Variable geometry diffuser

Details Variable geometry diffuser Variable geometry diffuser

1990-10-31

1992-05-26

Kwon, John T.

Rotary kinetic fluid motors or pumps

Including casing part selectively movable relative to fixed...

415148, F04D 2940

Patent

active

051161974

ABSTRACT:
A system for stabilizing the flow of fluid in a variable capacity compressor having a diffuser, the capacity of which can be varied by changing the relative position of fixed diffuser surface and a movable diffuser surface. The system includes an annular push ring connected to the movable diffuser surface by a plurality of pins. The annular push ring is axially displaceable and rotatably fixed. Axial displacement of the annular push ring axially displaces the movable diffuser surface. The system also includes a drive ring mounted on a nozzle base plate for driving the annular push ring. The drive ring is axially displaceable and rotatable. Rotation of the drive ring axially displaces the drive ring, the push ring, and the movable diffuser surface.

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