Patent ID: 7165935
Filing Date: 2007-01-23
Classification: F01D,F02C,F04D,F05D

Abstract:
1. An axial compressor for compressing air, said compressor comprising: a compressor inlet and a compressor outlet; a plurality of stages arranged one behind the other between the compressor inlet and the compressor outlet, each stage comprising at least one ring of rotor blades and one ring of stator vanes; and means for injecting water into an air stream entering the compressor inlet, for resulting in a wet compression; wherein there exists a first geometric configuration for each of the rotor blades and stator vanes of the compressor stages, which first geometric configuration is optimized for the compression of air without water injection; and wherein there exists a second geometric configuration for each of the rotor blades and stator vanes of the compressor stages, which second geometry differs from said first geometric configuration and is optimized for wet compression by compensating for the variations, caused by injected water, in the flow velocities of the medium flowing though the compressor; and wherein the rotor blades and stator vanes of the compressor stages comprise said second geometric configuration.