Compressor stabilizer
AssigneeABB Turbo Systems AG
InventorJanpeter KUEHNEL
Life of this patent
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Abstract
An annular circulation chamber is arranged in an interior of a compressor housing, which circulation chamber radially surrounds a main flow duct and extends from an intake region to an encircling circulation opening in a region of rotor blades of the compressor wheel. Between the circulation openings, the circulation chamber is delimited from the main flow duct by an annular contoured wall. The contoured wall is connected to the inner compressor housing by plural struts which are spaced apart from one another to different extents in the circumferential direction. As a result of the irregular distribution of the struts in the circumferential direction, generation of undesired vibration excitations can be reduced and/or eliminated.
Claims11
A compressor of an exhaust-gas turbocharger, comprising:
- a rotatably mounted compressor wheel;
- a main flow duct for supplying a medium for compression to the compressor wheel;
- and
- a circulation chamber, arranged radially outside the main flow duct and delimited from the main flow duct by a contoured wall, which extends from an intake region of the main flow duct to a circulation opening formed into the contoured wall in a region of rotor blades of the compressor wheel, with the contoured wall being fastened to a housing of the compressor by struts in the circulation chamber, wherein a spacing between struts in at least one pair of struts arranged adjacent to one another in the circulation chamber is different in a circumferential direction than a spacing between struts arranged adjacent to one another in other pairs of struts.
An exhaust-gas turbocharger having a compressor which comprises:
- a rotatably mounted compressor wheel;
- a main flow duct for supplying a medium for compression to the compressor wheel;
- and
- a circulation chamber, arranged radially outside the main flow duct and delimited from the main flow duct by a contoured wall, which extends from an intake region of the main flow duct to a circulation opening formed into the contoured wall in a region of rotor blades of the compressor wheel, with the contoured wall being fastened to a housing of the compressor by struts in the circulation chamber, wherein a spacing between struts in at least one pair of struts arranged adjacent to one another in the circulation chamber is different in a circumferential direction than a spacing between struts arranged adjacent to one another in other pairs of struts.
Dependencies are inferred from the claim text.