Deswirler system for centrifugal compressor

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

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F04D 29/44 (2006.01) F02C 3/08 (2006.01)

Patent

CA 2384017

A deswirler system for a centrifugal compressor of a gas turbine engine that improves overall engine performance as a result of exhibiting significantly reduced friction losses. The deswirler system generally entails an annular-shaped manifold (122) having an inlet configured to receive radially-outward flowing gas from a diffuser (116) of the compressor, an outlet configured to discharge the gas in an axial downstream direction, and an arcuate passage (124) therebetween. The deswirler system further includes a plurality of deswirler vanes (126, 136, 142, 150) directly within the arcuate passage (124) and closely coupled to the diffuser (116).

L'invention concerne un système d'aubage redresseur pour compresseur centrifuge de turbine à gaz, qui permet d'améliorer la performance globale de la turbine grâce à une réduction importante des pertes de charge par frottement. Le système d'aubage redesseur comporte généralement une tubulure (122) de forme annulaire qui présente un orifice d'admission conçu pour recevoir un gaz s'écoulant radialement vers l'extérieur à partir d'un diffuseur (116) du compresseur, un orifice de sortie conçu pour décharger le gaz en aval dans un sens axial, et un passage (124) arqué situé entre ceux-ci. Le système d'aubage redresseur comprend en outre plusieurs aubes redresseuses (126, 136, 142, 150) situées directement à l'intérieur du passage (124) arqué, et couplées étroitement au diffuseur (116).

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