CN201297189Y - Rocker arm assembly of four-air drain diesel engine - Google Patents
Rocker arm assembly of four-air drain diesel engine Download PDFInfo
- Publication number
- CN201297189Y CN201297189Y CNU2008202211666U CN200820221166U CN201297189Y CN 201297189 Y CN201297189 Y CN 201297189Y CN U2008202211666 U CNU2008202211666 U CN U2008202211666U CN 200820221166 U CN200820221166 U CN 200820221166U CN 201297189 Y CN201297189 Y CN 201297189Y
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- CN
- China
- Prior art keywords
- rocker arm
- valve
- component
- diesel engine
- air drain
- 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
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Abstract
The utility model discloses a rocker arm assembly of four-air drain diesel engine, comprising a rocker arm pedestal a rocker arm shaft, a rocker arm component, a rubber ball component and an air drain bridge blade, wherein the rocker arm component is arranged on the rocker arm shaft that is arranged on a screwed hole of the rocker arm pedestal by a bolt, the air drain bridge blade is arranged on an inlet valve or an exhaust valve, and the rubber ball component is mounted on the rocker arm component. The rubber ball component freely rotates in a certain included angel range so as to ensure that the bottom surface of the rubber ball component is horizontally contacted with the top plane of the air drain when the inlet valve or the exhaust valve is opened or closed. The rotary motion of the rocker arm is converted into the vertical motion of the ball head cushion block on the rubber ball head component by means of the rubber ball component, and two inlet valves or exhaust valves are opened and closed periodically according to the gas distribution under the action of air drain bridge serving as a bridge, so as to synchronously drive the four air drains and improve dynamic property, environmental conservation property and economical property of the engine.
Description
One, technical field
The utility model belongs to engine art, relates to a kind of four-valve diesel engine Rocker arm assembly device.
Two, background technique
In existing diesel engine Rocker arm assembly equipment mechanism, side-mounted camshaft four-valve diesel engine has two intake valves, two exhaust valves, normally carries out synchronous drive by the air valve bridge sheet, and this air valve bridge sheet has guiding device.Rocking arm drives the air valve bridge sheet, and the air valve bridge sheet moves along fixing guiding device, drives valve with this and is synchronized with the movement.Than higher, the stressed uncertainty of valve rocker causes guide structure to be subjected to lateral forces and to produce heavy wear and clamping stagnation to this device easily, makes the valve actuation can't proper functioning to air valve bridge sheet guiding centre positioning requirements.Because the four-valve diesel engine design oil sprayer rising structures that adopt adopt guiding device more, have limited the design of the fixed structure of oil sprayer, have increased the diesel engine design height virtually, strictness is limited in the compactness design of existing diesel.
Three, summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, reliable performance, four-valve diesel engine Rocker arm assembly device safe in utilization
The utility model is realized above-mentioned purpose by following technological scheme: four-valve diesel engine Rocker arm assembly device comprises pitman arm shaft 9, rocking arm preceding bearing 2, rocking arm rear support 8, resembles pin ball assembly 10, air valve bridge sheet 11 and by intake rocker 3, exhaust rocker arm 7, valve adjusting screw 4, the rocker arm assembly that nut 5 is formed is adjusted in the valve clearance, it is characterized in that: resemble pin ball assembly 10 and be pressed in the rocker arm assembly with certain magnitude of interference.Bearing 2, priming lever spring 6 before intake rocker 3, exhaust rocker arm 7, the rocking arm are installed on the pitman arm shaft 9,, Rocker arm assembly are fixed on the cylinder head with bolt 1 by the bolt hole on bearing 2, the rocking arm rear support 8 before pitman arm shaft 9 and the rocking arm.Fix, locate with priming lever spring 6 between intake rocker 3 and the exhaust rocker arm 7.Resemble pin ball assembly 10 by resembling the pin ball ball valve and resembling the pin ball ball seat and press-fit and form, press-fit the back and guarantee that ball seat can freely rotate flexibly, all the time contact with air valve bridge sheet 11 top levels maintenance faces in order to resemble pin ball ball seat horizontal plane in the process that guarantees valve opening, closes, reduce stress and concentrate, the while can drive two intake valves, double valve is synchronized with the movement.
Adopt the utility model can reach following beneficial effect: to realize under the situation that two valve rocker arm assembly structures seldom change, can effectively driving four air valve structures and be synchronized with the movement, satisfied more and more higher emission regulation demands.Fine overcoming the above problems: assemble simple and easy, compact structure, easy to process, valve actuation is rational in infrastructure.Pitman arm shaft, rocker arm bracket, valve adjuster are simple in structure, install, machining is convenient.Effectively reduce the diesel engine manufacture cost, produced very big economic benefit.
Four, description of drawings
Accompanying drawing is the utility model four-valve diesel engine Rocker arm assembly apparatus structure schematic representation.
Five, embodiment
As shown in drawings: four-valve diesel engine Rocker arm assembly device comprises pitman arm shaft 9, and bearing 2, rocking arm rear support 8 before the rocking arm are by intake rocker 3, exhaust rocker arm 7, valve adjusting screw 4, the rocker arm assembly that nut 5 is formed is adjusted in the valve clearance, resembles pin ball assembly 10, air valve bridge sheet 11 compositions such as grade.Resemble pin ball assembly 10 and be pressed into composition valve reciprocation driven unit in the rocker arm assembly with certain magnitude of interference, resembling pin ball assembly 10 is installed on intake rocker 3 and the exhaust rocker arm 7, resembling pin ball rotates flexibly by certain limit and resembles the pin ball ball seat in the process that guarantees valve opening, closes and contact with air valve bridge sheet 11 top planar horizontal, effectively reduce stress and concentrate two inlet and exhaust valves of air valve bridge sheet 11 synchronous drive.Priming lever spring 6 is installed between intake rocker 3 and the exhaust rocker arm 3 isolates and fixing intake and exhaust rocker arm assembly.Rocker arm support 2, valve reciprocation driven unit, priming lever spring 6, pitman arm shaft 9 are formed.Four-valve diesel engine Rocker arm assembly device is fixed on the cylinder head by rocker arm support 2 and pitman arm shaft 9 upper bolt holes with bolt 1.Form complete four-valve diesel engine Rocker arm assembly device.
During working state, camshaft is under the driving of bent axle, drive the upper and lower motion of tappet, push rod, thus make rocker arm assembly center on pitman arm shaft 9 drive resemble pin ball assembly 10, air valve bridge sheet 11 drives two intake valves and two exhaust valves open, cut out according to valve timing.
Claims (3)
1. four-valve diesel engine Rocker arm assembly device, comprise pitman arm shaft (9); bearing (2) before the rocking arm; rocking arm rear support (8); resemble pin ball assembly (10); air valve bridge sheet (11) and; exhaust rocker arm (7); valve adjusting screw (4); the rocker arm assembly that nut (5) is formed is adjusted in the valve clearance; it is characterized in that: resemble pin ball assembly (10) and be pressed in the rocker arm assembly with certain magnitude of interference; with intake rocker (3); exhaust rocker arm (7); bearing (2) before the rocking arm; rocking arm rear support (8) priming lever spring (6); bolt (1) is installed on the pitman arm shaft (9);, Rocker arm assembly is fixed on the cylinder head with bolt (1) by pitman arm shaft (9) and the preceding bearing (2) of rocking arm; the bolt hole on the rocking arm rear support (8) by intake rocker (3).
2. four-valve diesel engine Rocker arm assembly device according to claim 1 is characterized in that:, location fixing with priming lever spring (6) between intake rocker (3) and the exhaust rocker arm (7).
3. four-valve diesel engine Rocker arm assembly device according to claim 1, it is characterized in that: resemble pin ball assembly (10) by resembling the pin ball ball valve and resembling the pin ball ball seat and press-fit and form, press-fit the back and guarantee that ball seat can freely rotate flexibly, resemble pin ball ball seat horizontal plane and contact with air valve bridge sheet (11) top levels maintenance face all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202211666U CN201297189Y (en) | 2008-11-21 | 2008-11-21 | Rocker arm assembly of four-air drain diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202211666U CN201297189Y (en) | 2008-11-21 | 2008-11-21 | Rocker arm assembly of four-air drain diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297189Y true CN201297189Y (en) | 2009-08-26 |
Family
ID=41043169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202211666U Expired - Fee Related CN201297189Y (en) | 2008-11-21 | 2008-11-21 | Rocker arm assembly of four-air drain diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201297189Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306766A (en) * | 2012-03-12 | 2013-09-18 | 周登荣 | Cylinder cover exhaust structure for aerodynamic V-type multi-cylinder engine |
| CN107075987A (en) * | 2014-09-18 | 2017-08-18 | 伊顿(意大利)有限公司 | Rocker arm assembly for engine braking |
| CN107939467A (en) * | 2017-12-28 | 2018-04-20 | 潍柴动力股份有限公司 | Valve intake and exhaust rocker structure and diesel engine |
| CN113944525A (en) * | 2020-07-16 | 2022-01-18 | 发动机引擎解决方案知识产权股份有限公司 | System for engine |
-
2008
- 2008-11-21 CN CNU2008202211666U patent/CN201297189Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306766A (en) * | 2012-03-12 | 2013-09-18 | 周登荣 | Cylinder cover exhaust structure for aerodynamic V-type multi-cylinder engine |
| CN103306766B (en) * | 2012-03-12 | 2016-03-30 | 周登荣 | The head exhaust structure of aerodynamic force V-type multi-cylinder engine |
| CN107075987A (en) * | 2014-09-18 | 2017-08-18 | 伊顿(意大利)有限公司 | Rocker arm assembly for engine braking |
| CN107075987B (en) * | 2014-09-18 | 2020-06-23 | 伊顿(意大利)有限公司 | Rocker arm assembly for engine braking |
| US11225887B2 (en) | 2014-09-18 | 2022-01-18 | Eaton Intelligent Power Limited | Rocker arm assembly for engine braking |
| CN107939467A (en) * | 2017-12-28 | 2018-04-20 | 潍柴动力股份有限公司 | Valve intake and exhaust rocker structure and diesel engine |
| CN107939467B (en) * | 2017-12-28 | 2023-12-15 | 潍柴动力股份有限公司 | Valve air inlet and outlet rocker arm structure and diesel engine |
| CN113944525A (en) * | 2020-07-16 | 2022-01-18 | 发动机引擎解决方案知识产权股份有限公司 | System for engine |
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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: 20090826 Termination date: 20151121 |
|
| EXPY | Termination of patent right or utility model |