VOLUME RATIO CONTROL SYSTEM FOR A COMPRESSOR
    61.
    发明申请

    公开(公告)号:WO2021142085A1

    公开(公告)日:2021-07-15

    申请号:PCT/US2021/012449

    申请日:2021-01-07

    Abstract: Volume ratio control system for a compressor including a chamber (118) formed within a housing (112) of the compressor (100), a piston (116) disposed within the chamber (118), where the piston (116) is configured to separate the chamber (118) into at least a first portion (120) fluidly coupled to a low pressure side (104) of the compressor and a second portion (122) fluidly coupled to a high pressure side (106) of the compressor, and a biasing device (124) disposed within the chamber, where the biasing device (124) is configured to adjust a position of the piston (116) in response to a pressure differential between the low pressure side (104) of the compressor and the high pressure side (106) of the compressor falling below a threshold value.

    CHILLER SYSTEM WITH MULTIPLE COMPRESSORS
    62.
    发明申请

    公开(公告)号:WO2021011562A1

    公开(公告)日:2021-01-21

    申请号:PCT/US2020/041972

    申请日:2020-07-14

    Abstract: A heating, ventilation, air conditioning, and/or refrigeration (HVAC&R) system includes a first vapor compression flow path (102) having a first condenser (104) configured to place a working fluid in a heat exchange relationship with a cooling fluid, a second condenser (116) a first evaporator (110) and a first compressor (124), a second vapor compression flow path (107) including a second evaporator (120) configured to place the working fluid in a heat exchange relationship with a conditioning fluid, a second compressor (126), the second condenser (116) and the first evaporator (110), a shared vapor compression flow path including the second condenser (116) and the first evaporator (110).

    MICROCHANNEL HEAT EXCHANGER WITH VARYING FIN DENSITY

    公开(公告)号:WO2020117953A1

    公开(公告)日:2020-06-11

    申请号:PCT/US2019/064499

    申请日:2019-12-04

    Abstract: A heat exchanger (100) of a heating, ventilation, air conditioning, and refrigeration (HVAC&R) system includes a plurality of microchannel tubes (104, 106), where each microchannel tube (104, 106) of the plurality of microchannel tubes (104, 106) is configured to direct refrigerant therethrough, and a plurality of fin sets (116), where each fin set (116) of the plurality of fin sets (116) is disposed between corresponding adjacent microchannel tubes (104, 106) of the plurality of microchannel tubes (104, 106). Additionally, each fin set (116) of the plurality of fin sets (116) includes a respective fin density based on a location of the respective fin set (116) along a height (112) of the heat exchanger (100).

    SYSTEMS AND METHODS FOR DETECTION AND CONFIGURATION OF SPRAY SYSTEM COMPONENTS

    公开(公告)号:WO2020036892A1

    公开(公告)日:2020-02-20

    申请号:PCT/US2019/046220

    申请日:2019-08-12

    Abstract: Provided are techniques for automatically detecting and configuring a variety of spray system components. The techniques include a controller (120) configured to detect one or more spray system components. The controller (120) is also configured to initialize software drivers corresponding to the spray system components upon connection of the spray system components to the controller. The techniques may provide one or more hardware on top (HAT) boards configured to couple to the controller and the spray system components.

    A HEATING, VENTILATION, AND AIR CONDITIONING SYSTEM, AND A MEHTOD OF OPERATING A VAPOR COMPRESSION SYSTEM

    公开(公告)号:WO2019133720A1

    公开(公告)日:2019-07-04

    申请号:PCT/US2018/067697

    申请日:2018-12-27

    Abstract: A heating, ventilation, and air conditioning (HVAC) system (10) includes an expansion device (36) disposed between a condenser (34) and an evaporator (38) of a vapor compression system (14) and a control panel (40) communicatively coupled to the expansion device (36). The control panel (40) is configured to: determine a liquid refrigerant level set point of the condenser (34) based on parameters of the vapor compression system (14), provide a first control signal to increase an opening of the expansion device (36) in response determining that the current liquid refrigerant level (82) in the condenser (34) is greater than a determined liquid refrigerant level set point of the condenser (34), and provide a second control signal to decrease the opening of the expansion device (36) in response to determining that the current liquid refrigerant level (82) in the condenser (34) is less than the determined liquid refrigerant level set point of the condenser (34).

    VARIABLE COMPRESSOR HOUSING
    69.
    发明申请

    公开(公告)号:WO2019094386A8

    公开(公告)日:2019-05-16

    申请号:PCT/US2018/059456

    申请日:2018-11-06

    Abstract: The present disclosure relates to a compressor having a first rotor and a second rotor disposed within a housing, where the first rotor is configured to rotate about a first axis of the housing and the second rotor is configured to rotate about a second axis of the housing. The first rotor and the second rotor engage with one another such that rotation of the first rotor and the second rotor pressurizes a vapor within the housing. The compressor includes an end plate coupled to a discharge end of the housing, where the end plate includes a variable opening configured to discharge a flow of the vapor from the housing. The end plate also includes a first movable member and a second movable member that are configured to increase or decrease a cross-sectional area of the variable opening to adjust the flow of the vapor.

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