CN203570378U - Valve mechanism with adjustable stroke - Google Patents
Valve mechanism with adjustable stroke Download PDFInfo
- Publication number
- CN203570378U CN203570378U CN201320688907.2U CN201320688907U CN203570378U CN 203570378 U CN203570378 U CN 203570378U CN 201320688907 U CN201320688907 U CN 201320688907U CN 203570378 U CN203570378 U CN 203570378U
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- China
- Prior art keywords
- valve
- stroke
- rocker
- rocking arm
- cam
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Abstract
The utility model discloses a valve mechanism with adjustable stroke. The valve mechanism with adjustable stroke comprises a cam shaft and an air valve, wherein an ejecting-pushing part making contact with a cam of the cam shaft is arranged on the air valve, and a wedge-shaped slider is arranged between the cam and the ejecting-pushing part; the other end of the wedge-shaped slider is provided with a control end slider and a rocker, the control end slider is placed in a sliding way fixed to the rocker, and the wedge-shaped slider and the control end slider are connected through a rotating shaft; one end of the rocker is provided with a rocker fixing shaft and the other end of the rocker is provided with a power mechanism used for adjusting the inclination angle of the rocker. The valve mechanism with adjustable stroke can achieve stepless adjustment of the stroke of the air valve, and therefore the working efficiency of an engine is effectively improved; meanwhile, waste gas is effectively prevented from returning to a gas inlet channel, and the service life of the engine is prolonged.
Description
Technical field
The utility model relates to technical field of engines, specifically discloses the adjustable valve mechanism of a kind of stroke.
Background technique
In the process of moving, during low speed and load, the little output power of the low moment of torsion of the needed rotating speed of automobile is little for automobile; And when high speed large load operation, the large output power of the high moment of torsion of needed rotating speed is large; The stroke of the valve of prior art is fixed, and uses same large valve stroke when high speed and low speed.Motor best efficiency only appears in extremely narrow speed range, causes energy waste component wear.If valve stroke is adjustable, motor best efficiency is existing by sending in extremely wide scope.Effectively fuel saving, improves power.Also have the multicylinder engines such as present 6 cylinder 8 cylinders, no matter large load or little load are all worked simultaneously, cause the very large waste of power fuel, when little load, can temporarily stop just energy fuel saving of unnecessary cylinder operation, suppose to complete with oil-break, the function of holding one's breath of this cylinder can be tied down the cylinder of other normal work, and it is exactly necessary at this moment removing holding one's breath of unnecessary cylinder.If valve stroke can be transferred to Chang Kai and normally closed, so just can remove holding one's breath of unnecessary cylinder.If need unnecessary cylinder to work together with normal working cylinder, only need to this cylinder valve stroke return to normal consistent.
Model utility content
The purpose of this utility model is: for the problem in above-mentioned conventional engines field, provide a kind of stroke adjustable valve mechanism, for the adjusting of the stroke to valve, increase the delivery efficiency of motor, improve working life.For the too strong multicylinder engine of power, the technical program cylinder working that can break, fuel saving, also can answer cylinder working, recovers power.
To achieve these goals, the technical solution adopted in the utility model is:
The valve mechanism that stroke is adjustable, comprises camshaft and valve, is provided with the yoke frame contacting with the cam of camshaft on valve, is provided with a wedge block between described cam and yoke frame; Wedge block one end is provided with control end slide block and rocking arm, and control end slide block is placed on and is fixed in the other slideway of rocking arm, and wedge block is connected with the rotating shaft in control end slide block by the connecting rod of end; On rocking arm, be also respectively arranged with rocking arm stationary axle and the power mechanism for adjusting rock arm inclination angle.
Preferably, the long arm end of described rocking arm and galianconism end are connected with respectively described power mechanism, and long arm end and galianconism end are according to the spacing power mechanism of joined vehicle spatial depiction choosing dress dynamic Control.
Preferably, described power mechanism is formed by eccentric wheel, connecting rod, stepper motor combination.
Owing to having adopted technique scheme, the beneficial effects of the utility model are:
The utility model is the adjustable valve mechanism of a kind of stroke, can realize the stepless adjustable of valve stroke, when the high rotating speed of automobile travels, valve stroke can be tuned up, and the air entering is more, and output power is larger; When the automobile slow-speed of revolution is travelled, the stroke of valve can be turned down, to obtain required moment of torsion and power, make motor all can obtain maximum usefulness in high and low rotating speed.And waste gas is difficult for returning intake duct and produces carbon distribution, extended life-span of motor.For multicylinder engines such as 6 cylinder 8 cylinders, when little load, temporarily stop unnecessary cylinder operation and remove holding one's breath of unnecessary cylinder.The utility model can be realized valve stroke can be transferred to Chang Kai and normally closed, so just can remove at any time holding one's breath of unnecessary cylinder.If need unnecessary cylinder to work together with normal working cylinder, only need to allow this cylinder valve stroke return to unanimously.
Accompanying drawing explanation
Fig. 1 is the view of priming stroke of the present utility model.
Fig. 2 is the working state schematic representation of the utility model under priming stroke.
Fig. 3 is the working state schematic representation of the utility model after stroke alteration.
Mark in figure: 1-camshaft, 2-wedge block, 3-valve, 4-air flue, 5-firing chamber, 6-piston, 7-control end slide block, 8-slideway, 9-rocking arm stationary axle, 10-rocking arm, 11-yoke frame, 12-rotating shaft, 13-power mechanism, 14-cam.
Embodiment
With reference to Fig. 1-3, the valve mechanism that a kind of stroke is adjustable, comprises camshaft 1 and valve 3, is provided with the yoke frame 11 contacting with the cam 14 of camshaft 1 on valve 3, is provided with a wedge block 2 between described cam 14 and yoke frame 11; Wedge block 2 one end are provided with control end slide block 7 and rocking arm 10, and control end slide block 7 is placed in the slideway 8 being fixed on rocking arm 10, and wedge block 2 is connected by rotating shaft 12 with control end slide block 7; Rocking arm 10 one end are provided with rocking arm stationary axle 9, and the other end is provided with the power mechanism 13 for adjusting rock arm 10 inclination angles.Described power mechanism 13 forms for eccentric wheel, connecting rod, stepper motor combination, according to physical condition cam drive mechanism, worm and gear driving mechanism or other assembly power drive units.Those skilled in the art can change the angle of inclination of rocking arm 10 in conjunction with prior art by described power mechanism, therefore the concrete structure of power mechanism 13 is not done to detailed repeating at this.
Described rocking arm 10 is the upper end that inverted "L" shaped, described rocking arm 10 stationary axle are arranged at rocking arm 10, and the long arm end of rocking arm 10 and galianconism end select one end that described power mechanism 13 is set according to real space condition.
Set when rocking arm 13 inclination angles are when constant, rocking arm 13 is parallel with valve 3, and the rotation of camshaft 1 drives wedge block 2 to move downward, and pressing down of while wedge block 2, opens valve 3.
When rocking arm 10 is during with certain inclination angle, be rocking arm 10 during for heeling condition, when camshaft 1 rotates, wedge block 2 has the movement in substantially horizontal when moving downward, the stroke of now wedge block 2 vertical direction motions will reduce to some extent, thereby changes the stroke of valve 3.Angle of inclination is larger within the specific limits, and valve stroke is less.
Automobile, when lower-speed state travels, is turned valve 3 strokes down, and valve 3 can not opened ahead of time, piston 6 in firing chamber 5 pushes, and the waste gas that fuel combustion produces, can not return to air flue 4, thereby air flue 4 carbon distributions have effectively been avoided, the working life of effectively having improved motor.
Claims (3)
1. the valve mechanism that stroke is adjustable, comprise camshaft (1) and valve (3), on valve (3), be provided with and yoke frame (11) that the cam (14) of camshaft (1) contacts, it is characterized in that, between described cam (14) and yoke frame (11), be provided with a wedge block (2); Wedge block (2) one end is provided with control end slide block (7) and rocking arm (10), control end slide block (7) is placed on and is fixed in the other slideway (8) of rocking arm (10), and wedge block (2) is connected with the rotating shaft (12) in control end slide block (7) by the connecting rod of end; On rocking arm (10), be also respectively arranged with rocking arm stationary axle (9) and the power mechanism (13) for adjusting rock arm (10) inclination angle.
2. the adjustable valve mechanism of stroke according to claim 1, is characterized in that, the long arm end of described rocking arm (10) and galianconism end are connected with respectively described power mechanism (13).
3. the adjustable valve mechanism of stroke according to claim 1, is characterized in that, described power mechanism (13) is formed by eccentric wheel, connecting rod, stepper motor combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320688907.2U CN203570378U (en) | 2013-11-04 | 2013-11-04 | Valve mechanism with adjustable stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320688907.2U CN203570378U (en) | 2013-11-04 | 2013-11-04 | Valve mechanism with adjustable stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570378U true CN203570378U (en) | 2014-04-30 |
Family
ID=50538112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320688907.2U Expired - Fee Related CN203570378U (en) | 2013-11-04 | 2013-11-04 | Valve mechanism with adjustable stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612778A (en) * | 2013-11-04 | 2015-05-13 | 杨洪显 | Valve mechanism with adjustable stroke |
-
2013
- 2013-11-04 CN CN201320688907.2U patent/CN203570378U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612778A (en) * | 2013-11-04 | 2015-05-13 | 杨洪显 | Valve mechanism with adjustable stroke |
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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: 20140430 Termination date: 20151104 |
|
| EXPY | Termination of patent right or utility model |