Centering slot for internal combustion engine
US8973542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2012 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Nov 3, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2250/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve timing control device for an internal combustion engine. The valve timing control device includes a rotor connected to a camshaft and having a plurality of vanes. A stator is engaged with the rotor, and includes a plurality of webs. Pressure chambers are provided between each of the webs and vanes. A centering slot is provided on the stator and/or the rotor. A pressure medium control valve is disposed in one of the vanes of the rotor, and is configured to not only selectively lock and unlock the position of the rotor relative to the stator, but is also configured such that pressure medium in the pressure chambers is veritable through the centering slot and thereafter through the pressure medium control valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.