Wallace-murray Corporation

Kenneth F Kaiser

Wilbur A Spraker

An air supply system having a combustor whose output drives a turbine. The turbine drives a compressor part of whose output is fed to the combustor. A portion of the compressor output is bled off for utility usage. Instead of varying the fuel rate to the combustor to match varying demand in utility usage, the fuel rate is fixed. Operation of the system at air flows above and below that corresponding to the fixed fuel rate is accommodated by (1) a poppet relief valve which opens at high pressures and (2) a butterfly valve in the bleed (utility) line which rotates to decrease the bleed flow upon decrease in pressure.

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Indianapolis, IN, United States of America

Kenneth F Kaiser