Elephant's foot adjusting screw assembly for internal combustion engine
US5542315A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 21, 1994 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Jun 21, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2151
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A sliding friction- and wear-resistant elephant's foot or swivel pad adjusting screw assembly for contacting an actuating member interface in an internal combustion engine is provided to transmit arcuate motion into reciprocal motion. The assembly includes a metal screw element configured to move along an arcuate path in a correspondingly configured socket in a ceramic pad element. A retainer element secures the pad element to the screw element loosely to allow this relative motion. The ceramic pad element includes a planar contact face for contacting a corresponding planar contact surface on an internal combustion engine actuating member, such as a valve, a valve crosshead or a unit fuel injector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.