Fuel systems for gas turbine engines

Details Fuel systems for gas turbine engines Fuel systems for gas turbine engines

1978-03-22

1980-05-06

Croyle, Carlton R.

Power plants

Combustion products used as motive fluid

With safety device

60 3909D, 210132, 210186, 210340, F02G 300

Patent

active

042010446

ABSTRACT:
A fuel system is provided with two filters between the L.P. pump and the H.P. pump, both of which are used (in parallel) when the temperature of the L.P. fuel is above 0.degree. C. When the temperature of the fuel drops below 0.degree. C., all the L.P. fuel is passed through the first filter, and a small supply of warm H.P. fuel is passed through the second filter. Ice collects in the first filter until a predetermined pressure drop across it causes all the L.P. fuel flow to be switched to the second filter. The first filter is then de-iced by a small supply of warm H.P. fuel. This cycle is repeated continuously while the temperature of the L.P. fuel is below 0.degree. C.

REFERENCES:
patent: 2670082 (1954-02-01), Dunn et al.
patent: 2729338 (1956-01-01), Heigl
patent: 3394813 (1968-07-01), Phillips et al.
patent: 4033870 (1977-07-01), Parquet et al.
patent: 4073136 (1978-02-01), Symon

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