CN204511551U - A kind of engine valve bridge construction - Google Patents
A kind of engine valve bridge construction Download PDFInfo
- Publication number
- CN204511551U CN204511551U CN201520180605.3U CN201520180605U CN204511551U CN 204511551 U CN204511551 U CN 204511551U CN 201520180605 U CN201520180605 U CN 201520180605U CN 204511551 U CN204511551 U CN 204511551U
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- groove
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- type projection
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Abstract
The utility model relates to a kind of engine valve bridge construction, includes air valve bridge body, and the same surface of described air valve bridge body is provided with two circular grooves; Be respectively the first groove and the second groove; The first ball-type is provided with protruding in the bottom of the first groove; The second ball-type is provided with protruding in the bottom of the second groove; The center of the first ball-type projection does not overlap with the center of the first groove; The center of the second ball-type projection does not overlap with the center of the second groove.When valve stem is arranged on after in groove, certain gap is had between valve stem and groove, in engine working process, movement each other can be produced between air valve bridge and valve stem, the center of the frictional force produced in moving process is not or not the center of valve stem, this frictional force provides the moment that valve stem rotates, and coordinates corresponding valve collet that valve stem just can be made to rotate.
Description
Technical field
The utility model belongs to engines distribution construction applications, specifically refers to a kind of engine valve bridge construction.
Background technique
Air valve bridge is generally as the key components and parts in single-cam axial-cam engine intake and exhaust mechanism assembly.The function of air valve bridge is two valves of the same name that the motion transmitted by cam and active force are averagely allocated to same cylinder, ensures that two valves can open and close simultaneously, and general air valve bridge is used for single-cam axial-cam engine.
At present, air valve bridge is all made up of the circular groove on air valve bridge body and air valve bridge body and long waist shaped groove.All flat shape or the middle arc-shaped convex protruded in the bottom of circular groove or long waist shaped groove.The air valve bridge of this kind of structure can only provide the to-and-fro motion of prolonging on valve axial direction to valve.And in fact cam or rocking arm, in the movement process driving air valve bridge, except being applied to the power of valve along valve axial direction, also have the component perpendicular to valve axial direction, current air valve bridge design, this part component just wastes with frictional work.
Model utility content
The purpose of this utility model is to provide a kind of novel air valve bridge, by this air valve bridge structure, except providing except axial force to valve, also provides the moment driving valve rotation.
The utility model is achieved through the following technical solutions:
A kind of engine valve bridge construction, includes air valve bridge body, the same surface of described air valve bridge body is provided with two circular grooves; Be respectively the first groove and the second groove;
The first ball-type is provided with protruding in the bottom of described first groove; The second ball-type is provided with protruding in the bottom of described second groove;
The center of described first ball-type projection does not overlap with the center of described first groove; The center of described second ball-type projection does not overlap with the center of described second groove.
The center of described first ball-type projection and the line of centres of described first groove, perpendicular to the movement locus of rocking arm and air valve bridge point of contact.
The center of described second ball-type projection and the line of centres of described second groove, perpendicular to the movement locus of rocking arm and air valve bridge point of contact.
The distance at the center of described first ball-type projection and the center of described first groove is the 1/2-4/5 of described first groove radius length.
The distance at the center of described second ball-type projection and the center of described second groove is the 1/2-4/5 of described second groove radius length.
Being centrally located at of described first ball-type projection, on the line at the center of described first groove and the center of described second groove or, on the elongation line of the line at the center of described first groove and the center of described second groove.
Being centrally located at of described second ball-type projection, on the line at the center of described first groove and the center of described second groove or, on the elongation line of the line at the center of described first groove and the center of described second groove.
The diameter of described first ball-type projection is identical with the diameter of described second ball-type projection.
The beneficial effects of the utility model are:
By the technological scheme of the application, ball-type projection will be set in two circular grooves, and the structural design that the center of ball-type projection does not overlap with the center of circular groove, when valve stem is arranged on after in groove, certain gap is had between valve stem and groove, in engine working process, movement each other can be produced between air valve bridge and valve stem, the center of the frictional force produced in moving process is not or not the center of valve stem, this frictional force provides the moment that valve stem rotates, coordinate corresponding valve collet that valve stem just can be made to rotate, by the rotation of valve stem, the even wearing of valve stem can be made, avoid occurring valve eccentric wear.
Accompanying drawing explanation
Fig. 1 is the utility model engine intake valve bridge construction schematic diagram;
Fig. 2 is the utility model engine charge raft of pontoons schematic cross-section;
Fig. 3 is that the utility model engine charge raft of pontoons and valve stem assemble schematic diagram;
Fig. 4 is the utility model engine air-intake structure schematic diagram.
Description of reference numerals
1 air valve bridge body, 2 first grooves, 3 second grooves, 4 first ball-types are protruding, and 5 second ball-types are protruding, the movement locus of 6 rocking arms and air valve bridge point of contact, the center of 7 first ball-type projections and the line of centres of the first groove, the center of 8 second ball-type projections and the line of centres of the second groove, the center of 9 first grooves, the center of 10 second grooves, the center of 11 first ball-type projections, the center of 12 second ball-type projections, 13 valve stems, 14 rocking arms.
Embodiment
Describe the technical solution of the utility model in detail by the following examples, following embodiment is only exemplary, only can be used for explaining and the technical solution of the utility model being described, and can not be interpreted as being the restriction to technical solutions of the utility model.
The utility model provides a kind of engine valve bridge construction, as shown in Figures 1 to 4, includes air valve bridge body 1, and the same surface of described air valve bridge body 1 is provided with two circular grooves; Be respectively the first groove 2 and the second groove 3; The surface relative with surface, the second groove 3 place at air valve bridge body 1 and the first groove 2 is rocking arm 14 surface of contact.In working order, rocking arm 14 is being what change with air valve bridge point of contact, and the movement locus 6 of rocking arm and air valve bridge point of contact is a straight line, and this straight line is not parallel with the line at the center 10 of the second groove with the center 9 of the first groove or overlap or vertical.
In the embodiment of the application, first groove 2 and the second groove 3 are circular groove, and in other embodiment of the application, a groove in the first groove 2 and the second groove 3 is non-circular slot, but oval-shaped groove, such structure is the error for ensureing when mounted.
The bottom of described first groove 2 is provided with the first ball-type projection 4; The bottom of described second groove 3 is provided with the second ball-type projection 5; In the present embodiment, the diameter of the first ball-type projection 4 is identical with the diameter of the second ball-type projection 5.In other embodiment of the application, the diameter of the first ball-type projection 4 can not be identical with the diameter of the second ball-type projection 5, but the diameter being preferably the first ball-type projection 4 is identical with the diameter of the second ball-type projection 5.As for the situation that diameter and the diameter of the second ball-type projection of the first ball-type projection can not be identical, the axial motion distance of valve stem of the same name can be caused to have difference, and the rotational speed of valve stem of the same name also can difference to some extent, at this moment need to required by having during timing system adjustment.
The center 11 of described first ball-type projection does not overlap with the center 9 of described first groove; The center 11 of described first ball-type projection is positioned at, on the line at the center 9 of the first groove and the center 10 of the second groove or, on the elongation line of the line at the center 9 of the first groove and the center 10 of the second groove.Center 11 and the distance at the center 9 of described first groove of described first ball-type projection are the 1/2-4/5 of described first groove 2 radius length.
The center 12 of described second ball-type projection does not overlap with the center 10 of described second groove; The center 12 of described second ball-type projection is positioned at, on the line at the center 9 of the first groove and the center 10 of the second groove or, on the elongation line of the line at the center 9 of the first groove and the center 10 of the second groove.Center 12 and the distance at the center 10 of described second groove of described second ball-type projection are the 1/2-4/5 of described second groove 3 radius length.
The described center of the first ball-type projection and the line of centres 7 of the first groove, perpendicular to the movement locus 6 of rocking arm and air valve bridge point of contact.
The described center of the second ball-type projection and the line of centres 8 of the second groove, perpendicular to the movement locus 6 of rocking arm and air valve bridge point of contact.
When valve stem 13 is arranged on after in groove, because the existence of ball-type projection, certain gap is had between valve stem 13 and groove, in engine working process, movement each other can be produced between air valve bridge and valve stem, the center of the frictional force produced in moving process is not or not the center of valve stem, this frictional force provides the moment that valve stem rotates, coordinate corresponding valve collet that valve stem just can be made to rotate, by the rotation of valve stem, the even wearing of valve stem can be made, avoid occurring valve eccentric wear.
The air valve bridge structure of this structure is simple, does not need special valve rotating mechanism just can realize the rotation of valve.
Although described the technological scheme of the application, those skilled in the art, under the enlightenment of the technological scheme of the application, can carry out improving, replace or being out of shape, and such improvement, replacement or distortion all should in the protection domains of the application.
Claims (8)
1. an engine valve bridge construction, is characterized in that: include air valve bridge body, and the same surface of described air valve bridge body is provided with two circular grooves; Be respectively the first groove and the second groove;
The first ball-type is provided with protruding in the bottom of described first groove; The second ball-type is provided with protruding in the bottom of described second groove;
The center of described first ball-type projection does not overlap with the center of described first groove; The center of described second ball-type projection does not overlap with the center of described second groove.
2. engine valve bridge construction according to claim 1, is characterized in that: the center of described first ball-type projection and the line of centres of described first groove, perpendicular to the movement locus of rocking arm and air valve bridge point of contact.
3. engine valve bridge construction according to claim 1, is characterized in that: the center of described second ball-type projection and the line of centres of described second groove, perpendicular to the movement locus of rocking arm and air valve bridge point of contact.
4. engine valve bridge construction according to claim 1, is characterized in that: the distance at the center of described first ball-type projection and the center of described first groove is the 1/2-4/5 of described first groove radius length.
5. engine valve bridge construction according to claim 1, is characterized in that: the distance at the center of described second ball-type projection and the center of described second groove is the 1/2-4/5 of described second groove radius length.
6. engine valve bridge construction according to claim 1, it is characterized in that: being centrally located at of described first ball-type projection, on the line at the center of described first groove and the center of described second groove or, on the elongation line of the line at the center of described first groove and the center of described second groove.
7. engine valve bridge construction according to claim 1, it is characterized in that: being centrally located at of described second ball-type projection, on the line at the center of described first groove and the center of described second groove or, on the elongation line of the line at the center of described first groove and the center of described second groove.
8. engine valve bridge construction according to claim 1, is characterized in that: the diameter of described first ball-type projection is identical with the diameter of described second ball-type projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180605.3U CN204511551U (en) | 2015-03-27 | 2015-03-27 | A kind of engine valve bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180605.3U CN204511551U (en) | 2015-03-27 | 2015-03-27 | A kind of engine valve bridge construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511551U true CN204511551U (en) | 2015-07-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520180605.3U Withdrawn - After Issue CN204511551U (en) | 2015-03-27 | 2015-03-27 | A kind of engine valve bridge construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712385A (en) * | 2015-03-27 | 2015-06-17 | 安徽江淮汽车股份有限公司 | Engine valve bridge structure |
-
2015
- 2015-03-27 CN CN201520180605.3U patent/CN204511551U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712385A (en) * | 2015-03-27 | 2015-06-17 | 安徽江淮汽车股份有限公司 | Engine valve bridge structure |
| CN104712385B (en) * | 2015-03-27 | 2017-04-12 | 安徽江淮汽车集团股份有限公司 | Engine valve bridge structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20170412 |
|
| AV01 | Patent right actively abandoned |