公开(公告)号：US12018874B2

公开(公告)日：2024-06-25

申请号：US17195985

申请日：2021-03-09

申请人： Ingersoll-Rand Industrial U.S., Inc.

发明人： Lalitkumar Jamnadas Vaishnav

IPC分类号： F25B49/02 ,  F24F13/22 ,  F25B1/00 ,  F24F110/00

CPC分类号： F25B49/022 ,  F24F13/22 ,  F25B1/00 ,  F24F2110/00 ,  F25B49/02 ,  F25B2500/14 ,  F25B2600/0251 ,  F25B2600/0261 ,  F25B2700/11 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/21174

摘要： Methods are provided for controlling a refrigerated dryer of a gas compressor system. In an aspect, a control system, including a controller and a flow sensor, selectively operates in a power saving mode in which the controller shuts down a refrigerant compressor included in the dryer system when the flow sensor indicates that no compressed gas is flowing through the dryer. The control system uses input from a temperature sensor to determine whether to activate the compressor regardless of the flow of compressed gas through the dryer.

公开(公告)号：US20240077238A1

公开(公告)日：2024-03-07

申请号：US18273777

申请日：2021-02-02

申请人： Mitsubishi Electric Corporation

发明人： Yuki MIZUNO ,  Soshi IKEDA ,  Kosuke MIYAWAKI ,  Jun NISHIO ,  Yuji MOTOMURA ,  Hiroki WASHIYAMA

IPC分类号： F25B49/02 ,  F25B9/00 ,  F25B41/31 ,  F25B47/00

CPC分类号： F25B49/02 ,  F25B9/002 ,  F25B41/31 ,  F25B47/006 ,  F25B2700/21174

摘要： A refrigeration cycle device with a main circuit, a bypass circuit and a supercooling heat exchanger further includes: a controller to control an opening degree of the bypass expansion valve; a first sensor to detect a temperature at the refrigerant inflow side of the evaporator; and a second sensor to detect a pressure of the non-azeotropic mixed refrigerant flowing from the evaporator, wherein the controller controls the opening degree of the bypass expansion valve using temperatures of the evaporator, that is, the temperature at the refrigerant inflow side and a saturated gas temperature of the non-azeotropic mixed refrigerant calculated from the pressure so as to adjust a flow rate of the non-azeotropic mixed refrigerant flowing into the evaporator, to eliminate the temperature difference in the evaporator for suppressing uneven frost formation on the evaporator, and thus to prevent heat exchange performance from degrading.

公开(公告)号：US11781791B2

公开(公告)日：2023-10-10

申请号：US17253855

申请日：2019-05-23

申请人： Carrier Corporation

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

IPC分类号： F25B49/02 ,  F25B13/00 ,  F25B41/42

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

摘要： 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：US10077774B2

公开(公告)日：2018-09-18

申请号：US15346220

申请日：2016-11-08

申请人： Emerson Climate Technologies, Inc.

发明人： Stephen M. Seibel ,  Hung M. Pham

IPC分类号： F04C28/08 ,  F04C28/28 ,  F04B39/06 ,  F04B39/12 ,  F04B49/06 ,  F04C18/02 ,  F04C23/00 ,  F04C28/24 ,  F25B49/00 ,  F04C29/00 ,  F25B49/02 ,  F25B31/00

CPC分类号： F04C28/28 ,  F04B39/06 ,  F04B39/12 ,  F04B39/123 ,  F04B49/06 ,  F04B2203/0204 ,  F04B2203/0209 ,  F04C18/0215 ,  F04C23/008 ,  F04C28/08 ,  F04C28/24 ,  F04C29/0085 ,  F04C2210/227 ,  F04C2210/26 ,  F04C2240/403 ,  F04C2240/803 ,  F04C2240/81 ,  F04C2270/19 ,  F04C2270/80 ,  F25B31/006 ,  F25B49/005 ,  F25B49/022 ,  F25B2500/08 ,  F25B2500/19 ,  F25B2500/28 ,  F25B2600/021 ,  F25B2600/025 ,  F25B2600/2513 ,  F25B2700/151 ,  F25B2700/1931 ,  F25B2700/21 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/21163 ,  F25B2700/21174 ,  Y02B30/741 ,  Y10T137/0318 ,  Y10T137/85986

摘要： A system and method for a compressor includes a compressor connected to a condenser, a discharge line temperature sensor that outputs a discharge line temperature signal corresponding to a discharge line temperature of refrigerant leaving the compressor, and a control module connected to the discharge line temperature sensor. The control module determines a saturated condenser temperature, calculates a discharge superheat temperature based on the saturated condenser temperature and the discharge line temperature, and monitors a flood back condition of the compressor by comparing the discharge superheat temperature with a predetermined threshold. The control module increases a speed of the compressor when the discharge superheat temperature is less than or equal to the predetermined threshold.

公开(公告)号：US20170234564A1

公开(公告)日：2017-08-17

申请号：US15044243

申请日：2016-02-16

申请人： Lennox Industries Inc.

发明人： Rakesh GOEL ,  Derek PHILLIPS

IPC分类号： F24F11/00 ,  F24F3/14

CPC分类号： F24F11/77 ,  F24F1/0003 ,  F24F3/044 ,  F24F3/14 ,  F24F3/1405 ,  F24F11/30 ,  F24F11/52 ,  F24F2110/10 ,  F24F2110/12 ,  F24F2110/20 ,  F24F2120/20 ,  F24F2140/20 ,  F24F2221/16 ,  F25B39/028 ,  F25B49/02 ,  F25B2600/0253 ,  F25B2600/11 ,  F25B2700/02 ,  F25B2700/21171 ,  F25B2700/21174 ,  Y02B30/741

摘要： A heating, ventilation, and air conditioning (HVAC) system for regulating humidity of an enclosed space. The HVAC system includes an evaporator coil. A metering device is fluidly coupled to the evaporator coil. A variable-speed compressor is fluidly coupled to the condenser coil and the evaporator coil and a controller is operatively coupled to the variable-speed compressor. A humidity sensor is operatively coupled to the controller and exposed to the enclosed space. Responsive to a determination that the relative humidity of the enclosed space exceeds the maximum humidity threshold, the controller adjusts a speed of the variable-speed compressor to increase latent capacity of the HVAC system. Responsive to a determination that the relative humidity of the enclosed space falls below the minimum humidity threshold, the controller adjusts a speed of the variable-speed compressor to decrease latent capacity of the HVAC system.

公开(公告)号：US20170191732A1

公开(公告)日：2017-07-06

申请号：US15465269

申请日：2017-03-21

申请人： Lennox Industries Inc.

发明人： Yi Qu ,  H. Gene Havard ,  Jon Douglas ,  Jeff Mangum

IPC分类号： F25D21/02 ,  F25D21/00 ,  F25B47/02 ,  F25D17/06 ,  F24F11/00 ,  F25B13/00

CPC分类号： F25D21/02 ,  F24F11/30 ,  F24F11/41 ,  F24F11/42 ,  F25B13/00 ,  F25B47/02 ,  F25B2313/0294 ,  F25B2700/11 ,  F25B2700/15 ,  F25B2700/173 ,  F25B2700/19 ,  F25B2700/21174 ,  F25D17/06 ,  F25D21/002 ,  F25D21/006

摘要： In various implementations, frost in a vapor compression system may be controlled. A property of a fan may be determined. A determination may be made whether a frost event and/or a nonfrost event has occurred based at least partially on the determined fan property.

公开(公告)号：US09644887B2

公开(公告)日：2017-05-09

申请号：US14337691

申请日：2014-07-22

申请人： LG ELECTRONICS INC.

发明人： Myungjin Chung ,  Hyokeun Park ,  Jangseok Lee ,  Sangbong Lee ,  Hyoungkeun Lim

IPC分类号： F25D29/00 ,  F25D11/02 ,  F25D17/06

CPC分类号： F25D29/005 ,  F25B2700/21174 ,  F25B2700/21175 ,  F25D11/022 ,  F25D17/062 ,  F25D17/067 ,  F25D2700/10

摘要： A heat exchanger assembly, a refrigerator, and a method of controlling a refrigerator are provided. The heat exchanger assembly may include a heat exchanger provided on or at a side of a refrigerator body, the heat exchanger including a refrigerant tube, in which a refrigerant may flow, and at least one heat exchange fin, in which the refrigerant tube may be inserted, a temperature sensor disposed on or at an inlet-side or an outlet-side of the heat exchanger to detect a temperature of the refrigerant, and a sensor holder to fix a guide tube disposed on or at an inlet-side or outlet-side of the refrigerant tube and the temperature sensor in a state in which the guide tube is in contact with the temperature sensor.

公开(公告)号：US09644877B2

公开(公告)日：2017-05-09

申请号：US14437514

申请日：2012-11-22

申请人： Yutaka Aoyama

发明人： Yutaka Aoyama

IPC分类号： F25B39/04 ,  F25B49/02 ,  F25B13/00 ,  F24F1/08

CPC分类号： F25B49/022 ,  F24F1/08 ,  F25B13/00 ,  F25B49/02 ,  F25B49/027 ,  F25B2313/0233 ,  F25B2313/0314 ,  F25B2313/0315 ,  F25B2400/13 ,  F25B2500/12 ,  F25B2600/0253 ,  F25B2700/1933 ,  F25B2700/21174 ,  Y02B30/741

摘要： Frequency of a compressor is controlled so that an evaporating temperature reaches a target evaporating temperature during cooling operation, and, when refrigerant stagnation in a condenser of an outdoor unit is detected during cooling operation, a stagnation-resolving operation is implemented. The stagnation-resolving operation includes stagnation suppression control in which the target evaporating temperature is reduced within a range in which an evaporator does not freeze so as to increase a refrigerant circulation volume in the condenser, and stagnation-avoidance priority control which is implemented when implementation of the stagnation suppression control is not able to resolve stagnation, and in which an opening degree of an expansion valve is controlled to be opened and the target evaporating temperature is further reduced so as to further increase the refrigerant circulation volume.

公开(公告)号：US09639099B2

公开(公告)日：2017-05-02

申请号：US14360585

申请日：2012-11-28

申请人： BELIMO Holding AG

发明人： Peter Schmidlin ,  Norbert Lederle

IPC分类号： G05D23/19 ,  F24D3/14 ,  F24D19/10 ,  F24F11/00

CPC分类号： G05D23/1927 ,  F24D3/14 ,  F24D19/1015 ,  F24F11/64 ,  F24F11/84 ,  F24F2140/20 ,  F25B2700/135 ,  F25B2700/21174 ,  F25B2700/21175 ,  G05D23/1917 ,  G05D23/1931 ,  G05D23/1932 ,  Y02B30/762

摘要： The present disclosure provides methods and systems for regulating the room temperature in a room or in a plurality of rooms, the room temperature can be regulated by regulating the mass flow of a heat-carrying fluid flowing through a heat exchanger according to a determined current room temperature. In accordance with some embodiments, a temperature sensor in the room can be dispensed that can determine the current room temperature, in each case the mass flow of the heat carrying fluid through the heat exchanger and the flow temperature prevailing at the input to the heat exchanger and the return temperature prevailing at the output of the heat exchanger are measured, and that a temperature assigned to the determined values of the mass flow, the flow temperature and the return temperature is output as the current room temperature and used for regulation.

公开(公告)号：US20160298893A1

公开(公告)日：2016-10-13

申请号：US15077194

申请日：2016-03-22

申请人： True Manufacturing Co., Inc.

发明人： Kevin KNATT ,  Steven Lee TRULASKE, SR.

IPC分类号： F25C5/10 ,  F25B41/06 ,  F25C5/18 ,  F25C1/12 ,  F25C1/22

CPC分类号： F25C5/10 ,  F25B47/022 ,  F25B49/02 ,  F25B2341/065 ,  F25B2600/2501 ,  F25B2600/2513 ,  F25B2700/21174 ,  F25B2700/21175 ,  F25C1/12 ,  F25C2600/04 ,  F25C2700/12 ,  Y02B30/72

摘要： An ice maker for forming ice having a refrigeration system, a water system and a controller. The refrigeration system includes a freeze plate in which ice is formed and a hot gas valve for harvesting the ice therefrom. A harvest sensor is triggered when at least a portion of the ice is harvested from the freeze plate and at least one temperature sensor measures a temperature that indicates that all of the ice has been harvested from the freeze plate. The temperature sensors may include a temperature sensor for measuring the refrigerant temperature at the evaporator outlet, the refrigerant temperature at the evaporator inlet, and/or the temperature of the freeze plate. The controller closes the hot gas valve in response from the triggering of the harvest sensor and the temperature measured by the temperature sensor(s) indicating that all of the ice has been harvested from the freeze plate.

摘要翻译： 用于形成具有制冷系统的冰的制冰机，水系统和控制器。 制冷系统包括形成冰的冷冻板和用于从其中收获冰的热气阀。 当从冷冻板收集冰的至少一部分时，触发收获传感器，并且至少一个温度传感器测量指示所有冰已经从冷冻板收获的温度。 温度传感器可以包括用于测量蒸发器出口处的制冷剂温度，蒸发器入口处的制冷剂温度和/或冷冻板的温度的温度传感器。 响应于收集传感器的触发和由温度传感器测量的温度，控制器关闭热气阀，表明所有的冰已经从冷冻板中收获。