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    SYSTEM AND METHOD FOR OPERATING VARIABLE FREQUENCY DRIVE USING AC-POWER SOURCE IN TRANSPORT REFRIGERATION UNIT
    1.
    发明公开
    SYSTEM AND METHOD FOR OPERATING VARIABLE FREQUENCY DRIVE USING AC-POWER SOURCE IN TRANSPORT REFRIGERATION UNIT 审中-公开

    公开(公告)号：US20240097592A1

    公开(公告)日：2024-03-21

    申请号：US18466969

    申请日：2023-09-14

    申请人： Carrier Corporation

    发明人： Samuel Venne ,  Parmesh Verma ,  Chris Repice

    IPC分类号： H02P27/04 ,  F04D25/06

    CPC分类号： H02P27/04 ,  F04D25/06

    摘要： A system in a transport refrigeration unit (TRU) for driving a compressor and/or fan(s) of the TRU by a variable frequency drive (VFD) that is operable using AC power comprises the VFD operatively connected between the compressor and one or more ac power source such as an engine-generator assembly of the TRU and/or an electrical grid. The same VFD or a different VFD is also operatively connected between the AC power source and fan(s) associated with an evaporator, and a condenser of the TRU. The VFD is configured to be operated by the AC power sources. The VFD is operable to receive a 3-phase AC power ranging from 200 to 650 volts and 0.25 to 25 KW from at least one of the AC power source, convert the received 3-phase AC power to supply AC or DC power to a motor associated with the compressor and/or the fan(s).

    Electrocaloric heat transfer method
    3.
    发明授权
    Electrocaloric heat transfer method 有权

    公开(公告)号：US11320177B2

    公开(公告)日：2022-05-03

    申请号：US16389667

    申请日：2019-04-19

    申请人： CARRIER CORPORATION

    发明人： Subramanyaravi Annapragada ,  Andrzej Ernest Kuczek ,  Thomas D. Radcliff ,  Charles E. Lents ,  Joseph V. Mantese ,  Scott Alan Eastman ,  Parmesh Verma ,  Wei Xie

    IPC分类号： F25B21/00

    摘要： A heat transfer system cycles between a first mode where a heat transfer fluid is directed to a first electrocaloric module and from the first electrocaloric module to a heat exchanger to a second electrocaloric module while one of the first and second electrocaloric modules is energized, and a second mode where the heat transfer fluid is directed to the second electrocaloric module and from the second electrocaloric module to the heat exchanger to the first electrocaloric module, while the other of the first and second electrocaloric modules is energized. The modes are repeatedly cycled in alternating order directing the heat transfer fluid to cause a temperature gradient in each of the first and second electrocaloric modules, and heat is rejected to the fluid from the heat exchanger or is absorbed by the heat exchanger from the fluid.

    ELECTROCALORIC HEAT TRANSFER ARTICLES AND SYSTEMS
    5.
    发明申请
    ELECTROCALORIC HEAT TRANSFER ARTICLES AND SYSTEMS 有权

    公开(公告)号：US20210199352A1

    公开(公告)日：2021-07-01

    申请号：US17058487

    申请日：2019-08-21

    申请人： Carrier Corporation

    发明人： Wei Xie ,  Joseph V. Mantese ,  Scott Alan Eastman ,  Subramanyaravi Annapragada ,  William A. Rioux ,  Parmesh Verma

    IPC分类号： F25B21/00

    摘要： A heat transfer system is disclosed that includes a plurality of supported electrocaloric film segments (46) arranged in a stack and connected to a frame (10). A working fluid flow path (44) extends through the stack, disposed between adjacent electrocaloric film segments. The working fluid flow path is in operative thermal communication with a heat sink and a heat source at opposite ends of the working fluid flow path. A plurality of electrodes are arranged to generate an electric field in the electrocaloric film segments, and are connected to a power source configured to selectively apply voltage to activate the electrodes in coordination with fluid flow along the working fluid flow path to transfer heat from the heat source to the heat sink. The heat transfer system further includes a film stress management mechanism.

    AIR CONDITIONING SYSTEM AND CONTROL METHOD THEROF
    6.
    发明申请
    AIR CONDITIONING SYSTEM AND CONTROL METHOD THEROF 审中-公开

    公开(公告)号：US20200318839A1

    公开(公告)日：2020-10-08

    申请号：US16842298

    申请日：2020-04-07

    申请人： Carrier Corporation

    发明人： Hongsheng Liu ,  Yinshan Feng ,  Frederick J. Cogswell ,  Parmesh Verma

    IPC分类号： F24F3/06 ,  F24F13/30 ,  F24F11/83

    摘要： An air conditioning system and a control method thereof. The air conditioning system includes a main circuit and a first subcooling circuit, wherein the main circuit has: a main compressor and an injector; a gas cooler and a gas-liquid separator connected between the main compressor and the injector; and a main throttling element and an evaporator connected between the gas-liquid separator and the injector; and wherein the first subcooling circuit has: a first subcooling compressor, a first condenser, a first subcooling throttling element and a first subcooler connected in sequence; wherein the first subcooler is further disposed in a flow path between the outlet of the injector and the gas-liquid separator.

    ELECTROCALORIC HEAT TRANSFER SYSTEM WITH PATTERNED ELECTRODES
    9.
    发明申请
    ELECTROCALORIC HEAT TRANSFER SYSTEM WITH PATTERNED ELECTRODES 审中-公开

    公开(公告)号：US20200158385A1

    公开(公告)日：2020-05-21

    申请号：US16623351

    申请日：2018-06-18

    申请人： Carrier Corporation

    发明人： Wei Xie ,  Subramanyaravi Annapragada ,  Joseph V. Mantese ,  Scott Alan Eastman ,  Parmesh Verma ,  Suman Dwari ,  Michael L. Perry ,  Vladimir Blasko

    IPC分类号： F25B21/00 ,  F28F13/16

    摘要： An electrocaloric module includes an electrocaloric element that includes an electrocaloric film, a first electrode on a first surface of the electrocaloric film, and a second electrode on a second surface of the electrocaloric film. A support is attached along an edge portion of the electrocaloric film, leaving a central portion of the electrocaloric film unsupported film. At least one of the first and second electrodes includes a patterned disposition of conductive material on the film surface. The electrocaloric module also includes a first thermal connection configured to connect to a first thermal flow path between the electrocaloric element and a heat sink, a second thermal connection configured to connect to a second thermal flow path between the electrocaloric element and a heat source, and a power connection connected to the first and second electrodes and configured to connect to a power source.

    Refrigeration purge system
    10.
    发明授权
    Refrigeration purge system 有权

    公开(公告)号：US10584906B2

    公开(公告)日：2020-03-10

    申请号：US15808837

    申请日：2017-11-09

    申请人： Carrier Corporation

    发明人： Rajiv Ranjan ,  Haralambos Cordatos ,  Zissis A. Dardas ,  Georgios S. Zafiris ,  Yinshan Feng ,  Parmesh Verma ,  Michael A. Stark

    IPC分类号： F25B43/04 ,  F25B43/00 ,  B01D19/00 ,  B01D53/22

    摘要： Disclosed is a refrigeration system including a heat transfer fluid circulation loop configured to allow a refrigerant to circulate therethrough. A purge gas outlet is in operable communication with the heat transfer fluid circulation loop. The system also includes at least one gas permeable membrane having a first side in operable communication with the purge gas outlet and a second side. The membrane includes a porous inorganic material with pores of a size to allow passage of contaminants through the membrane and restrict passage of the refrigerant through the membrane. The system also includes a permeate outlet in operable communication with a second side of the membrane.