Turbomachine

Details Turbomachine Turbomachine

1996-07-16

1998-01-13

Kwon, John T.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Between blade edge and static part

415914, F01D 520

Patent

active

057072060

ABSTRACT:
A turbomachine having an impeller rotating within a casing of the machine and groove passages are formed in a wall of the casing between an upstream portion and a downstream portion of the impeller and high pressure fluid is injected into the groove passages for increasing the stall margin without lowering the peak efficiency of the machine and prevents generation of a positive slope in a head-capacity curve.

REFERENCES:
patent: 3365172 (1968-01-01), McDonough et al.
patent: 3462071 (1969-08-01), Garve
patent: 3887295 (1975-06-01), Yu
patent: 3893787 (1975-07-01), Jones
patent: 4063848 (1977-12-01), Wiggins et al.
patent: 4086022 (1978-04-01), Freeman et al.
patent: 4732531 (1988-03-01), Minoda et al.
patent: 5236301 (1993-08-01), Palmer
patent: 5246335 (1993-09-01), Mitsubori et al.
patent: 5282718 (1994-02-01), Koff et al.
patent: 5333990 (1994-08-01), Foerster et al.
patent: 5458457 (1995-10-01), Goto et al.
A Study of Configurations of Casing Treatment for Axial Flow Compressors, By Hideo Fujita and Hiroyuki Takata, Bulletin of JSME, vol. 27, No. 230 Aug. 1984.
Compressor Aerodynamics, By N.A. Cumpsty, copublished by Longman Scientific & Technical and John Wiley & Sons, Inc.
Technology of Controlling Stalling in Compressors, By Hiroyuki Takata, Text for the 181st Seminar of JSME Kansai Branch, May 16 and 17, 1991.
Patent Abstracts of Japan, Publication No. JP55035173; Publication date Mar. 12, 1980.

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