Heat activated valve system
US7578270B2 · kind B2 · utility
2Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2007 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Apr 13, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2820/01
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electronically actuated valve assembly for an internal combustion engine is disclosed, wherein the valve assembly comprises a valve stem, a shape memory alloy actuator in operative communication with the valve stem, a coolant passage through which at least a portion of the shape memory alloy actuator extends, and a cooling fluid source in communication with the coolant passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.