Circulation structure for a turbo compressor

F - Mech Eng,Light,Heat,Weapons – 04 – D

Patent

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Details

F04D 27/02 (2006.01) F04D 29/68 (2006.01)

Patent

CA 2716417

The invention relates to a circulation structure for a turbo compressor, in particular for a compressor of a gas turbine, comprising at least one annular chamber (26) that can be traversed in a circumferential direction, is concentric with a shaft of the turbo compressor in the region of the free blade ends of a blade ring (24) and radially borders a main flow channel (22). According to the invention, several chambers (27) that can be traversed in an axial direction are situated upstream of the or each annular chamber (26), when viewed from the main flow direction of the main flow channel (22).

L'invention concerne une structure d'écoulement pour un turbocompresseur, en particulier pour un compresseur d'une turbine à gaz, comprenant au moins une chambre annulaire (26) parcourue par un flux en direction périphérique, qui est disposée concentriquement par rapport à un axe du turbocompresseur, dans la zone des extrémités libres des aubes d'une couronne d'aubes (24) et qui est radialement adjacente à un canal d'écoulement principal (22). L'invention est caractérisée en ce que plusieurs chambres (27) parcourues par un flux en direction axiale sont positionnées en amont, en considérant le sens d'écoulement principal du canal d'écoulement principal (22), des chambres annulaires ou de chaque chambre annulaire (26).

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