CENTRIFUGAL COMPRESSOR CURVED DIFFUSING PASSAGE PORTION

CENTRIFUGAL COMPRESSOR CURVED DIFFUSING PASSAGE PORTION

A diffuser (42) for a centrifugal compressor (18) including an annular diffuser housing (20) having a plurality of diffuser flow passages (22) therethrough the housing (20). Each passage (22) including a throat portion (28) and a diffusing section (99) with upstream and downstream diffusing portions...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MACRORIE, MICHAEL, MILLER, DAVID PAUL, PARKER, DAVID VICKERY, SMYTHE, CAITLIN JEANNE
Format: Patent
Sprache:eng ; fre
Schlagworte:
AIR INTAKES FOR JET-PROPULSION PLANTS
BLASTING
COMBUSTION ENGINES
CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
ENGINE PLANTS IN GENERAL
GAS-TURBINE PLANTS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
STEAM ENGINES
WEAPONS
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Beschreibung
Zusammenfassung:A diffuser (42) for a centrifugal compressor (18) including an annular diffuser housing (20) having a plurality of diffuser flow passages (22) therethrough the housing (20). Each passage (22) including a throat portion (28) and a diffusing section (99) with upstream and downstream diffusing portions (102, 104). A diffusing passage centerline (108) includes a linear portion (120) extending downstream through the throat portion (28) and the upstream diffusing portion (102) and a curved portion (122) of the diffusing passage centerline (108) extending downstream from the centerline linear portion (120) through the downstream diffusing portion (104). The diffuser flow passages (22) may have an equivalent cone angle (CA2) varying non-linearly or more particularly curvilinearly downstream along curved portion (122). The downstream diffusing portion (104) may be flared.