Variable geometry compressor

Details Variable geometry compressor Variable geometry compressor

2004-11-08

2010-12-21

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Runner, shaft, or separate motor operated

C415S159000, C415S160000, C415S163000, C415S164000

Reexamination Certificate

active

07854585

ABSTRACT:
A variable geometry compressor for use in, for example, a turbocharger. A swing-vane diffuser is provided down-stream of the centrifugal compressor wheel. A nozzle ring is adjustable mounted on a center housing, and defines the nozzle face for the compressor diffuser. No spacers are deployed in the diffuser thereby improving efficiency, yet by stacking only the vanes and the nozzle ring, the diffuser clearances are maintained within strict tolerances. Further, seals, such as O-rings, are situated between the nozzle ring and the compressor housing and back plate to eliminate deleterious gas leaks between the diffuser and the spaces behind the nozzle ring.

REFERENCES:
patent: 3495921 (1970-02-01), Swearingen
patent: 3799694 (1974-03-01), Duzan
patent: 3992128 (1976-11-01), Lunsford et al.
patent: 4338063 (1982-07-01), Nakanishi
patent: 4657476 (1987-04-01), Berg
patent: 5146752 (1992-09-01), Bruestle
patent: 6506011 (2003-01-01), Sishtla
patent: 2002/0176774 (2002-11-01), Zinsmeyer et al.
PCT ISR/WO Honeywell.

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