Desmodromic valve designs for improved operation smoothness, stability and package space
US6505590B1 · kind B1 · utility
7Cited by
10References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2001 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Aug 10, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L1/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A desmodromic drive (30) for imparting reciprocal translation to a valve (32) has a cam ring (52) that rotates about an axis (42), a follower (50) that reciprocates with axial motion as the ring rotates, an endless cam track (69) on the ring, and rollers (76, 78) on the follower that ride along the cam track as the ring rotates. A follower guide (48) guides the follower for axial. Rollers (60, 62) constrain the follower against rotation on the follower guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.