Dual actuator air turbine starter valve
US6684898B2 · kind B2 · utility
35Cited by
34References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2001 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Mar 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0525
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An air turbine starter valve able to open despite being frozen shut. Dual actuators apply sufficient torque upon an air turbine starter valve to overcome obstructions presented by frozen moisture. By applying separate and generally-aligned torques, the actuators are able to provide sufficient force to overcome the adhesion provided by frozen moisture between the valve plate and adjacent structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.