Variable engine valve actuation system
US7506624B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2006 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Nov 11, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2107
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve actuation system for a power system is provided. The valve actuation system has an engine valve moveable to selectively prevent or allow a flow of fluid relative to the engine valve. The valve actuation system also has a cam assembly with a first cam lobe and a second cam lobe. The valve actuation system also has a cam follower with a first tappet protrusion and a second tappet protrusion. A selective rotation of the cam follower engages either the first tappet protrusion with the first cam lobe to move the engine valve through a first valve event, or the second tappet protrusion with the second cam lobe to move the engine valve through a second valve event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.