Processes Patents (Class 62/56)
  • Patent number: 11326798
    Abstract: A refrigerant leak detection and mitigation system/method for use in heating, ventilation, and air conditioning (HVAC) systems that incorporates a refrigerant gas sensor (RGS), sensor signal conditioner (SSC), alarm status indicator (ASI), and digital control processor (DCP) is disclosed. The RGS detects ambient refrigerant gas (ARG) and indicates this as a refrigerant sensor voltage (RSV) to the SSC. The DCP and SSC form a closed control loop (CCL) in which the SSC electrical characteristics are adjusted by the DCP such that the RSV is continuously and dynamically recalibrated to account for background refrigerant gas levels, changes in ambient air conditions, RGS manufacturing tolerances, and other field-specific operational conditions that impact the RGS detection capabilities. The DCP is configured to log alarms to the ASI if a RGS refrigerant leak is detected and optionally shutdown one or more HVAC system components such as a specific air handler leaking refrigerant.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: May 10, 2022
    Inventors: Kenneth Ray Green, Douglas Hiram Morse
  • Patent number: 11313597
    Abstract: The present invention provides a heat pump system which comprises a compressor (110), a mode switch valve assembly (120), a mode switch flow path, and a first heat exchanger, a second heat exchanger and a heat recovery heat exchanger respectively connected between the mode switch valve assembly and the mode switch flow path, wherein the mode switch flow path is provided with a first flow path (160), a second flow path (170) and a third flow path (180) which converge at an intersection point, and at least the first flow path and the second flow path are respectively provided with a throttling section (161,171), and the first flow path, the second flow path and the third flow path are controllably switched on/off to realize different function modes. Therefore, a heat pump unit having a heat recovery function is provided, which has advantages of simple structure and high operational reliability, etc.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: April 26, 2022
    Assignee: CARRIER CORPORATION
    Inventors: Guangyu Shen, Jingkai Weng
  • Patent number: 11279205
    Abstract: A method for operating a coolant circuit of a vehicle cooling system in an AC mode and in a heating mode, implemented by a heat pump function, having an evaporator branch including an evaporator and a first expansion element, a coolant compressor, an AC and heat pump branch, having an outer condenser or gas cooler, as a heat pump evaporator having a second expansion element. The AC and heat pump branch is connected to the coolant compressor via a first blocking element and to the evaporator branch via the second expansion element, a heating branch having an inner heating condenser or heating gas cooler and a second blocking element, connected downstream thereto.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: March 22, 2022
    Assignee: AUDI AG
    Inventors: Dirk Schroeder, Christian Rebinger
  • Patent number: 11274862
    Abstract: A compressor system includes at least two compressors. A suction equalizing tube fluidly couples the at least two compressors. A plumbing assembly fluidly couples to the first compressor and the second compressor. The plumbing assembly comprises an outlet to each compressor of the at least two compressors. A pressure differential between the at least two compressors is created so as to facilitate maintenance of a desired fluid level in the at least two compressors.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: March 15, 2022
    Assignee: LENNOX INDUSTRIES INC.
    Inventors: Patric Ananda Balan Thobias, Abdul Rehman, Rakesh Goel, Siddarth Rajan
  • Patent number: 11221159
    Abstract: A method of controlling a ceiling type air conditioner including a panel located on a ceiling surface, outlets formed at positions corresponding to four sides of the panel, a first vane group for opening and closing the outlets located at two opposing sides, and a second vane group for opening and closing the outlets located at the other two opposing sides includes performing a dynamic airflow mode in which an indoor temperature reaches a set temperature by controlling rotation angles of the first vane group and the second vane group, and calculating a pleasant airflow index Y for determining a pleasant feeling of a user at the set temperature. The pleasant airflow index is calculated using the indoor temperature, the rotation angle of the first vane group or the second vane group, an air volume, a distance from a floor surface and an airflow position as variables.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: January 11, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Juyoun Lee, Soojin Kang, Jusu Kim
  • Patent number: 11175080
    Abstract: A refrigeration cycle apparatus includes a refrigeration circuit in which non-azeotropic refrigerant mixture circulates. The refrigeration circuit includes a compressor, an outdoor heat exchanger, an indoor heat exchanger, an expansion valve, and a four-way valve. The four-way valve is configured to assume a first state and a second state. The outdoor heat exchanger includes a plurality of refrigerant flow paths and a linear flow path switching valve configured to switch connections of the plurality of refrigerant flow paths between a series state in which the non-azeotropic refrigerant mixture flows through the plurality of refrigerant flow paths in series and a parallel state in which the non-azeotropic refrigerant mixture flows through the plurality of refrigerant flow paths in parallel. A controller switches the linear flow path switching valve between the series state and the parallel state when a multi-way valve is in the second state.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: November 16, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takumi Nishiyama, Kosuke Tanaka, Mitsuru Kawashima
  • Patent number: 11175074
    Abstract: A refrigeration cycle device, comprising: a compressor configured to compress a refrigerant; an outdoor air heat exchanger configured to exchange heat between the refrigerant and outside air located outside a target space; an indoor air heat exchanger configured to exchange heat between the refrigerant and inside air located inside the target space; a water heat exchanger configured to exchange heat between the refrigerant and water; a four-way valve located between an indoor port on the indoor air heat exchanger, an outdoor port on the outdoor air heat exchanger, an input port on the compressor, and an output port on the compressor; a bypass refrigerant line connecting the indoor port to the outdoor port; and a controllable valve located on the bypass refrigerant line, the controllable valve being configured to have an open state that passes the refrigerant and a closed state that prohibits passage of the refrigerant.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: November 16, 2021
    Assignee: Mitsubishi Electric US, Inc.
    Inventor: Joseph Paul Bush
  • Patent number: 11118833
    Abstract: A method of operating a transport refrigeration system including: controlling, using a controller (30), a plurality of components of the transport refrigeration system, the transport refrigeration system comprising a refrigerated trailer (108) and a refrigeration unit (22) configured to provide refrigerated air to the refrigerated trailer, the controlling includes operating at least one of the refrigeration unit and a battery system (190); powering, using an external power source (400), the refrigeration unit when the transport refrigeration system is connected to the external power source; detecting, using the controller, when the external power source is disconnected from the transport refrigeration system; detecting, using the controller, a connection to the battery system when the external power source is disconnected; activating the battery system when the external power source is disconnected; and powering, using the battery system, a select group of components of the refrigeration unit when the externa
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: September 14, 2021
    Assignee: CARRIER CORPORATION
    Inventors: Ciara Poolman, Robert A. Chopko
  • Patent number: 10876749
    Abstract: An air conditioner includes an indoor introduction air path configured to introduce air into an indoor space and an outdoor discharge air path configured to discharge air to an outdoor space, wherein the outdoor discharge air path includes an air path in which heat exchange is performed with the air introduced into the indoor space, and a by-pass path in which heat exchange is not performed with the air introduced into the indoor space, and the air conditioner further includes a controller configured to control the air discharged to the outdoor space so that the air discharged to the outdoor space flows to one of the air paths, in which the heat exchange is performed, and the by-pass path.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: December 29, 2020
    Assignee: KYUNGDONG NAVIEN CO., LTD.
    Inventors: Won Jae Jin, Ju Hyuk Lee
  • Patent number: 10808984
    Abstract: According to certain embodiments, a method comprises determining a liquid outlet temperature setpoint for refrigerant discharged from a liquid outlet of a subcooler. The liquid outlet corresponds to a hot-side path of the subcooler that receives refrigerant directly from a tank, cools the refrigerant by an exchange of heat with a cold-side path of the subcooler that receives the refrigerant from the tank via an inlet expansion valve, and discharges the refrigerant to an evaporator via an outlet expansion valve. The method further comprises determining a superheat setpoint for the refrigerant discharged to a compressor via a vapor outlet of the cold-side path. The superheat setpoint is determined based on the liquid outlet temperature setpoint. The method further comprises adjusting a temperature of the refrigerant discharged to the compressor based on the superheat setpoint.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: October 20, 2020
    Assignee: Heatcraft Refrigeration Products LLC
    Inventor: Andrew Hjortland
  • Patent number: 10746447
    Abstract: An apparatus includes a microchannel heat exchanger, a load, a compressor, and a controller. The microchannel heat exchanger removes heat from a refrigerant. The load uses the refrigerant to remove heat from a space proximate the load. The compressor compresses the refrigerant from the load. The controller determines a discharge temperature of the refrigerant at the compressor and predicts a saturation temperature of the refrigerant between the compressor and the microchannel heat exchanger. The controller also determines a discharge superheat by subtracting the saturation temperature from the discharge temperature and triggers an alarm if the discharge superheat is below a threshold temperature.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 18, 2020
    Assignee: Lennox Industries Inc.
    Inventors: Rakesh Goel, Eric Giles, Siddarth Rajan
  • Patent number: 10684053
    Abstract: A vapor compression system that includes a controller. The controller includes instructions for switching between first and second modes of operation of the vapor compression system. The controller activates a first compressor and a second compressor of the vapor compression system in the first mode of operation in response to a temperature level and a humidity level exceeding a threshold temperature and a threshold humidity level, respectively. And in the second mode of operation, the controller activates the first compressor in response to only the humidity level exceeding the threshold humidity level.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: June 16, 2020
    Assignee: Johnson Controls Technology Company
    Inventor: Jay C. Walser
  • Patent number: 10648711
    Abstract: A DC-powered refrigeration system may include controls configured to switch between available DC power supplies and manage the refrigeration system in accordance with one or more methods. The one or more methods of the control system may include multiple tiers of power management, including, e.g., maximization of power usage when on a photovoltaic power supply to subcool a refrigerated load.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: May 12, 2020
    Assignee: SolarXWorks, LLC
    Inventors: Scott Brown, Blake Barthelmess, Tor Hartmann, Donald McGraw
  • Patent number: 10612823
    Abstract: A condenser for a vapor compression system includes a shell and a tube bundle. The shell has a refrigerant inlet and a refrigerant outlet. The tube bundle includes a plurality of heat transfer tubes disposed inside the shell. Refrigerant discharged from the refrigerant inlet is supplied onto the tube bundle. The heat transfer tubes extend generally parallel to the longitudinal center axis of the shell. The heat transfer tubes are arranged to form a first vapor passage extending generally vertically along a first passage lengthwise direction through at least some of the heat transfer tubes. The first vapor passage has a first minimum width measured perpendicularly relative to the first passage lengthwise direction and the longitudinal axis. The first minimum width is larger than a tube diameter of the heat transfer tubes, and the first minimum width is smaller than four times the tube diameter.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 7, 2020
    Assignee: DAIKIN APPLIED AMERICAS INC.
    Inventor: Louis A. Moreaux
  • Patent number: 10544380
    Abstract: Disclosed herein is a mixed composition for a refrigerator, the mixed composition containing: a refrigerant containing at least one unsaturated fluorinated hydrocarbon compound selected from compounds represented by the following molecular formula (1): CpFrHs (1), provided that the compound has one or more carbon-carbon unsaturated bond in a molecule; and a refrigerator lubricating oil containing, as a major component, a polyoxyalkylene glycol compound represented by the following general formula (2), and containing a phenothiazine compound in an amount of 1.0% by mass or more based on the total amount of the refrigerator lubricating oil: R1—[(OR2)m—OR3]n (2). A mixed composition for a refrigerator is provided having a lower possibility of autoignition in a high temperature environment even during unexpected leakage in a refrigerator using a refrigerant containing a slightly flammable refrigerant. A refrigerator lubricating oil is provided that is capable of being applied to the mixed composition.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: January 28, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Masato Kaneko
  • Patent number: 10514194
    Abstract: A refrigerating appliance includes a refrigerant line having a compressor and a condenser. A thermal exchange media is delivered from the condenser and through the refrigerant line to at least a freezer evaporator of a plurality of evaporators, wherein the thermal exchange media leaving the freezer evaporator defines spent media that is returned to the compressor. A multi-directional outlet valve selectively delivers the thermal exchange media to the freezer evaporator, wherein the multi-directional outlet valve also selectively delivers the thermal exchange media to at least one secondary evaporator of the plurality of evaporators to define a partially-spent media that is delivered to the freezer evaporator.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: December 24, 2019
    Assignee: Whirlpool Corporation
    Inventors: Amit A. Avhale, Rishikesh Vinayak Kulkarni, E. Calvin Pickles, Yan Zhang, Vijaykumar Sathyamurthi
  • Patent number: 10508838
    Abstract: A radiative cooler is provided having a thermally insulated vacuum chamber housing that is configured to support a vacuum level of at least 10?5 Torr, an infared-transparent window that is sealably disposed on top of the thermally insulated vacuum chamber and is transparet in the range of 8-13 ?m, a selective emitter disposed inside the chamber, a mirror cone on the infared-transparent window, a selective emitter inside the chamber and is configured to passively dissipate heat from the earth into outer space through the infared-transparent window and is thermally decoupled from ambient air and solar irradiation but coupled to outer space, a heat exchanger with inlet and outlet pipes disposed below the selective emitter to cool water flowing through the pipe, a sun shade disposed vertically outside the chamber to minimize direct solar irradiation, and a mirror cone to minimize downward atmospheric radiation.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: December 17, 2019
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Zhen Chen, Linxiao Zhu, Aaswath Raman, Eli A. Goldstein, Shanhui Fan
  • Patent number: 10480846
    Abstract: A failure determiner is provided to perform a failure diagnosis to successively evaluate functions of the refrigerant circuit and components forming the refrigerant circuit for a plurality of evaluation items. If the failure diagnosis is interrupted, the failure determiner has a restarting function to restart the failure diagnosis from an intermediate point of the failure diagnosis.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: November 19, 2019
    Assignee: Daikin Industries, Ltd.
    Inventors: Yuusuke Fujimoto, Naoki Nakatani, Hisaaki Takaoka, Norio Iga
  • Patent number: 10465273
    Abstract: A process for depositing, with forward progression, graphene on the surface of a metallic or metallized continuous reinforcer, at the periphery of which is positioned a layer of surface metal chosen from copper, nickel and copper/nickel alloys, comprises at least one stage of flame spray pyrolysis (“FSP”), under a reducing atmosphere, of a carbon precursor which generates, in the flame, at least one carbon-based gas such as carbon monoxide which is sprayed onto the surface of the reinforcer in forward progression, and is decomposed thereon to form one or more graphene layers at the surface of the surface metal; an additional stage of graphene functionalization makes it possible to adhere the reinforcer to a polymer matrix such as rubber.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: November 5, 2019
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Wendelin Jan Stark, Robert Nikolaus Grass, Milan Fedurco, Antonio Delfino, Jean-Paul Meraldi
  • Patent number: 10295205
    Abstract: A gravity-assisted heat pipe cooling source cold storage system and chiller set. The cold storage system includes a gravity-assisted heat pipe, a cold storage pool, a heat exchanging and cold condensing device, and a heat exchanger pipe. A lower end of the gravity-assisted heat pipe is arranged in the cold storage pool, and an upper end of the gravity-assisted heat pipe is arranged in the heat exchanging and cold condensing device. The heat exchanger pipe is buried underground, and includes a central pipe and a side pipe. Upper ends of the central pipe and the side pipes are communicated with an inlet and outlet of the heat exchanging and cold condensing device, respectively. Lower ends of the central pipe and the side pipes are communicated with each other. The system employs the heat exchanger pipe to provide a cooling source for the gravity-assisted heat pipe.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: May 21, 2019
    Assignee: NANJING CANATAL DATA-CENTRE ENVIRONMENTAL TECH. CO., LTD.
    Inventors: Weixing Zhang, Zongqin Zhang, Yi Yuan, Lingyun Wang
  • Patent number: 10226980
    Abstract: A system for cooling a battery. The system has a cabin cooling refrigerant pathway including an orifice tube through which refrigerant flows to an evaporator. A battery cooling refrigerant pathway includes a thermal expansion valve (TXV) through which refrigerant flows to a chiller. An accumulator is in receipt of refrigerant from both the cabin cooling refrigerant pathway and the battery cooling refrigerant pathway. A battery coolant loop includes a coolant pathway for directing coolant from the chiller to the battery to cool the battery. The coolant is cooled by the chiller.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: March 12, 2019
    Assignee: DENSO CORPORATION
    Inventors: Zhiwei Shan, Kota Sakamoto
  • Patent number: 10203127
    Abstract: An HVAC system includes an indoor unit, an outdoor unit, a thermostat, and a remote control device. The indoor unit comprises a first variable speed drive (VSD) to control a speed of HVAC rotary components within the indoor unit, and the outdoor unit comprises a second VSD to control a speed of HVAC rotary components within the outdoor unit. The thermostat in communication with the indoor unit and the outdoor unit comprises a communication interface, and a system controller in communication with the communication interface. The remote control device transmits a signal to the system controller to alter the speed of the HVAC rotary components, where the HVAC rotary components operate at a high speed mode which is above the preset speed limit of the respective HVAC rotary component to achieve an enhanced cooling mode.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: February 12, 2019
    Assignee: Trane International Inc.
    Inventors: Jason Thomas LeRoy, Kirby N. Bicknell, Christopher Blake Smith, John Hughes, Gregory S. Brown
  • Patent number: 10125755
    Abstract: A cryopump includes a cryopanel, a cryocooler which is configured to cool the cryopanel, and includes a cryocooler motor configured to drive the cryocooler and a cryocooler inverter configured to control an operating frequency of the cryocooler motor, and a control unit configured to control the cryocooler to perform a cool-down operation by which a temperature of the cryopanel is decreased from room temperature to a standard operating temperature. The control unit includes an operating frequency determination unit configured to determine an operating frequency of the cryocooler motor within an operating frequency range having an upper limit operating frequency and outputs the operating frequency to the cryocooler inverter, and an upper limit adjustment unit configured to decrease the upper limit operating frequency based on a decrease in a temperature of the cryopanel during the cool-down operation.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: November 13, 2018
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventor: Kakeru Takahashi
  • Patent number: 10036587
    Abstract: A refrigerator includes a storage compartment formed in a cabinet of the refrigerator by a fixed insulation wall, the storage compartment being provided with an access opening. The refrigerator also includes a door rotatably provided to the cabinet to open and close the access opening, a drawer provided in the storage compartment, a camera fixed to a ceiling of the storage compartment to photograph both a first region for storing of food arranged in an external space of the drawer and a second region for storing of food arranged in an internal space of the drawer, and a controller configured to separate, through a capturing time of a picture containing both the first region and the second region, a first region picture and a second region picture from the picture to individually divide and store the first region picture and the second region picture.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: July 31, 2018
    Assignee: LG Electronics Inc.
    Inventors: Kwanhyung Kim, Samnyol Hong, Sungdu Kwon, Ikkyu Lee, Myoungju Lee, Jeonghwan Kim
  • Patent number: 9915471
    Abstract: A refrigerator includes a storage compartment formed in a cabinet of the refrigerator by a fixed insulation wall, the storage compartment provided with an access opening, a door rotatably provided to the cabinet to open and close the access opening, a drawer provided in the storage compartment, a camera fixed to a ceiling of the storage compartment to photograph both a first region for storing of food arranged in an external space of the drawer in the storage compartment and a second region for storing of food arranged in an internal space of the drawer in the storage compartment, and a controller to separate, through a capturing time of a picture containing both the first region and the second region, a first region picture and a second region picture from the picture to individually divide and store the first region picture and the second region picture.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: March 13, 2018
    Assignee: LG Electronics Inc.
    Inventors: Kwanhyung Kim, Samnyol Hong, Sungdu Kwon, Ikkyu Lee, Myoungju Lee, Jeonghwan Kim
  • Patent number: 9890994
    Abstract: A refrigerator includes a storage compartment formed in a cabinet of the refrigerator by a fixed insulation wall, the storage compartment being provided with an access opening. The refrigerator also includes a door rotatably provided to the cabinet to open and close the access opening, a drawer provided in the storage compartment, a camera fixed to a ceiling of the storage compartment to photograph both a first region for storing of food arranged in an external space of the drawer and a second region for storing of food arranged in an internal space of the drawer, and a controller configured to separate, through a capturing time of a picture containing both the first region and the second region, a first region picture and a second region picture from the picture to individually divide and store the first region picture and the second region picture.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: February 13, 2018
    Assignee: LG Electronics Inc.
    Inventors: Kwanhyung Kim, Samnyol Hong, Sungdu Kwon, Ikkyu Lee, Myoungju Lee, Jeonghwan Kim
  • Patent number: 9822996
    Abstract: An additive heat transfer unit (AHTU) can be part of or added to an air source heat pump HVAC system. The heat pump system can include a compressor, an expansion valve, first and second air source heat exchangers, and a reversing valve. The system can have a cooling mode and a heating mode, such that in the cooling mode the first air source heat exchanger functions as an evaporator and the second air source heat exchanger functions as a condenser, this being reversed in the heating mode. The AHTU can include a liquid source heat exchanger that can be used to increase the efficiency of the system.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: November 21, 2017
    Inventor: David Deng
  • Patent number: 9661872
    Abstract: In at least some embodiments, a carbonated beverage is formed by filling a container with a beverage liquid, adding solid carbon dioxide, sealing the container, and then limiting the development of overpressure within the container. In some embodiments, overpressure within a container may be limited by an adsorber material element. In some embodiments, overpressure within a container may be limited through agitation of a sealed container.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: May 30, 2017
    Assignee: PepsiCo, Inc.
    Inventors: Taher Shabbir Dawoodi, John A. Eaton, Youssef El-Shoubary, Robert Martin Lowery, Herriot Moise
  • Patent number: 9599118
    Abstract: A system and method for controlling a system that includes fixed speed and variable speed compressors are described. The method generally allows the system, for example, a heating, ventilating, and air condition (HVAC) system that includes fixed speed and variable speed compressors, to maximize unit modulating capability. The method allows the use of a variable speed compressor that is relatively smaller, which can lead to cost savings, easier installation, manufacturing, etc.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: March 21, 2017
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: John Qianghua Zhou, Roger Joseph Voorhis, Caleb Ryan Joiner, Benjamin Hayes, James Philip Crolius, William Hansen
  • Patent number: 9587866
    Abstract: A system or a method for performing capacitive sensing of humidity/liquid, primarily in conductive or non-conductive liquid/gas mixtures, having a control unit and at least first and second sensor electrodes, the capacity between the first and the second electrodes being measured. To measure humidity/liquid in a circulating gas/liquid mixture at least one of the sensor electrodes is formed as a tube which is placed in the liquid/gas mixture. Based on the capacitive measurements, a calculation of at least one dataset for control of a second system is performed. The tube can be more or less filled up with liquid or gas and the capacity can be measured as it depends on the content around or inside the tube, and if a dry gas is there will be one value of capacity and in a situation where the gas is being replaced by liquid, the capacity value will change rapidly.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: March 7, 2017
    Assignee: HP Products A/S
    Inventor: Michael Elstroem
  • Patent number: 9568241
    Abstract: A refrigerator includes a storage compartment formed in a cabinet of the refrigerator by a fixed insulation wall, the storage compartment being provided with an access opening. The refrigerator also includes a door rotatably provided to the cabinet to open and close the access opening, a drawer provided in the storage compartment, a camera fixed to a ceiling of the storage compartment to photograph both a first region for storing of food arranged in an external space of the drawer and a second region for storing of food arranged in an internal space of the drawer, and a controller configured to separate, through a capturing time of a picture containing both the first region and the second region, a first region picture and a second region picture from the picture to individually divide and store the first region picture and the second region picture.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: February 14, 2017
    Assignee: LG Electronics Inc.
    Inventors: Kwanhyung Kim, Samnyol Hong, Sungdu Kwon, Ikkyu Lee, Myoungju Lee, Jeonghwan Kim
  • Patent number: 9546812
    Abstract: A refrigerator includes a storage compartment formed in a cabinet of the refrigerator by a fixed insulation wall, the storage compartment being provided with an access opening, a door rotatably provided to the cabinet to open and close the access opening, a drawer provided in the storage compartment, and a camera. The camera is fixed to a ceiling of the storage compartment to photograph both a first region for storing of food in an external space of the drawer in the storage compartment and a second region for storing of food in an internal space of the drawer. The refrigerator also includes a controller that separates, through a capturing time of a picture containing both the first region and the second region, a first region picture and a second region picture from the picture to individually divide and store the first region picture and the second region picture.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: January 17, 2017
    Assignee: LG Electronics Inc.
    Inventors: Kwanhyung Kim, Samnyol Hong, Sungdu Kwon, Ikkyu Lee, Myoungju Lee, Jeonghwan Kim
  • Patent number: 9528756
    Abstract: A refrigerator includes a storage compartment formed in a cabinet of the refrigerator by a fixed insulation wall, the storage compartment provided with an access opening, a door rotatably provided to the cabinet to open and close the access opening, a drawer provided in the storage compartment, a camera fixed to a ceiling of the storage compartment to photograph both a first region for storing of food arranged in an external space of the drawer in the storage compartment and a second region for storing of food arranged in an internal space of the drawer, and a controller. The controller is configured to separate, through a capturing time of a picture containing both the first region and the second region, a first region picture and a second region picture from the picture to individually divide and store the first region picture and the second region picture.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: December 27, 2016
    Assignee: LG Electronics Inc.
    Inventors: Kwanhyung Kim, Samnyol Hong, Sungdu Kwon, Ikkyu Lee, Myoungju Lee, Jeonghwan Kim
  • Publication number: 20150143823
    Abstract: A refrigeration system for vaccine storage and/or transportation includes an inner chassis. One or more vertical lift carriages are positioned in the inner chassis and can house a plurality of vaccines, pharmaceuticals, and/or other perishable items. Each vertical lift carriage is contained in an isothermal chamber. One or more isothermal chambers surround a phase change reservoir (PCR), which is positioned at a central location of the inner chassis and contains frozen water or another phase change material. A thermal attenuation layer can be disposed between the PCR and each isothermal chamber to moderate energy transfer between the chamber and the PCR, thereby controlling the temperature range in each isothermal chamber. Methods for making and using the refrigeration system are also disclosed.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Inventors: Jonathan Slack, Howdy Goudey, Reshma Singh, Shashi Buluswar, Ashok Gadgil
  • Publication number: 20150135737
    Abstract: A method of monitoring and controlling temperature of a cargo in a refrigerated transportation cargo container includes measuring a temperature of a plurality of portions of the cargo located in the cargo container via a plurality of temperature sensors directed at the portions of the cargo. One or more of the measured cargo temperatures are compared to a preselected threshold. Operation of a refrigeration unit disposed at the cargo container in operable communication with the plurality of temperature sensors is changed based on a result of the comparison. A transportation cargo container refrigeration system includes a plurality of cargo temperature sensors configured to determine a temperature of at least portions of a cargo. A refrigeration unit and controller are connected to the refrigeration unit and the cargo temperature sensors to control operation of the refrigeration unit based on data received from the cargo temperature sensors.
    Type: Application
    Filed: March 12, 2013
    Publication date: May 21, 2015
    Inventors: Kenneth Cresswell, Yu H. Chen
  • Publication number: 20150135736
    Abstract: A refrigerator including a configurable space having a Hall effect integrated circuit configured to detect a magnetic field and generate an electrical signal; a function control device configured to control an environment of the configurable space according to predetermined or preset information and the electrical signal from the Hall integrated circuit; and a storage bin in the configurable space, having a magnet thereon or therein in a location corresponding to the Hall effect integrated circuit.
    Type: Application
    Filed: December 18, 2013
    Publication date: May 21, 2015
    Applicant: Dongbu Daewoo Electronics Corporation
    Inventor: Jae Sang KIM
  • Publication number: 20150128618
    Abstract: An air conditioner that stores data through communication between a plurality of air conditioner devices and a method for operating an air conditioner are provided. Data regarding power consumption quantities of a plurality of outdoor devices may be accumulatively stored in a state in which an additional data collecting device or an additional storage device is not connected to the plurality of outdoor devices, and the data regarding power consumption quantities of the outdoor devices may be transmitted to a device further connected to the plurality of outdoor devices. Consequently, it is possible to utilize data regarding power consumption of the air conditioner, set a target value based on the power consumption of the air conditioner, easily determine a power consumption pattern, and easily take measures to save energy.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 14, 2015
    Applicant: LG ELECTRONICS INC.
    Inventor: Cheonsu PARK
  • Publication number: 20150122461
    Abstract: A working medium containing 2-methoxy-1,1,1,3,3,3-hexafluoropropane (HFE-356mmz) as a main component is disclosed. This working medium is a new working medium for a boiling-type cooler, which has a light burden on the environment such as the global warming potential, etc., is slightly flammable or flame retardant, has superior thermal and chemical stabilities, and a good compatibility with heat exchangers formed of various metal materials. This medium for the boiling-type cooler can be preferably used as a working medium for a cooler of a PCU (power control unit) of a car.
    Type: Application
    Filed: February 26, 2013
    Publication date: May 7, 2015
    Inventors: Yoshio Nishiguchi, Satoru Okamoto, Fuyuhiko Sakyu
  • Publication number: 20150121908
    Abstract: In various implementations, air conditioners may include a high pressure portion and a low pressure portion. A bypass line may divert a portion of the refrigerant from the high pressure portion to the low pressure portion to reduce the pressure of at least a part of the high pressure portion. The bypass line may be opened automatically.
    Type: Application
    Filed: January 9, 2015
    Publication date: May 7, 2015
    Inventors: Yi Qu, Der-Kai Hung
  • Patent number: 9021817
    Abstract: A monolithic compressed-gas dryer including in series: an inlet chamber, a precooler/reheater chamber, an evaporator chamber, and a sump chamber. The chambers are welded together to form columns where at least one column has a filtration chamber. Further provided is a gas outlet. The system creates a first and second set of heat transfer passages where refrigerant passes through the second set in a heat exchange relationship in a direction perpendicular to incoming gas passing in the first set. The filtration chamber conducts chilled gas from the first set to a third set of heat transfer passages. The third set extends through the precooler/reheater in heat exchange relationship with the first set. Chilled gas passes in heat exchange relationship in a direction perpendicular to the incoming gas so that the incoming gas chilled in the evaporator exchanges heat with the incoming gas in the precooler/reheater.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 5, 2015
    Assignee: Parker-Hannifin Corporation
    Inventors: Allan Hoerner, John A. Carlin
  • Publication number: 20150114010
    Abstract: A cooling system for cooling a temperature-dependent power device includes an active cooling device and a controller to generate and transmit a drive signal thereto to selectively activate the device. The controller receives an input from sensors regarding the cooling device power consumption and measured operational parameters of the power equipment—including the power device output power if the device is a power producing device or the power device input power if the device is a power consuming device. The controller generates and transmits a drive signal to the cooling device based on the cooling device power consumption and the measured power device input or output power in order to cause the active cooling device to selectively cool the heat producing power device. A net system power output or total system power input can be maximized/minimized by controlling an amount of convection cooling provided by the cooling device.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Applicant: General Electric Company
    Inventors: Kevin Sean Myers, Andrew Maxwell Peter, Hendrik Pieter Jacobus de Bock, Patrick Hammel Hart
  • Patent number: 9016072
    Abstract: Method for controlling a device that includes at least a compressor installation and/or a drying device and a heat recovery system. The heat recovery system absorbs heat from the compressor installation, and the device further includes a controller and device for determining one or more system parameters. The controller controls both the compressor installation and/or the drying device and the heat recovery system on the basis of the system parameters, so that the overall efficiency of the device is optimized.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: April 28, 2015
    Assignee: Atlas Copco Airpower N.V.
    Inventors: Kristof Pascal Hubin, Kris Van Campfort
  • Patent number: 8999190
    Abstract: The invention provides a heat transfer composition comprising R-1234ze (E), R-32 and 1,1,1,2-tetrafluoroethane (R-134a).
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: April 7, 2015
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventor: Robert E Low
  • Publication number: 20150089963
    Abstract: In a central air-conditioning system, regional flow balancing valves for controlling flow of water return branch pipes are arranged on the water return branch pipes, and energy balancing valves are arranged on water return pipes of tail-end fan coils respectively. A control method includes: detecting flow in the water return branch pipes, and adjusting the flow in the return branch pipes to be smaller than or equal to a branch pipe set flow value; and detecting the temperature of return water in the water return pipes of the tail-end fan coils, controlling the temperature of the return water in the water return pipes of the tail-end fan coils to be greater than or equal to a tail-end return water set temperature value, detecting the room temperature and adjusting the opening degree of the energy balancing valves in temperature controllers.
    Type: Application
    Filed: January 17, 2013
    Publication date: April 2, 2015
    Inventor: Zhongxi Tan
  • Patent number: 8991198
    Abstract: Automated control of a cooling system cooling at least one electronic component is provided. The control includes monitoring over a period of time variation of an operational variable of the cooling system or of the at least one electronic component, and based, at least in part, on variation of the operational variable over the period of time, automatically determining whether to adjust control of the cooling system to limit variation of the operational variable. In one implementation, depending on the variation of the operational variable, and whether control of the cooling system has been previously adjusted, the method may further include automatically determining a probability of fail or an expected residual life of the cooling system, and responsive to the predicted probability of fail exceeding a first acceptable threshold or the expected residual life being below a second acceptable threshold, automatically scheduling for a cooling system repair or replacement.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: March 31, 2015
    Assignee: International Business Machines Corporation
    Inventors: Daniel J. Kearney, Rejean P. Levesque, K. Paul Muller, Andrew H. Vogel, Emmanuel Yashchin
  • Publication number: 20150082814
    Abstract: Disclosed herein is a method for controlling an electromotive compressor in a heat pump system for a vehicle. In accordance with an embodiment of the present invention, an unexpected cutoff of a compressor attributable to overload and the generation of noise and vibration attributable to frequent restarts can be prevented by controlling the number of rotations of the compressor within a specific range based on the discharge pressure of the compressor.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 26, 2015
    Inventors: Hak Kyu Kim, Sung Ho Kang, Sang Ki Lee, Young Ho Choi, Jae Min Lee, Jung Jae Lee
  • Publication number: 20150075190
    Abstract: An air conditioning companion stabilizer system for improving the operating cooling efficiency of refrigeration cycle components in air conditioning systems integrates the refrigeration cycle components with two independent, closed loops whose operation is complementary of one another. A temperature stabilizing loop functions in ambient conditions that lower cooling efficiency and is operative to absorb heat from the refrigerant exiting the condenser, thereby lowering the temperature of the refrigerant before it arrives at the expansion valve. A secondary loop, or charging loop operating in ambient conditions that enable optimal cooling efficiency facilitates the operation of the temperature stabilizing loop by priming a rechargeable heat absorbing component.
    Type: Application
    Filed: August 21, 2014
    Publication date: March 19, 2015
    Inventor: Allen John Mahncke
  • Patent number: 8974573
    Abstract: A monitoring system for monitoring operation of a refrigerant-cycle system is disclosed. An electrical sensor measures an electrical quantity indicative of power consumption of a component of the refrigerant-cycle system. A processing system selectively identifies a condition indicative of an airflow restriction through the refrigerant-cycle system based on the power consumption of the component.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 10, 2015
    Assignee: Emerson Climate Technologies, Inc.
    Inventor: Lawrence Kates
  • Publication number: 20150052911
    Abstract: A method for controlling transitions between activating and deactivating a vehicle air conditioner compressor is disclosed. In one example, displacement of the air conditioner compressor is adjusted before the air conditioner is coupled to an energy conversion device. The method may provide smooth transitions between different air conditioner compressor control modes.
    Type: Application
    Filed: November 4, 2014
    Publication date: February 26, 2015
    Inventors: John Eric Rollinger, Jeffrey Allen Doering, Hugh Hamilton, Brent Jacobsen, Steve Pryor Perry
  • Patent number: 8959934
    Abstract: The present invention relates to a supercooling system and a method for displaying a supercooled state which can accurately display a supercooled state of a stored object in spite of the external influence.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: February 24, 2015
    Assignee: LG Electronics Inc.
    Inventor: Won-Young Chung