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公开(公告)号：US11655825B2
公开(公告)日：2023-05-23
申请号：US17407489
申请日：2021-08-20
申请人： CARRIER CORPORATION
CPC分类号： F04D27/0246 , F04D27/0238 , F04D29/462 , F04D17/10
摘要： An illustrative example embodiment of a compressor includes an inlet defining an intake passage, a plurality of inlet guide vanes, an impeller, and a plurality of swirl nozzles. Fluid flow through the plurality of inlet guide vanes into the intake passage is selectively adjustable to control fluid flow through at least the portion of the intake passage downstream of the swirl nozzles. The impeller includes a plurality of blades and directs fluid from the intake passage toward an outlet. The swirl nozzles have outlets positioned downstream of the plurality of inlet guide vanes and upstream of the impeller. The swirl nozzles are configured to introduce fluid into the intake passage to cause swirl of fluid in the intake passage between the plurality of inlet guide vanes and the impeller.
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公开(公告)号：US11965514B2
公开(公告)日：2024-04-23
申请号：US17622941
申请日：2020-07-20
申请人： Carrier Corporation
CPC分类号： F04D17/025 , F04D19/024 , F04D25/02 , F04D29/321 , F04D29/284 , F05D2210/14 , F05D2250/51
摘要： A refrigerant compressor assembly (20A, 20B, 20C) includes an axial compressor (22B, 22C, 22) that includes at least one axial stage. A downstream compressor (24) is located fluidly downstream of the axial compressor (22B, 22C, 22) and includes one of a mixed-flow impeller (46) or a centrifugal impeller (96). At least one motor (26, 27) is in driving engagement with at least one of the axial compressor (22B, 22C, 22) and the downstream compressor (24).
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公开(公告)号：US11555502B1
公开(公告)日：2023-01-17
申请号：US17401528
申请日：2021-08-13
申请人： CARRIER CORPORATION
IPC分类号： F04D27/00 , F02C6/12 , F04D29/56 , F04D27/02 , F04D29/46 , F02C7/042 , F04D15/00 , F04D29/42
摘要： An illustrative example embodiment of a compressor includes an inlet defining an intake passage, a plurality of lateral inlet guide vanes in the intake passage, and a plurality of medial inlet guide vanes in the intake passage. The lateral guide vanes are selectively oriented to alter an amount of fluid flow through a first, lateral portion of the intake passage. The medial inlet guide vanes are selectively oriented to alter an amount of fluid flow through a second, medial portion of the intake passage.
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公开(公告)号：US11499569B2
公开(公告)日：2022-11-15
申请号：US17254328
申请日：2020-06-16
申请人： Carrier Corporation
摘要： A compressor includes a housing. An impeller is located within the housing and rotatable about an impeller axis in a first rotational direction. A rotor section is rotatable about the impeller axis in a second rotational direction opposite the first rotational direction.
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公开(公告)号：US20220228593A1
公开(公告)日：2022-07-21
申请号：US17622941
申请日：2020-07-20
申请人： Carrier Corporation
摘要： A refrigerant compressor assembly (20A, 20B, 20C) includes an axial compressor (22B, 22C, 22) that includes at least one axial stage. A downstream compressor (24) is located fluidly downstream of the axial compressor (22B, 22C, 22) and includes one of a mixed-flow impeller (46) or a centrifugal impeller (96). At least one motor (26, 27) is in driving engagement with at least one of the axial compressor (22B, 22C, 22) and the downstream compressor (24).
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公开(公告)号：US20230151824A1
公开(公告)日：2023-05-18
申请号：US17973066
申请日：2022-10-25
申请人： CARRIER CORPORATION
CPC分类号： F04D29/444 , F04D17/06 , F04D25/0606
摘要： An illustrative example embodiment of a multistage compressor includes a first compressor stage, a second compressor stage downstream of the first compressor stage, and a motor section between the first compressor stage and the second compressor stage. The motor section includes a housing and a motor within the housing. A space between the motor and the housing establishes a flow path for fluid to flow from the first compressor stage to the second compressor stage. A plurality of ribs within the space have a curvature along at least a portion of a length of the ribs that changes a direction of fluid flow within the space such that the fluid flows downstream of the curvature in a direction parallel to a longitudinal axis of the housing.
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公开(公告)号：US11592034B2
公开(公告)日：2023-02-28
申请号：US17254333
申请日：2020-06-16
申请人： Carrier Corporation
摘要： A mixed-flow compressor includes an impeller attached to a shaft and rotatable about a shaft axis. A vaneless diffuser is located axially downstream of the impeller and has a converging portion and a diverging portion. A vaned diffuser is located axially downstream of the vaneless diffuser.
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公开(公告)号：US20220186746A1
公开(公告)日：2022-06-16
申请号：US17255913
申请日：2020-07-20
申请人： Carrier Corporation
摘要： A compressor including a casing and an impeller arranged within the casing. The impeller is rotatable about an axis. A diffuser section is arranged within the casing. The diffuser section is positioned downstream from an outlet of the impeller and includes a first set of vanes disposed circumferentially about the diffuser section and a second set of vanes disposed circumferentially about the diffuser section. At least one vane in the second set of vanes includes an aspiration slot.
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