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US 11,346,366 B2Granted
Rotating diffuser in centrifugal compressor
AssigneeCarrier Corporation
InventorsMichael M. Joly, Xiaodan Cai, Chaitanya V. Halbe, William T. Cousins, Vishnu M. Sishtla
Life of this patent
Estimating the term…
Abstract
A centrifugal compressor includes a shaft defining an axis, an impeller mounted to the shaft for rotation about the axis, and a diffuser section including a first wall, a second wall, and an opening defined between the first wall and the second wall. The opening of the diffuser section is arranged in fluid communication with the impeller. The first wall is rotatable about the axis and rotation of the first wall about the axis is mechanically driven.
Claims16
A centrifugal compressor comprising:
- a shaft defining an axis;
- an impeller mounted to the shaft for rotation about the axis;
- a diffuser section including a first wall, a second wall, and an opening defined between the first wall and the second wall, the opening of the diffuser section being arranged in fluid communication with the impeller, wherein during operation of the centrifugal compressor, both a portion of the first wall and a portion of the second wall are configured to rotate about the axis relative to each other, rotation of the portion of the first wall about the axis being mechanically driven, wherein the portion of the first wall is rotatable about the axis at a first speed and the portion of the second wall is rotatable about the axis at a second speed, the first speed being different from the second speed.
A centrifugal compressor comprisinges:
- a shaft defining an axis;
- an impeller mounted to the shaft for rotation about the axis;
- a diffuser section including a first wall, a second wall, an opening defined between the first wall and the second wall, the opening of the diffuser section being arranged in fluid communication with the impeller, wherein during operation of the centrifugal compressor, both a portion of the first wall and the second wall are configured to rotate about the axis relative to each other, and rotation of the portion of the first wall about the axis is driven by engagement of a fluid flow within the opening and a surface of the first wall facing the opening, wherein the portion of the first wall is rotatable about the axis at a first speed and the second wall is rotatable about the axis at a second speed, the first speed being different from the second speed.
Dependencies are inferred from the claim text.