Variable camshaft timing system
US4862845A · kind A · utility
20Cited by
6References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | May 10, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L1/348
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A phase shift device utilized for the camshaft sprockets in a chain control device for an engine having separate camshafts for intake and exhaust valves in an internal combustion engine. A device supporting one or a pair of idler sprockets is shiftable, either pivotally or longitudinally to vary the chain path between a driving and a driven camshaft sprocket in such a way as to vary the phase of the driven sprocket relative to the driving sprocket. This device comprises a bracket which carries at least one idler sprocket and is either pivotally or longitudinally shiftable to vary the phase thus facilitating proper chain control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.