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    MULTIPORT FLUID PUMP WITH RESERVE CAPACITY IMPELLER
    3.
    发明公开
    MULTIPORT FLUID PUMP WITH RESERVE CAPACITY IMPELLER 审中-公开

    公开(公告)号：US20240068481A1

    公开(公告)日：2024-02-29

    申请号：US17894388

    申请日：2022-08-24

    申请人： COOPER-STANDARD AUTOMOTIVE INC

    发明人： David S. Malone

    IPC分类号： F04D15/00 ,  F04B49/22

    CPC分类号： F04D15/0005 ,  F04B49/22

    摘要： An apparatus and process for distributing coolant fluid through first and second coolant loops comprising a pump having a first outlet port connected to the first coolant loop and a second outlet port connected to the second coolant loop and valve located in the pump housing switchable to direct coolant fluid to either the first or the second outlet port individually or to the first and second outlet ports concurrently. Coolant fluid is pumped by the pump at an unrestricted rate of flow is circulated through the first coolant loop at a rate of flow less than the unrestricted rate of flow when the valve connects the first outlet port to the first coolant loop and circulated through the second coolant loop at a rate of flow less than the unrestricted rate of flow when the valve connects the second outlet port to the second coolant loop. The coolant fluid is circulated through the first and the second coolant loops at a rate of flow less than the unrestricted rate of flow when the valve connects the first and the second outlet ports concurrently to the first and second coolant loops and which the rates of flow through the first and the second coolant loops jointly equal the unrestricted rate of flow.

    Multistage centrifugal pump
    5.
    发明授权
    Multistage centrifugal pump 有权

    公开(公告)号：US11788533B2

    公开(公告)日：2023-10-17

    申请号：US17853295

    申请日：2022-06-29

    申请人： Sulzer Management AG

    发明人： Marc Widmer ,  Daniele Cimmino

    IPC分类号： F04D1/10 ,  F04D1/06 ,  F04D15/00 ,  F04D27/02 ,  F04D29/22

    CPC分类号： F04D1/10 ,  F04D1/06 ,  F04D15/0005 ,  F04D27/023 ,  F04D27/0215 ,  F04D27/0238 ,  F04D29/2222

    摘要： A multistage centrifugal pump for conveying a fluid includes a pump housing with an inlet to receive the fluid and an outlet to discharge the fluid, a first stage impeller and a last stage impeller to convey the fluid from the inlet to the outlet, a shaft to rotate the first stage impeller and the last stage impeller about an axial direction, a suction chamber arranged upstream of the first stage impeller and in fluid communication with the inlet, a recirculation path for the fluid including a return opening and extending from the return opening to the suction chamber, the return opening located at or in the flow path downstream of the first stage impeller and upstream of the last stage impeller, and a flow control rod disposed in the recirculation path, the flow control rod to adjust a recirculation flow through the recirculation path into the suction chamber.

    COMPRESSOR ASSEMBLY INCLUDING A FLOW-RESTRICTING VALVE
    7.
    发明公开
    COMPRESSOR ASSEMBLY INCLUDING A FLOW-RESTRICTING VALVE 审中-公开

    公开(公告)号：US20230151818A1

    公开(公告)日：2023-05-18

    申请号：US17973043

    申请日：2022-10-25

    申请人： CARRIER CORPORATION

    发明人： Scott A. Nieforth ,  Vishnu M. Sishtla ,  Michael Bergin

    IPC分类号： F04D15/00 ,  F04D29/00

    CPC分类号： F04D15/0005 ,  F04D29/002

    摘要： An illustrative example embodiment of a compressor assembly includes a compressor housing having a suction inlet and a discharge outlet. A flow restricting valve allows unrestricted fluid flow in a first direction into the housing through the suction inlet and out of the discharge outlet during a first operating condition. The flow restricting valve allows a restricted fluid flow in a second, opposite direction into the housing through the discharge outlet in a second operating condition.