Power plants – Combustion products used as motive fluid
Patent
1993-09-27
1995-01-31
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
60 3933, 134 221, 134 23, B08B 900
Patent
active
053850149
ABSTRACT:
The present invention provides a valve for preventing contamination of a fuel management system connected to a pneumatic sense line by closing communication of compressed air from a scroll of the engine through a passageway in the valve to the pneumatic circuitry of the fuel management system. A detent is located on one side of the valve for receiving a raised surface on the knob of the valve and for holding the valve in the open position. A pair of stops on a camming surface separately engage a second pin on the valve to stop a handle of the valve from rotating past the selected open or closed position. The valve has all metal surfaces isolated so it may withstand vibrations. A method of washing a compressor of an aircraft engine is disclosed.
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Aeronautical Accessories, Inc.
Bertsch Richard A.
Wicker William J.
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