公开(公告)号：US12013164B2

公开(公告)日：2024-06-18

申请号：US17253169

申请日：2020-07-30

Applicant: CARRIER CORPORATION

Inventor： Yonghua Zhu ,  Marcello Torchio

IPC: F25B9/08 ,  F25B41/24

CPC classification number: F25B9/08 ,  F25B41/24 ,  F25B2341/0012 ,  F25B2341/0015 ,  F25B2400/23

Abstract: Disclosed is a refrigeration system having: a steam ejector with an ejector outlet; and a passive flow trap connected to the ejector outlet.

公开(公告)号：US11841174B2

公开(公告)日：2023-12-12

申请号：US17479014

申请日：2021-09-20

Applicant: Danfoss A/S

Inventor： Lars Finn Sloth Larsen ,  Jan Prins ,  Kenneth Bank Madsen

IPC: F25B1/10 ,  F25B5/02 ,  F25B49/02 ,  F25B41/385 ,  F25B41/20

CPC classification number: F25B1/10 ,  F25B5/02 ,  F25B41/20 ,  F25B41/385 ,  F25B49/02 ,  F25B2341/0012 ,  F25B2341/0013 ,  F25B2341/0015 ,  F25B2400/0407

Abstract: A method for controlling ejector capacity in a vapour compression system (1) is disclosed. A parameter value being representative for a flow rate of liquid refrigerant from the evaporator(s) (8, 10) and into a return pipe (12, 13) is obtained, and the capacity of the ejector(s) (6) is adjusted based on the obtained parameter value. Ejector capacity may be shifted between low pressure ejectors (liquid ejectors) (6a, 6b, 6c, 6d) and high pressure ejectors (gas ejectors) (6e, 6f).

公开(公告)号：US20230384008A1

公开(公告)日：2023-11-30

申请号：US18322107

申请日：2023-05-23

Applicant: CARRIER CORPORATION

Inventor： Wei Zhang

IPC: F25B43/00 ,  F25B43/02 ,  F25B31/00

CPC classification number: F25B43/006 ,  F25B43/02 ,  F25B31/004 ,  F25B2341/0011 ,  F25B2341/0015

Abstract: The refrigeration system comprises: a main flow path comprising a compressor, a condenser, a throttling device and an evaporator, wherein the compressor comprises at least a first compression stage and a second compression stage; and the refrigeration system further comprises: an ejector configured to eject low-pressure refrigerant from the evaporator by means of high-pressure refrigerant from the condenser and to mix them into medium-pressure gas-liquid two-phase refrigerant; and a separator configured to separate the medium-pressure gas-liquid two-phase refrigerant from the ejector into gas-phase refrigerant and liquid-phase refrigerant, to deliver the gas-phase refrigerant separated to a gas supply port between a fluid outlet of the first compression stage and a fluid inlet of the second compression stage in the compressor, and to deliver the liquid-phase refrigerant separated to a motor housing of the compressor for cooling a rotor and a stator in the motor housing by flash evaporation.

公开(公告)号：US20180187929A1

公开(公告)日：2018-07-05

申请号：US15736586

申请日：2016-06-16

Applicant: Carrier Corporation

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

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

CPC classification number: F25B13/00 ,  F04F5/46 ,  F25B9/002 ,  F25B9/08 ,  F25B41/00 ,  F25B41/04 ,  F25B2341/0012 ,  F25B2341/0015 ,  F25B2400/0407 ,  F25B2400/23

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：US20180142927A1

公开(公告)日：2018-05-24

申请号：US15572020

申请日：2015-05-12

Applicant: Carrier Corporation

Inventor： Sascha Hellmann ,  Christoph Kren

IPC: F25B41/04 ,  F25B1/10 ,  F25B5/02

CPC classification number: F25B41/043 ,  F25B1/10 ,  F25B5/00 ,  F25B5/02 ,  F25B41/00 ,  F25B2341/0012 ,  F25B2341/0015 ,  F25B2700/195 ,  F25B2700/197 ,  F25B2700/2109 ,  F25B2700/21163 ,  F25B2700/21175

Abstract: An ejector refrigeration circuit (1) comprises a high pressure ejector circuit (3) comprising in the direction of flow of a circulating refrigerant: a heat rejecting heat exchanger/gas cooler (4) having an inlet side (4a) and an outlet side (4b); at least two variable ejectors (6, 7) with different capacities connected in parallel, each of the variable ejectors (6, 7) comprising a primary high pressure input port (6a, 7a), a secondary low pressure input port (6b, 7b) and an output port (6c, 7c); wherein the primary high pressure input ports (6a, 7a) of the at least two variable ejectors (6, 7) are fluidly connected to the outlet side (4b) of the heat rejecting heat exchanger/gas cooler (4); a receiver (8), having an inlet (8a), a liquid outlet (8c), and a gas outlet (8b), wherein the inlet (8a) is fluidly connected to the output ports (6c, 7c) of the at least two variable ejectors (6, 7); at least one compressor (2a, 2b, 2c) having an inlet side (21a, 21 b, 21c) and an outlet side (22a, 22b, 22c), the inlet side (21a, 21 b, 21c) of the at least one compressor (2a, 2b, 2c) being fluidly connected to the gas outlet (8b) of the receiver (8), and the outlet side (22a, 22b, 22c) of the at least one compressor (2a, 2b, 2c) being fluidly connected to the inlet side (4a) of the heat rejecting heat exchanger/gas cooler (4). The ejector refrigeration circuit (1) further comprises a refrigerating evaporator flowpath (5) comprising in the direction of flow of the circulating refrigerant: at least one refrigeration expansion device (10) having an inlet side (10a), fluidly connected to the liquid outlet (8c) of the receiver (8), and an outlet side (7b); at least one refrigeration evaporator (12) fluidly connected between the outlet side (10b) of the at least one refrigeration expansion device (10) and the secondary low pressure input ports (6b, 7b) of the at least two variable ejectors (6, 7).

公开(公告)号：US09759462B2

公开(公告)日：2017-09-12

申请号：US13703490

申请日：2011-07-20

Applicant: Jiang Zou ,  Hongsheng Liu ,  Parmesh Verma ,  Thomas D. Radcliff ,  Jinliang Wang

Inventor： Jiang Zou ,  Hongsheng Liu ,  Parmesh Verma ,  Thomas D. Radcliff ,  Jinliang Wang

IPC: F25B41/00 ,  F25B41/06 ,  F25B9/06 ,  F25B40/00 ,  F25B40/02 ,  F25B5/02 ,  F25B6/04 ,  F25B9/00

CPC classification number: F25B41/00 ,  F25B5/02 ,  F25B6/04 ,  F25B9/008 ,  F25B9/06 ,  F25B40/00 ,  F25B40/02 ,  F25B41/062 ,  F25B2341/0011 ,  F25B2341/0015 ,  F25B2400/14

Abstract: A system has a compressor, a heat rejection heat exchanger, first and second ejectors, first and second heat absorption heat exchangers, and a separator. The ejectors each have a primary inlet coupled to the heat rejection exchanger to receive refrigerant. A second heat absorption heat exchanger is coupled to the outlet of the second ejector to receive refrigerant. The separator has an inlet coupled to the outlet of the first ejector to receive refrigerant from the first ejector. The separator has a gas outlet coupled to the secondary inlet of the second ejector to deliver refrigerant to the second ejector. The separator has a liquid outlet coupled to the secondary inlet of the first ejector via the first heat absorption heat exchanger to deliver refrigerant to the first ejector.

公开(公告)号：US20170253106A1

公开(公告)日：2017-09-07

申请号：US15506761

申请日：2015-09-01

Applicant: DENSO CORPORATION

Inventor： Haruyuki NISHIJIMA ,  Gouta OGATA ,  Yoshiaki TAKANO

IPC: B60H1/32 ,  F04F5/36 ,  F04F5/24

CPC classification number: B60H1/3223 ,  B60H1/323 ,  B60H2001/3289 ,  B60H2001/3298 ,  F04F5/04 ,  F04F5/24 ,  F04F5/36 ,  F04F5/46 ,  F04F5/54 ,  F25B41/00 ,  F25B2341/0012 ,  F25B2341/0015

Abstract: A refrigerant that has flowed out of a liquid ejector radiates heat in a radiator, and a liquid-phase refrigerant that has radiated heat in the radiator flows into an ejection refrigerant passage of the liquid ejector. A discharged refrigerant of a compressor that suctions the refrigerant that has flowed out of a low-pressure evaporator flows into an inflow refrigerant passage of the liquid ejector. An ejector adopted as the liquid ejector is one in which an ejection refrigerant is ejected from the ejection refrigerant passage to a gas-liquid mixing portion, and the ejection refrigerant is ejected on an outer circumferential side of the inflow refrigerant flowing from the inflow refrigerant passage into the gas-liquid mixing portion.

公开(公告)号：US20170003040A1

公开(公告)日：2017-01-05

申请号：US14790204

申请日：2015-07-02

Applicant: General Electric Company

Inventor： Gunaranjan Chaudhry ,  Brent Alden Junge ,  Michael John Kempiak

IPC: F24F1/02 ,  F25B13/00 ,  F24F1/00 ,  F25B30/02

CPC classification number: F24F1/0059 ,  F24F1/022 ,  F24F1/04 ,  F25B5/02 ,  F25B5/04 ,  F25B6/02 ,  F25B13/00 ,  F25B41/00 ,  F25B41/067 ,  F25B43/006 ,  F25B2341/0012 ,  F25B2341/0015 ,  F25B2400/23

Abstract: A packaged terminal air conditioner unit includes a casing. A compressor, a reversing valve and an ejector of the packaged terminal air conditioner unit are positioned within the casing. The ejector is configured for drawing vapor refrigerant into a flow of liquid refrigerant. An exterior heat exchanger and an interior heat exchanger are also positioned within the casing. The interior heat exchanger has a first stage and a second stage.

Abstract translation: 封装的终端空调单元包括壳体。 封装式终端空调单元的压缩机，换向阀和喷射器位于壳体内。 喷射器被构造成将蒸汽制冷剂吸入液体制冷剂流中。 外部热交换器和内部热交换器也定位在壳体内。 内部热交换器具有第一阶段和第二阶段。

公开(公告)号：US07779647B2

公开(公告)日：2010-08-24

申请号：US11439415

申请日：2006-05-23

Applicant: Hirotsugu Takeuchi ,  Mika Saito ,  Hiroshi Oshitani ,  Shin Nishida ,  Takayuki Sugiura

Inventor： Hirotsugu Takeuchi ,  Mika Saito ,  Hiroshi Oshitani ,  Shin Nishida ,  Takayuki Sugiura

IPC: F25B1/06

CPC classification number: F25B41/00 ,  B60H2001/3298 ,  F25B5/04 ,  F25B13/00 ,  F25B40/00 ,  F25B2341/0012 ,  F25B2341/0015 ,  F25B2400/23 ,  F25B2500/01 ,  F25B2600/111 ,  F25B2600/112 ,  F25B2700/1933 ,  F25B2700/197 ,  F25B2700/21151 ,  F25B2700/2117 ,  F25B2700/21175

Abstract: An ejector cycle device includes a compressor that draws and compresses refrigerant, a radiator that radiates heat of high-pressure refrigerant discharged from the compressor, an ejector, a branch passage branched from a refrigerant passage between the radiator and a nozzle portion of the ejector and coupled to a suction port of the ejector, a throttle unit that is arranged in the branch passage and decompresses refrigerant, and an evaporator that is arranged on a downstream side of refrigerant flow of the throttle unit in the branch passage and evaporates refrigerant. Accordingly, even when a suction performance of the ejector is lowered, refrigerant can flow through the evaporator.

Abstract translation: 喷射器循环装置包括：压缩机，其抽吸和压缩制冷剂;散热器，其辐射从压缩机排出的高压制冷剂的热量;喷射器;分支通道，其从散热器与喷射器的喷嘴部分之间的制冷剂通道分支; 联接到喷射器的吸入口，设置在分支通道中并减压制冷剂的节流单元和布置在分支通道中的节流单元的制冷剂流的下游侧的蒸发器，并蒸发制冷剂。 因此，即使降低喷射器的吸入性能，制冷剂也可以流过蒸发器。

公开(公告)号：US20040123624A1

公开(公告)日：2004-07-01

申请号：US10735686

申请日：2003-12-15

Inventor： Hiromi Ohta ,  Motohiro Yamaguchi ,  Keiichi Kitamura

IPC: F25B001/00 ,  F25B001/06 ,  F25B039/02

CPC classification number: B60H1/323 ,  B60H2001/3297 ,  B60H2001/3298 ,  F25B5/02 ,  F25B5/04 ,  F25B9/008 ,  F25B40/00 ,  F25B41/00 ,  F25B2309/061 ,  F25B2341/0012 ,  F25B2341/0013 ,  F25B2341/0015

Abstract: A vapor-compression refrigerant cycle system includes a first evaporator in which refrigerant is evaporated, a second evaporator in which refrigerant is evaporated at a pressure lower than that in the first evaporator, and a switching device for switching between a first circulation where the refrigerant is circulated to the first evaporator and a second circulation where the refrigerant is circulated to the second evaporator. When the switching device switches to the second circulation from the first circulation, a refrigerant circulation into the second evaporator is stopped until the refrigerant pressure in the second evaporator becomes equal to or lower than a predetermined pressure. Therefore, the pressure in the second evaporator can be rapidly reduced. Further, when carbon dioxide is used as the refrigerant, the pressure in the second evaporator can be further rapidly reduced.

Abstract translation: 一种蒸汽压缩式制冷剂循环系统，包括制冷剂蒸发的第一蒸发器，第二蒸发器，其制冷剂以比第一蒸发器低的压力蒸发，以及切换装置，用于在制冷剂 循环到第一蒸发器和第二循环，其中制冷剂循环到第二蒸发器。 当切换装置从第一循环切换到第二循环时，停止进入第二蒸发器的制冷剂循环，直到第二蒸发器中的制冷剂压力等于或低于预定压力。 因此，第二蒸发器中的压力可以迅速降低。 此外，当二氧化碳用作制冷剂时，第二蒸发器中的压力可以进一步快速降低。