F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
60/184
F02B 61/04 (2006.01) F02C 9/18 (2006.01) F04D 27/02 (2006.01)
Patent
CA 1116419
D-3041 C-3111 Abstract of the Disclosure A gas turbine engine control for regu- lating bleed from a compressor which has an engine performance map that is compressor stall stable when the ambient inlet air temperature of the engine exceeds a predetermined level and including a compressor bleed valve having a servo controlled pressure diaphragm operated poppet valve therein that is operative to bleed valve from the compressor in accordance with compressor discharge pressure conditions to extend the stall limits of operation of the compressor during engine start and low power or ground idle operation and wherein the bleed valve is associated with a thermally responsive solenoid valve controlled by a thermal switch responsive to ambient inlet air and supported on the inlet of the compressor at a point beyond the influence of engine generated heat for imposing an override pressure on the bleed valve to hold it in a closed position to prevent engine compressor bleed thereby to avoid engine power depreciation at ambient inlet air temperatures above the predetermined level.
345908
General Motors Corporation
Gowling Lafleur Henderson Llp
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