Lash adjustment means for valve gear of an internal combustion engine
US4228771A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1978 |
| Grant date | Oct 21, 1980 |
| Priority date | — |
| Expiry date | Feb 28, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L1/2405
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulic lash adjuster for valve gear of an internal combustion engine, the lash adjuster being of the type which operates from oil received under pressure from a gallery provided in the engine lubricant supply system. The body of the adjuster has a movable plunger with a one-way check valve for admitting and retaining oil in a chamber between the adjuster body and the plunger. A portion of the plunger includes a pivot surface for pivotally engaging associated components of the valve gear with a reservoir formed in the plunger which communicates with a one-way valve for admitting oil to the chamber. An inlet metering means including an annular metering land provides exclusive lubricant communication to the reservoir from an oil entry port in the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.