Fastener for multi-stage compressor

Details Fastener for multi-stage compressor Fastener for multi-stage compressor

1990-09-12

1994-03-29

Kwon, John T.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Vane or deflector

415134, F04D 2960

Patent

active

052979326

ABSTRACT:
The stator case for the compressor of a gas turbine engine is tied to the outer full hoop case by a spool/bolt assembly where the spool carries flange-like elements bearing against both cases and always being in compression and the bolt includes a relatively long shaft extending through the outer case to tie it to the spool which is threaded to bosses formed on the stator case for providing sufficient support during an engine surge while having good fatigue life characteristics. The threads of the bolt and spool are sized differently to assure that the bolt loosens before the spool.

REFERENCES:
patent: 2497049 (1950-02-01), Soderberg
patent: 2843357 (1958-07-01), Spindler, Jr.
patent: 2863634 (1958-12-01), Chamberlin et al.
patent: 3362160 (1968-01-01), Bourgeois
patent: 4330234 (1982-05-01), Colley
patent: 4529355 (1985-07-01), Wilkinson

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