Protective device for the prevention of the intake of foreign bodies by means of an engine

摘要

An improved deflector type of device for preventing suction of foreign matter into an air intake port of a gas turbine engine for an aircraft. The deflector is movable and by displacing said movable part to a desired position an intake air flow passageway of the engine can be varied. Thus, suction of foreign matter into a gas turbine engine during a flight under a freezing weather condition can be prevented without degrading air intake efficiency during a flight under a non-freezing environmental condition.