Electrostatically actuated gas valve
US7222639B2 · kind B2 · utility
8Cited by
107References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2004 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Aug 5, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87917
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas valve body with a first flow chamber and, a second flow chamber including and a main valve positioned in line and between the first flow chamber and the second flow chamber. The main valve can be opened by creating a pressure differential across the main valve. An electrostatically controlled pilot valve is provided for controlling the pressure differential across the main valve for “on-ff” operation. The electrostatically controlled pilot valve may also be operated to “modulate” the pressure differential across the main valve along a range of pressure differential values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.