Unlock instant, AI-driven research and patent intelligence for your innovation.

Anti-rotational circlip

A circlip, end face technology, applied in the directions of plungers, connecting members, cylindrical pistons, etc., can solve the problem of unresolved problems such as accidental disengagement of the circlips that limit the rotation of the circlips

Active Publication Date: 2016-06-22
CATERPILLAR INC
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, G.B. Patent No. 359,836 does not address the problem of limiting the rotation of the circlip to limit wear or accidental disengagement of the circlip

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-rotational circlip
  • Anti-rotational circlip
  • Anti-rotational circlip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The specific terminology used in the following description is for convenience only and is not limiting. The words "right", "left", "lower" and "upper" indicate directions in the drawings to which reference is made. The words "inner" or "far" and "outer" or "proximal" denote directions toward and away from, respectively, the geometric center of the piston assembly and / or circlip and its associated parts. The terms include the words listed above, their derivatives and words of similar meaning.

[0017] refer to figure 1 and 2 , the piston assembly 100 includes a piston 102 , a piston pin 106 , and at least one snap ring 108 supported by the piston 102 and further supporting the piston pin 106 . For example, the at least one clip 108 may include a pair of clips, such as a first clip 108a and a second clip 108b. The piston assembly 100 may also include a connecting rod 104 supported by the piston pin 106 at a location between the first and second snap rings 108a, 108b. ...

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

In one aspect, a circlip includes a circlip body defining (i) a first end surface, (ii) a second end surface spaced circumferentially from the first end surface so as to define a gap between the first and second end surfaces, and (iii) an outer curved surface defining an outer perimeter of the circlip body. The outer curved surface extends from the first end surface to the second end surface. Further, the circlip includes at least one row of teeth defined at the outer curved surface, and extending from at least one of the first and second end surfaces circumferentially along a direction away from the gap. When installed in a circlip groove, the teeth engage the circlip groove to limit rotation of the circlip within the groove.

Description

technical field [0001] The present invention relates to mechanical fasteners, and more particularly to circlips used, for example, in engine piston assemblies. Background technique [0002] In at least some internal combustion engines, a piston pin is used to connect the connecting rod to the piston. When installed, the piston pin extends through the sleeve on the connecting rod such that the first and second ends of the piston protrude from opposite sides of the sleeve. The first end of the piston is positioned within the first pin boss on the first side of the piston, and the second end of the piston is positioned within the second pin boss on the second side of the piston. Typically, the piston is coupled to the first and second pin bosses in one of three different configurations. In a first configuration, the piston pin is rotatable and axially fixed to the boss. In this "fixed pin" configuration, the connecting rod is allowed to rotate about the piston pin, but the p...

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): F16B21/18F16J1/16
CPCF16B21/183F16J1/16F16B2/243F02F3/0015F16B2/005
Inventor T·鲍曼
Owner CATERPILLAR INC