CN201517433U - Variable air valve mechanism of engine - Google Patents
Variable air valve mechanism of engine Download PDFInfo
- Publication number
- CN201517433U CN201517433U CN2009201289511U CN200920128951U CN201517433U CN 201517433 U CN201517433 U CN 201517433U CN 2009201289511 U CN2009201289511 U CN 2009201289511U CN 200920128951 U CN200920128951 U CN 200920128951U CN 201517433 U CN201517433 U CN 201517433U
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- Prior art keywords
- rocking arm
- cam
- oil
- rotor
- arm
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- Expired - Fee Related
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Abstract
The utility model discloses a variable air valve mechanism of an engine. The mechanism comprises a cam, wherein the cam is connected with an air valve through a rocker arm component which comprises an active roller arm, a driven roller arm and a roller arm shaft, the driven roller arm is formed by an inner rotor and an outer rotor, first axial blocks of the inner surface of the outer rotor are in staggered arrangement with second axial blocks of the outer surface of the inner rotor, clearances between a second axial block and an axial block which are adjacent form a first high pressure chamber and a second high pressure chamber, the first high pressure chambers are communicated with a first oil passing chamber through an oil passing hole on the inner rotor, the second high pressure chambers are communicated with a second oil passing chamber through the oil passing hole, the first oil passing chamber and the second oil passing chamber are respectively connected with two oil outlets of a three-way valve, and an oil inlet of the three-way valve is connected with an oil pump. By adopting the mechanism, the ratio of the roller arms can be adjusted as required and different requirements of the rotation rate of the engine to the air inflow are met. Meanwhile, the mechanism has the advantages of reasonable design, simple structure, easy manufacture and the like.
Description
Technical field
The utility model relates to the engine valve technical field, particularly a kind of variable valve mechanism for engine.
Background technique
Engine air valve device is the important component of motor, and it influences the air inflow of motor by the lift of valve, and then influences the power character of motor.And the lift of valve was both relevant to the ultimate range of basic circle with the cam external frame, and the rocking arm ratio with valve mechanism has close ties again, and when cam one timing, the lift of valve just depends on the rocking arm ratio fully.Traditional engine air valve device is made up of cam, rocker arm assembly and valve, and rocker arm assembly is single swing arm.Because the rocking arm ratio of conventional construction can not change or excursion is little, valve mechanism can only be realized one or more valve lifts like this, can not satisfy the different demands of all rotating speeds of motor to air inflow simultaneously, and then has reduced the power character of motor.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of variable valve mechanism for engine that can regulate the rocking arm ratio as required, to satisfy the different demands of all rotating speeds of motor to air inflow simultaneously.
The technical solution of the utility model is as follows: a kind of variable valve mechanism for engine, comprise cam, this cam links to each other with valve through rocker arm assembly, its key is: described rocker arm assembly comprises initiatively rocking arm, driven rocking arm and pitman arm shaft, wherein initiatively rocking arm one end kink is on pitman arm shaft, the other end of initiatively rocking arm contacts with cam, one side of this initiatively rocking arm and driven rocking arm clamping, this driven rocking arm is made up of internal rotor and external rotor, described internal rotor kink is on pitman arm shaft, external rotor is sleeved on the outside of internal rotor, seal ring by the external rotor both sides seals between the two, the second axial segments interlaced arrangement of first axial segments of described external rotor internal surface and internal rotor outer surface, space between adjacent second axial segments and first axial segments forms first, two hyperbaric chambers, wherein the oil-through hole of first hyperbaric chamber on internal rotor communicates with the first logical oil pocket, second hyperbaric chamber communicates with the second logical oil pocket through described oil-through hole, described first, two logical oil pockets are distributed in the pitman arm shaft vertically, first, two logical oil pockets link to each other with two oil outlets of three-way valve respectively, and the filler opening of this three-way valve links to each other with oil pump.
The utility model is on the basis of conventional construction, make rocker arm assembly into present initiatively rocking arm by original single rocking arm, driven rocking arm and pitman arm shaft, wherein driven rocking arm is made up of internal rotor and external rotor, the second axial segments interlaced arrangement of first axial segments of described external rotor internal surface and internal rotor outer surface, space between adjacent second axial segments and first axial segments forms first, two hyperbaric chambers, wherein first hyperbaric chamber communicates with the first logical oil pocket, second hyperbaric chamber communicates with the second logical oil pocket, described first, two logical oil pockets link to each other with two oil outlets of three-way valve respectively, and the filler opening of three-way valve links to each other with oil pump.The utility model pumps into three-way valve by oil pump with high pressure oil, and two oil outlets by three-way valve pump into first and second logical oil pocket again.Regulate three-way valve according to required air inflow, change the relative pressure between first and second hyperbaric chamber, thereby the angle between internal rotor and the external rotor is changed, after satisfying pre-provisioning request, with the three-way valve locking, pressure in this moment driven rocking arm between first and second hyperbaric chamber is just consistent, and driven rocking arm just becomes a rigid parts, just transmitted load reliably.Above structure changes angle between initiatively rocking arm and driven rocking arm by changing angle between internal rotor and external rotor, and then changes rocking arm ratio of the present utility model, to satisfy the different demands of all rotating speeds of motor to air inflow simultaneously.
Described initiatively rocking arm is made of rocker body, installation sleeve and draw-in groove, wherein rocker body is fixed on the outside of installation sleeve, and draw-in groove is arranged on the side of installation sleeve, initiatively rocking arm through this installation sleeve kink on pitman arm shaft; rocker body contacts with cam, and this draw-in groove cooperates with driving pin clamping on the internal rotor.The internal rotor of described driven rocking arm is followed initiatively rocking arm and is rotated together under the drive of initiatively rocking arm, and not only clamping is firm, and simple in structure, make easily.
Away from an end of installation sleeve rolling bearing is installed in described rocker body, rocker body contacts with cam through this rolling bearing.Above structure can effectively reduce the wearing and tearing of rocker body and cam, can guarantee the working life of rocker body and cam on the one hand, can effectively avoid causing the irregular variation of valve lift on the other hand, and then guarantee accurate control air input of engine by air because of rocker body, cam wear.
Beneficial effect: the utility model can be regulated the rocking arm ratio as required, changes the lift of valve, and then satisfies the different demands of all rotating speeds of motor to air inflow, simultaneously, the utlity model has advantages such as reasonable in design, simple in structure, that making is easy.
Description of drawings
Fig. 1 is an assembling schematic representation of the present utility model.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is oil circuit figure of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model is made of cam 1, initiatively rocking arm 2, driven rocking arm 3, pitman arm shaft 4, valve 5, seal ring 6, first axial segments 7, second axial segments 8, first hyperbaric chamber 9, second hyperbaric chamber 10, three-way valve 11, oil pump 12, driving pin 13, rolling bearing 14 and rotating dog 15, its cam 1 links to each other with valve 5 through rocker arm assembly, the structure of cam 1 and valve 5 is same as the prior art, does not give unnecessary details at this.Described rocker arm assembly comprises initiatively rocking arm 2, driven rocking arm 3 and pitman arm shaft 4, wherein initiatively rocking arm 2 is made of rocker body 2a, installation sleeve 2b and draw-in groove 2c; rocker body 2a is fixed on the outside of installation sleeve 2b; by rotating dog 15 rolling bearing 14 is installed away from the end of installation sleeve 2b at rocker body 2a; this rolling bearing 14 is a needle bearing; rocker body 2a contacts with cam 1 through described rolling bearing 14, and installation sleeve 2b kink is on pitman arm shaft 4, and draw-in groove 2c is arranged on the side of installation sleeve 2b.Described driven rocking arm 3 is made up of internal rotor 3a and external rotor 3b, driving pin 13 on the internal rotor 3a cooperates with draw-in groove 2c clamping, internal rotor 3a kink is on pitman arm shaft 4, and external rotor 3b is sleeved on the outside of internal rotor 3a, and the seal ring 6 by external rotor 3b both sides seals between the two.First axial segments 7 of external rotor 3b internal surface and second axial segments, 8 interlaced arrangement of internal rotor 3a outer surface, space between adjacent second axial segments 8 and first axial segments 7 forms first hyperbaric chamber 9 and second hyperbaric chamber 10, wherein the oil-through hole of first hyperbaric chamber 9 on internal rotor 3a communicates with the first logical oil pocket 4a, and second hyperbaric chamber 10 communicates with the second logical oil pocket 4b through described oil-through hole.Described first and second logical oil pocket 4a, 4b are distributed in the pitman arm shaft 4 vertically, first and second logical oil pocket 4a, 4b link to each other with two oil outlets of three-way valve 11 respectively, the filler opening of this three-way valve 11 links to each other with oil pump 12, and oil pump 12 can be substituted by motor according to actual needs.
Claims (3)
1. variable valve mechanism for engine, comprise cam (1), this cam (1) links to each other with valve (5) through rocker arm assembly, it is characterized in that: described rocker arm assembly comprises initiatively rocking arm (2), driven rocking arm (3) and pitman arm shaft (4), wherein initiatively rocking arm (2) one end kinks are on pitman arm shaft (4), the other end of initiatively rocking arm (2) contacts with cam (1), one side of this initiatively rocking arm (2) and driven rocking arm (3) clamping, this driven rocking arm (3) is made up of internal rotor (3a) and external rotor (3b), described internal rotor (3a) kink is on pitman arm shaft (4), external rotor (3b) is sleeved on the outside of internal rotor (3a), seal ring (6) by external rotor (3b) both sides seals between the two, second axial segments (8) interlaced arrangement of first axial segments (7) of described external rotor (3b) internal surface and internal rotor (3a) outer surface, space between adjacent second axial segments (8) and first axial segments (7) forms first, two hyperbaric chambers (9,10), wherein the oil-through hole of first hyperbaric chamber (9) on internal rotor (3a) communicates with the first logical oil pocket (4a), second hyperbaric chamber (10) communicates with the second logical oil pocket (4b) through described oil-through hole, described first, two logical oil pocket (4a, 4b) be distributed in vertically in the pitman arm shaft (4), first, two logical oil pocket (4a, 4b) link to each other with two oil outlets of three-way valve (11) respectively, the filler opening of this three-way valve (11) links to each other with oil pump (12).
2. variable valve mechanism for engine according to claim 1, it is characterized in that: described initiatively rocking arm (2) is made of rocker body (2a), installation sleeve (2b) and draw-in groove (2c), wherein rocker body (2a) is fixed on the outside of installation sleeve (2b), draw-in groove (2c) is arranged on the side of installation sleeve (2b), initiatively rocking arm (2) through this installation sleeve (2b) kink on pitman arm shaft (4); rocker body (2a) contacts with cam (1), and this draw-in groove (2c) cooperates with driving pin (13) clamping on the internal rotor (3a).
3. variable valve mechanism for engine according to claim 2 is characterized in that: away from an end of installation sleeve (2b) rolling bearing (14) is installed in described rocker body (2a), rocker body (2a) contacts with cam (1) through this rolling bearing (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201289511U CN201517433U (en) | 2009-09-22 | 2009-09-22 | Variable air valve mechanism of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201289511U CN201517433U (en) | 2009-09-22 | 2009-09-22 | Variable air valve mechanism of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517433U true CN201517433U (en) | 2010-06-30 |
Family
ID=42498155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201289511U Expired - Fee Related CN201517433U (en) | 2009-09-22 | 2009-09-22 | Variable air valve mechanism of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174490A (en) * | 2013-04-01 | 2013-06-26 | 天津大学 | Hydraulic pressure variable valve device based on rotor control |
-
2009
- 2009-09-22 CN CN2009201289511U patent/CN201517433U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174490A (en) * | 2013-04-01 | 2013-06-26 | 天津大学 | Hydraulic pressure variable valve device based on rotor control |
| CN103174490B (en) * | 2013-04-01 | 2014-10-22 | 天津大学 | Hydraulic pressure variable valve device based on rotor control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING XIAOKANG AUTOMOBILE GROUP CO., LTD. Free format text: FORMER OWNER: CHONGQING XIAOKANG AUTOMOBILE INDUSTRY (GROUP) CO., LTD. Effective date: 20110330 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 400033 NO. 2, JINGXI ROAD, JINGKOU TOWN, SHAPINGBA DISTRICT, CHONGQING CITY TO: 400037 NO. 61-1, JINQIAO ROAD, SHAPINGBA DISTRICT, CHONGQING CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110330 Address after: 400037 No. 61-1 Jinqiao Road, Shapingba District, Chongqing Patentee after: Chongqing Sokon Automobile Group Co., Ltd. Address before: 400033, No. 2 ho Xi Road, wellhead Town, Shapingba District, Chongqing Patentee before: Chongqing Xiaokang Automotive Industry (Group) Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING SOKON INDUSTRIAL GROUP CO., LTD. Free format text: FORMER NAME: CHONGQING SOKON AUTOMOBILE GROUP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 400037 No. 61-1 Jinqiao Road, Shapingba District, Chongqing Patentee after: Chongqing Xiaokang Industry Group Co., Ltd. Address before: 400037 No. 61-1 Jinqiao Road, Shapingba District, Chongqing Patentee before: Chongqing Sokon Automobile Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20160922 |