公开(公告)号：US12097451B2

公开(公告)日：2024-09-24

申请号：US16461938

申请日：2017-11-15

申请人： Danfoss A/S

发明人： Jan Prins ,  Frede Schmidt ,  Kenneth Bank Madsen ,  Kristian Fredslund

IPC分类号： B01D35/147 ,  F25B1/10 ,  F25B49/02 ,  F25B41/00 ,  F25B41/39

CPC分类号： B01D35/1475 ,  F25B1/10 ,  F25B49/02 ,  F25B49/022 ,  F25B41/00 ,  F25B41/39 ,  F25B2309/14 ,  F25B2341/0012 ,  F25B2400/075 ,  F25B2400/23 ,  F25B2500/19 ,  F25B2600/0253 ,  F25B2600/111 ,  F25B2600/2509 ,  F25B2600/2513 ,  F25B2700/193 ,  F25B2700/1931 ,  F25B2700/195 ,  F25B2700/21152 ,  F25B2700/21163 ,  Y02B30/70

摘要： A method for controlling a vapour compression system (1) is disclosed. Malfunctioning of a gas bypass valve (8) is registered. An actual opening degree of the gas bypass valve (8) is derived, and a target opening degree of the gas bypass valve (8) is derived, based on one or more control parameters of the vapour compression system (1). The actual opening degree is compared to the target opening degree, and the vapour compression system (1) is controlled based on the comparison, and in order to match a mass flow of gaseous refrigerant through the gas bypass valve (8) to the actual opening degree of the gas bypass valve (8).

公开(公告)号：US20240310034A1

公开(公告)日：2024-09-19

申请号：US18353207

申请日：2023-07-17

申请人： GE-Hitachi Nuclear Energy Americas LLC

发明人： Giridhar JOTHIPRASAD ,  Todd JANKOWSKI ,  Brian HUNT ,  Ya-Tien CHIU ,  Robert MARTIN ,  Ayesh SUDASINGHE

IPC分类号： F22B1/16 ,  E21B43/24 ,  F25B1/10 ,  F25B9/00 ,  G21D5/06 ,  G21D9/00

CPC分类号： F22B1/162 ,  E21B43/2406 ,  F25B1/10 ,  F25B9/008 ,  G21D5/06 ,  G21D9/00

摘要： An integrated nuclear-powered heat pump system includes a nuclear power plant including a nuclear reactor coolant and may be configured to generate electricity. The system additionally includes a heat pump including a refrigerant as a working fluid. The heat pump is integrated with the nuclear power plant so as to be in at least thermal contact with the nuclear reactor coolant. The electricity generated by the nuclear power plant may be used to drive the heat pump. The system is instrumental with regard to generating heat for industrial applications.

公开(公告)号：US11946674B2

公开(公告)日：2024-04-02

申请号：US17254930

申请日：2020-09-11

申请人： Carrier Corporation

发明人： Xi Feng ,  Shuguang Zhang ,  Jun Cao ,  Hao Zhao

IPC分类号： F25B31/00 ,  F25B1/10 ,  F25B5/02 ,  F25B41/22 ,  F25B49/02 ,  H02P29/60

CPC分类号： F25B31/006 ,  F25B1/10 ,  F25B5/02 ,  F25B41/22 ,  F25B49/02 ,  H02P29/60 ,  F25B2400/05 ,  F25B2600/2513 ,  F25B2600/2515 ,  F25B2700/1933 ,  F25B2700/2115

摘要： An air conditioning system includes a main circuit having a multi-stage compressor, a condenser, a throttling element and an evaporator connected by pipelines; and a cooling branch, the inlet of which is connected to the main circuit between the condenser and the throttling element, and the outlet of which is connected to at least one of the first-stage suction port and the intermediate-stage suction port of the multi-stage compressor, wherein refrigerant from the cooling branch flows through the drive motor of the multi-stage compressor, and a regulating valve for controlling the opening of the cooling branch is provided on the cooling branch; and a control module that controls the opening of the regulating valve on the cooling branch based on the temperature of the outlet downstream of the drive motor on the cooling branch and the intermediate suction pressure of the intermediate-stage suction port of the multi-stage compressor.

公开(公告)号：US20240060691A1

公开(公告)日：2024-02-22

申请号：US18201511

申请日：2023-05-24

申请人： Emerson Climate Technologies, Inc.

发明人： Prashant Rangnath RASKAR ,  Sunil A. MAGADUM ,  Douglas Patrick PELSOR ,  Pradeep CHIRAL ,  Pavan Pralhad JORWEKAR

IPC分类号： F25B31/00 ,  F25B41/20 ,  F25B1/10 ,  F16N29/02

CPC分类号： F25B31/002 ,  F25B41/20 ,  F25B1/10 ,  F16N29/02 ,  F25B2500/16 ,  F16N2210/16 ,  F16N2250/18 ,  F16N2270/10

摘要： A climate-control system may include first and second compressors and a suction manifold. The first compressor includes a first shell, a first compression mechanism, and a first suction inlet through which working fluid is drawn into the first compressor. The second compressor includes a second shell, a second compression mechanism, and a second suction inlet through which working fluid is drawn into the second compressor. The suction manifold includes first and second arms. The first arm provides working fluid to the first suction inlet. The second arm provides working fluid to the second suction inlet. The second arm includes a first suction pipe, a second suction pipe, and a suction valve. The suction valve is movable between a first position in which working fluid is allowed to flow through the first suction pipe and a second position in which working fluid is allowed to flow through the second suction pipe.

公开(公告)号：US11885540B2

公开(公告)日：2024-01-30

申请号：US17539318

申请日：2021-12-01

申请人： Carrier Corporation

发明人： Charbel Rahhal

IPC分类号： F25B39/04 ,  F25B40/02 ,  F25B41/31 ,  F25B1/10 ,  F25B49/02

CPC分类号： F25B39/04 ,  F25B1/10 ,  F25B40/02 ,  F25B41/31 ,  F25B49/02 ,  F25B2339/047 ,  F25B2400/0411 ,  F25B2400/0417 ,  F25B2400/13

摘要： A method of cooling a refrigerant includes providing a condenser (200) including a condenser shell (202) that contains a condenser chamber (204), a condensing conduit (209), and a cooling conduit (217); condensing a refrigerant within the condenser chamber (204) from a vapour phase to a liquid phase by exchanging heat from the refrigerant in the condenser chamber (204) to a fluid in the condensing conduit (209); supplying a first portion of the condensed refrigerant to the cooling conduit (217) via a first expansion valve (310) such that the first portion of the refrigerant decreases in pressure and temperature before entering the cooling conduit (217); and cooling the refrigerant in the condenser chamber (204) by exchanging heat from the refrigerant in the condenser chamber (204) to the first portion of the refrigerant in the cooling conduit (217).

公开(公告)号：US11879675B2

公开(公告)日：2024-01-23

申请号：US16743701

申请日：2020-01-15

申请人： Heatcraft Refrigeration Products LLC

发明人： Shitong Zha ,  Douglas Cole

IPC分类号： F25B41/20 ,  F25B13/00 ,  F25B1/10 ,  F25D11/02 ,  F25B43/00 ,  F25B5/02 ,  F25B49/02

CPC分类号： F25B41/20 ,  F25B1/10 ,  F25B5/02 ,  F25B13/00 ,  F25B43/006 ,  F25B49/02 ,  F25D11/022 ,  F25B2400/0409 ,  F25B2400/051 ,  F25B2400/072 ,  F25B2600/2501 ,  F25B2700/04

摘要： A cooling system partially floods the low temperature low side heat exchangers (e.g., freezers) in the system. An accumulator is positioned between the low temperature low side heat exchangers and the low temperature compressor. The accumulator collects the refrigerant (both liquid and vapor) from the flooded low temperature low side heat exchangers. Refrigerant discharged by the low temperature compressor is fed through the accumulator so that heat can be transferred to the refrigerant collected in the accumulator. As a result, the temperature of the refrigerant discharged by the low temperature compressor drops before that refrigerant reaches the medium temperature compressor.

公开(公告)号：US11841150B2

公开(公告)日：2023-12-12

申请号：US17284100

申请日：2018-12-12

申请人： GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

发明人： Kai Yu ,  Yaopeng Rong ,  Ke Xu ,  Qunbo Liu ,  Yi Ni ,  Longfei Li

IPC分类号： F24F11/64 ,  F25B1/10 ,  F24F11/30 ,  F24F11/86

CPC分类号： F24F11/30 ,  F24F11/64 ,  F24F11/86 ,  F25B1/10 ,  F25B2500/02 ,  F25B2500/26 ,  F25B2600/0251

摘要： A method for controlling the power-on or power-off of an air conditioner is provided. The method includes the following steps: determining whether a variable capacity compressor of the air conditioner is in a standby single-cylinder operation state before starting the air conditioner, where the variable capacity compressor is configured to be switchable between a single-cylinder operation state and a dual-cylinder operation state; if so, starting the air conditioner; if not, switching the variable capacity compressor to the standby single-cylinder operation state, and then starting the air conditioner. With this control method, regardless of whether the air conditioner is shut down because the power supply of the unit is cut off or because a power-off signal is received, the air conditioner can be started in a single-cylinder operation state in the next startup, so that the operation state of the cylinder is always determined when starting the air conditioner.

公开(公告)号：US20230375237A1

公开(公告)日：2023-11-23

申请号：US18029061

申请日：2021-09-29

申请人： Johnson Controls Tyco IP Holdings LLP

发明人： Michael Hemi Zamalis

IPC分类号： F25B41/20 ,  F25B31/02 ,  F25B1/10

CPC分类号： F25B41/20 ,  F25B31/026 ,  F25B1/10 ,  F25B2400/13

摘要： A compressor of a heating, ventilation, and air conditioning (HVAC) system includes a casing having an inner volume and an inner surface defining the inner volume, where the inner volume is configured to accommodate a rotor therein. The compressor also includes an economizer port formed in the casing and configured to inject a flow of fluid into the inner volume and a valve disposed within the economizer port and configured to regulate the flow of fluid into the inner volume. The valve has an inward-facing surface, and the inward-facing surface is aligned with the inner surface of the casing in a closed position of the valve.

公开(公告)号：US11796238B2

公开(公告)日：2023-10-24

申请号：US18093657

申请日：2023-01-05

申请人： DAIKIN INDUSTRIES, LTD.

发明人： Masaaki Takegami ,  Yoshikazu Uehara ,  Akitoshi Ueno

IPC分类号： F25B1/10 ,  F25B49/02 ,  F25B41/31 ,  F25B41/22 ,  F25B43/00

CPC分类号： F25B49/022 ,  F25B1/10 ,  F25B41/22 ,  F25B41/31 ,  F25B43/006 ,  F25B2600/0253 ,  F25B2700/193

摘要： If a first condition that an intermediate pressure corresponding to a pressure of an intermediate flow path is greater than a predetermined value is satisfied in an operation in which first, second, and third compressors are operated, the control unit executes a first action of increasing the number of revolutions of the third compressor.

公开(公告)号：US20230296297A1

公开(公告)日：2023-09-21

申请号：US18041474

申请日：2021-08-27

申请人： MAYEKAWA MFG. CO., LTD.

发明人： Takashige INABA

IPC分类号： F25B31/00 ,  F04B53/08 ,  F04B19/22 ,  F25B31/02 ,  F25B1/10

CPC分类号： F25B31/008 ,  F04B53/08 ,  F04B19/22 ,  F25B31/023 ,  F25B1/10

摘要： A compressor according to an embodiment includes: a cylinder; a piston configured to be reciprocable in the cylinder; a suction space capable of communicating with a working chamber formed by the cylinder and the piston; a discharge space capable of communicating with the working chamber; a partition wall portion disposed so as to surround the working chamber, and separating the suction space and the discharge space; and a cooling medium path formed in the partition wall portion.