Variable vane height diffuser

Details Variable vane height diffuser Variable vane height diffuser

1989-04-04

1990-06-12

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Runner, shaft, or separate motor operated

415157, 4152112, F04D 1710

Patent

active

049328352

ABSTRACT:
A diffuser vane assembly for a centrifugal compressor includes movable vanes which are inserted or retracted from the diffuser passage through slots in one of the diffuser walls. The vane assembly is axially movable by an internally threaded drum and gear arrangement. A hand crank external to the compressor is effective to rotate the drum and thereby axially move the plate and attached vanes within the diffuser passage.

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CVM Centrifugal Compressors, 1987, Dresser-Rand.

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