Apparatus for preventing entry of foreign objects into aircraft

Details Apparatus for preventing entry of foreign objects into aircraft Apparatus for preventing entry of foreign objects into aircraft

1979-10-01

1981-04-14

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

With safety device

415121G, 55306, F02C 7052

Patent

active

042611687

ABSTRACT:
An apparatus is designed for preventing entry of foreign objects into an aircraft power plant. The apparatus comprises a rotor kinematically associated with a drive. The rotor is disposed in a duct between an air intake and an engine, and has a center body with radial blades secured thereon. The blades are installed at an angle to the plane which is square with the longitudinal axis of the rotor. The apparatus has a foreign object collection chamber with an opening for entry of foreign objects, disposed in front of the blades in the direction of air flow.
The blades are installed relative to one another with an angular pitch determined from the equation: ##EQU1## where .phi. is the angular pitch of blades;

REFERENCES:
patent: 3362155 (1968-01-01), Driscoll
patent: 3720045 (1973-03-01), Murphy
patent: 3979903 (1976-09-01), Hull et al.

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