CN207568670U - A kind of engine mechanical tappets device - Google Patents
A kind of engine mechanical tappets device Download PDFInfo
- Publication number
- CN207568670U CN207568670U CN201721646403.9U CN201721646403U CN207568670U CN 207568670 U CN207568670 U CN 207568670U CN 201721646403 U CN201721646403 U CN 201721646403U CN 207568670 U CN207568670 U CN 207568670U
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- China
- Prior art keywords
- oil
- engine mechanical
- mechanical tappets
- engine
- piston
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Abstract
The utility model discloses a kind of engine mechanical tappets devices, by logical oil mass of the control oil pipe into oil duct stroke chamber and oil pocket, squeeze and drive piston motion, so as to fulfill the relative distance between electrodeless adjustment piston and housing；When cam acts on case top, according to housing and the difference of piston space distance, the stroke of piston is also different, so as to which valve stem be driven to move, realizes electrodeless adjustment valve stroke, meets practical diversified demand；Moreover, the utility model is simple in structure, reliability is high, and cost is relatively low.
Description
Technical field
The utility model is related to vehicle transmission field more particularly to a kind of engine mechanical tappets devices.
Background technology
It is become increasingly popular with energy saving and environmental protection concept, automotive energy-saving emission-reducing is more taken seriously, and engine variable gas
Door lift technology is to realize an effective means of automotive energy-saving emission-reducing.In automobile climbing and accelerating mode, the work(of engine
Rate have it is more than needed, i.e., automobile when running at a low speed Partial Power really be wasted；And engine variable valve lift skill
Art can change the lift of valve under different operating modes, so as to change engine power, can both make full use of engine power,
Fuel consumption can be reduced again, exhaust gas discharge is reduced, reach energy-saving and environment-friendly effect.
At present, most of variable air valve lift range mechanisms are cam displacement, more cams, inside and outside rocker arm body, wherein inside and outside shake
Arm mechanism can only realize cylinder deactivation and normal work both of which mostly, it is impossible to meet actual demand；Moreover, the mechanism structure is more
Complexity, reliability is low, and cost is higher.
Utility model content
The purpose of this utility model is to provide a kind of engine mechanical tappets device, to solve the problems of the prior art,
It realizes electrodeless control valve stroke, and simplifies structure, improve reliability.
The utility model provides a kind of engine mechanical tappets device, and the engine mechanical tappets device includes：
Housing, the enclosure interior offer the oil duct stroke chamber and oil pocket connected from top to bottom, are set on the housing
There is the trepanning connected with oil duct stroke chamber；
The oil pipe of hull outside is arranged on, the oil pipe is connected with the trepanning, for into oil duct stroke chamber and oil pocket
Fuel feeding；
The oil pocket bottom opening, and the piston that can be moved up and down along oil pocket wall, the piston are provided in the opening
Lower end is connect with valve stem, valve spring；
Positioned at the cam of case top, moved downward for squeezing drive shell.
Preferably, the trepanning is arranged on the case top, and the position that the trepanning is corresponded on the cam is set
It is equipped with the groove for avoiding oil pipe.
Preferably, the groove is set along cammed circumferential.
Preferably, the oil duct stroke chamber is column type chamber with oil pocket, and the diameter of oil pocket is more than oil duct stroke chamber
Diameter.
Preferably, the engine mechanical tappets device further includes the elastic position rebounding device being arranged in oil pocket, it is described
It is affixed at the top of elastic position rebounding device with the roof of oil pocket, the elastic position rebounding device bottom is affixed with piston upper surface.
Preferably, the elastic position rebounding device is return spring.
Preferably, the rigidity of the return spring is less than the rigidity of the valve spring.
Preferably, the engine mechanical tappets device further includes controller, the controller is arranged on the oil pipe
On, for controlling the flow of the oil pipe.
It is covered preferably, the controller is arranged on engine cylinder.
Preferably, the controller is solenoid valve.
Engine mechanical tappets device provided by the utility model, by control oil pipe into oil duct stroke chamber and oil pocket
Logical oil mass, squeezes and drives piston motion, so as to fulfill the relative distance between electrodeless adjustment piston and housing；When cam acts on
During case top, according to housing and the difference of piston space distance, the stroke of piston is also different, real so as to which valve stem be driven to move
Existing electrodeless adjustment valve stroke, meets practical diversified demand；Moreover, the utility model is simple in structure, reliability is high, and cost
It is relatively low.
Description of the drawings
Fig. 1 is the structure diagram of engine mechanical tappets device that the utility model embodiment provides；
Fig. 2 is the structure diagram of engine mechanical tappets device that another embodiment of the utility model provides；
Reference sign：
1- housings, 11- trepannings, 12- oil duct stroke chambers, 13- oil pockets, 2- pistons, 3- oil pipes, 4- controllers, 5- cams,
51- grooves, 6- return springs.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
As shown in Figure 1, also can be found in Fig. 2, the utility model embodiment provides a kind of engine mechanical tappets device, institute
Engine mechanical tappets device is stated to include：
Housing 1 offers the oil duct stroke chamber 12 connected from top to bottom and oil pocket 13, the housing 1 inside the housing 1
On be provided with the trepanning 11 connected with oil duct stroke chamber 12；
The oil pipe 3 being arranged on outside housing 1, the oil pipe 3 are connected with the trepanning 11, for oil duct stroke chamber 12 with
Fuel feeding in oil pocket 13；
13 bottom opening of oil pocket, and the piston 2 that can be moved up and down along 13 wall of oil pocket is provided in the opening, it is described
2 lower end of piston is connect with valve stem, valve spring；
Cam 5 positioned at 1 top of housing, moves downward for squeezing drive shell 1.
Wherein, piston 2 and 13 wall clearance fit of oil pocket, oil pipe 3 are generally divided into the outer oil pipe 3 of connection and inner oil tube 3, outer oil
Pipe 3 is connect with fuel feeding source, and inner oil tube 3 is generally L-type bending tube, is connect with trepanning 11；
Engine mechanical tappets device provided by the utility model, by control oil pipe 3 to oil duct stroke chamber 12 and oil pocket
Logical oil mass in 13 squeezes and piston 2 is driven to move, so as to fulfill the relative distance between electrodeless adjustment piston 2 and housing 1；When
When cam 5 acts on 1 top of housing, according to the difference of distance between housing 1 and piston 2, the stroke of piston 2 is also different, so as to band
Door rod of taking offence moves, and realizes electrodeless adjustment valve stroke, meets practical diversified demand；Moreover, the utility model is simple in structure,
Reliability is high, and cost is relatively low.
Preferably, the trepanning 11 is arranged on 1 top of housing, and the trepanning 11 is corresponded on the cam 5
Position is provided with the groove 51 for avoiding oil pipe 3.Preferably, the groove 51 is set along 5 periphery of cam.Wherein, it is anti-
Only L-type bending tube is interfered with cam 5, a circle groove 51 is opened up on 5 outer wall of cam, when cam 5 rotates, L-type bending tube is just
In the groove 51, it is independent of each other.
Preferably, the oil duct stroke chamber 12 is column type chamber with oil pocket 13, and the diameter of oil pocket 13 is more than oil duct row
The diameter of journey chamber 12.Preferably, the engine mechanical tappets device further includes the elastic recoil dress being arranged in oil pocket 13
It puts, is affixed at the top of the elastic position rebounding device with the roof of oil pocket 13, the elastic position rebounding device bottom and 2 upper surface phase of piston
Patch.Preferably, the elastic position rebounding device is return spring 6.The effect of return spring 6 is so that shell is returned with piston 2
Multiple certain distance.
Preferably, the rigidity of the return spring 6 is less than the rigidity of the valve spring.
Preferably, the engine mechanical tappets device further includes controller 4, the controller 4 is arranged on the oil
On pipe 3, for controlling the flow of the oil pipe 3.Preferably, the controller 4 is arranged on engine cylinder and covers.As excellent
Choosing, the controller 4 are solenoid valve.
In the utility model embodiment, to reduce 1 size of housing, trepanning 11 is arranged in 1 middle part of housing, and controller 4 is set
On cylinder cap, during movement, do not moved with cam 5 and housing 1, housing 1 is connect with piston 2 by return spring 6 in oil pocket 13；Control
Device 4 processed can be led to control oil pipe 3 oil mass number, can also close oil pipe 3 realize pressurize, be arranged on cylinder cap；Trepanning 11 with
It is sealed between oil pipe 3 using structures such as sealing rings；
In addition, the rigidity due to 2 upper end return spring 6 of piston is less than the rigidity of 2 lower end valve spring of piston, in oil pocket 13
When interior low on fuel and cam 5 are operated in basic circle, housing 1 often contacts under the action of return spring 6 with cam 5, improves work
Stability；And the low on fuel or when being zero in oil pocket 13, the effect of housing 1 end cam 5 and lower end return spring 6 on it
Under moved with cam 5, piston 2 is then motionless due to the effect of its lower end valve spring, so as to fulfill cylinder deactivation；In short, piston 2 with
Relative motion between housing 1 can flexibly realize each position by the cooperation between oil pressure, return spring 6 and valve spring
Motion state.
The structure, feature and effect of the utility model are described in detail based on the embodiments shown in the drawings, with
Upper described is only the preferred embodiment of the utility model, but the utility model is to limit practical range shown in drawing, it is every according to
Change that conception according to the utility model is made or the equivalent embodiment for being revised as equivalent variations, still without departing from specification and figure
When showing covered spirit, it should be within the protection scope of the present utility model.
Claims (10)
1. a kind of engine mechanical tappets device, which is characterized in that the engine mechanical tappets device includes：
Housing, the enclosure interior offer the oil duct stroke chamber and oil pocket connected from top to bottom, be provided on the housing with
The trepanning of oil duct stroke chamber connection；
The oil pipe of hull outside is arranged on, the oil pipe is connected with the trepanning, for the fuel feeding into oil duct stroke chamber and oil pocket；
The oil pocket bottom opening, and the piston that can be moved up and down along oil pocket wall, the piston are provided in the opening
It is connect with valve stem, valve spring；
Positioned at the cam of case top, moved downward for squeezing drive shell.
2. engine mechanical tappets device according to claim 1, which is characterized in that the trepanning is arranged on the housing
Top, and the position that the trepanning is corresponded on the cam is provided with the groove for avoiding oil pipe.
3. engine mechanical tappets device according to claim 2, which is characterized in that the groove is set along cammed circumferential
It puts.
4. engine mechanical tappets device according to claim 1, which is characterized in that the oil duct stroke chamber and oil pocket are equal
For column type chamber, and the diameter of oil pocket is more than the diameter of oil duct stroke chamber.
5. engine mechanical tappets device according to claim 4, which is characterized in that the engine mechanical tappets device
The elastic position rebounding device being arranged in oil pocket is further included, the elastic position rebounding device top and the roof of oil pocket are affixed, the bullet
Property returning device bottom is affixed with piston upper surface.
6. engine mechanical tappets device according to claim 5, which is characterized in that the elastic position rebounding device is return
Spring.
7. engine mechanical tappets device according to claim 6, which is characterized in that the rigidity of the return spring is less than
The rigidity of the valve spring.
8. according to claim 1-7 any one of them engine mechanical tappets devices, which is characterized in that the engine machinery
Tappet device further includes controller, and the controller is arranged on the oil pipe, for controlling the flow of the oil pipe.
9. engine mechanical tappets device according to claim 8, which is characterized in that the controller is arranged on engine
On cylinder cap.
10. engine mechanical tappets device according to claim 8, which is characterized in that the controller is solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721646403.9U CN207568670U (en) | 2017-11-30 | 2017-11-30 | A kind of engine mechanical tappets device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721646403.9U CN207568670U (en) | 2017-11-30 | 2017-11-30 | A kind of engine mechanical tappets device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207568670U true CN207568670U (en) | 2018-07-03 |
Family
ID=62689579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721646403.9U Expired - Fee Related CN207568670U (en) | 2017-11-30 | 2017-11-30 | A kind of engine mechanical tappets device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207568670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706443A (en) * | 2020-06-24 | 2020-09-25 | 摩登汽车有限公司 | Crankcase assembly and two-stroke engine |
-
2017
- 2017-11-30 CN CN201721646403.9U patent/CN207568670U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706443A (en) * | 2020-06-24 | 2020-09-25 | 摩登汽车有限公司 | Crankcase assembly and two-stroke engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180703 Termination date: 20201130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |