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US 2013/0280053 A1Published application
Axial compressor
AssigneeALSTOM Technology Ltd
InventorsMarco MICHELI, Wolfgang KAPPIS, Luis Federico PUERTA
Life of this patent
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Abstract
The axial compressor has a two-stage guide vane cascade at the discharge-side end of the rotor. The guide vanes of the second stage of the cascade are staggered in the circumferential direction in relation to the guide vanes of the first stage in such a way that vortex streamers created by the guide vanes of the first stage cannot impinge upon the guide vanes of the second stage.
Claims6
An axial compressor comprising:
- a rotor rotatably arranged in a casing, the rotor comprising:
- a plurality of rotor blade stages;
- a multistage guide vane cascade arranged in a stationary manner in the casing on a discharge side of a rotor-blade final stage of the rotor and which has axially arranged guide vane rows without axial overlapping;
- wherein the guide vanes of the guide vane cascade are at a distance by the same arcuate dimension from its guide vanes which are adjacent in the circumferential direction of the casing,
- and in that the axially following guide vane stage is arranged in each case in a circumferentially staggered manner in relation to the preceding guide vane stage in such a way that vortex streamers, which are created by the guide vanes of the preceding stage, flow through in each case between adjacent guide vanes of the following guide vane stage.
2 more elements
Dependencies are inferred from the claim text.