Valve timing control device
US5794577A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1997 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Jul 11, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2102
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve timing control device has a rotor fixed on a cam shaft of an engine and a housing member ratably mounted on the cam shaft. The housing member surrounds the rotor. A chamber defined between the housing member and the rotor has a pair of circumferentially opposed walls. A vane is mounted on the rotor and extends outwardly therefrom in the radial direction into the chamber so as to divide the chamber into a first pressure chamber and a second pressure chamber. A plate spring is inserted between the rotor and the vane and a fluid supplying device supplies fluid under pressure to at least a selected one of the first pressure chamber and the second pressure chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.