Patent ID: 7648331
Filing Date: 2010-01-19
Classification: F04D,F05D,Y10S

Abstract:
1. An apparatus for blowing air into a flow channel, which carries a main flow between a compressor wheel and a manifold cavity of a radial compressor, comprising at least one blowing-in opening which is arranged along a circumference of the flow channel and aligned tangentially with respect to a compressor housing wall of the compressor wheel, and which is provided with a Coanda structure and is in the form of a nozzle, and through which air can be blown in the tangential direction of the compressor housing wall into the flow channel between rotor blades of the compressor wheel and guide vanes of a diffusor, wherein in the compressor housing wall at least one extraction opening is incorporated in the area of the manifold cavity, and wherein the at least one blowing-in opening is connected via a channel to the at least one extraction opening.