Gas turbine engine with improved compressor casing for permittin

Details Gas turbine engine with improved compressor casing for permittin Gas turbine engine with improved compressor casing for permittin

1976-09-07

1978-04-25

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

With sound or vibratory wave absorbing or preventing means...

415144, 415DIG1, F01D 526, F01D 2504, F04D 2968

Patent

active

040860221

ABSTRACT:
A plurality of skewed slots of a particular shape are provided within a compressor casing adjacent at least one stage of compressor blade tips, the slots having an axial length greater than that of the adjacent blade tips. The slots are provided such that upon occurrence of compressor surge or stall, the stagnating air occurring about the blade row may be directed by the slots downstream of the compressor blade row back into the main stream of fluid passing through the compressor. By such an arrangement, the slots provide a compressor in which the air flow and pressure ratio may be increased before reaching compressor stall or surge.

REFERENCES:
patent: 3620640 (1971-11-01), Lariviere
patent: 3893782 (1975-07-01), Pierpoline et al.
patent: 3934410 (1976-01-01), Williams

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