Diverse, Cascade Or Compound Refrigeration-producing System Patents (Class 62/175)
  • Patent number: 11486619
    Abstract: An air-conditioning system that performs a refrigeration cycle in a refrigerant circuit includes: an outdoor unit; a plurality of indoor units; a refrigerant connection pipe that connects the outdoor unit and the indoor units; and a first control valve disposed in the refrigerant connection pipe and that blocks a flow of refrigerant. The refrigerant connection pipe includes: a plurality of indoor-side pipes that each communicate with one of the indoor units; an outdoor-side pipe that communicates with two or more of the indoor-side pipes from an outdoor unit side; and a branch that connects the outdoor-side pipe and a group of two or more of the indoor-side pipes.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: November 1, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takuro Yamada, Masahiro Honda
  • Patent number: 11466881
    Abstract: A control device for a refrigerator system for cooling a load by using a plurality of refrigerators, said control device comprising a unit to control the number of operating units that changes the number of operating refrigerators according to the load rate, and a cold water temperature acquisition unit that acquires, via a temperature sensor, the temperature of cold water affected by the refrigerators. After a prescribed standby time from when the number of operating refrigerators was changed has elapsed, the unit to control the number of operating units changes the number of operating units and reduces the prescribed standby time when at least one of the cold-water temperature and the rate of change in the cold-water temperature satisfies a prescribed condition.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: October 11, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Yusuke Hazui, Koki Tateishi, Satoshi Nikaido, Yutaka Takenaka
  • Patent number: 11454436
    Abstract: A refrigerator and a method for controlling the same are disclosed. The refrigerator may minimize the size and material cost of the control system by controlling the internal temperature and the speed of a compressor using a thermostat used in the conventional low-capacity/low-cost refrigerator without using a system controller equipped with various sensors (internal sensors and/or external sensors) capable of controlling the internal temperature. In addition, since an inverter controller capable of controlling a BLDC compressor estimates the internal/external temperature based on operation information of the compressor, and determines the internal load, it may save energy and reduce vibrations and noise, which are the largest disadvantages of a constant-speed compressor, thereby improving satisfaction of the consumer. In addition, the BLDC compressor may be started and operated stably by applying a differentiated algorithm of the inverter controller.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: September 27, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung In Park, Hyo Jin Yoon, Pyeong Ki Park, Hyo Jae Shin, Jae Won Yang, Ho-Hyun Ryu, Hyung Gwan Je
  • Patent number: 11441797
    Abstract: Embodiments of the current disclosure include air pretreatment devices suitable for pretreatment of air received by air handler units. The air pretreatment devices can include an air intake configured to capture the outside air. A cooling coil system can process changes in the dry bulb and dew point temperatures of the captured outside air. The pretreated air can then be passed via an air outtake to the air handler. The cooling coil system can be coupled to at least a chilled water intake and a chilled water return line. Finally, a single water valve control unit located on either the chilled water intake or chilled water return line can be adjusted to direct a change in the dry bulb temperature and dew point temperature within the cooling coil system.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: September 13, 2022
    Assignee: Altaire Systems LLC
    Inventors: James Robert Meacham, James Ryan Johnston
  • Patent number: 11428430
    Abstract: The present disclosure discloses an air conditioning system, an operating method and an operating device of the air conditioning system. The air conditioning system includes multiple outdoor units and multiple indoor units. The multiple indoor units include a first indoor unit configured to have wired communication and a second indoor unit configured to have wireless communication. The multiple outdoor units includes a first model outdoor unit connected with the first indoor unit configured to have wired communication, a second model outdoor unit corresponding to the second indoor unit, and a main outdoor unit configured to receive communication information from the first indoor unit and/or the second indoor unit, determine a target outdoor unit for communication on the basis of the communication information, and send the communication information to the target outdoor unit for communication.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: August 30, 2022
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Wencan Wang, Jie Tang, Weiyou Yu, Tieying Ye, Zhongwen Deng, Dongfeng Lai, Quanzhou Liu, Cuiming Ma, Qiang Huang
  • Patent number: 11415330
    Abstract: The cooling systems and methods of the present disclosure involve modular fluid coolers and chillers configured for optimal power and water use based on environmental conditions and client requirements. The fluid coolers include wet media, a first fluid circuit for distributing fluid across wet media, an air to fluid heat exchanger, and an air to refrigerant heat exchanger. The chillers, which are fluidly coupled to the fluid coolers via pipe cages, include a second fluid circuit in fluid communication with the air to fluid heat exchanger and a refrigerant circuit in thermal communication with the second fluid circuit and in fluid communication with the air to refrigerant heat exchanger. Pipe cages are coupled together to allow for expansion of the cooling system when additional cooling capacity is needed. The fluid coolers and chillers are configured to selectively operate in wet or dry free cooling mode, partial free cooling mode, or mechanical cooling mode.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: August 16, 2022
    Assignee: INERTECH IP LLC
    Inventors: John Costakis, Ming Zhang, Earl Keisling, Ken Nguyen
  • Patent number: 11413933
    Abstract: A thermal management system for an electric vehicle includes an interior air conditioning part including an air inflow part, an air discharge part, a cooling core, a heating core arranged between the cooling core and the air discharge part, and an adjustment door. The adjustment door is selectively adjustable to control whether air from the cooling core may flow into the heating core. A heat transfer line connects an electric part core to the heating core for transferring that heat of the electric part to the heating core, in order to allow heat dissipation of the electric part through the heating core.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: August 16, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Shin Lee, Man Ju Oh, So La Chung, Jae Woong Kim
  • Patent number: 11408627
    Abstract: An air-conditioning apparatus includes a plurality of indoor units. Each of the indoor units includes a heat-medium flow adjusting valve and a heat exchanger. The heat-medium flow adjusting valve adjusts the flow rate of a heat medium that flows into the heat-medium flow adjusting valve, and causes the heat medium to flow out of the heat-medium flow adjusting valve. The heat exchanger causes heat exchange to be performed between the heat medium and air. The heat medium flows into the heat exchanger from an inflow side of the heat exchanger. The inflow side of the heat exchanger is connected to an outflow side of the heat-medium flow adjusting valve. The plurality of indoor units are connected in series.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: August 9, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shigeo Takata, Takuya Kontani
  • Patent number: 11391482
    Abstract: An air conditioning system includes a plurality of air conditioning indoor units installed in a target space, a plurality of remote control devices corresponding to the air conditioning indoor units, and a controller. The remote control device has a command input to set the corresponding air conditioning indoor unit or the remote control device. The controller performs a process based on the command input to the remote control device. Each remote control device includes a communicating unit that performs a communication with the corresponding air conditioning indoor unit, and a short range wireless communicating unit that performs a short range wireless communication with a communicating apparatus having a function of the short range wireless communication. The command is input by receiving a signal transmitted from the communicating apparatus by the short range wireless communication, at the short range wireless communicating unit.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: July 19, 2022
    Assignee: Daikin Industries, Ltd.
    Inventors: Tatsuya Higuchi, Asuka Yagi, Takeshi Yoshimura, Ryousuke Yamamoto, Keiya Nagahara
  • Patent number: 11378318
    Abstract: A refrigeration apparatus comprises a first refrigerant system and a second refrigerant system. The first refrigerant system comprises a first compressor, a cascade heat exchanger and a first evaporator. The second refrigerant system comprises a second compressor, a second condenser, the cascade heat exchanger and a second evaporator. The second compressor has an economizer port, and the cascade heat exchanger is connected to the economizer port of the second compressor.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: July 5, 2022
    Assignee: Vilter Manufacturing LLC
    Inventor: Jean-Louis Picouet
  • Patent number: 11371735
    Abstract: The disclosure an air conditioning system and a method of controlling the same. During the heating operation of the A2W indoor unit, the A2A valve that connects the outdoor unit to the A2A indoor unit is closed to prevent the inflow of the refrigerant into the A2A indoor unit, so it is possible to prevent performance degradation by improving performance loss due to refrigerant bypass to a stationary A2A indoor unit. In addition, in order to improve the performance due to deterioration of heating performance, the system itself can cope with a control algorithm without any additional hardware configuration, thereby minimizing the installation cost.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: June 28, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woong Sun, Yong Sang Kong, Chang Soo Lim, Sung Jin Cho, Sung Tae Kim, Chang Seo Park, Dong Seok Bae, Kwang Nam Shin
  • Patent number: 11351842
    Abstract: A transport refrigeration system (TRS) includes a first heat transfer circuit including a first compressor, a condenser, a first expansion device, and a cascade heat exchanger. The first compressor, the condenser, the first expansion device, and the cascade heat exchanger are in fluid communication such that a first heat transfer fluid can flow therethrough. The TRS includes a second heat transfer circuit including a second compressor, the cascade heat exchanger, a second expansion device, and an evaporator. The second compressor, the cascade heat exchanger, the second expansion device, and the evaporator are in fluid communication such that a second heat transfer fluid can flow therethrough. The first heat transfer circuit and the second heat transfer circuit are arranged in thermal communication at the cascade heat exchanger such that the first heat transfer fluid and the second heat transfer fluid are in a heat exchange relationship at the cascade heat exchanger.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: June 7, 2022
    Assignee: Thermo King Corporation
    Inventors: Stephen A. Kujak, Kenneth J. Schultz, Jeffrey B. Berge, Panayu Robert Srichai, Vladimir Sulc, Michal Kolda, John R. Sauls
  • Patent number: 11334135
    Abstract: Methods and systems for controlling distribution of a main power supply and backup power supply can include detecting an output load on the main power supply from one or more electronic devices in excess of a threshold, which may correspond to a high efficiency band of the main power supply, and causing a backup power supply to provide an amount of supplemental power to the one or more electronic devices based in part on a difference between the output load and the threshold.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: May 17, 2022
    Assignee: Amazon Technologies, Inc.
    Inventors: Ligong Wang, Darin Frink
  • Patent number: 11320166
    Abstract: An air conditioning system includes: outdoor units; indoor units each communicating with any one of the outdoor units by a first communication method; and a central control device communicating with each of the outdoor units by a second communication method and controlling the outdoor units and the indoor units. One of the outdoor units generates, by using a first address used for communication performed using the first communication method, a second address used for communication performed using a second communication method, generates a second address for one or more of the indoor units by using a first address, and obtains second addresses from another outdoor unit and the central control device. The central control device obtains, from each of the outdoor units, second addresses of the outdoor unit and each indoor unit, and controls operations of the outdoor units and the indoor units by using the second addresses obtained.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: May 3, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Satoshi Hanai, Masahiro Ishihara, Hiroaki Kotake
  • Patent number: 11268731
    Abstract: An air conditioner includes a main control unit, and a motor-driving control unit. The main control unit transmits, at every first time, an instruction for rotating the motor to the motor-driving control unit. The motor-driving control unit outputs, on the basis of the instruction, an instruction for rotating the motor to the inverter output unit. When the motor-driving control unit does not receive a new instruction for rotating the motor from the main control unit before the first time elapses from a time when the motor-driving control unit receives the instruction for rotating the motor from the main control unit last, the motor-driving control unit outputs an instruction for continuing operation based on the instruction for rotating the motor received from the main control unit at an immediately preceding time to the inverter output unit.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: March 8, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yoshihito Ono
  • Patent number: 11266042
    Abstract: A refrigeration system and refrigeration method for a data center are disclosed. The refrigeration system includes: a first heat exchanger disposed on a back plate of an indoor cabinet of the data center, and a phase-change heat-exchange cooling tower disposed outdoor of the data center. The first heat exchanger and the phase-change heat-exchange cooling tower are communicated by a secondary refrigerant delivery pipeline. The phase-change heat-exchange cooling tower transfers heat carried in the secondary refrigerant into air and condenses the secondary refrigerant to a liquid again; the secondary refrigerant employs a phase-change heat-exchange working medium. An air pump is disposed in the phase-change heat-exchange cooling tower and on a by-pass of the secondary refrigerant delivery pipeline to pressurize the secondary refrigerant in gas-state delivered in the secondary refrigerant delivery pipeline to increase the condensing pressure for condensing the secondary refrigerant to a liquid again.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 1, 2022
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Hu Tang, Xiaozhong Li, Binghua Zhang
  • Patent number: 11204431
    Abstract: Disclosed herein is a system suitable for X-ray detection. The system comprises a detector and cooling system configured to control temperature of the detector and prevent condensation of water vapor on the detector. The detector comprises an X-ray absorption layer and electronics layer. The X-ray absorption layer comprises a plurality of pixels, each pixel configured to count numbers of X-ray photons incident thereon whose energy falls in a plurality of bins, within a period of time. The electronics layer comprises an electronic system configured to add the numbers of X-ray photons for the bins of the same energy range counted by all the pixels. The cooling system comprises a chiller configured to lower temperature and moisture level of air, and a fan configured to blow the air that is cooled and dried to the detector.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: December 21, 2021
    Assignee: SHENZHEN XPECTVISION TECHNOLOGY CO., LTD.
    Inventors: Peiyan Cao, Yurun Liu
  • Patent number: 11199351
    Abstract: An air conditioner includes a compressor having a compressor motor including coils, an indoor fan having a fan motor, a connection switching unit that switches a connection state of the coils between a first connection state and a second connection state in which a line voltage is lower than a line voltage in the first connection state, and a controller that controls the compressor motor, the fan motor, and the connection switching unit. The controller provides a stop period during which rotation of the compressor motor stops before the connection switching unit switches the connection state of the coils, and rotates the fan motor for at least a time period within the stop period.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: December 14, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuji Hirosawa, Masahiro Nigo
  • Patent number: 11187434
    Abstract: A heat pump apparatus includes: a refrigerant circuit which circulates refrigerant; a heat medium circuit which makes a heat medium flow; a heat exchanger which cause heat exchange to be performed between the refrigerant and the heat medium; and an indoor unit which houses at least the heat exchanger. The heat exchanger has a double-wall structure. The indoor unit includes a container which houses the heat exchanger. In the container, a first opening port is formed to communicate with an outdoor space without communicating with an indoor space.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: November 30, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yasuhiro Suzuki
  • Patent number: 11181287
    Abstract: A heating mode control method of an air conditioner, comprises: obtaining an indoor temperature and calculating the difference between the indoor temperature and an indoor target temperature to obtain an indoor temperature difference as air conditioner running at heating mode; performing a coil temperature control process as the indoor temperature difference in a set indoor temperature difference range, wherein the coil temperature control process including: obtaining an indoor coil temperature and controlling the frequency of the compressor according to the indoor coil temperature and a coil target temperature. The application of the method can achieve the purpose of improving the heating effect by increasing the outlet air temperature, thus improving the heating performance of an air-conditioner.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: November 23, 2021
    Assignee: QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD.
    Inventors: Beibei Xu, Juke Liu, Lin Ma, Jian Miao, Xiangjun Li, Jinlong Liu, Huihua Wang, Yongfu Cheng
  • Patent number: 11169491
    Abstract: A series connection having multiple safety switches. Here, the series connection includes wiring connecting the safety switches. The safety switches can output signals. Depending on the registration of these signals by additional safety switches of the series connection it will be detected whether the wiring is laid out for connecting a master, and whether such a master is connected. Depending on this, the operation of the safety switches is predetermined.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: November 9, 2021
    Assignee: Euchner GmbH + Co. KG
    Inventors: Timo Siefert, Melissa Joos, Frederic Hahn, Zeiler Gerd
  • Patent number: 11137171
    Abstract: A transcritical R-744 refrigeration system comprising at least one first compressor for compressing an R-744 refrigerant, a gas cooler for cooling the R-744 refrigerant compressed by the at least one first compressor, a throttling device for decreasing the pressure of the cooled R-744 refrigerant, a receiver for separating the R-744 refrigerant, a first heat exchanger for exchanging heat between the cooled R-744 refrigerant and the R-744 vapors separated by the receiver before the R-744 vapors are transported to the at least one first compressor, and an integrated R-744 refrigerant-based air-conditioning assembly comprising a second plurality of compressors and an air conditioner comprising a second heat exchanger and an evaporator, wherein the system is operatable in a dehumidification mode wherein the R-744 vapors exiting the gas cooler are fed through the second heat exchanger to heat and dehumidify the passing ambient air before being fed to the receiver.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: October 5, 2021
    Assignee: SYSTEMES LMP INC.
    Inventors: Gaétan Lesage, Jordan Kantchev
  • Patent number: 11116114
    Abstract: In one embodiment, a data center cooling system includes one or more information technology (IT) rooms having multiple electronic racks that generate heat. An external cooling unit is positioned above the IT rooms and is configured to provide cooling fluid and to exchange heat carried by the cooling fluid. The external cooling unit has a supply line to distribute cooling fluid downwardly to the IT rooms. As the cooling fluid cools the electronic racks, the cooling fluid heats up and at least partially turns to vapor which rises due to convection. The external cooling unit also has a return line to return the rising vapor to the external cooling unit, which cools the vapor. The vapor changes phase to liquid and is recirculated to the IT rooms.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: September 7, 2021
    Assignee: BAIDU USA LLC
    Inventor: Tianyi Gao
  • Patent number: 11067315
    Abstract: A temperature control system includes: first and second refrigerator units; a first fluid flow apparatus that allows a first fluid to flow therethrough and that is cooled by the first refrigerator unit; a second fluid flow apparatus that allows a second fluid to flow therethrough and that is cooled by the second refrigerator unit; and a valve unit that is configured to allow the first fluid or the second fluid to selectively flow out therefrom. The first refrigerator unit has, in a medium-temperature-side refrigerator, a medium-temperature-side first expansion valve and a medium-temperature-side second expansion valve. A medium-temperature-side second evaporator corresponding to the medium-temperature-side second expansion valve and a low-temperature-side condenser of a low-temperature-side refrigerator constitute a cascade condenser.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: July 20, 2021
    Assignee: Shinwa Controls Co., Ltd
    Inventors: Masakatsu Yamawaki, Teiichirou Ueda, Shigehiko Ono, Ryoji Ichiyama
  • Patent number: 11060749
    Abstract: The present disclosure relates to an air conditioner, an air conditioner controlling system, and an air conditioner controlling method. The air conditioner controlling system includes one or more controlled air conditioners, a main controlling air conditioner having control authority over, from among the one or more controlled air conditioners, one or more controlled air conditioners that belong to an upper rank group corresponding to the main controlling air conditioner, and a sub-controlling air conditioner having control authority over, from among the one or more controlled air conditioners, one or more controlled air conditioners that belong to a first lower rank group.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: July 13, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Hun Hur, Min Gyu Kim, Chang-Yong Lee
  • Patent number: 10993354
    Abstract: A data center system includes: a data center including an electronic device and an air conditioner configured to cool the electronic device; a cooling device including a first cooler configured to cool cooling water to be supplied to the data center by an air blow and a second cooler configured to cool the cooling water by heat exchange; and a control device configured to control the cooling device, wherein the control device is configured to: acquire outside temperature information from a temperature sensor provided outside the data center; calculate cooling water temperature information to be set to the cooling device by adding a cooling temperature difference based on a cooling ability of the first cooler to the outside temperature information; and set the cooling water temperature information to the cooling device.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: April 27, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Satoshi Inano, Hiroyoshi Kodama, Shigeto Suzuki, Toshio Sugimoto
  • Patent number: 10989429
    Abstract: Provided is an air conditioning system that achieves energy conservation and comfortableness. In the air conditioning system (100), an outdoor-air conditioner (10) sucks outdoor-air (OA) and supplies the outdoor-air as supply air (SA) from an air handling unit (30). An indoor-air conditioner (50) cools or heats indoor-air (IA) that is an air inside a target space (SP) by using an indoor unit (70) and supplies the air to the target space (SP). A general control unit (90) controls performs cooperative load control in which an operating capacity of the outdoor-air conditioner (10) and an operating capacity of the indoor-air conditioner (50) are controlled in cooperation in accordance with a status of the outdoor-air (OA), a status of the indoor-air (IA), an operation status of the outdoor-air conditioner (10), and/or an operation status of the indoor-air conditioner (50).
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: April 27, 2021
    Assignee: Daikin Industries, Ltd.
    Inventors: Yasunori Okamoto, Naotoshi Fujita, Kouji Tatsumi, Masaaki Kawagishi
  • Patent number: 10962262
    Abstract: A method for controlling a vapour compression system (1) is disclosed, the vapour compression system (1) comprising at least one compressor (2, 16), a heat rejecting heat exchanger (3), a high pressure expansion device (4, 15, 17), a receiver (5), an evaporator expansion device (6), an evaporator (7) and a gas bypass valve (8), arranged in a refrigerant path. It is registered that the gas bypass valve (8) is malfunctioning or saturated, and a pressure value for a pressure prevailing inside the receiver (5) is obtained. Finally, the vapour compression system (1) is controlled in order to control a gaseous refrigerant supply to the receiver (5) to adjust the pressure prevailing inside the receiver (5) to reach a target pressure level.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: March 30, 2021
    Assignee: Danfoss A/S
    Inventors: Kristian Fredslund, Kenneth Bank Madsen, Jan Prins, Frede Schmidt
  • Patent number: 10956230
    Abstract: Various examples are disclosed for workload placement using forecast data. Forecast data for workloads and providers during a predefined period of time in the future is considered when identifying stressed providers and the feasibility of a workload move. Workloads with demand spikes at different future times can be matched by stacking current demand and forecast demand by timestamps. The possibility of stress can be reduced by making moves preemptively and considering forecast demand when evaluating the feasibility of a workload move.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: March 23, 2021
    Assignee: VMware, Inc.
    Inventors: Parikshit Santhana Gopalan Gopalan, Sandy Lau, Wei Li, Leah Nutman, Paul Pedersen, Yu Sun
  • Patent number: 10948884
    Abstract: Systems and methods for distributing load of an energy plant are disclosed herein. A target load of at least a first device and a second device of the energy plant is obtained. A first power consumption of the first device and the second device predicted to result from operating the first device and the second device according to a first combination of set points to satisfy the target load is predicted. A second power consumption of the first device and the second device predicted to result from operating the first device and the second device according to a second combination of set points to satisfy the target load is predicted. The first power consumption and the second power consumption are compared, and a combination of set points rendering lower power consumption is selected to operate the energy plant.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: March 16, 2021
    Assignee: Johnson Controls Technology Company
    Inventors: Ryan C. Beaty, Graeme Willmott, Matthew J. Asmus, Shawn A. Schlagenhaft, Jared Fread
  • Patent number: 10935274
    Abstract: A compressor system includes a variable-speed compressor and a fixed-speed compressor. A control unit is operatively coupled to the variable-speed compressor and is operatively coupled to the fixed-speed compressor. A sensor is operatively coupled to the control unit and disposed in an enclosed space. The sensor measures at least one of a temperature and a relative humidity of the enclosed space and determines an HVAC load of the enclosed space. Responsive to a determination of the HVAC load, the control unit directs operation of the variable-speed compressor and the fixed-speed compressor.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: March 2, 2021
    Assignee: Lennox Industries Inc.
    Inventors: Eric Berg, Ajay Iyengar
  • Patent number: 10912229
    Abstract: A cooling system and a multi-function heat exchanger design for electronics racks has one or more liquid-to-liquid heat exchangers (or their functions) and one or more liquid-to-air heat exchangers (or their functions). Each liquid-to-liquid heat exchanger has a rack-liquid channel, and an external-liquid channel, the rack-liquid channel and the external-liquid channel being fluidly isolated from each other, and thermally coupled to each other to transfer thermal energy between rack-liquid that circulates through the rack-liquid channel and external-liquid that circulates through the external-liquid channel. The one or more liquid-to-air heat exchangers each have an air path that circulates air between the electronics racks and ambient space around the electronics racks, the air path being thermally coupled to an external-liquid channel of the liquid-to-air heat exchanger to transfer thermal energy between the air and the external-liquid.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: February 2, 2021
    Assignee: BAIDU USA LLC
    Inventor: Tianyi Gao
  • Patent number: 10901384
    Abstract: An equipment management system includes a control terminal and a management apparatus. The control terminal transmits equipment information related to equipment. The management apparatus includes a CPU and an interface. The management apparatus controls the control terminal through a network. The CPU executes calculation of information processing that is based on information received from the control terminal, determines a load level corresponding to a load of the information processing by the calculation unit, and executes reduction control to reduce the load on the calculation unit in accordance with the load level. The interface being transmits the load level to the control terminal. The control terminal changes, in accordance with the load level, a communication condition of equipment information to be transmitted to the management apparatus.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: January 26, 2021
    Assignee: Daikin Industries, Ltd.
    Inventors: Kenichi Nagahara, Kenta Nohara
  • Patent number: 10900674
    Abstract: Provided is an air conditioning apparatus, a central control apparatus of the air conditioning apparatus, a remote control apparatus of the air conditioning apparatus, an indoor apparatus of the air conditioning apparatus and a method of controlling thereof. The central control apparatus of the air conditioning apparatus includes: a plurality of branched ports connected to a pipe of a plurality of indoor apparatuses and provided with predetermined identification information; and a central controller configured to identify the plurality of indoor apparatuses connected through the branched port, based on the identification information, and configured to control an operation of components contained in the air conditioning apparatus based on a result of the identification.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: January 26, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Hun Hur, Chang-Yong Lee, Min Gyu Kim, Yun-Nam Kim
  • Patent number: 10895411
    Abstract: An apparatus includes a high side heat exchanger, a flash tank, a subcooler, an expansion valve, a load, and a compressor. The high side heat exchanger removes heat from a refrigerant. The flash tank stores the refrigerant. The subcooler heat exchanger receives the refrigerant. During a first mode of operation, the load uses the refrigerant to cool a space proximate the load and the compressor compresses the refrigerant. During a second mode of operation, the subcooler heat exchanger directs the refrigerant to the expansion valve, transfers heat from the refrigerant from the flash tank to the refrigerant from the expansion valve and directs the refrigerant from the expansion valve to the compressor. During the second mode of operation, the compressor compresses the refrigerant from the subcooler heat exchanger and directs the compressed refrigerant from the subcooler heat exchanger to the load to defrost the first load.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: January 19, 2021
    Assignee: Heatcraft Refrigeration Products LLC
    Inventors: Shitong Zha, Michael Hollister
  • Patent number: 10883748
    Abstract: Method for controlling a compressor system, arranged in a heat pumping circuit, said compressor system being designed to be operated at at least two different compressor capacity stages, said compressor capacity stages being adjusted by a capacity adjustment system enabling switching from one compressor capacity stage to another compressor capacity stage, said capacity adjustment system being controlled by a capacity selection signal defining the compressor capacity stage to be selected, said method comprising determining a capacity set value, determining a decision quantity on the basis of said capacity set value, determining a calculated capacity average value on the basis of capacity selection signals generated before, comparing said calculated capacity average value with said decision quantity and changing said compressor capacity stage to the next higher stage if the calculated capacity average value is below the decision quantity or changing said compressor capacity stage to the next lower stage if the
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: January 5, 2021
    Assignee: BITZER Kuehlmaschinenbau GmbH
    Inventors: Manuel Saboy, Kresten Kjaer Sørensen, Morten Heinild
  • Patent number: 10871315
    Abstract: The present invention relates to a refrigerant circuit for a refrigerator and/or freezer, with at least one body and with at least one cooled interior space arranged in the body, wherein the refrigerant circuit includes at least one evaporator and at least one condenser as well as at least one compressor, wherein the condenser is partly or completely arranged in a liquid bath that at least partly absorbs the condensation heat in operation of the refrigerant circuit.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: December 22, 2020
    Assignees: LIEBHERR-HAUSGERATE LIENZ GMBH, LIEBHERR-HAUSGERATE OCHSENHAUSEN GMBH
    Inventors: Martin Kerstner, Jochen Hiemeyer, Michael Freitag
  • Patent number: 10845107
    Abstract: The present disclosure relates to the field of air conditioning technology. In particular, it involves a control method and control system based on a variable speed AC compressor.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: November 24, 2020
    Inventor: Jianliang Zhang
  • Patent number: 10844862
    Abstract: A hydraulic pumping system for pumping a flow of aqueous liquid, for HVAC and potable water systems, through a plurality of hydraulic pump assemblies and mating branching feeder pipes extending between a main inlet pipe and a main outlet pipe for outputting the total flow of water, each of said pump assemblies in operative association with a mating feeder pipe to control aqueous liquid flow through said associated feeder pipe, wherein each of the hydraulic pump assemblies comprises an electric motor, mechanically coupled to a centrifugal pump and a variable frequency drive (VFD) electrically coupled to the motor. A controller is electrically coupled via a communication channel to the VFD of each of the hydraulic pump assemblies, the controller comprising a programmable device programmed to control the speed of each of the motors via the connected VFD.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: November 24, 2020
    Assignee: Taco, Inc.
    Inventor: Andrew Tucker
  • Patent number: 10823441
    Abstract: An air conditioner control device includes: a receiver that receives measurement values for ambient temperatures of air conditioners installed inside a facility; and a controller that adjusts setting temperatures for cooling operations (or heating operations) of each of the air conditioners to values that are less (or values that are greater) than the measurement values for each of the air conditioners, when at least one of the measurement values received by the receiver is greater (or less) than a target temperature inside the facility.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: November 3, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Kaoru Satou
  • Patent number: 10808615
    Abstract: A chiller plant includes a first pump module having at least one first pump module wall; a second pump module having at least one second pump module wall; and a plurality of chiller modules each having at least one chiller module wall. The first pump module, the second pump module, and the plurality of chiller modules may be placed together to form the chiller plant. The at least one first pump module wall, the at least one second pump module wall, and the chiller module walls may collectively form a perimeter wall around at least a portion of the chiller plant. Other embodiments of the chiller plant, and methods for its use, are described herein.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: October 20, 2020
    Assignee: Stellar Energy Americas, Inc.
    Inventors: Marija Kustura, Curtis Lovelace, Jasen Wilkinson
  • Patent number: 10757834
    Abstract: A method and apparatus for determining a water chilling unit for cooling a data center are provided. The method includes: acquiring a current water output parameter, a current water input parameter, a current water flow parameter and a current outdoor temperature parameter of each water chilling unit of the data center; pre-processing the water output parameter, the water input parameter, the water flow parameter and the outdoor temperature parameter to obtain a characteristic parameter of each water chilling unit; importing the characteristic parameters of each water chilling unit into a pre-established machine learning model to obtain the current electric power of each water chilling unit; and determining a water chilling unit for cooling the data center on the basis of a preset cooling load, a rated cooling capacity of the water chilling unit and the current electric power of each water chilling unit.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: August 25, 2020
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Zhiming Luo, Tianyu Zhou, Binghua Zhang
  • Patent number: 10739041
    Abstract: A condenser and evaporator system includes (i) a condenser system positioned to receive a gaseous refrigerant from a compressor system and configured to condense the gaseous refrigerant into a liquid refrigerant, (ii) a controlled pressure receiver (CPR) positioned to receive and store the liquid refrigerant, (iii) an evaporator system including a conduit, an expansion valve, and a fan, and (iv) a controller. The conduit is positioned to receive the liquid refrigerant from the CPR. The expansion valve is positioned between the CPR and the conduit, and configured to facilitate modulating an amount of the liquid refrigerant that flows into the conduit from the CPR. The fan is positioned to facilitate providing a cooling operation to an arca associated with the evaporator system through evaporation of the liquid refrigerant flowing through the conduit.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: August 11, 2020
    Assignee: Johnson Controls Technology Company
    Inventor: Thomas P. Carter
  • Patent number: 10718558
    Abstract: An auxiliary thermosiphon has an auxiliary refrigerant conduit with an auxiliary evaporation segment in thermally conductive connection to an interior wall of the freezer. The auxiliary refrigerant conduit contains an auxiliary refrigerant that is isolated from the primary refrigerant of the primary cooling apparatus. The auxiliary refrigerant conduit also extends upward to an auxiliary condensation segment of the auxiliary refrigerant conduit at an elevation above the auxiliary evaporation segment. A thermal bridge is in physical thermal contact with the auxiliary condensation segment and in physical thermal contact with a portion of a primary evaporation segment of the primary refrigeration apparatus. Heat is transported through the thermal bridge from the auxiliary thermosiphon to the primary refrigerant conduit and consequently to the primary refrigeration apparatus for removal from the freezer.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: July 21, 2020
    Assignee: Global Cooling, Inc.
    Inventors: David M. Berchowitz, Todd Richards
  • Patent number: 10712026
    Abstract: An air handling system is disclosed that includes an integral chilled water refrigeration system. The air handling system additionally includes a first coil section that provides cooling and a second coil section that provides heating. The second coil section and associated terminal units are in fluid communication with the first refrigeration system.
    Type: Grant
    Filed: December 2, 2017
    Date of Patent: July 14, 2020
    Inventor: Daniel P. McCarty
  • Patent number: 10684076
    Abstract: An air conditioning tower includes a tower casing, a compressor provided in the tower casing, a heat exchanger provided in the tower casing and connected to the compressor, an evaporative cooling system which includes at least one multiple-effect evaporative condenser, and a centrifugal fan. The multiple-effect evaporative condenser includes a pumping device, a first cooling unit, a second cooling unit, and a bottom water collecting basin. The first cooling unit includes a first water collection basin, a plurality of first heat exchanging pipes, and a first fill material unit. The second cooling unit includes a second water collection basin, a plurality of second heat exchanging pipes, and a second fill material unit.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: June 16, 2020
    Inventor: Lee Wa Wong
  • Patent number: 10628564
    Abstract: An air conditioner connection system includes an air conditioner having a first device connected via a power line in a communication-capable manner, and a second device capable of performing radio communication with the air conditioner. The air conditioner includes an authentication process control unit that controls the first device to perform an authentication process when a starting request of the authentication process for performing power carrier communication is received from the second device, the first device includes an authentication process unit that performs the authentication process under the control of the air conditioner, and the second device includes an authentication start process unit that transmits the starting request of the authentication process to the air conditioner.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: April 21, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yoshiro Murakami
  • Patent number: 10619880
    Abstract: A masterless building device system for controlling an environmental condition of a building, includes a first building device and a second building device. The first building device includes a first processing circuit configured to determine, via a first sensor of the first building device, a first environmental condition value of the environmental condition. The first processing circuit is configured to broadcast the first environmental condition value to a second building device via a network. The first processing circuit is configured to receive, via the network, a second environmental condition value broadcast by the second building device, generate a calculated environmental condition value based on the first environmental condition value and the second environmental condition value, and control the environmental condition based on the calculated environmental condition value.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: April 14, 2020
    Assignee: Johnson Controls Technology Company
    Inventors: Kraig D. Ritmanich, Christopher R. Amundson, Aron M. Seiler
  • Patent number: 10614642
    Abstract: The present disclosure provides a method for unlocking an air conditioning unit, including: when a server receives first identity information and unit information from a mobile terminal, performing a verification of the first identity information based on the unit information; and sending an unlocking instruction to the air conditioning unit corresponding to the unit information when the first identity information is verified, such that the air conditioning unit performs an unlocking operation based on the unlocking instruction. The present disclosure also provides a device for unlocking an air conditioning unit and a server. The present disclosure realizes unlocking the air conditioning unit when the first identity information is verified, thus ensuring that the current operator (user) is an authorized operator, and thus further avoiding problems that the air conditioning unit still have malfunctions and that irreversible damages are caused to the air conditioning unit.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: April 7, 2020
    Inventors: Yongfeng Xu, Hongwei Li, Boqi Liang, Qihui Bu, Shilong Dong, Xiaohong Wu
  • Patent number: 10612800
    Abstract: HVAC systems and methods for delivering highly efficient heating and cooling using ambient air as the working fluid. A plenum has an upstream inlet and a downstream outlet, each in fluid communication with a target space to be heated or cooled. Ambient air is drawn into the inlet at an incoming pressure and an incoming temperature. The inlet and outlet are gated, respectively, by first and second rotary pumps. A heat exchanger in the plenum transfers heat into or out of the air, provoking a change in air volume within the plenum. The systems and methods are configured to operate essentially between the working temperatures, THIGH and TLOW. This technique, called Convergent Refrigeration or counter-conditioning, provides for the reduction of excess refrigerant lift by optimization of the heat transfer temperature. Two Convergent Refrigeration systems can be arranged back-to-back through a common heat exchanger for ultra-high efficiency operation.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: April 7, 2020
    Inventor: Gilbert S. Staffend