High area ratio, variable entrance geometry compressor diffuser

Details High area ratio, variable entrance geometry compressor diffuser High area ratio, variable entrance geometry compressor diffuser

1984-02-06

1986-03-04

Look, Edward K.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

60 3929, F04D 2956

Patent

active

045738688

ABSTRACT:
Aerodynamically tapered spike is positioned for controlled axial movement in the conical portion of a composite gas turbine engine diffuser controlling engine air mass flow rate by adjusting diffuser area ratio. Also, a straight pipe transition diffuser portion is positioned between the conical portion and a flat plate diffuser portion to flatten the velocity profile.

REFERENCES:
patent: 2557435 (1951-06-01), Imbert
patent: 2930191 (1960-03-01), Schirmer et al.
patent: 2947139 (1960-08-01), Hausmann
patent: 2979892 (1961-04-01), Chamberland et al.
patent: 3045894 (1962-07-01), Ross
patent: 3123285 (1964-03-01), Lee
patent: 3745766 (1973-07-01), Melconian
patent: 4199934 (1980-04-01), Meyer
patent: 4202170 (1980-05-01), Meyer
patent: 4375939 (1983-03-01), Mount et al.

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