Air purging fuel valve for turbine engine

Details Air purging fuel valve for turbine engine Air purging fuel valve for turbine engine

1998-02-12

2000-04-18

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

With safety device

137112, F02C 7232

Patent

active

060500816

ABSTRACT:
An air purge/fuel valve for a turbine engine uses a spool configuration to provide both a more reliable check valve system preventing backflow into the fuel line or the air purge line and a mechanically positive prevention of simultaneous gas and air flow, together with the features of a pneumatically actuated valve in which an external pneumatic actuator positively moves the valve spool against possible resistance of the spool caused by minor coking.

REFERENCES:
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patent: 4041695 (1977-08-01), Harper et al.
patent: 4095418 (1978-06-01), Mansson et al.
patent: 4222405 (1980-09-01), Rosenblad
patent: 4359929 (1982-11-01), Stearns
patent: 4467957 (1984-08-01), Bucheit
patent: 4531587 (1985-07-01), Fineberg
patent: 4687055 (1987-08-01), Leggett
patent: 5346175 (1994-09-01), Hunnicutt
patent: 5391055 (1995-02-01), Carvalho

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