Diffuser device in a centrifugal compressor and method for manuf

Details Diffuser device in a centrifugal compressor and method for manuf Diffuser device in a centrifugal compressor and method for manuf

1982-01-28

1988-09-13

Scott, Samuel

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

415 46, 415164, 415211, F04D 2700

Patent

active

047706058

ABSTRACT:
A diffuser device disposed in a passageway between an air outlet of an impeller and a swirl chamber within a casing in a centrifugal compressor, is formed as divided into a diffuser disc capable of being fixed to a casing and a plurality of blades adapted to be arranged along the circumferential direction of the diffuser disc, and the respective diffuser blades have their one ends fitted in fitting bores drilled in the diffuser disc as arrayed along the circumferential direction as many as the diffuser blades so as to be freely rotatable about the axes of the fitting bores, whereby a blade angle is made variable. Also, a method for assembing such a diffuser device in a desired adjusted condition and a ganged drive mechanism for the diffuser blades for bringing the blade angles of the plurality of diffuser blades simultaneously into a desired adjusted condition are disclosed.

REFERENCES:
patent: 1604328 (1926-10-01), Walker
patent: 3243159 (1966-03-01), Hefler
patent: 3667860 (1972-06-01), Endress et al.
patent: 3799694 (1974-03-01), Duzan
patent: 3963369 (1976-06-01), Balje
patent: 4242040 (1980-12-01), Swearingen
patent: 4302149 (1981-11-01), Smale
patent: 4378194 (1983-03-01), Bandukwalla

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