公开(公告)号：WO2020055462A1

公开(公告)日：2020-03-19

申请号：PCT/US2019/033735

申请日：2019-05-23

Applicant: CARRIER CORPORATION

Inventor： MAHMOUD, Ahmad M. ,  WANG, Jinliang ,  COGSWELL, Frederick J. ,  VERMA, Parmesh

IPC: F25B13/00 ,  F25B41/00 ,  F25B49/02

Abstract: A method for operating a heat pump (20; 300) includes operating in a cooling mode wherein heat is absorbed by refrigerant in the indoor heat exchanger (26) and rejected by refrigerant in the outdoor heat exchanger (24). The heat pump switches to operation in a heating mode wherein heat is rejected by refrigerant in the indoor heat exchanger, heat is absorbed by refrigerant in the outdoor heat exchanger, and there is an ejector (60) motive flow and ejector secondary flow. In the heating mode a refrigerant pressure (PH) or temperature (TL) is measured and, responsive to the measured refrigerant pressure or temperature, at least one of a fan speed is changed and a needle (132) of the ejector is actuated.

公开(公告)号：WO2016014144A1

公开(公告)日：2016-01-28

申请号：PCT/US2015/030709

申请日：2015-05-14

Applicant: CARRIER CORPORATION

Inventor： FENG, Yinshan ,  MAHMOUD, Ahmad M. ,  VERMA, Parmesh

IPC: F25B13/00 ,  F25B41/04

CPC classification number: F25B13/00 ,  F25B41/04 ,  F25B41/043 ,  F25B41/062 ,  F25B2341/0011 ,  F25B2341/0661 ,  F25B2400/23 ,  F25B2700/2106

Abstract: A system (20; 300; 500) comprises: a compressor (22) having a suction port (40) and a discharge port (42); an ejector (32) having a motive flow inlet (50), a suction flow inlet (52), and an outlet (54); a separator (34) having an inlet (72), a vapor outlet (74), and a liquid outlet (76); a first heat exchanger (24); at least one expansion device (28, 30; 520); a second heat exchanger (26); and a plurality of conduits and a plurality of valves (100, 120, 130, 140, 144, 148, 150; 100, 140, 144, 148, 150, 320, 340; 100, 120, 530). The conduits and valves are positioned to provide alternative operation in: a cooling mode; a first heating mode wherein the ejector has a motive flow and a suction flow and where utilizing a first expansion device (30; 520) of the at least one expansion device; and a second heating mode utilizing the first expansion device and wherein the ejector has a suction flow and essentially no motive flow.

Abstract translation: 系统（20; 300; 500）包括：具有吸入口（40）和排出口（42）的压缩机（22）; 具有动力流入口（50），吸入流入口（52）和出口（54）的喷射器（32）; 具有入口（72），蒸汽出口（74）和液体出口（76）的分离器（34）; 第一热交换器（24）; 至少一个膨胀装置（28,30; 520）; 第二热交换器（26）; 以及多个管道和多个阀门（100,120,130,140,​​144,148,150; 100,140,​​144,148,150,320,340; 100,120,530）。 导管和阀被定位以提供替代操作：冷却模式; 第一加热模式，其中喷射器具有动力流和吸入流，并且其中利用所述至少一个膨胀装置的第一膨胀装置（30; 520）; 以及利用所述第一膨胀装置的第二加热模式，并且其中所述喷射器具有吸入流并且基本上不具有动力流。

公开(公告)号：WO2020072154A1

公开(公告)日：2020-04-09

申请号：PCT/US2019/049019

申请日：2019-08-30

Applicant: CARRIER CORPORATION

Inventor： WANG, Jinliang ,  MAHMOUD, Ahmad M. ,  COGSWELL, Federick J. ,  VERMA, Parmesh

IPC: F25B31/00 ,  F25B31/02 ,  F25B9/00 ,  F25B49/02 ,  F25B41/04 ,  F25B1/053

Abstract: A HVAC system includes a compressor having a low pressure input and a high pressure output. The compressor is driven by a motor having a liquid coolant flowpath configured to cool and lubricate the motor. The motor has a coolant input and a coolant output. An evaporator is in communication with the compressor, and includes a coolant input and a coolant output. A condenser is in fluid communication with the evaporator and the compressor. A first coolant flowpath, includes a coolant drive system connecting the output of the condenser to a valve switching device. A second coolant flowpath connects the output of the condenser to the input of the evaporator and to a second input of the valve switching device. A third coolant flowpath connects the valve switching device to the inputs of the motor. A fourth coolant flowpath connects outputs of the motor to the input of the evaporator.

公开(公告)号：WO2019203963A1

公开(公告)日：2019-10-24

申请号：PCT/US2019/022193

申请日：2019-03-14

Applicant: CARRIER CORPORATION

Inventor： WALLET-LAÏLY, Jeremy ,  MAHMOUD, Ahmad M. ,  VERMA, Parmesh

IPC: F25B9/00 ,  F25B13/00 ,  F25B31/00 ,  F25B41/04 ,  F25B49/02

Abstract: A vapor compression system (20; 120; 220; 320) has: first (22A; 122A; 222A) and second (22B; 122B; 222B) compressors; first (40) and second (46) heat exchangers; and one or more expansion devices (52; 52A, 52B). Means (32A, 32B; 32A, 32B, 126A, 126B; 32A, 32B, 232A, 232B) are provided for switching the system between operation in first and second modes using the respective first and second compressors. In the first mode: the first compressor compresses refrigerant; the compressed refrigerant is cooled in the first heat exchanger; the cooled refrigerant is expanded in at least one of the one or more expansion devices; and the expanded refrigerant absorbs heat in the second heat exchanger. In the second mode: the second compressor compresses refrigerant; the compressed refrigerant is cooled in the second heat exchanger; the cooled refrigerant is expanded in at least one of the one or more expansion devices; and the expanded refrigerant absorbs heat in the first heat exchanger.

公开(公告)号：WO2017087794A1

公开(公告)日：2017-05-26

申请号：PCT/US2016/062759

申请日：2016-11-18

Applicant: CARRIER CORPORATION

Inventor： MAHMOUD, Ahmad M. ,  VERMA, Parmesh ,  COGSWELL, Frederick J. ,  SHI, Zuojun

IPC: F25B41/00 ,  F25B13/00 ,  F25B41/04 ,  F25B43/00

CPC classification number: F25B41/00 ,  F25B13/00 ,  F25B41/04 ,  F25B43/006 ,  F25B2313/02741 ,  F25B2341/0011 ,  F25B2341/0013 ,  F25B2400/23 ,  F25B2700/2106

Abstract: A system (20; 300) comprises: a compressor (22) having a suction port (40) and a discharge port (42); an ejector (32) having a motive flow inlet (50), a suction flow inlet (52), and an outlet (54); a separator (34) having an inlet (72), a vapor outlet (74), and a liquid outlet (76); a first heat exchanger (24); an expansion device (28); and a second heat exchanger (26; 302). Conduits and valves are positioned to provide alternative operation in: a cooling mode; a first heating mode; and a second heating mode. In the cooling mode and second heating mode, a needle (60) of the ejector is closed.

Abstract translation: 系统（20; 300）包括：具有吸入端口（40）和排出端口（42）的压缩机（22）;以及压缩机 具有动力流入口（50），吸入流入口（52）和出口（54）的喷射器（32）; 具有入口（72），蒸气出口（74）和液体出口（76）的分离器（34）; 第一热交换器（24）; 一个膨胀装置（28）; 和第二热交换器（26; 302）。 导管和阀门定位为提供替代操作：冷却模式; 第一加热模式; 和第二加热模式。 在制冷模式和第二加热模式下，喷射器的针（60）关闭。