CN203906029U - Valve mechanism of engine, engine and vehicle - Google Patents
Valve mechanism of engine, engine and vehicle Download PDFInfo
- Publication number
- CN203906029U CN203906029U CN201420283001.7U CN201420283001U CN203906029U CN 203906029 U CN203906029 U CN 203906029U CN 201420283001 U CN201420283001 U CN 201420283001U CN 203906029 U CN203906029 U CN 203906029U
- Authority
- CN
- China
- Prior art keywords
- valve
- distribution device
- follower
- tappet
- rocking arm
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/06—Cam-followers
Abstract
The utility model discloses a valve mechanism of an engine and further discloses the engine and a vehicle. The valve mechanism of the engine comprises a cam shaft, a driven wheel (20), a rocker arm (30) and an air valve (40). The air valve (40) and the driven wheel (20) are connected to the rocker arm (30). A cam (10) of the cam shaft is combined with the driven wheel (20) and can drive the driven wheel (20) so as to make the air valve (40) be opened or closed. The rim of the driven wheel (20) is provided with a protrusion (21). The engine and the vehicle respectively comprise the valve mechanism. Since the protrusion (21) is arranged on the driven wheel (20), the opening degree of the air valve can be increased suddenly; as a result, residual gas can be discharged out of a combustion chamber, the air in the combustion chamber can be fresher, and the effect of optimizing scavenge air can be achieved.
Description
Technical field
The utility model relates to engine art, particularly, and the motor and the vehicle that relate to a kind of distribution device of motor and there is this distribution device.
Background technique
In the motor of vehicle, in order to guarantee that the air inlet of cylinder is abundant, exhaust is thorough, require valve to there is large as far as possible passing capacity, so the actual opening and closing of inlet and outlet door of motor are just at the upper and lower stop of piston, but suitable shifting to an earlier date and lag.Because intake valve is early opened and exhaust valve pass in evening, will have the phenomenon that a period of time inlet and outlet door is opened simultaneously.This period of time that intake valve and exhaust valve are opened is simultaneously called valve overlap duration.In the prior art, in valve overlap duration, exhaust valve aperture is more and more less, and intake valve aperture is increasing, and both aperture change curves are smoothed curve.
Camshaft is the vitals in distribution device.In order to reduce the wearing and tearing of cam, the follower coordinating with cam is set on tappet or rocking arm conventionally.In theory, the shape of cam and follower has determined the lift of valve and the characteristics of motion of lifting process thereof, and the distance between the axle center of camshaft and the axle center of follower has determined the aperture of valve.Yet in the prior art, because follower is generally common wheel-like structure, the wheel rim of follower equates with the distance between axle center, cannot realize the effect that regulates valve opening everywhere.
Model utility content
The purpose of this utility model is to provide a kind of distribution device that can optimize the motor of scavenging.
To achieve these goals, the utility model provides a kind of distribution device of motor, comprise camshaft, follower, rocking arm and valve, described valve and described follower are connected in described rocking arm, the cam of described camshaft is combined with described follower and can be driven described follower, so that described valve opens or closes, wherein, on the wheel rim of described follower, be formed with projection.
Preferably, described distribution device also comprises tappet and pitman arm shaft, and described rocking arm is arranged on described pitman arm shaft rotationally, and described follower is connected in one end of described rocking arm by described tappet, and described valve is connected in the other end of described rocking arm.
Preferably, described rocking arm is roller rocker arms, the roller that described follower is described roller rocker arms, and described distribution device also comprises tappet, described tappet and described valve are connected to the two ends of described rocking arm.
Preferably, described tappet is hydraulic tappet.
Preferably, the girth of described cam and the girth of described follower equate.
Preferably, described in, convex to form as the axially extended microscler projection along described follower.
Preferably, described distribution device comprises valve guide bushing and valve spring, and this valve guide bushing and valve spring are set on described valve.
The utility model also provides a kind of motor, and this motor comprises distribution device as above.
The utility model also provides a kind of vehicle, and this vehicle comprises motor as above.
Pass through technique scheme, on wheel rim due to follower, be formed with projection, therefore, by follower is arranged as, projection is contacted in above-mentioned valve overlap duration with cam, can make the aperture of intake valve in the mild process increasing, open suddenly large, utilize the inlet stream increasing that most residual gass in firing chamber are discharged to firing chamber, make the aperture of exhaust valve in the process reducing gently, open suddenly greatly simultaneously, be convenient to residual gas to discharge fast firing chamber, the indoor air that makes to burn is more fresh, thereby realize the abundant effect of burning and reducing discharge in cylinder, reach the effect of optimizing scavenging.
Other feature and advantage of the present utility model partly in detail are described the embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the distribution device of the motor of a kind of mode of execution of the present utility model;
Fig. 2 is the enlarged view of A part in Fig. 1;
Fig. 3 is according to the partial schematic sectional view of the distribution device of the motor of another kind of mode of execution of the present utility model;
Fig. 4 is the enlarged view of B part in Fig. 3.
Description of reference numerals
10 cam 20 follower 21 projections
30 Rocker arm 40 valve 50 tappets
60 pitman arm shaft 70 valve guide bushing 80 valve spring
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
According to an aspect of the present utility model, a kind of distribution device of motor is provided, comprise camshaft, follower 20, rocking arm 30 and valve 40, described valve 40 is connected in described rocking arm 30 with described follower 20, the cam 10 of described camshaft is with described follower 20 combinations and can drive described follower 20, so that described valve 40 opens or closes, wherein, on the wheel rim of described follower 20, be formed with projection 21.
It should be noted that, the valve 40 of mentioning in the utility model can be intake valve, can be also exhaust valve.
As mentioned above, in the distribution device of motor, because intake valve is early opened and exhaust valve pass in evening, will have the phenomenon that a period of time intake valve and exhaust valve are opened simultaneously, produce valve overlap duration, in valve overlap duration, exhaust valve aperture gently reduces, and intake valve aperture gently increases.By technique scheme of the present utility model, on wheel rim due to follower 20, be formed with projection 21, therefore, by follower 20 is arranged as, projection 21 is contacted in above-mentioned valve overlap duration with cam 10, can make the aperture of intake valve in the mild process increasing, open suddenly large, utilize the inlet stream increasing that most residual gass in firing chamber are discharged to firing chamber, make the aperture of exhaust valve in the process reducing gently, open suddenly greatly simultaneously, be convenient to residual gas to discharge fast firing chamber, the indoor air that makes to burn is more fresh, thereby realize the abundant effect of burning and reducing discharge in cylinder, reach the effect of optimizing scavenging.
As well known to a person skilled in the art, engine valve actuating mechanism can be divided three classes according to the setting type difference of camshaft: cam axle underneath type valve mechanism, camshaft middle distribution device and camshaft up-set type distribution device.The distribution device of motor of the present utility model can be any one in above-mentioned three kinds of distribution devices.
In the situation that the distribution device of motor of the present utility model is cam axle underneath type valve mechanism or camshaft middle distribution device, as shown in Figure 1, described distribution device also comprises tappet 50 and pitman arm shaft 60, described rocking arm 30 is arranged on described pitman arm shaft 60 rotationally, described follower 20 is connected in one end of described rocking arm 30 by described tappet 50, described valve 40 is connected in the other end of described rocking arm 30.Now, follower 20 is integrated on tappet 50, and tappet 50 is roller type tappet.Tappet 50 mainly plays transferring power.
It should be noted that, although not shown, but those skilled in the art hold intelligible, in the situation that distribution device of the present utility model is cam underneath type valve mechanism, described distribution device can also comprise the push rod being connected between rocking arm 30 and tappet 50.
In the situation that the distribution device of motor of the present utility model is camshaft up-set type distribution device, as shown in Figure 3, described rocking arm 30 is roller rocker arms, the roller that described follower 20 is described roller rocker arms, described distribution device also comprises tappet 50, and described tappet 50 and described valve 40 are connected to the two ends of described rocking arm 30.
Different from above-mentioned cam axle underneath type valve mechanism or camshaft middle distribution device, in camshaft up-set type distribution device, tappet 50 mainly plays trimming moment so that rocking arm keeps balance.In order to eliminate the gap in distribution device, preferably, described tappet 50 is hydraulic tappet.
Known, in distribution device, camshaft rotates a circle, valve completes opening-closing process one time, in order to guarantee to occur that above-mentioned valve opens suddenly large phenomenon when camshaft rotates to same position, in other words, in order to contact with the same position on cam 10 wheel rims in each valve opening-closing process protrusions 21, preferably, the girth of described cam 10 equates with the girth of described follower 20.Certainly, the girth of cam 10 also can be unequal with the girth of follower 20, for example, the girth of follower 20 can for the N of the girth of cam 10 doubly, N the projection 21 that can equidistantly distribute on the wheel rim of cam 10, this mode of execution can guarantee that projection 21 contacts with the same position on cam 10 wheel rims equally.
Described protruding 21 can for various suitable shapes, for example, can form point-like.In order to make distribution device operation more steady, preferably, described protruding 21 form the axially extended microscler projection along described follower 20, described protruding 21 form line style projection.
Particularly, as shown in figures 1 and 3, described distribution device comprises valve guide bushing 70 and valve spring 80, and this valve guide bushing 70 and valve spring 80 are set on described valve 40.
According on the other hand of the present utility model, a kind of motor is provided, this motor comprises according to distribution device of the present utility model.
According to of the present utility model, provide a kind of motor also on the one hand, this vehicle comprises according to motor of the present utility model.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, between various mode of execution of the present utility model, also can carry out combination in any, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
1. the distribution device of a motor, comprise camshaft, follower (20), rocking arm (30) and valve (40), described valve (40) is connected in described rocking arm (30) with described follower (20), the cam of described camshaft (10) is with described follower (20) combination and can drive described follower (20), so that described valve (40) opens or closes, it is characterized in that, on the wheel rim of described follower (20), be formed with projection (21).
2. distribution device according to claim 1, it is characterized in that, described distribution device also comprises tappet (50) and pitman arm shaft (60), described rocking arm (30) is arranged on described pitman arm shaft (60) rotationally, described follower (20) is connected in one end of described rocking arm (30) by described tappet (50), described valve (40) is connected in the other end of described rocking arm (30).
3. distribution device according to claim 1, it is characterized in that, described rocking arm (30) is roller rocker arms, the roller that described follower (20) is described roller rocker arms, described distribution device also comprises tappet (50), and described tappet (50) and described valve (40) are connected to the two ends of described rocking arm (30).
4. distribution device according to claim 3, is characterized in that, described tappet (50) is hydraulic tappet.
5. distribution device according to claim 1, is characterized in that, the girth of described cam (10) equates with the girth of described follower (20).
6. distribution device according to claim 1, is characterized in that, described projection (21) forms along the axially extended microscler projection of described follower (20).
7. distribution device according to claim 1, is characterized in that, described distribution device comprises valve guide bushing (70) and valve spring (80), and this valve guide bushing (70) and valve spring (80) are set on described valve (40).
8. a motor, is characterized in that, this motor comprises according to the distribution device described in any one in claim 1-7.
9. a vehicle, is characterized in that, this vehicle comprises motor according to claim 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283001.7U CN203906029U (en) | 2014-05-29 | 2014-05-29 | Valve mechanism of engine, engine and vehicle |
| PCT/CN2015/076411 WO2015180535A1 (en) | 2014-05-29 | 2015-04-13 | Valve mechanism of engine, engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283001.7U CN203906029U (en) | 2014-05-29 | 2014-05-29 | Valve mechanism of engine, engine and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906029U true CN203906029U (en) | 2014-10-29 |
Family
ID=51780317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420283001.7U Expired - Fee Related CN203906029U (en) | 2014-05-29 | 2014-05-29 | Valve mechanism of engine, engine and vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203906029U (en) |
| WO (1) | WO2015180535A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015180535A1 (en) * | 2014-05-29 | 2015-12-03 | 北汽福田汽车股份有限公司 | Valve mechanism of engine, engine and vehicle |
| CN107676139A (en) * | 2017-09-29 | 2018-02-09 | 利辛县雨若信息科技有限公司 | A kind of valve actuating mechanism of automobile engine |
| CN107893706A (en) * | 2017-11-13 | 2018-04-10 | 海南大学 | A kind of continuous variable valve system and its control method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5456136A (en) * | 1991-04-24 | 1995-10-10 | Ntn Corporation | Cam follower with roller for use with engine |
| ES2255651T3 (en) * | 2002-10-17 | 2006-07-01 | Ntn Corporation | BEARING OF INTEGRAL TYPE ROLLERS AND MOTOR ROLLER CAMS FOLLOWERS. |
| DE102004048288A1 (en) * | 2004-10-05 | 2006-05-04 | Ina-Schaeffler Kg | Variable valve train of an internal combustion engine |
| US8807102B2 (en) * | 2009-09-14 | 2014-08-19 | Honda Motor Co., Ltd | Variable valve operating device for internal combustion engine |
| CN102102559B (en) * | 2011-03-10 | 2014-09-24 | 奚勇 | Compression releasing engine braking method and device |
| CN203906029U (en) * | 2014-05-29 | 2014-10-29 | 北汽福田汽车股份有限公司 | Valve mechanism of engine, engine and vehicle |
-
2014
- 2014-05-29 CN CN201420283001.7U patent/CN203906029U/en not_active Expired - Fee Related
-
2015
- 2015-04-13 WO PCT/CN2015/076411 patent/WO2015180535A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015180535A1 (en) * | 2014-05-29 | 2015-12-03 | 北汽福田汽车股份有限公司 | Valve mechanism of engine, engine and vehicle |
| CN107676139A (en) * | 2017-09-29 | 2018-02-09 | 利辛县雨若信息科技有限公司 | A kind of valve actuating mechanism of automobile engine |
| CN107893706A (en) * | 2017-11-13 | 2018-04-10 | 海南大学 | A kind of continuous variable valve system and its control method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015180535A1 (en) | 2015-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101865738B1 (en) | Variable valve lift appratus | |
| CN102482961B (en) | Valve gear of internal combustion engine | |
| CN203906029U (en) | Valve mechanism of engine, engine and vehicle | |
| US9903240B2 (en) | Adjustable camshaft | |
| RU2016149735A (en) | Rotary engine | |
| CN104295331A (en) | Valve mechanism of motorcycle engine and motorcycle engine | |
| MXPA04004538A (en) | Valve mechanism for internal combustion engines. | |
| CN201159093Y (en) | Variable air valve mechanism of hydraulic internal combustion engine | |
| CN203559944U (en) | Assembled camshaft | |
| CN203531990U (en) | Valve timing mechanism of internal combustion engine | |
| CN101509404B (en) | Variable valve system | |
| CN105507979A (en) | Continuous variable valve lift system and automobile | |
| CN103967639A (en) | Premixed Compression Self-ignition Engine | |
| CN204877572U (en) | Put overhead valve valve timing mechanism of camshaft down | |
| CN104131854A (en) | Technique capable of continuously changing timing, phase and lift of valve of engine | |
| KR20130063346A (en) | Continuous variable valve lift apparatus | |
| CN102966391B (en) | Swinging arm mechanism controlled by using double cams | |
| KR101090798B1 (en) | Variable tappet | |
| RU2013114979A (en) | TURBOCHARGER OPERATION METHOD (OPTIONS) | |
| RU2529982C2 (en) | Engine valve drive | |
| CN103790669B (en) | For the valve actuating mechanism of engine and the vehicle with it | |
| CN208380652U (en) | A kind of automobile engine lift range variable regulating mechanism | |
| CN105814302A (en) | Piston engine and associated operating method | |
| CN203685332U (en) | Improved internal combustion engine air valve structure | |
| US9103238B2 (en) | Continuous variable valve lift device |
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: 20141029 Termination date: 20190529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |