Compressor diffuser and method

Details Compressor diffuser and method Compressor diffuser and method

F - Mech Eng,Light,Heat,Weapons

04

D

230/131

F04D 29/44 (2006.01) F04D 21/00 (2006.01)

Patent

CA 1172223

ABSTRACT The invention relates to an improved diffuser for fluid flow compressors which utilizes alternately swept diffuser vanes. The invention utilizes a diffuser vane having a highly swept leading edge of approximately 70° sweep. The vanes are made in two sets, one set having its leading edge extending from one diffuser wall toward the other, while the other set has its leading edge extend- ing from the opposite wall. These oppositely swept stator vanes are then alternately spaced about the diffuser and, importantly, extend into the transonic region of the diffuser space. The angle or direction of the swept portion of the diffuser vanes which lie in the transonic region of the diffuser space is arranged to maintain a desired negative angle of incidence across the width of the flow path.

375569

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