Rotary compressor with stepped cover contour

Details Rotary compressor with stepped cover contour Rotary compressor with stepped cover contour

1992-07-20

1994-04-19

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having tangential inlet or outlet

415914, 416189, 416195, F04D 100

Patent

active

053040333

ABSTRACT:
A compressor assembly includes a housing, and a rotatable impeller within the housing which includes a hub and blades extending from the hub. A ring circumscribes the leading edge of the blades, and cooperates with a groove in the housing to define a clearance therebetween which is larger than the clearance between the connecting edge of the blades and a corresponding conforming portion of the housing. This permits free flow of gas around the ring to enhance the operating range of the compressor wheel. The ring also stiffens the blades, permitting the thickness of the hub to be reduced, thereby further enhancing the operating range of the compressor wheel.

REFERENCES:
patent: 996859 (1911-07-01), Keller
patent: 2827261 (1958-03-01), Parker et al.
patent: 3893787 (1975-07-01), Jones
patent: 3984193 (1976-10-01), Yu
patent: 4594052 (1986-06-01), Niskanen
patent: 4743161 (1988-05-01), Fisher et al.
Patent Abstracts of Japan Feb. 3, 1983 vol. 7, No. 95 (M-209)(1204) 21 Apr. 1983 & JP,A,58 18 600 (Mitsubishi).

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