REFRIGERATION SYSTEM WITH TANDEM HIGH-SIDE COMPRESSORS

    公开(公告)号:US20230213255A1

    公开(公告)日:2023-07-06

    申请号:US18149944

    申请日:2023-01-04

    IPC分类号: F25B49/02 F25B31/00

    摘要: A refrigeration system is provided and includes a common suction line, a common discharge line, first and second high-side compressors disposed in parallel to receive low-pressure refrigerant from the common suction line and to direct high-pressure refrigerant to the common discharge line, a first pipe connected to the first and second high-side compressors at vertical heights at which an oil supply is required to remain higher and a second pipe connected to the first and second high-side compressors at vertical heights sufficient to maintain gas pressure balance between the first and second high-side compressors.

    SYSTEMS AND METHODS FOR ACTIVE COMPRESSOR CONTROL

    公开(公告)号:US20230064418A1

    公开(公告)日:2023-03-02

    申请号:US17813146

    申请日:2022-07-18

    IPC分类号: F25B49/02 F25B40/06 F25B41/34

    摘要: A refrigeration system configured for controlling operation of a compressor is disclosed. The refrigeration system comprises an electronic expansion device operatively coupled with the compressor. The refrigeration system comprises a controller operatively coupled with the electronic expansion device. The controller is configured to control the electronic expansion valve based on a superheat setpoint range. The controller is further configured to adjust the superheat setpoint range in response to an operating point of the compressor being within a threshold distance from a boundary of an operational envelope for the compressor.

    TWO-WIRE CONNECTION WITH COMPONENT CONTROL

    公开(公告)号:US20220221187A1

    公开(公告)日:2022-07-14

    申请号:US17572863

    申请日:2022-01-11

    IPC分类号: F24F11/88 H04B3/56 H02M7/5387

    摘要: Provided are embodiments for a system for providing component control over a two-wire connection. The embodiments can include a control unit connected to a power source, a remote unit coupled to the control unit over the two-wire connection, the two-wire connection including a power/communication wire and a common wire, and a bridge-type amplifier configured to receive a power signal from the remote unit, the bridge-type amplifier configured to generate a square wave from the power signal. Also provided are embodiments for a method for providing component control over a two-wire connection.