Hydraulic lash adjuster
US4815424A · kind A · utility
22Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1988 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Mar 11, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L1/2411
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulic lash adjuster which is mounted in a rocker arm of an internal combustion engine. The plunger of the lash adjuster has a socket formed therein which receives a cylindrical member having a ball end in contact with the socket and a flat surface engageable with a poppet valve of the engine. The ball and socket connection is lubricated by engine oil flowing from the leakdown clearance space between the plunger and the lash adjuster body through a passage which intersects the socket surface. The plunger and the cylindrical member are retained within the body by a single, dish-shaped member which is positioned over the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.