Diffuser for fluid impelling device

Details Diffuser for fluid impelling device Diffuser for fluid impelling device

1979-06-08

1982-02-16

Smith, Leonard E.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Pump outlet or casing portion expands in downstream direction

415177, 415209, 415DIG1, 138 37, F01D 900

Patent

active

043157157

ABSTRACT:
A diffuser for a fluid impelling device such as a radial or axial turbine, comprising outer and inner casing members radially spaced apart from each other and thereby forming therebetween a diffuser chamber having annular cross-section which gradually increases in area toward the gas outlet end of the diffuser, wherein a flow throttling element is provided or the inner casing member is shaped to have a flow throttling portion so that the diffuser chamber is throttled at the gas outlet end for precluding separation of gas flow from an inner surface of the outer casing member.

REFERENCES:
patent: 2702986 (1955-03-01), Kadosch et al.
patent: 2735612 (1956-02-01), Hausmann
patent: 3552877 (1971-01-01), Christ et al.
patent: 4083180 (1978-04-01), Thompson et al.

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