CN201381900Y - Valve lift adjusting mechanism - Google Patents
Valve lift adjusting mechanism Download PDFInfo
- Publication number
- CN201381900Y CN201381900Y CN200920010537U CN200920010537U CN201381900Y CN 201381900 Y CN201381900 Y CN 201381900Y CN 200920010537 U CN200920010537 U CN 200920010537U CN 200920010537 U CN200920010537 U CN 200920010537U CN 201381900 Y CN201381900 Y CN 201381900Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve opening
- opening cam
- stepper motor
- valve lift
- 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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- Valve Device For Special Equipments (AREA)
Abstract
The utility model provides a valve lift adjusting mechanism, which is characterized by mainly comprising a rocker, a valve opening cam base, a moving mechanism and a stepper motor. A valve opening cam is mounted on the valve opening cam base through a camshaft; the rocker is inserted between a valve and the valve opening cam; the valve opening cam base is connected with the moving mechanism; and the moving mechanism is connected with the stepper motor. When an engine operates at idle speed, the stepper motor drives the moving mechanism to cause the cam base to move along the rocker, so that the oscillating range of the rocker is changed, and the valve life is changed. The valve lift adjusting mechanism has the advantages that the valve lift can be adjusted in a steeples manner, the constant gap between the valves can be kept, the air input requirements of the engine at low and high speed are effectively controlled, the throttle valve can be eliminated, the air inlet resistance is not changed, the air input quantity can be further improved, and the rotating speed and the power of the engine are increased, so that the effect of increasing the power and reducing the oil consumption is achieved.
Description
Technical field
The utility model relates to the opening device of engine valve.
Background technique
Existing engine air apparatus for door-opening is to use the throttle adjustment air inflow, and its shortcoming is that intake resistance changes along with the variation of closure.
Summary of the invention
The valve adjustments mechanism that provides a kind of intake resistance to change along with the variation of air inflow is provided the purpose of this utility model.
The utility model provides a kind of valve lift adjustment mechanism, it is characterized in that: mainly comprise rocking arm, valve opening cam chair, mobile mechanism and stepper motor, the valve opening cam is contained on the valve opening cam chair by camshaft, between valve and valve opening cam, insert rocking arm, the valve opening cam chair links to each other with mobile mechanism, and mobile mechanism links to each other with stepper motor.When engine idling operation, step motor drive mobile mechanism moves cam chair along rocking arm, but changes the oscillating quantity of rocking arm, thereby changes the lift of valve.
The valve lift adjustment mechanism that the utility model provides, its mobile mechanism is the nut and the leading screw that links to each other with stepper motor in the valve opening cam chair.
The valve lift adjustment mechanism that the utility model provides, its mobile mechanism is the tooth bar and the gear that links to each other with stepper motor under the valve opening cam chair.
The valve lift adjustment mechanism that the utility model provides, its advantage is: can the step-less adjustment valve lift, and keep the valve clearance constant, effectively control motor high and low rotating speed air inlet requirement; Can save closure, intake resistance is constant, can further improve air inflow, increases engine speed and power, reaches the high-power effect of building the reduction oil consumption of family.
Description of drawings
Fig. 1 is the structural representation of valve lift adjustment mechanism;
Fig. 2 is the structural representation (overlooking) of the secondary valve lift adjustment mechanism of nut screw;
Fig. 3 is the structural representation (overlooking) of rack-and-pinion valve lift adjustment mechanism.
Embodiment
The secondary valve lift adjustment mechanism of embodiment's 1 nut screw
The secondary valve lift adjustment mechanism of nut screw, its structure as illustrated in fig. 1 and 2, mainly comprise rocking arm 2, valve opening cam chair 4, mobile mechanism 5 and stepper motor 6, valve opening cam 3 is contained on the valve opening cam chair 4 by camshaft, insert rocking arm 2 at valve 1 and 3 on valve opening cam, the leading screw of mobile mechanism 5 links to each other on the nut that the valve opening cam chair is 4 li and the rocking arm 2, and the leading screw of mobile mechanism 5 links to each other with stepper motor 6.
When engine idling operation, stepper motor 6 drives the leading screw of mobile mechanism 4, by nut cam chair 4 is moved along rocking arm 2, but the oscillating quantity of change rocking arm 2, thus the lift of change valve 1.
Embodiment's 2 rack-and-pinion valve lift adjustment mechanism
The rack-and-pinion valve lift adjustment mechanism, its structure as shown in figs. 1 and 3, mainly comprise rocking arm 2, valve opening cam chair 4, mobile mechanism 5 and stepper motor 6, valve opening cam 3 is contained on the valve opening cam chair 4 by camshaft, insert rocking arm 2 at valve 1 and 3 on valve opening cam, the tooth bar of mobile mechanism 5 is meshed on the gear that the valve opening cam chair is 4 li and the rocking arm 2, and the gear of 4 li mobile mechanisms 5 of valve opening cam chair links to each other with stepper motor.
When engine idling operation, stepper motor 6 drives the gear of mobile mechanism 4, by tooth bar valve opening cam chair 4 and motor 6 are moved along rocking arm 2, but the oscillating quantity of change rocking arm 2, thus the lift of change valve 1.
Claims (3)
1, a kind of valve lift adjustment mechanism, it is characterized in that: mainly comprise rocking arm, valve opening cam chair, mobile mechanism and stepper motor, the valve opening cam is contained on the valve opening cam chair by camshaft, between valve and valve opening cam, insert rocking arm, the valve opening cam chair links to each other with mobile mechanism, and mobile mechanism links to each other with stepper motor.
2, according to the described valve lift adjustment mechanism of claim 1, it is characterized in that: described mobile mechanism is the nut and the leading screw that links to each other with stepper motor in the valve opening cam chair.
3, according to the described valve lift adjustment mechanism of claim 1, it is characterized in that: described mobile mechanism is the tooth bar and the gear that links to each other with stepper motor under the valve opening cam chair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920010537U CN201381900Y (en) | 2009-02-12 | 2009-02-12 | Valve lift adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920010537U CN201381900Y (en) | 2009-02-12 | 2009-02-12 | Valve lift adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201381900Y true CN201381900Y (en) | 2010-01-13 |
Family
ID=41525377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920010537U Expired - Fee Related CN201381900Y (en) | 2009-02-12 | 2009-02-12 | Valve lift adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201381900Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197508A (en) * | 2020-01-06 | 2020-05-26 | 义乌吉利动力总成有限公司 | Continuous variable valve system and automobile |
-
2009
- 2009-02-12 CN CN200920010537U patent/CN201381900Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197508A (en) * | 2020-01-06 | 2020-05-26 | 义乌吉利动力总成有限公司 | Continuous variable valve system and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20100212 |