Turbomachine

Details Turbomachine Turbomachine

F - Mech Eng,Light,Heat,Weapons

04

D

230/132

F04D 29/28 (2006.01) F01D 5/04 (2006.01)

Patent

CA 1136592

TURBOMACHINE Abstract of the Disclosure A turbomachine, operable as a compressor or a turbine, for a compressible fluid is provided which includes a wheel having a plurality of vanes extending from a generally axial flow section to a generally radial flow section. Adjacent vanes define fluid passageways having a generally axially oriented section and a generally radially oriented section. Located substantially within the generally radially oriented sections of a predetermined number of passageways is a reference station which has a configuration such that the mean tangential dimension of said passageway at said reference station is no more than about 60% of the circum- ference of the rotor at that mean radius divided by the number of vanes at that radius. Each reference station serves to effect substantial attachment of the flowing fluid to the surfaces defining said passageway, particularly at low mass flow, and, thus, broaden the usable flow range of the turbomachine. A rounded vane end at the wheel periphery further serves to enhance said attachment.

334500

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