公开(公告)号：US20230400230A1

公开(公告)日：2023-12-14

申请号：US18238185

申请日：2023-08-25

Applicant: Carrier Corporation

Inventor： Ahmad M. Mahmoud ,  Jinliang Wang ,  Frederick J. Cogswell ,  Parmesh Verma

IPC: F25B13/00 ,  F25B49/02

CPC classification number: F25B13/00 ,  F25B49/02 ,  F25B2313/0293 ,  F25B2341/0013 ,  F25B2400/23 ,  F25B2600/11 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21162 ,  F25B2700/21163 ,  F25B2700/21174 ,  F25B2700/21175 ,  F25B41/42

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：US11561028B2

公开(公告)日：2023-01-24

申请号：US16989603

申请日：2020-08-10

Applicant: Carrier Corporation

Inventor： Ahmad M. Mahmoud ,  Parmesh Verma ,  Zuojun Shi ,  Frederick J. Cogswell

IPC: F25B13/00 ,  F25B41/00 ,  F25B43/00 ,  F25B41/20 ,  F25B30/02 ,  F25B49/02

Abstract: A system (20; 300) has: 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.

公开(公告)号：US11466906B2

公开(公告)日：2022-10-11

申请号：US16765004

申请日：2018-09-28

Applicant: Carrier Corporation

Inventor： Wei Xie ,  Aritra Sur ,  Subramanyaravi Annapragada ,  William A. Rioux ,  Joseph V. Mantese ,  Parmesh Verma ,  Scott Alan Eastman ,  Thomas D. Radcliff

IPC: F25B21/02

Abstract: Disclosed is a heat transfer system with a module that includes a peripheral frame (10) and an electrocaloric element (46) disposed in an opening in the peripheral frame. The electrocaloric element includes an electrocaloric film (46), a first electrode (48) on a first side of the electrocaloric film, and a second electrode (50) on a second side of the electrocaloric film. First and second electrically conductive elements (24, 25) are disposed adjacent to first and second surfaces of the peripheral frame, and provide an electrical connection to the first and second electrodes.

公开(公告)号：US11326789B2

公开(公告)日：2022-05-10

申请号：US16842298

申请日：2020-04-07

Applicant: Carrier Corporation

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

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

Abstract: 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.

公开(公告)号：US20210364203A1

公开(公告)日：2021-11-25

申请号：US15734846

申请日：2019-11-27

Applicant: Carrier Corporation

Inventor： Rajiv Ranjan ,  Yinshan Feng ,  Parmesh Verma ,  Michael A. Stark

IPC: F25B43/04 ,  F25B49/02 ,  B01D53/047

Abstract: A method of purging contaminants from a refrigerant of a heat pump via a purge system includes generating a driving force across a separator, providing refrigerant including contaminants to the separator, separating the contaminants from the refrigerant within the separator, monitoring one or more parameters of the purge system and the heat pump, and actively controlling an operational parameter of the purge system in response to monitoring one or more parameters of the purge system and the heat pump.

公开(公告)号：US10935286B2

公开(公告)日：2021-03-02

申请号：US14348531

申请日：2012-09-27

Applicant: Carrier Corporation

Inventor： Parmesh Verma ,  Frederick J. Cogswell ,  Thomas D. Radcliff ,  Mohsen Farzad ,  Vladimir Blasko ,  Jules R. Munoz ,  Seshadri Sivakumar

IPC: F25B25/00 ,  F25B23/00 ,  F25B9/00 ,  F25B41/00 ,  F25B25/02

Abstract: A refrigerant system includes a first, substantially outdoor, two phase heat transfer fluid vapor compression circulation loop including a compressor, a heat exchanger condenser, an expansion device, and the heat absorption side of a heat exchanger evaporator condenser, connected by conduit in a closed loop and having disposed therein a first heat transfer fluid having a critical temperature of greater than or equal to 31.2° C. The system also includes a second, at least partially indoor, two phase heat transfer fluid circulation loop that transfers heat to the first loop through the heat exchanger evaporator condenser. The second loop includes the heat rejection side of the heat exchanger evaporator condenser, a liquid pump, and a heat exchanger evaporator, connected by conduit in a closed loop and having disposed therein a second heat transfer fluid that has an ASHRAE Class A toxicity rating and an ASHRAE Class 1 or 2L flammability rating.

公开(公告)号：US10823463B2

公开(公告)日：2020-11-03

申请号：US15736586

申请日：2016-06-16

Applicant: Carrier Corporation

Inventor： Hongsheng Liu ,  Parmesh Verma ,  Thomas D. Radcliff

IPC: F25B13/00 ,  F25B41/00 ,  F25B41/04 ,  F04F5/46 ,  F25B9/00 ,  F25B9/08

Abstract: A vapor compression system (200; 400; 600; 700; 800; 900; 1000) comprises a plurality of valves (260, 262, 264; 260) controllable to define a first mode flowpath and a second mode flowpath. The first mode flowpath is sequentially through: a compressor (22); a first heat exchanger (30); a first nozzle (228; 624); and a separator (48), and then branching into: a first branch returning to the compressor; and a second branch passing through an expansion device (70) and a second heat exchanger (64) to the rejoin the flowpath between the first heat exchanger and the separator. The second mode flowpath is sequentially through: the compressor; the second heat exchanger; a second nozzle (248; 625); and the separator, and then branching into: a first branch returning to the compressor; and a second branch passing through the expansion device and first heat exchanger to the rejoin the flowpath between the first heat exchanger and the separator.

公开(公告)号：US20200318866A1

公开(公告)日：2020-10-08

申请号：US16828209

申请日：2020-03-24

Applicant: CARRIER CORPORATION

Inventor： Dhruv Chanakya Hoysall ,  Yinshan Feng ,  Parmesh Verma ,  Bart Antonie van Hassel ,  Rajiv Ranjan

IPC: F25B25/02 ,  F25B1/06 ,  F25B9/00 ,  F25B9/08 ,  F25B15/10 ,  F25B40/02 ,  F25B41/06

Abstract: A cooling system is provided and includes a compressor, an expansion valve, a gas cooler through which a refrigerant received from the compressor passes toward the expansion valve in a supercritical state, an evaporator interposed between the expansion valve and the compressor and a vapor sorption subcooling system. The vapor sorption subcooling system includes a desorber disposed to remove heat from refrigerant flowing from the gas cooler toward the expansion valve.

公开(公告)号：US10739052B2

公开(公告)日：2020-08-11

申请号：US15776561

申请日：2016-11-18

Applicant: Carrier Corporation

Inventor： Ahmad M. Mahmoud ,  Parmesh Verma ,  Zuojun Shi ,  Frederick J. Cogswell

IPC: F25B49/02 ,  F25B41/00 ,  F25B41/04 ,  F25B43/00 ,  F25B13/00 ,  F25B30/02

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.

公开(公告)号：US10670322B2

公开(公告)日：2020-06-02

申请号：US15774740

申请日：2016-11-09

Applicant: Carrier Corporation

Inventor： Renee A. Eddy ,  Jeffrey J. Burchill ,  Giorgio Rusignuolo ,  Robert A. Chopko ,  Larry D. Burns ,  Ivan Rydkin ,  Ciara N. Poolman ,  Paul Papas ,  Parmesh Verma

IPC: F25D11/00 ,  F25B25/00 ,  F25B9/00 ,  F25D19/00 ,  F25B23/00 ,  B60H1/32 ,  B65D88/74

Abstract: A refrigerated transport system (20) comprises a body (22) enclosing a refrigerated compartment (69). A refrigeration system (30) comprises: a vapor compression loop (31) having a first heat exchanger (38) positioned to reject heat to an external environment in a cooling mode. A heat transfer loop (32) has a second heat exchanger (58) positioned to absorb heat from the refrigerated compartment in the cooling mode. An inter-loop heat exchanger (44) has a first leg (42) along the vapor compression loop and a second leg (43) along the heat transfer loop in heat exchange relation with the first leg.