Valve assembly for draining oil, moisture, or water from a gas turbine engine
US8567174B2 · kind B2 · utility
1Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2006 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Jun 30, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/602
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve assembly is provided for a gas turbine engine with at least two drain valves connected to the gas turbine engine to drain oil and moisture from the engine, an actuator for opening and closing the at least two drain valves, a solenoid valve connected to the actuator and to a regulated air supply for driving the actuator and a safety valve connected to an exhaust of the solenoid valve and to a compressor air supply, the compressor air supply driving the safety valve to prevent the actuator from being vented during engine operation. A method of securely operating a plurality of drain valves is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.