Diverse, Cascade Or Compound Refrigeration-producing System Patents (Class 62/175)
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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
  • Patent number: 10591100
    Abstract: A refrigerant hammer arrestor includes a housing having an internal compartment communicating with a refrigerant line, a piston received in the housing and dividing the internal compartment into a first chamber and a second chamber and a damping mechanism to dampen displacement of the piston within the housing. Various refrigerant loops are also described incorporating a refrigerant hammer arrestor.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: March 17, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Kevin James Brohl, Trent Greear Sutherland
  • Patent number: 10539341
    Abstract: A multiple-evaporation cooling system in which the intermediate heat exchanger of first evaporation line includes at least a segment of the physically arranged expansion device in contact with at least a portion of the second row of evaporation and the intermediate heat exchanger's second evaporative line includes at least one expansion device segment physically disposed in contact with at least one portion of a first evaporation line. Considering the temperature of the intermediate heat exchanger of first evaporation line influences the temperature of the refrigerant flowing in the second line of evaporative expansion device and the temperature of the intermediate heat exchanger of the second evaporative line influences the temperature of the refrigerant flowing in the first line of evaporative expansion device. Features include varying the restriction of the respective expansion devices and then unduly inhibit mass transfer of refrigerant between at least two distinct evaporation.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: January 21, 2020
    Assignee: Embraco—Industria De Compressores E Solucoes EM Refrigeracao LTDA.
    Inventors: Dietmar Erich Bernhard Lilie, Gustavo Portella Montagner
  • Patent number: 10533765
    Abstract: A chiller plant including at least two chillers operating at different temperatures are disclosed. Process fluid circuits of the chillers can form fluid communication when, for example, one or more of the at least two chillers may fail, so that the other chiller(s) of the at least two chillers may provide backup operation to the failed chiller(s).
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: January 14, 2020
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Lee R. Cline, John A. Murphy
  • Patent number: 10520213
    Abstract: Air conditioner units, including methods of operation, are provided herein. The air conditioner unit may include an indoor portion, an outdoor portion, and a compressor in fluid communication between the indoor portion and the outdoor portion. The method may include setting an operating temperature of the indoor portion based on a primary temperature target, determining a humidity value at the indoor portion, comparing the determined humidity value to a humidity threshold, resetting the operating temperature as a temporary temperature target when the determined humidity value is above the humidity threshold and the primary temperature target is reached at the indoor portion of the air conditioner, and directing refrigerant compression at the compressor based on the operating temperature.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: December 31, 2019
    Assignee: Haier US Appliance Solutions, Inc.
    Inventors: Bryan Isaac D'Souza, Richard Dustin Henderson
  • Patent number: 10495325
    Abstract: An outdoor unit of the heat pump includes a compressor, an oil separator provided in a discharge path of the compressor, an outdoor-unit connecting pipe connecting an intake path of the compressor and an outdoor unit of an another heat pump for supplying a refrigerant to the outdoor unit of the another heat pump, an oil supply pipe extending from a predetermined position of the oil separator and connecting to the outdoor-unit connecting pipe, an on-off valve provided on the oil supply pipe, an expansion valve provided in a portion of the outdoor-unit connecting pipe between a connecting part connected to the intake path and a connecting part connected to the oil supply pipe, and a refrigerant filling port provided in a portion of the outdoor-unit connecting pipe between the connecting part and the expansion valve.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: December 3, 2019
    Assignee: YANMAR CO., LTD.
    Inventors: Hideshi Okada, Norihiro Okuda, Tomoya Yoshimura
  • Patent number: 10465683
    Abstract: A compressor includes two parallel arranged primary cylinders and a secondary cylinder arranged in the downstream of the two primary cylinders. The secondary cylinder includes a cylinder body and a sliding vane. The sliding vane is arranged inside the cylinder body. A locking part is used for locking and unlocking the sliding vane. The locking part is clamped with and separated from the sliding vane. When the sliding vane is in the locking position, the sliding vane is locked in a seal cavity inside the secondary cylinder, and the locking end of the locking part extends to the side at which the secondary cylinder is located. The compressor can be switched between a single-stage mode and a double-stage mode. In the condition of light load, energy efficiency can be improved and the waste of energy sources is avoided. An air conditioning system and compressor control method are also disclosed.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: November 5, 2019
    Assignee: Gree Green Refridgeration Technology Center Co., Ltd. of Zhuhai
    Inventors: Shebing Liang, Liying Deng, Guomang Yang, Jian Zhang, Jia Xu, Yusheng Hu
  • Patent number: 10461954
    Abstract: Systems and methods for sequencing HVAC equipment of an HVAC system using data recorded in situ to build a model capable of making predictions about equipment efficiency and using that information, in combination with predictions about building load, to produce an operational sequence for the HVAC equipment that promotes an improved or optimized overall energy efficiency for the HVAC system. In one embodiment, the process is automated and utilizes Bayesian computational models or algorithms to generate an initial sequence. The process reduces engineering hours and may advantageously provide a means to predict potential sequencing problems for similar types of HVAC equipment.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: October 29, 2019
    Assignee: OPTIMUM ENERGY LLC
    Inventors: Thomas Jones, Ian Dempster, Clark Matthys, Peng Chen
  • Patent number: 10436490
    Abstract: A working-fluid circuit may include an indoor heat exchanger, a variable-capacity compressor and a control module. The variable-capacity compressor pumps working fluid through the indoor heat exchanger. The control module may control the compressor and operate the compressor in one of a first capacity mode and a second capacity mode based on a demand signal, outdoor-air-temperature data and a compressor runtime.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: October 8, 2019
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Hung M. Pham, Shane J. Angle, Edward J. Trudeau, Jr., Chetan Sowani
  • Patent number: 10429088
    Abstract: Body air outlets 10d of an air-conditioning-apparatus indoor unit 100 each has a substantially trapezoidal shape in plan view and are each defined by a body-air-outlet outer side wall 10d2, a body-air-outlet inner side wall 10d4, and a pair of body-air-outlet end walls 10d1. The body-air-outlet outer side wall 10d2 is provided with a deflection guide 2 at each of long-side ends thereof. The body-air-outlet end walls 10d1 are each provided with a sloping guide 3. The deflection guide 2 has a deflection-guide upper surface 2a that gradually projects toward the body-air-outlet inner side wall 10d4 in a direction toward a body open face 10e (toward a downstream side) and in a direction toward the central part of the body air outlet 10d. The sloping guide 3 has a sloping-guide upper surface 3a that gradually projects toward the central part of the body air outlet 10d as the sloping guide 3 extends closer to the body open face 10e (toward the downstream side).
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: October 1, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takashi Ikeda, Masahiko Takagi, Makoto Kurihara
  • Patent number: 10391833
    Abstract: A method for controlling a superheat degree of a vehicle air-conditioning system, and a vehicle air-conditioning system are provided. The method comprises: acquiring an actual superheat degree in real time, a preset superheat degree and a feed-forward information which influences a change of the actual superheat degree; and adjusting an opening degree of an electronic expansion valve in real time according to the actual superheat degree, the preset superheat degree and the feed-forward information that are acquired, so as to control the superheat degree of the vehicle air-conditioning system.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: August 27, 2019
    Assignee: Hangzhou Sanhua Research Institute Co., Ltd.
    Inventors: Li Tang, Rongrong Zhang, Edwin J. Stanke
  • Patent number: 10371420
    Abstract: An air conditioning device for a vehicle having a compressor that supplies a high-pressure refrigerant, an air heating heat exchanger heating air that is to be blown into a vehicle cabin, a pressure reduction part expanding and decompressing the high-pressure refrigerant so as to supply an intermediate-pressure refrigerant and a low-pressure refrigerant, a first low-pressure side heat exchanger exchanging heat between the intermediate-pressure refrigerant and a heating medium other than the air, a second low-pressure side heat exchanger cooling the heating medium by exchanging heat between the low-pressure refrigerant and the heating medium, a first heating medium circuit through which the heating medium cooled in the second low-pressure side heat exchanger circulates, and a heating medium-air heat exchanger.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: August 6, 2019
    Assignee: DENSO CORPORATION
    Inventors: Yoshiki Katoh, Masamichi Makihara, Kazutoshi Kuwayama, Norihiko Enomoto, Kengo Sugimura
  • Patent number: 10371406
    Abstract: A system and a method are provided including a controller for a refrigeration or HVAC system having a compressor rack with at least one compressor. The controller communicates with a tracking module configured to diagnose health of a compressor in the compressor rack. In response to rated performance data for the compressor being unavailable, the tracking module is configured to generate baseline data for the compressor and to diagnose health of the compressor by comparing operational data of the compressor to the baseline data for the compressor. In response to the rated performance data for the compressor being available, the tracking module is configured to diagnose health of the compressor by comparing the operational data of the compressor to the rated performance data for the compressor.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: August 6, 2019
    Assignee: Emerson Climate Technologies Retail Solutions, Inc.
    Inventors: John Wallace, Franklin Beltran, Frank S. Wallis, Paul L. Fullenkamp, Karen Richard
  • Patent number: 10371426
    Abstract: A climate-control system may include a variable-capacity compressor unit and a control module controlling the compressor unit. The compressor unit may be operable in a first capacity mode and in a second capacity mode that is higher than the first capacity mode. The control module may be configured to switch the compressor unit among a shutdown state, the first capacity mode and the second capacity mode based on a demand signal and outdoor-air-temperature data.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: August 6, 2019
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Hung M. Pham, Shane J. Angle, Edward J. Trudeau, Jr., Chetan Sowani
  • Patent number: 10364998
    Abstract: An environmental control device (100, 200), such as a thermostat, is disclosed. The environmental control device (100, 200) has one or more terminals (104, 104a-104i) for connecting to an HVAC system (14) and performs over current management of the terminal (104, 104a-104i) when connected to the HVAC system (14).
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: July 30, 2019
    Assignee: Siemens Schweiz AG
    Inventors: Pei Jin Li, Zhan Jun Ding, William J. Fenske, Michael S. Schuler
  • Patent number: 10309363
    Abstract: An integrated automated idle reduction system is disclosed. The system may include an APU and various controllers providing automation. The system may enable automating features, such as automatically controlling various power sources, engine start, engine stop, the APU, and accessory systems. The APU may be an engine, battery and/or other power source that is selectably connectable to vehicle systems to provide electrical power while the OEM engine of the vehicle is not running. The APU may also provide electrical power while the OEM engine is not running. Additionally, the APU may drive an air conditioning compressor while the OEM engine is not running, such as to keep the cab of a vehicle cool. Prior cold starting the OEM engine, the APU may warm engine coolant, and the integrated automated idle reduction system may circulate the warmed coolant through the OEM engine in preparation for starting.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: June 4, 2019
    Assignee: ECOMPLETE, LLC
    Inventors: Debra Johnson, Russ Webster
  • Patent number: 10288324
    Abstract: A pumped refrigerant cooling system having cooling units with associated pumping units for providing working fluid to the cooling unit to enable cooling of a space. The pumped refrigerant cooling system also includes a redundant pumping unit which is activated when a primary pumping unit associated with a cooling unit becomes inactive. The primary pumping unit is deactivated in favor of the redundant pumping unit. Once the primary pumping unit is placed in a condition suitable for reactivation, the redundant pumping unit is deactivated, and the primary pumping unit is reactivated.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: May 14, 2019
    Assignee: Vertiv Corporation
    Inventors: Douglas E. Werner, James Hom, Tien-Chih Lin, Norman Chow, Richard G. Brewer, Brandon R. Leong
  • Patent number: 10267531
    Abstract: According to an embodiment of the present disclosure a cooling and heating system includes a plurality of branch holes configured to provide different refrigerants to at least one indoor units. The device also includes a plurality of valves configured to respectively correspond to the plurality of branch holes wherein each valve is configured to select a refrigerant to be provided to at least one indoor unit. The different refrigerants are provided from an outdoor unit. The device further includes a plurality of ports configured to respectively correspond to the plurality of branch holes. The device also includes a processor configured to, in response to an input through the plurality of ports that include an indoor unit information including refrigerant information, control each of the plurality of valves to provide refrigerant corresponding to the refrigerant information through a branch hole corresponding to a port that the refrigerant information is input.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: April 23, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-kue Lee, Jeong-mun Yeom
  • Patent number: 10254016
    Abstract: A refrigeration cycle apparatus includes: a low-stage refrigeration cycle including a low-stage compressor, a low-stage condenser, a low-stage pressure reducing device, and a low-stage evaporator, and circulating low-stage refrigerant; a high-stage refrigeration cycle including a high-stage compressor, a high-stage condenser, a high-stage pressure reducing device, and a high-stage evaporator, and circulating high-stage refrigerant; a cascade condenser exchanging heat between the low-stage refrigerant in the low-stage condenser and the high-stage refrigerant in the high-stage evaporator, and a controller. The low-stage refrigerant is a refrigerant that undergoes disproportionation. The low-stage refrigerant is maintained at a pressure lower than a disproportionation pressure at which the low-stage refrigerant undergoes disproportionation.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: April 9, 2019
    Assignees: Mitsubishi Electric Corporation, AGC INC.
    Inventors: Hiroshi Sata, Tomotaka Ishikawa, Takashi Ikeda, Yusuke Arii
  • Patent number: 10215476
    Abstract: A refrigeration device has a housing with an inner liner, a lower housing plate, and a beam connecting the inner liner and the lower housing plate. A reinforcing member is fixed on the beam for enhancing a strength of a bottom wall. A cavity is formed between the reinforcing member and a front wall. Thermal insulation material formed by foaming is disposed inside and outside the cavity. The reinforcing member and the front wall of the beam enclose the cavity, so that the thermal insulation material enables the beam and the reinforcing member to form a whole for bearing a force. The assembly is thus improved for preventing deformation of the bottom wall due to impact.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: February 26, 2019
    Assignee: BSH Hausgeraete GmbH
    Inventors: Roberto Bajak, Xiangfan Guo, Wuba Lei, Rainer Spaag, Jinghui Chen, Yueqiang Lu
  • Patent number: 10179500
    Abstract: An ejector-type refrigeration cycle includes an ejector module integrated with a gas-liquid separation device. A length of an inlet pipe that connects a liquid-phase refrigerant outflow port of an ejector module to a refrigerant inflow port of an evaporator is shorter than a length of a suction pipe that connects a gas-phase refrigerant outflow port of the ejector module to a suction port of the compressor.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: January 15, 2019
    Assignee: DENSO CORPORATION
    Inventors: Hiroshi Kataoka, Shun Kurata, Isamu Takasugi, Haruyuki Nishijima, Youhei Nagano, Yoshiyuki Yokoyama
  • Patent number: 10174966
    Abstract: An energy saving controller for an air handler having a heater and a dual speed fan adapted to switch between a first speed and a second higher speed via a gas furnace controller, the energy saving controller being configured to be mounted between a thermostat and the gas furnace controller, and having: input terminals configured to connect to corresponding thermostat output terminals and receive output signals; a microcontroller configured to: process the output signals into revised signals; and cause the gas furnace controller to alternate between the first speed and the second higher speed to mimic a behavior of a variable speed fan; drivers configured to receive the revised signals and use the revised signals to actuate mechanical relays; wherein the mechanical relays are configured to actuate the fan or the compressor via ESC output terminals.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: January 8, 2019
    Inventor: James Leych Lau