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    MASS FLOW INTERPOLATION SYSTEMS AND METHODS FOR DYNAMIC COMPRESSORS
    3.
    发明申请
    MASS FLOW INTERPOLATION SYSTEMS AND METHODS FOR DYNAMIC COMPRESSORS 审中-公开

    公开(公告)号：WO2022231849A1

    公开(公告)日：2022-11-03

    申请号：PCT/US2022/024727

    申请日：2022-04-14

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

    Inventor： OAKLEY, Michael D. ,  PEREVOZCHIKOV, Michael M. ,  SWALLOW, Matthew J.

    IPC: F04D27/00 ,  F04D27/02

    Abstract: A method for determining a mass flow of a dynamic compressor that does not include a mass flow sensor while the compressor is operating to compress a working fluid includes determining, by a processor, a current operating point of the compressor. If the current operating point is the same as one in a map of a plurality of predetermined operating points stored in a memory, the mass flow of that predetermined operating point is retrieved as the mass flow of the current operating point. Otherwise, the processor calculates the mass flow at the current operating point from the mass flows of a subset of the predetermined operating points nearest the current operating point. The dynamic compressor continues to operate to compress the working fluid based at least in part on the calculated mass flow rate for the current operating point.

    COOLING SYSTEM FOR CENTRIFUGAL COMPRESSOR AND REFRIGERATION SYSTEM INCLUDING SAME
    4.
    发明申请
    COOLING SYSTEM FOR CENTRIFUGAL COMPRESSOR AND REFRIGERATION SYSTEM INCLUDING SAME 审中-公开

    公开(公告)号：WO2022154964A1

    公开(公告)日：2022-07-21

    申请号：PCT/US2021/065476

    申请日：2021-12-29

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

    Inventor： PEREVOZCHIKOV, Michael M. ,  SWALLOW, Matthew J.

    IPC: F04D17/12 ,  F04D25/06 ,  F04D29/58

    Abstract: A cooling system for a compressor includes a coolant supply line, a coolant return line, a temperature sensor connected to the coolant return line to detect at least one of a temperature of the coolant return line and a temperature of coolant within the coolant return line, and a controller. The coolant supply line includes a coolant control valve, and is connectable to a housing of the compressor to deliver coolant to at least one of a plurality of coolant flow channels defined therein. The coolant return line is connectable to the compressor housing to receive coolant from the coolant flow channels and return coolant to a low-pressure side of the compressor. The controller is configured to control the coolant control valve based on the temperature detected by the temperature sensor to control the supply of coolant through the coolant supply line.

    SURGE CONTROL SYSTEMS AND METHODS FOR DYNAMIC COMPRESSORS
    7.
    发明公开
    SURGE CONTROL SYSTEMS AND METHODS FOR DYNAMIC COMPRESSORS 审中-公开

    公开(公告)号：EP4249753A3

    公开(公告)日：2023-10-18

    申请号：EP23179640.0

    申请日：2021-12-10

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： PEREVOZCHIKOV, Michael M. ,  SWALLOW, Matthew J.

    IPC: F04D17/12 ,  F04D25/06 ,  F04D27/00 ,  F04D27/02 ,  F04D29/056

    Abstract: A system includes a dynamic compressor, a variable frequency drive (VFD), and a controller. The dynamic compressor includes a motor having a driveshaft rotatably supported within the dynamic compressor, and a compression mechanism connected to the driveshaft and operable to compress a working fluid upon rotation of the driveshaft. The VFD includes a sensor configured to sense a current provided to the motor. The controller is connected to the motor and includes a processor and a memory. The memory stores instructions that program the processor to operate the motor using the VFD to compress the working fluid, determine when surge events have occurred, store in the memory an indication of each determined surge event, and determine whether or not to take protective action when the processor determines that a surge event has occurred.

    SURGE CONTROL SYSTEMS AND METHODS FOR DYNAMIC COMPRESSORS
    8.
    发明公开
    SURGE CONTROL SYSTEMS AND METHODS FOR DYNAMIC COMPRESSORS 审中-公开

    公开(公告)号：EP4249753A2

    公开(公告)日：2023-09-27

    申请号：EP23179640.0

    申请日：2021-12-10

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： PEREVOZCHIKOV, Michael M. ,  SWALLOW, Matthew J.

    IPC: F04D17/12 ,  F04D25/06 ,  F04D27/00 ,  F04D27/02 ,  F04D29/056

    Abstract: A system includes a dynamic compressor, a variable frequency drive (VFD), and a controller. The dynamic compressor includes a motor having a driveshaft rotatably supported within the dynamic compressor, and a compression mechanism connected to the driveshaft and operable to compress a working fluid upon rotation of the driveshaft. The VFD includes a sensor configured to sense a current provided to the motor. The controller is connected to the motor and includes a processor and a memory. The memory stores instructions that program the processor to operate the motor using the VFD to compress the working fluid, determine when surge events have occurred, store in the memory an indication of each determined surge event, and determine whether or not to take protective action when the processor determines that a surge event has occurred.

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