Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Anti-eccentric-wear roller type hydraulic tappet valve rocker arm combined device

A technology of hydraulic tappets and valve rocker arms, which is applied in the direction of valve devices, engine components, machines/engines, etc., and can solve the problem of partial wear of valves and valve seat rings, non-fixed contact points between rocker arm pressure heads and valve bridges, etc. The valve cannot move up and down completely, so as to reduce the turning force and the horizontal pulling force

Pending Publication Date: 2021-06-15
GUANGXI YUCHAI MASCH CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The valve rocker arm combination device of the prior art has the following defects: since the valve rocker arm is centered on the rocker arm axis, the rocker arm is the tangential up and down movement of the radius R, that is, the non-vertical up and down movement, resulting in the rocker arm pressure head The point of contact with the valve bridge is not fixed
like image 3 As shown, when the rocker arm angles are A1 and A2, the contact point between the pressure head and the valve bridge will have a distance of a1-a2. The throwing force further acts on the valve stem, causing the valve not to be completely vertically stressed, and also dragged by the front and rear of the valve bridge, which eventually causes the valve to not move vertically up and down completely, resulting in the front and back of the valve valve and the valve seat ring. Severe partial wear

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anti-eccentric-wear roller type hydraulic tappet valve rocker arm combined device
  • Anti-eccentric-wear roller type hydraulic tappet valve rocker arm combined device
  • Anti-eccentric-wear roller type hydraulic tappet valve rocker arm combined device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0019] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0020] Such as Figure 1 to Figure 2 As shown, according to a preferred embodiment of the present invention, a roller-type hydraulic tappet valve rocker assembly device for preventing partial wear mainly includes a rocker shaft 1, a valve rocker arm 2, a hydraulic tappet 3, a roller 4, and a valve bridge 5 and valve 6 and other components.

[0021] see figure 1 and figure 2 , in some embodiments, the valve rocker arm ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an anti-eccentric-wear roller type hydraulic tappet valve rocker arm combined device which comprises a rocker arm shaft, a valve rocker arm, a hydraulic tappet, a roller and a valve bridge. The rocker arm shaft is sleeved with the valve rocker arm, and the valve rocker arm can swing with the rocker arm shaft as the axis. The hydraulic tappet is arranged at the end part of the valve rocker arm and can move along with the valve rocker arm. The roller is arranged at the lower end part of the hydraulic tappet and can move along with the hydraulic tappet. The valve bridge is arranged below the hydraulic tappet, the top of the valve bridge is provided with a contact plane, and the roller abuts against the contact plane, so that the valve bridge can move along with the hydraulic tappet. According to the anti-eccentric-wear roller type hydraulic tappet valve rocker arm combined device, the problems of eccentric wear and overturning of a valve can be finally solved by improving the stress point change problem of the valve rocker arm and the valve bridge.

Description

technical field [0001] The invention relates to the field of valve rocker arm combination devices, in particular to a roller type hydraulic tappet valve rocker arm combination device for anti-eccentric wear. Background technique [0002] Such as image 3 As shown, in the prior art valve rocker arm combination device, the valve rocker arm is in contact with the valve bridge by a pressure head with a universal joint, and the contact surface of the valve bridge is plane. The valve rocker arm moves up and down, and the valve bridge also moves up and down with the valve rocker arm pressure head, and the valve bridge drives the valve to move up and down, thereby realizing the switch of the valve. [0003] The valve rocker arm combination device of the prior art has the following defects: since the valve rocker arm is centered on the rocker arm axis, the rocker arm is the tangential up and down movement of the radius R, that is, the non-vertical up and down movement, resulting in t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/26F01L1/16F01L1/18
CPCF01L1/16F01L1/181F01L1/26
Inventor 黄永全韦良锦
Owner GUANGXI YUCHAI MASCH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com