Intake for a turbopropeller gas turbine engine

Details Intake for a turbopropeller gas turbine engine Intake for a turbopropeller gas turbine engine

1987-07-22

1989-01-10

Casaregola, Louis J.

Power plants

Reaction motor

Including counter rotating rotors

416129, 244 69, F02K 302

Patent

active

047964243

ABSTRACT:
The invention relates to intakes for turbopropeller gas turbine engines of the tractor type. A tractor turbopropeller gas turbine engine comprises a gas generator, an upstream propeller and a downstream propeller. The propellers are positioned upstream of the gas generator, and the propellers are driven via shaft means and gear means. An intake means supplies air to the gas generator, the intake means comprises an intake opening and an intake duct. The intake opening is positioned axially between the propellers, and a portion of the intake duct extends axially through the downstream propeller. This arrangement reduces the length of the shaft and the turbopropeller gas turbine engine, and reduces the weight accordingly. The intake opening is arranged to provide improved protection against ingestion of large foreign objects, such as birds, into the intake duct and gas generator.

REFERENCES:
patent: 2404716 (1946-07-01), Heppner
patent: 2681191 (1954-06-01), Elliot
patent: 3084889 (1963-04-01), Irbitis
patent: 3811791 (1974-05-01), Cotton

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