocharged engines, it is characterised in that by VVT installation axles
Neck, five trunnions, 4 groups of 8 cams, signal panels and oil circuit are formed, and five trunnions are fixed on cylinder block and head bearing shell
Upper rotation drives 4 groups of 8 cams control valve openings or closing, and signal panels collect signal, control hair by the difference of magnetic flux
Motivation is lighted a fire, and VVT installation axle journal side face drilling oilholes form the circuit of oil, and tail end forms flat recess and drives vacuum pump as driver slot
Operating.
The maximum lift h of the cam is 8.62mm, base radius R17.5mm, and valve opening side breeze way is corresponding
Corner section is 97 ° -122 °, and corresponding lift is 0mm-0.37mm；The corresponding corner section in valve opening side positive acceleration portion
It it is 122 ° -135 °, corresponding lift is 0.37mm-2.18447mm；The corresponding corner section in valve opening side negative acceleration portion is
135 ° -180 °, corresponding lift is 2.18447mm-8.62mm；The corresponding corner section in valve-closing side negative acceleration portion is
180 ° -226 °, corresponding lift is 8.62mm-2.24656mm；The corresponding corner section in valve-closing side positive acceleration portion is
226 ° -239 °, corresponding lift is 2.24656mm-0.41mm；The corresponding corner section of valve-closing side breeze way for 239 °-
266 °, corresponding lift is 0.41mm-0mm.
Five trunnions of the utility model are fixed on rotation on cylinder block and head bearing shell and drive 4 groups of 8 cams control gas
Door is turned on and off.Signal panels collect signal by the difference of magnetic flux, control engine ignition.VVT installs axle journal side face drilling
Oilhole formed oil circuit, installation VVT composition variable valve timing system, control engine valve opened in the suitable time or
It closes.Tail end forms flat recess as driver slot driving vacuum pump operating.The power performance of engine, assembling side can be effectively improved
Just, meet emission request.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the utility model cam work stroke schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
A kind of exhaust cam shaft of in-line four cylinder discharge capacity 1.8L turbocharged engines as shown in Figure 1, it is characterised in that
It is made of 8 cams 2 of VVT installation 4,4 groups of the trunnions of axle journal 1, five, signal panels and oil circuit, five trunnion installations are fixed
Rotation drives 4 groups of 8 cams control valve openings or closing on cylinder block and head bearing shell, and signal panels are received by the difference of magnetic flux
Collect signal, control engine ignition, VVT installation axle journal side face drilling oilholes form the circuit of oil, and tail end forms flat recess 3 as drive
Dynamic slot driving vacuum pump operating.
As shown in Fig. 2, the maximum lift h of the cam is 8.62mm, base radius R17.5mm, valve opening side is delayed
It is 97 ° -122 ° to rush the corresponding corner section of section, and corresponding lift is 0mm-0.37mm；Valve opening side positive acceleration portion corresponds to
Corner section for 122 ° -135 °, corresponding lift is 0.37mm-2.18447mm；Valve opening side negative acceleration portion is corresponding
Corner section is 135 ° -180 °, and corresponding lift is 2.18447mm-8.62mm；Corresponding turn of valve-closing side negative acceleration portion
Angle range is 180 ° -226 °, and corresponding lift is 8.62mm-2.24656mm；The corresponding corner in valve-closing side positive acceleration portion
Section is 226 ° -239 °, and corresponding lift is 2.24656mm-0.41mm；Breeze way corresponding corner section in valve-closing side is
239 ° -266 °, corresponding lift is 0.41mm-0mm.
Listed above is only specific embodiment of the utility model, and the utility model is not limited to above embodiment,
The shape in pond and the shape of steel pipe can also there are many deformation (such as oval, rectangular).Those of ordinary skill in the art
All deformations that directly can be exported or associate from the utility model disclosure, are considered as the protection of the utility model
Range.
Claims (2)
1. a kind of exhaust cam shaft of in-line four cylinder turbocharged engine, it is characterised in that by VVT installations axle journal, five main shafts
Neck, 4 groups of 8 cams, signal panels and oil circuit are formed, and five trunnions are fixed on rotation on cylinder block and head bearing shell and drive 4
8 cam control valve openings of group or closing, signal panels collect signal by the difference of magnetic flux, control engine ignition, VVT
Installation axle journal side face drilling oilhole forms the circuit of oil, and tail end forms flat recess as driver slot driving vacuum pump operating.
A kind of 2. exhaust cam shaft of in-line four cylinder turbocharged engine according to claim 1, it is characterised in that institute
The maximum lift h for stating cam is 8.62mm, and base radius R17.5mm, breeze way corresponding corner section in valve opening side is
97 ° -122 °, corresponding lift is 0mm-0.37mm；The corresponding corner section in valve opening side positive acceleration portion for 122 °-
135 °, corresponding lift is 0.37mm-2.18447mm；The corresponding corner section in valve opening side negative acceleration portion for 135 °-
180 °, corresponding lift is 2.18447mm-8.62mm；The corresponding corner section in valve-closing side negative acceleration portion for 180 °-
226 °, corresponding lift is 8.62mm-2.24656mm；The corresponding corner section in valve-closing side positive acceleration portion for 226 °-
239 °, corresponding lift is 2.24656mm-0.41mm；Breeze way corresponding corner section in valve-closing side is 239 ° -266 °,
Corresponding lift is 0.41mm-0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721516690.1U CN207526541U (en) | 2017-11-14 | 2017-11-14 | A kind of exhaust cam shaft of in-line four cylinder turbocharged engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721516690.1U CN207526541U (en) | 2017-11-14 | 2017-11-14 | A kind of exhaust cam shaft of in-line four cylinder turbocharged engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526541U true CN207526541U (en) | 2018-06-22 |
Family
ID=62582280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721516690.1U Active CN207526541U (en) | 2017-11-14 | 2017-11-14 | A kind of exhaust cam shaft of in-line four cylinder turbocharged engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529213A (en) * | 2019-09-24 | 2019-12-03 | 深圳臻宇新能源动力科技有限公司 | Exhaust cam and engine with it |
-
2017
- 2017-11-14 CN CN201721516690.1U patent/CN207526541U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529213A (en) * | 2019-09-24 | 2019-12-03 | 深圳臻宇新能源动力科技有限公司 | Exhaust cam and engine with it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Exhaust camshaft of in-line four cylinder turbocharged engine Effective date of registration: 20220328 Granted publication date: 20180622 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Huzhou Daixi Xiaowei franchise sub branch Pledgor: ZHEJIANG JUNRONG AUTO PARTS CO.,LTD. Registration number: Y2022330000412 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |