Turbomachine

Details Turbomachine Turbomachine

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 15/00 (2006.01) F04D 27/02 (2006.01) F04D 29/66 (2006.01) F04D 29/68 (2006.01)

Patent

CA 2107349

In a turbomachine having an impeller 1 rotating in a casing 3, means (nozzles 4) for forming an annular flow layer flowing along the inner surface of the casing 3 are provided. The annular flow layer is formed continuously or intermittently under control by detecting occurrence of unstable characteristics or a precursor thereof in the vicinity of a capacity range in which the head-capacity curve of the turbomachine shows positively-sloped, unstable characteristics.

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