Gas separation – Aircraft anti-ingestion means
Patent
1983-11-16
1985-03-05
Lacey, David L.
Gas separation
Aircraft anti-ingestion means
55313, 55419, 244 53B, 60 39092, 137 151, B64C 2300, B01D 4516
Patent
active
045028753
ABSTRACT:
An air intake for a helicopter mounted gas turbine engine comprises two intake portions which comprises vortex separator panels. One panel is generally forward facing while the other is generally sideways facing. A panel is pivotally mounted between the separator panels so as to pivot between a first position in which it obturates the generally sideways facing panel and a second position in which it obturates neither of the separator panels. The arrangement is such that when the helicopter is in fast forward flight, the pressure of the ram air flow through the generally forward facing inlet panel causes the pivoted panel to pivot to the position in which it obturates the generally sideways facing inlet panel.
REFERENCES:
patent: 2699906 (1955-01-01), Lee et al.
patent: 3222863 (1965-12-01), Klees et al.
patent: 3483676 (1969-01-01), Sargisson
patent: 4291530 (1981-09-01), Ballard
patent: 4346860 (1982-08-01), Tedstone
Lacey David L.
Rolls-Royce Limited
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