Engine surge prevention system

Details Engine surge prevention system Engine surge prevention system

1984-03-19

1985-11-05

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

With safety device

60 3927, 60 3929, 602261, F02C 900

Patent

active

045505640

ABSTRACT:
A surge prevention system for a fan jet engine of an aircraft serves to manifest a signal whenever pressure distortions at the engine's inlet is calculated by judiciously located total pressure probes mounted downstream of the fan on the fan struts in the fan discharge duct. The engine's bleed valve is automatically opened to prevent surge and the fuel control's speed sensor is automatically reset to compensate for any loss of thrust. Safety switches are included to render the system inoperative whenever the aircraft is in the margin of stall and the reset feature is rendered inoperative for normal bleed open operating conditions.

REFERENCES:
patent: 2870632 (1959-01-01), Gaubatz
patent: 2870633 (1959-01-01), Harding et al.
patent: 3935558 (1976-01-01), Miller et al.
patent: 4130872 (1978-12-01), Harloff
patent: 4164033 (1979-08-01), Glennon et al.
patent: 4196472 (1980-04-01), Ludwig et al.

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