CN203856526U - Cam mechanism of engine cylinder - Google Patents
Cam mechanism of engine cylinder Download PDFInfo
- Publication number
- CN203856526U CN203856526U CN201420152925.3U CN201420152925U CN203856526U CN 203856526 U CN203856526 U CN 203856526U CN 201420152925 U CN201420152925 U CN 201420152925U CN 203856526 U CN203856526 U CN 203856526U
- Authority
- CN
- China
- Prior art keywords
- camshaft
- axle sleeve
- cam
- cam mechanism
- returning axle
- 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
Landscapes
- Valve Device For Special Equipments (AREA)
Abstract
The utility model discloses a cam mechanism of an engine cylinder. The cam mechanism comprises a cam shaft (20) and adjustable cams (21), wherein external helical tooth guide slots (201) are formed in the cam shaft; a driving chain wheel is arranged at one end of the cam shaft and is driven to rotate by an engine crankshaft; the adjustable cams sleeve the cam shaft; internal helical tooth guide slots (211) are formed in the inner circumferential surfaces of the adjustable cams; the internal helical tooth guide slots and the external helical tooth guide slots are matched to enable the adjustable cams to move along the external helical tooth guide slots relative to the cam shaft. According to the technical scheme, the adjustable cams are arranged on the cam shaft and can move relative to the cam shaft in the circumferential direction and the axial direction, so that the phases of the adjustable cams can be adjusted, and the phases between single-cylinder air valves can be synchronously displaced; therefore the advantages of intake and exhaust systems in the economy, the dynamic property and the emission performance of an engine are further improved.
Description
Technical field
The utility model relates to engine technology, particularly, relates to a kind of cam mechanism of cylinder.
Background technique
Along with rise of the oil price and Abgasgesetz more and more stricter, Ge great automobile factory commercial city is being devoted to study new technology to meet the needs in market.At present, in the air inlet system and exhaust system of automobile, adopt a series of technology to reduce restriction loss, improved charging efficiency, reduced vent systems back pressure etc., to improve fuel economy, meet the different dynamic demand of engine operating condition and reduce the emission level of automobile, and always in the technology of constantly studying and improve this respect to meet higher requirement.
Wherein, in the air inlet system and exhaust system of motor car engine, conventionally adopt intake and exhaust VVT(changing air valve phase) technology and intake and exhaust VVL(lift range variable) technology and deriving technology thereof, coordinate again the EGR(of inside/outside portion exhaust gas recirculatioon) and charge inter cooling technology, the aspects such as power character, Economy and emission performance promoting motor, play irreplaceable effect.
The technology such as existing VVT and VVL, although can meet under the different operating modes of engine running, adjusting phase place valve timing and valve lift, to adapt to the intake and exhaust demand of Under Different Work Condition of Engine, but also there are a lot of shortcomings: can not change the phase lock between single cylinder valve, can not realize single cylinder phase place dystopy; The asynchronous of air inlet phase can not be passed through, by the phase change of single cylinder dual valve, turbulence intensity and the atomizing effect of air inlet cannot be strengthened by the opening process of valve; And vent systems can not process the gas of the exhaust passage in cylinder head respectively according to the variation of phase place, can only in total passage, get gas at the arm of gas exhaust manifold and carry out again EGR recirculation; Can not be to the variable phase of air inlet and exhaust and overlapping angle optimization, also just cannot be to the fuel economy of motor, power character and emission level optimization.
Model utility content
The purpose of this utility model is to provide a kind of cam mechanism of cylinder, and this cam mechanism has the adjustable cam that can move along camshaft.
To achieve these goals, the utility model provides a kind of cam mechanism of cylinder, and wherein, this cam mechanism comprises
Camshaft, is formed with outer helical teeth guiding groove on this camshaft, one end of described camshaft is provided with driving sprocket wheel, and this driving sprocket wheel drives rotation by engine crankshaft;
Adjustable cam, this adjustable cam is enclosed within on described camshaft, and on the inner peripheral surface of described adjustable cam, be provided with interior helical teeth guiding groove, this interior helical teeth guiding groove and described outer helical teeth guiding groove cooperatively interact so that described adjustable cam moves with respect to described camshaft along described outer helical teeth guiding groove.
Preferably, described cam mechanism also comprises stationary cam, and this stationary cam is enclosed within on described camshaft regularly.
Preferably, described cam mechanism also comprises flexible restoring organ, and this flexible restoring organ is arranged on described camshaft and is positioned at a side of described adjustable cam.
Preferably, described flexible restoring organ comprises:
Returning axle sleeve, this returning axle sleeve is enclosed within on described camshaft regularly, and in the sidewall of described returning axle sleeve, is formed with the duct of in axial direction extending;
Elastic supporting member for supporting optical member, this elastic supporting member for supporting optical member is arranged in described duct and from described returning axle sleeve and stretches out described returning axle sleeve towards a side of described adjustable cam;
Reset bearing, this resetting shaft bearing sleeve is on described camshaft and can be in axial direction relatively described camshaft motion, the end in contact that the first side of described reset bearing and described elastic supporting member for supporting optical member stretch out, on the second side, be provided with ball bearing, this second side contacts with described adjustable cam.
Preferably, described stationary cam is arranged on the side away from described adjustable cam of described returning axle sleeve.
Preferably, together with described stationary cam is permanently connected with described returning axle sleeve or form, and described stationary cam and described returning axle sleeve are all connected on described camshaft by the mode of interference fit.
Preferably, described elastic supporting member for supporting optical member comprises ball, Returnning spring and the tappet being successively set in described duct, and one end of described Returnning spring is connected with described ball, and the other end is connected with described tappet, the external part of described tappet reaches outside described returning axle sleeve from described duct
On the first side of described reset bearing, be provided with the locating slot corresponding with described tappet, the external part of described tappet is engaged in the locating slot of described reset bearing.
Preferably, described tappet is hollow tube.
Preferably, the inside of described camshaft is formed with the Oil Guide chamber of extending vertically, one end sealing of described camshaft, the other end is formed with oil diverting port, and this oil diverting port is communicated with this Oil Guide chamber, is provided with camshaft oil outlet on described camshaft, this camshaft oil outlet is communicated with described Oil Guide chamber
On the internal surface of described returning axle sleeve, be formed with returning axle sleeve oil groove, this returning axle sleeve oil groove and described camshaft oil outlet arrange accordingly, are formed with the returning axle sleeve oilhole corresponding with described ball in described duct on the internal surface of described returning axle sleeve oil groove.
Preferably, described cam mechanism also comprises spring bearing, and this spring bearing comprises upper ball cover and the lower ball cover that cooperatively interacts to fix described camshaft, and described lower ball cover is fixed on the cylinder cap of described cylinder.
Preferably, on described lower ball cover, be provided with lower ball cover oil duct.
Pass through technique scheme, on camshaft, be provided with adjustable cam, this adjustable cam can move with respect to camshaft on circumferential direction and axial direction, thereby adjust the phase place of adjustable cam, and then make synchronously dystopy of phase place between single cylinder valve, thereby further improve the advantage of air inlet system and exhaust system aspect motor Economy, power character and emission performance.
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 cam mechanism of the utility model preferred implementation;
Fig. 2 is the side view of cam structure as shown in Figure 1;
Fig. 3 is according to the schematic diagram of the camshaft of the utility model preferred implementation;
Fig. 4 is according to the schematic diagram of the adjustable cam of the utility model preferred implementation;
Fig. 5 is according to the sectional view of the camshaft of Fig. 3;
Fig. 6 is according to the decomposing schematic representation of the spring reset mechanism of the utility model preferred implementation;
Fig. 7 is according to the sectional view of the spring reset mechanism of the utility model preferred implementation;
Fig. 8 is according to the schematic diagram of the stationary cam of the utility model preferred implementation and returning axle sleeve;
Fig. 9 is according to the plan view of the first side of the reset bearing of the utility model preferred implementation;
Figure 10 is according to the plan view of the second side of the reset bearing of the utility model preferred implementation;
Figure 11 is according to the decomposing schematic representation of the spring bearing of the utility model preferred implementation;
Figure 12 is the schematic diagram cooperatively interacting according to the cam mechanism of the utility model preferred implementation and control mechanism.
Description of reference numerals
The outer helical teeth guiding groove of 20 camshaft 201
202 Oil Guide chamber 203 oil diverting ports
204 camshaft oil outlet 21 adjustable cams
211 interior helical teeth guiding groove 22 stationary cams
23 returning axle sleeve 231 returning axle sleeve oil grooves
232 returning axle sleeve oilhole 24 reset bearings
25 ball 26 Returnning springs
27 tappet 28 upper ball covers
29 lower ball cover 291 lower ball cover oil ducts
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.
In the utility model, in the situation that not doing contrary explanation, the noun of locality of use typically refers to the direction of the central axis of camshaft as " axial direction "; " radial direction " and " circumferential direction " should specifically be understood in conjunction with actual indication parts and context.
The utility model provides a kind of cam mechanism of cylinder, and wherein, this cam mechanism comprises
Camshaft 20, is formed with outer helical teeth guiding groove 201 on this camshaft 20, one end of described camshaft 20 is provided with driving sprocket wheel, and this driving sprocket wheel drives rotation by engine crankshaft;
Adjustable cam 21, this adjustable cam is enclosed within on described camshaft 20, and on the inner peripheral surface of described adjustable cam 21, be provided with interior helical teeth guiding groove 211, this interior helical teeth guiding groove 211 cooperatively interacts so that described adjustable cam 21 moves with respect to described camshaft 20 along described outer helical teeth guiding groove 201 with described outer helical teeth guiding groove 201.
According to the technical solution of the utility model, in a cylinder, cam is arranged on same camshaft 20, can comprise one or more adjustable cams 21 in this cylinder, also just forms the outer helical teeth guiding groove 201 corresponding with adjustable cam 21 quantity and position on camshaft 20.The middle formation of adjustable cam 21 is porose, is formed with interior helical teeth guiding groove 211 on the inner peripheral surface of adjustable cam 21 towards the inside in hole.Therefore, between adjustable cam 21 and camshaft 20, just by cooperatively interacting between interior helical teeth guiding groove 211 and outer helical teeth guiding groove 201, link together, and adjustable cam 21 can be by interior helical teeth guiding groove 211 and with respect to outer helical teeth guiding groove 201 motions.
Because interior helical teeth guiding groove 211 and outer helical teeth guiding groove 201 are all along the axial direction of camshaft 20 and extend spirally towards the same side, shape of threads the setting that matches, thereby adjustable cam 21 can either rotate around circumferential direction with respect to camshaft 20, can in axial direction move again.Therefore can, according to the phase angle of adjustable cam 21 required adjustment, correspondingly control adjustable cam 21 with respect to the amount of movement of camshaft 20.
Pass through technique scheme, on camshaft, be provided with adjustable cam, this adjustable cam can move with respect to camshaft on circumferential direction and axial direction, thereby adjust the phase place of adjustable cam, and then make synchronously dystopy of phase place between single cylinder valve, thereby further improve the advantage of air inlet system and exhaust system aspect motor Economy, power character and emission performance.
Preferably, described cam mechanism also comprises stationary cam 22, and this stationary cam 22 is enclosed within on described camshaft 20 regularly.
In this preferred implementation, cam mechanism of the present utility model comprises stationary cam 22 and adjustable cam 21, adjustable cam 21 and corresponding different intake valve and the exhaust valves of stationary cam 22 difference.Like this, when obtaining different valve-controls, can only adjust adjustable cam 21.And when adjusting the phase place of adjustable cam 21, the phase place of stationary cam 22 of just take regulates as benchmark, is not only convenient to control, and has improved the accuracy to adjustable cam 21 adjustings.
Preferably, described cam mechanism also comprises flexible restoring organ, when described push rod 13 is arranged on a side in axial direction of described adjustable cam 21, this flexible restoring organ is arranged on described camshaft 20 and is positioned at described adjustable cam 21 opposite side relative with described push rod 13 in axial direction.
In a kind of preferred implementation of the present utility model, in adjustable cam 21 side in axial direction, push rod 13 is set, relative opposite side arranges flexible restoring organ.
This flexible restoring organ can play the function of elastic reset, promotes adjustable cam 21 move along camshaft 20 by its restoring force.
This flexible restoring organ can adopt that in prior art, any one can play corresponding function and be applicable to structure of the present utility model, and the utility model is not limited.Below the preferred implementation of this flexible restoring organ is described.
Preferably, described flexible restoring organ comprises:
Returning axle sleeve 23, this returning axle sleeve 23 is enclosed within on described camshaft 20 regularly, and in the sidewall of described returning axle sleeve 23, is formed with the duct of in axial direction extending;
Elastic supporting member for supporting optical member, this elastic supporting member for supporting optical member is arranged in described duct and from described returning axle sleeve 23 and stretches out described returning axle sleeve 23 towards a side of described adjustable cam 21;
Reset bearing 24, this reset bearing 24 is enclosed within on described camshaft 20 and in axial direction relatively described camshaft 20 motions, the end in contact that the first side of described reset bearing 24 and described elastic supporting member for supporting optical member stretch out, on the second side, be provided with ball bearing, this second side contacts with described adjustable cam 21.
In the preferred implementation of flexible restoring organ, returning axle sleeve 23 is enclosed within on camshaft 20, and elastic supporting member for supporting optical member is arranged in the duct of this returning axle sleeve 23, and stretches out described returning axle sleeve 23 towards adjustable cam 21.
One end of stretching out of this elastic supporting member for supporting optical member and the first contacts side surfaces of reset bearing 24, and the second side of this reset bearing contacts with adjustable cam 21.Like this, take returning axle sleeve 23 as fixed support, elastic supporting member for supporting optical member flexibly supports this reset bearing 24 and in axial direction moves.
When adjustable cam 21 is subject to the promotion of external force and towards direction when motion of reset bearing 24, reset bearing 24 is also promoted by the direction towards returning axle sleeve 23, this elastic supporting member for supporting optical member is under pressure and compressive strain in the duct of returning axle sleeve 23; When the thrust of adjustable cam 21 is cancelled, the restoring force of elastic supporting member for supporting optical member promotes reset bearing 24 towards the direction motion of adjustable cam 21, reset bearing 24 is delivered to adjustable cam 21 by this power, thereby makes adjustable cam 21 towards the lateral movement away from reset bearing 24.
By the structure of above-mentioned flexible restoring organ, can cooperatively interact with the external force that promotes adjustable cam 21, along camshaft 20, promote adjustable cam 21 and adjustable cam 21 is resetted.
Preferably, described stationary cam 22 is arranged on the side away from described adjustable cam 21 of described returning axle sleeve 23.
More preferably, together with described stationary cam 22 is permanently connected with described returning axle sleeve 23 or form, and described stationary cam 22 and described returning axle sleeve 23 are all connected on described camshaft 20 by the mode of interference fit.
Because returning axle sleeve 23 is enclosed within on camshaft 20 regularly, therefore stationary cam 22 is arranged on to returning axle sleeve 23 away from a side of adjustable cam 21, this stationary cam 22 and returning axle sleeve 23 are mutually against to form an integral body, thereby increased the stiction with respect to camshaft 20 as a whole, can better avoid stationary cam 22 and returning axle sleeve 23 to move with respect to camshaft 20.
In mode of execution more preferably, stationary cam 22 adopts the mode of interference fit to be connected with camshaft 20 with returning axle sleeve 23, it is the diameter that the diameter of the through hole of the installation camshaft 20 that forms on stationary cam 22 and returning axle sleeve 23 is slightly less than camshaft 20, thereby make the camshaft 20 passing from stationary cam 22 and returning axle sleeve 23 be subject to certain pressure, thereby increase stiction, makes stationary cam 22 and returning axle sleeve 23 be difficult to move with respect to camshaft 20.
Preferably, described elastic supporting member for supporting optical member comprises ball 25, Returnning spring 26 and the tappet 27 being successively set in described duct, one end of described Returnning spring 26 is connected with described ball 25, the other end is connected with described tappet 27, the external part of described tappet 27 reaches outside described returning axle sleeve 23 from described duct
On the first side of described reset bearing 24, be provided with the locating slot corresponding with described tappet 27, the external part of described tappet 27 is engaged in the locating slot of described reset bearing 24.
In this preferred implementation, in the duct of described returning axle sleeve 23, be disposed with ball 25, Returnning spring 26 and tappet 27.Tappet 27 cooperatively interacts with the locating slot of the first side of reset bearing 24.Like this, between one end of Returnning spring 26 and returning axle sleeve 23, by ball, be connected, because the friction between ball and returning axle sleeve 23 is rolling friction, the sliding friction producing than Returnning spring 26 direct contacts with returning axle sleeve 23 is little, and ball 25 can also prevent that spring from blocking owing to there is the distortion of radial direction in duct.The other end of Returnning spring 26 is connected with tappet 27, thereby can flexibly support tappet 27 with respect to the duct motion of returning axle sleeve 23.
Preferably, described tappet 27 is hollow tube.The object that tappet 27 is set to hollow is to make the tappet 27 can also be as the passage of lubricant oil to guarantee the lubricated of Returnning spring 26 in returning axle sleeve 23 and ball 25.
Preferably, the inside of described camshaft 20 is formed with the Oil Guide chamber 202 of extending vertically, one end sealing of described camshaft 20, the other end is formed with oil diverting port 203, this oil diverting port 203 is communicated with this Oil Guide chamber 202, on described camshaft 20, be provided with camshaft oil outlet 204, this camshaft oil outlet 204 is communicated with described Oil Guide chamber 202
On the internal surface of described returning axle sleeve 23, be formed with returning axle sleeve oil groove 231, this returning axle sleeve oil groove 231 arranges accordingly with described camshaft oil outlet 204, is formed with the returning axle sleeve oilhole 232 corresponding with described ball 25 in described duct on the internal surface of described returning axle sleeve oil groove 231.
Lubricated for the ease of cam mechanism of the present utility model, the inside of camshaft 20 is formed with Oil Guide chamber 202, and preferably extend along the whole length of camshaft 20 in this Oil Guide chamber 202.And one end of this camshaft 20 sealing, the other end is formed with oil diverting port 203, can be by adding lubricant oil in these oil diverting port 203 guide oil pockets 202.In addition, be also provided with camshaft oil outlet 204 on camshaft 20, this camshaft oil outlet 204 is connected with Oil Guide chamber 202, thereby the lubricant oil in Oil Guide chamber 202 is transported to the outer surface of camshaft, so that the parts of installing on camshaft 20 are lubricated.
On the internal surface of returning axle sleeve 23, be formed with returning axle sleeve oil groove 231, this returning axle sleeve oil groove 231 is formed on the inner peripheral surface of returning axle sleeve 23 along circumferential direction, this returning axle sleeve oil groove 231 is corresponding with camshaft oil outlet 204, thus make the lubricant oil that flows out from camshaft oil outlet 204 can along circumferentially exist with this returning axle sleeve oil groove 231.
On the internal surface of this returning axle sleeve oil groove 231, be formed with the corresponding returning axle sleeve oilhole 232 of ball 25 in the duct with returning axle sleeve 23 inside, thereby make existence and the lubricant oil in returning axle sleeve oil groove 231 to enter into duct by returning axle sleeve oilhole 232, to lubricate ball 25, Returnning spring 26 and tappet 27, and can also by the tappet 27 of hollow, flow in the locating slot of reset bearing 24, so that the cooperation of tappet 27 and reset bearing 24 is lubricated.
Preferably, described oil diverting port 203 is formed on one end that described camshaft 20 is connected with described driving sprocket wheel.
Preferably, described cam mechanism also comprises spring bearing, and this spring bearing comprises upper ball cover 28 and the lower ball cover 29 that cooperatively interacts to fix described camshaft 20, and described lower ball cover 29 is fixed on the cylinder cap of described cylinder.
Because the camshaft 20 in cam mechanism of the present utility model together rotates with driving sprocket wheel, therefore, this cam mechanism also comprises that spring bearing carrys out rotatably supporting cam wheel axle 20.Due to relative rotation occurring between camshaft 20 and spring bearing, so more preferably, on described lower ball cover 29, be provided with lower ball cover oil duct 291.This lower ball cover oil duct 291 can be inputted separately lubricant oil, also can be communicated with other grease channels of cylinder, with to being lubricated between spring bearing and camshaft 20.
More than introduced according to the cam mechanism of the cylinder of the utility model preferred implementation.Because this cam mechanism comprises the adjustable cam that can in axial direction move along camshaft, be therefore conventionally provided with control mechanism supportingly and in axial direction move to control this adjustable cam.In prior art any one can be used in control adjustable cam motion control mechanism can with the utility model in cam mechanism support the use, the utility model is not limited this.
The utility model also provides a kind of cylinder, and wherein, this cylinder comprises cam mechanism described in the utility model.
The utility model also provides a kind of automobile, and wherein, this automobile comprises cylinder described in the 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 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 (10)
1. a cam mechanism for cylinder, is characterized in that, this cam mechanism comprises
Camshaft (20), is formed with outer helical teeth guiding groove (201) on this camshaft (20), one end of described camshaft (20) is provided with driving sprocket wheel, and this driving sprocket wheel drives rotation by engine crankshaft;
Adjustable cam (21), this adjustable cam is enclosed within on described camshaft (20), and on the inner peripheral surface of described adjustable cam (21), be provided with interior helical teeth guiding groove (211), this interior helical teeth guiding groove (211) cooperatively interacts so that described adjustable cam (21) moves with respect to described camshaft (20) along described outer helical teeth guiding groove (201) with described outer helical teeth guiding groove (201).
2. cam mechanism according to claim 1, is characterized in that, described cam mechanism also comprises flexible restoring organ, and this flexible restoring organ is arranged on the side that described adjustable cam (21) was gone up and be positioned to described camshaft (20).
3. cam mechanism according to claim 2, is characterized in that, described flexible restoring organ comprises:
Returning axle sleeve (23), it is upper that this returning axle sleeve (23) is enclosed within described camshaft (20) regularly, and in the sidewall of described returning axle sleeve (23), be formed with the duct of in axial direction extending;
Elastic supporting member for supporting optical member, this elastic supporting member for supporting optical member is arranged in described duct and from described returning axle sleeve (23) and stretches out described returning axle sleeve (23) towards a side of described adjustable cam (21);
Reset bearing (24), this reset bearing (24) is enclosed within described camshaft (20) above and in axial direction relatively described camshaft (20) motion, the end in contact that the first side of described reset bearing (24) and described elastic supporting member for supporting optical member stretch out, on the second side, be provided with ball bearing, this second side contacts with described adjustable cam (21).
4. cam mechanism according to claim 3, is characterized in that, described stationary cam (22) is arranged on the side away from described adjustable cam (21) of described returning axle sleeve (23).
5. cam mechanism according to claim 4, it is characterized in that, described stationary cam (22) and described returning axle sleeve (23) are permanently connected together or form, and described stationary cam (22) and described returning axle sleeve (23) are all connected on described camshaft (21) by the mode of interference fit.
6. cam mechanism according to claim 3, it is characterized in that, described elastic supporting member for supporting optical member comprises ball (25), Returnning spring (26) and the tappet (27) being successively set in described duct, one end of described Returnning spring (26) is connected with described ball (25), the other end is connected with described tappet (27), the external part of described tappet (27) reaches outside described returning axle sleeve (23) from described duct
On the first side of described reset bearing (24), be provided with the locating slot corresponding with described tappet (27), the external part of described tappet (27) is engaged in the locating slot of described reset bearing (24).
7. cam mechanism according to claim 6, is characterized in that, described tappet (27) is hollow tube.
8. cam mechanism according to claim 6, it is characterized in that, the inside of described camshaft (20) is formed with the Oil Guide chamber (202) of extending vertically, one end sealing of described camshaft (20), the other end is formed with oil diverting port (203), and this oil diverting port (203) is communicated with this Oil Guide chamber (202), is provided with camshaft oil outlet (204) on described camshaft (20), this camshaft oil outlet (204) is communicated with described Oil Guide chamber (202)
On the internal surface of described returning axle sleeve (23), be formed with returning axle sleeve oil groove (231), this returning axle sleeve oil groove (231) and described camshaft oil outlet (204) arrange accordingly, are formed with the returning axle sleeve oilhole (232) corresponding with described ball (25) in described duct on the internal surface of described returning axle sleeve oil groove (231).
9. cam mechanism according to claim 1, it is characterized in that, described cam mechanism also comprises spring bearing, this spring bearing comprises upper ball cover (28) and the lower ball cover (29) that cooperatively interacts to fix described camshaft (20), and described lower ball cover (29) is fixed on the cylinder cap of described cylinder.
10. cam mechanism according to claim 9, is characterized in that, is provided with lower ball cover oil duct (291) on described lower ball cover (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152925.3U CN203856526U (en) | 2014-03-31 | 2014-03-31 | Cam mechanism of engine cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152925.3U CN203856526U (en) | 2014-03-31 | 2014-03-31 | Cam mechanism of engine cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856526U true CN203856526U (en) | 2014-10-01 |
Family
ID=51606385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420152925.3U Expired - Fee Related CN203856526U (en) | 2014-03-31 | 2014-03-31 | Cam mechanism of engine cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233592A (en) * | 2014-10-13 | 2014-12-24 | 湖州现代纺织机械有限公司 | Cam regulation mechanism |
-
2014
- 2014-03-31 CN CN201420152925.3U patent/CN203856526U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233592A (en) * | 2014-10-13 | 2014-12-24 | 湖州现代纺织机械有限公司 | Cam regulation mechanism |
| CN104233592B (en) * | 2014-10-13 | 2016-05-11 | 湖州现代纺织机械有限公司 | One cam adjustment mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203856525U (en) | Cam structure of engine cylinder | |
| CN105569756B (en) | Arranged on top of diesel engine single camshaft drives Valve Rocker Organization | |
| CN107580649A (en) | Rocker arm assembly in the valve mechanism of the cylinder head of internal combustion engine | |
| US8726864B2 (en) | Engine that actively varies compression expansion ratio | |
| CN203856526U (en) | Cam mechanism of engine cylinder | |
| CN102052111A (en) | Variable valve device for internal combustion engine | |
| CN102032084A (en) | High-pressure common rail pump for small high-speed diesel engine | |
| CN108798818B (en) | Valve mechanism and engine system | |
| CN103982263B (en) | A kind of VVT | |
| CN100504052C (en) | Rotating straight axle four-stroke piston engine device | |
| CN204312152U (en) | Vehicle and the distribution device for motor thereof and the lining for distribution device | |
| CN205559001U (en) | Valve mechanism for motorcycle engine | |
| CN107131022B (en) | Variable valve timing device | |
| CN204419355U (en) | Axially liquidate piston tubular actuated by cams formula five two-stroke engine | |
| CN204041141U (en) | Cylinder and the transfer bar mechanism for its cam mechanism | |
| CN109519248B (en) | Electric control valve mechanism, engine and automobile | |
| CN103939202B (en) | A kind of reciprocating rotary piston-mode motor | |
| CN103790669B (en) | For the valve actuating mechanism of engine and the vehicle with it | |
| CN107701255B (en) | Valve early-closing rocker arm mechanism and engine | |
| CN106437927A (en) | Rotary net type valve timing mechanism | |
| CN207701191U (en) | A kind of continuous variable valve timing driving device | |
| CN2557706Y (en) | Rolling seal for internal combustion engine cylinder and piston | |
| CN103912331A (en) | Variable valve timing system, engine and vehicle | |
| CN103758604B (en) | Gas distributing mechanism for engine and car with same | |
| CN204312150U (en) | For the supporting base of distribution device, distribution device, motor and vehicle |
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: 20141001 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |