Device for boosting and bleeding a gas turbine engine

Details Device for boosting and bleeding a gas turbine engine Device for boosting and bleeding a gas turbine engine

1975-02-07

1976-06-22

Croyle, Carlton R.

Power plants

Reaction motor

Interrelated reaction motors

60 3923, 415 28, 415145, F02C 306, F02K 306

Patent

active

039642577

ABSTRACT:
A boost and bleed device for a gas turbine engine comprising a primary duct hrough which a primary gas flow passes, and containing a low-pressure compressor and a high-pressure compressor which are independent of one another, and a secondary duct through which a secondary airflow passes. A main duct places in communication with the secondary duct that primary duct section which is comprised between the low-pressure compressor and the high-pressure compressor. This duct may be closed off by two flaps each of which contains an opening which itself may be closed off by a plate. Thus, even when said flaps are closed, an auxiliary duct exists which places the primary duct in communication with the secondary duct. The main duct makes it possible to boost the high-pressure compressor during the starting phase. The auxiliary duct makes it possible to bleed the low-pressure compressor during the acceleration phase.

REFERENCES:
patent: 2958457 (1960-11-01), Fox et al.
patent: 3108767 (1963-10-01), Eltis et al.
patent: 3638428 (1972-02-01), Shipley et al.
patent: 3688504 (1972-09-01), Hutchinson et al.

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