Power plants – Combustion products used as motive fluid – With safety device
Patent
1983-12-27
1986-04-15
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
With safety device
60 3929, F02C 700, F02C 900
Patent
active
045818886
ABSTRACT:
Nonrecoverable compressor rotating stall in a gas turbine engine is detected virtually at its onset by continuously calculating corrected engine speed and measuring the compressor pressure ratio. Associated with each corrected engine speed is a predetermined, empirically calculated critical pressure ratio. When the actual pressure ratio equals or falls below the critical pressure ratio a nonrecoverable stall has been detected and an output signal is generated which warns the pilot or automatically causes corrective action to be taken.
REFERENCES:
patent: 3849021 (1974-11-01), Eastman et al.
patent: 3867717 (1975-02-01), Moehring et al.
patent: 4117668 (1978-10-01), Elsaesser et al.
patent: 4164035 (1979-08-01), Glennon et al.
Sobey et al., Control of Aircraft and Missile Power Plants, Wiley and Sons, New York, 1963, pp. 32-33.
Kelly James B.
Schmitzer Charles W.
Casaregola Louis J.
Revis Stephen E.
United Technologies Corporation
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