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

Novel valve guide pipe structure

A valve guide, a new type of technology, applied in the direction of lift valves, engine components, machines/engines, etc., can solve the problems such as the increase of the side force moment of the valve guide, the fracture failure of the valve guide assembly seam, the swing impact of the valve guide, etc., to achieve Reduces fretting wear, enhances bending stiffness, and releases thermal deformation

Inactive Publication Date: 2018-08-17
CHINA NORTH ENGINE INST TIANJIN
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the normal, stable and reliable reciprocating movement of the valve, the length of the valve guide remains unchanged, the proportion of the assembly length of the valve guide to the total length of the guide decreases, and the height of the valve guide protruding from the assembly notch accounts for the proportion of the total length of the guide increases, so that the side load of the valve guide The large increase in the force moment will easily cause the valve guide to be impacted by the swing of the valve, and fracture and failure will occur at the valve guide assembly seam

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
  • Novel valve guide pipe structure
  • Novel valve guide pipe structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0020] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more....

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 provides a novel valve guide pipe structure. The novel valve guide pipe structure comprises a valve guide pipe body, the middle of the valve guide pipe body is provided with a guide pipehole, the middle of the outer side of the valve guide pipe body is provided with an assembling rabbet, the position, on the upper side of the assembling rabbet, of the outer side of the valve guide pipe body is circumferentially provided with a plurality of stepped bosses, and the assembling rabbet is provided with a groove inwards in the circumferential direction. The novel valve guide pipe structure has the beneficial effects of being suitable for an air cylinder cover compact in structure, high in reliability and capable of being popularized to other high power density engine air cylindercovers.

Description

technical field [0001] The invention belongs to the technical field of valve guides, and in particular relates to a novel valve guide structure. Background technique [0002] The valve guide is used as the guide cylinder for the reciprocating movement of the valve, which is used to control the direction of the valve movement and ensure the sealing between the valve and the valve seat. At the same time, the surface of the valve guide is in contact with the valve to conduct heat and dissipate part of the heat from the valve. The valve guide usually works under the condition of semi-dry friction, bears the side pressure caused by the action of the cam, and has a high working temperature, so it is easy to wear and break. At present, the materials of traditional engine valve guides include cast iron, powder metallurgy, copper, etc., and are interference-fitted on the cylinder head. % to 80%, and the height of the valve guide protruding from the assembly stop accounts for 15% to ...

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): F01L3/08
CPCF01L3/08
Inventor 卫军朝王艳丽张丽熊毕伟辛花袁小帅强慧
Owner CHINA NORTH ENGINE INST TIANJIN
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