Compressor flow fence

Details Compressor flow fence Compressor flow fence

1988-09-07

1989-12-05

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

415157, 415166, 415181, 415914, F04D 2702

Patent

active

048849448

ABSTRACT:
A flow fence for a turbo fan jet engine, as taught by Stein et al. in U.S. Pat. No. 3,841,790, is modified by the provision of serrations about its internal circumference. Thus, when the modified flow fence is inserted into or removed from the flow field, a more gradual transition occurs in the flow thereby improving surge margins.

REFERENCES:
patent: 2861774 (1958-11-01), Buchi
patent: 3841790 (1974-10-01), Stein et al.
patent: 3904309 (1975-09-01), Keetley
patent: 4023350 (1977-05-01), Hovan et al.
patent: 4067661 (1978-01-01), Gebhart et al.
patent: 4086022 (1978-04-01), Freeman et al.
patent: 4363596 (1982-12-01), Watson et al.
patent: 4383798 (1983-05-01), Schucker
patent: 4387563 (1983-06-01), Bell, III
patent: 4389158 (1983-06-01), Nakanishi
patent: 4431374 (1984-02-01), Benstein et al.
patent: 4586870 (1986-05-01), Hohlweg et al.
patent: 4688986 (1987-08-01), Schucker
patent: 4802817 (1989-02-01), Tyler

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