CN207420652U - A kind of admission cam shaft of in-line four cylinder naturally aspirated engine - Google Patents
A kind of admission cam shaft of in-line four cylinder naturally aspirated engine Download PDFInfo
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- CN207420652U CN207420652U CN201721515309.XU CN201721515309U CN207420652U CN 207420652 U CN207420652 U CN 207420652U CN 201721515309 U CN201721515309 U CN 201721515309U CN 207420652 U CN207420652 U CN 207420652U
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Abstract
The utility model is related to a kind of admission cam shafts of in-line four cylinder naturally aspirated engine.It is characterized in that it is made of VVT installations axle journal, four trunnions, 4 groups of 8 cams, signal panels and oil circuit, four trunnions, which are fixed on cylinder block and head bearing shell to rotate, drives 4 groups of 8 cams control valve openings or closing, signal panels collect signal by the difference of magnetic flux, engine ignition is controlled, VVT installation axle journal facing cut oil grooves form the circuit of oil.Four trunnions of the utility model, which are fixed on cylinder block and head bearing shell to rotate, drives 4 groups of 8 cams control valve openings or closing.Signal panels collect signal by the difference of magnetic flux, control engine ignition.
Description
Technical field
The utility model is related to a kind of admission cam shafts of in-line four cylinder discharge capacity 1.5L naturally aspirated 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 existing in the prior art in order to solve the problems, such as, provides a kind of in-line four cylinder discharge capacity 1.5L
The admission cam shaft of naturally aspirated engine can effectively improve the power performance of engine, easy to assembly, meet emission request.
A kind of admission cam shaft of in-line four cylinder discharge capacity 1.5L naturally aspirated engines, it is characterised in that by VVT installation axles
Neck, four trunnions, 4 groups of 8 cams, signal panels and oil circuit composition, four trunnions are fixed on cylinder block and head bearing shell
It rotates and drives 4 groups of 8 cams control valve openings or closing, signal panels collect signal by the difference of magnetic flux, and control is started
Machine is lighted a fire, and VVT installation axle journal facing cut oil grooves form the circuit of oil.
The maximum lift of cam is 8.6mm, and base circle diameter (BCD) is φ 35, and cam angle shared by the breeze way of valve opening side is
28 °, corresponding lift is 0mm-0.38446597mm；Cam angle shared by the active section of valve opening side is 56 °, corresponding lift
For 0.38446597mm-8.6mm；Cam angle shared by the active section of valve-closing side is 56 °, and corresponding lift is 8.6mm-
0.38860195mm；Cam angle shared by the breeze way of valve-closing side is 28 °, and corresponding lift is 0.38860195mm-0mm.
Four trunnions of the utility model, which are fixed on cylinder block and head bearing shell to rotate, drives 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 facing cut
Oil groove formed oil circuit, installation VVT composition variable valve timing system, control engine valve opened in the suitable time or
It closes.
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.
The admission cam shaft of a kind of in-line four cylinder discharge capacity 1.5L naturally aspirated engines as shown in Figure 1, by VVT installation axles
1, four, neck, 4,4 groups of trunnion, 8 cams 2, signal panels 3 and oil circuit composition, four trunnions are fixed on cylinder block and head axis
Watt upper rotate drives 4 groups of 8 cams control valve openings or closing, and the difference that signal panels pass through magnetic flux collects signal, control
Engine ignition, VVT installation axle journal facing cut oil grooves form the circuit of oil.VVT composition variable valve timing system, control are installed
Engine valve is turned on and off in the suitable time.
As shown in Fig. 2, the maximum lift of cam is 8.6mm, base circle diameter (BCD) is φ 35, convex shared by the breeze way of valve opening side
It is 28 ° to take turns corner, and corresponding lift is 0mm-0.38446597mm；Cam angle shared by the active section of valve opening side is 56 °, right
The lift answered is 0.38446597mm-8.6mm；Cam angle shared by the active section of valve-closing side is 56 °, and corresponding lift is
8.6mm-0.38860195mm；Cam angle shared by the breeze way of valve-closing side is 28 °, and corresponding lift is
0.38860195mm-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, square).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
Scope.
Claims (2)
1. a kind of admission cam shaft of in-line four cylinder naturally aspirated engine, it is characterised in that by VVT
Axle journal, four trunnions, 4 groups of 8 cams, signal panels and oil circuit composition, four trunnions are installed and are fixed on cylinder body
It is rotated on cylinder cap bearing shell and drives 4 groups of 8 cams control valve openings or closing, signal panels collect letter by the difference of magnetic flux
Number, engine ignition is controlled, VVT installation axle journal facing cut oil grooves form the circuit of oil.
2. the admission cam shaft of a kind of in-line four cylinder naturally aspirated engine according to claim 1, it is characterised in that convex
The maximum lift of wheel is 8.6mm, and base circle diameter (BCD) is φ 35, and cam angle shared by the breeze way of valve opening side is 28 °, corresponding liter
Journey is 0mm-0.38446597mm；Cam angle shared by the active section of valve opening side is 56 °, and corresponding lift is
0.38446597mm-8.6mm；Cam angle shared by the active section of valve-closing side is 56 °, and corresponding lift is 8.6mm-
0.38860195mm；Cam angle shared by the breeze way of valve-closing side is 28 °, and corresponding lift is 0.38860195mm-0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721515309.XU CN207420652U (en) | 2017-11-14 | 2017-11-14 | A kind of admission cam shaft of in-line four cylinder naturally aspirated engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721515309.XU CN207420652U (en) | 2017-11-14 | 2017-11-14 | A kind of admission cam shaft of in-line four cylinder naturally aspirated engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207420652U true CN207420652U (en) | 2018-05-29 |
Family
ID=62304816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721515309.XU Active CN207420652U (en) | 2017-11-14 | 2017-11-14 | A kind of admission cam shaft of in-line four cylinder naturally aspirated engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207420652U (en) |
-
2017
- 2017-11-14 CN CN201721515309.XU patent/CN207420652U/en active Active
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