With Refrigerant Treater Patents (Class 62/474)
  • Patent number: 11839064
    Abstract: Embodiments are disclosed of a rack cooling apparatus, more specially, a rack fluid control and management unit with a first pair of fluid lines including a first supply line and a first return line and a second pair of fluid lines including a second supply line and a second return line. The first supply line and the first return line are adapted to be coupled to a first rack manifold and the second supply line and the second return line are adapted to be coupled to a second rack manifold in the same rack as the first rack manifold. First and second bi-directional fluid lines fluidly couple the first supply line to the second supply line.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: December 5, 2023
    Assignee: BAIDU USA LLC
    Inventor: Tianyi Gao
  • Patent number: 11825637
    Abstract: A rack with two-phase loop recirculation includes a supply manifold, a return manifold, and a separator. For example, a supply manifold is configured to receive two-phase cooling fluid from a cooling fluid source to distribute the two-phase cooling fluid to one or more server chassis. The two-phase cooling fluid is to extract heat from the one or more electronic devices and to transform into two-phase mixing fluid having at least a portion of the two-phase fluid transformed into vapor. A return manifold is configured to receive the two-phase mixing fluid from one or more loops associated with one or more electronic devices of the server chassis. A separator disposed on the return manifold is configured to separate the vapor of the two-phase mixing fluid and to divert first remaining two-phase cooling fluid of the two-phase mixing fluid directly back to the supply manifold through a return loop.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: November 21, 2023
    Assignee: BAIDU USA LLC
    Inventor: Tianyi Gao
  • Patent number: 11692114
    Abstract: A refrigerant composition comprising carbon dioxide (CO2; R-744) and from 1 to 32 weight % difluoromethane (R-32) based on the total weight of the composition is described. Also described is the use of the refrigerant composition for providing heating and cooling and a refrigeration, air-conditioning or heat pump system comprising the refrigerant composition.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: July 4, 2023
    Assignee: MEXICHEM FLUOR S.A. DE C.V.
    Inventor: Robert E. Low
  • Patent number: 11680737
    Abstract: A plug-in device for a cylinder of a condenser, this plug-in device comprising: a plug designed to plug, preferably removably, an opening of the cylinder, a functional component designed to interact with a refrigerant fluid in the cylinder, this functional component being designed to be mounted, removably or non-removably, on the plug with the possibility of rotating with respect to this plug.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: June 20, 2023
    Assignee: Valeo Systemes Thermiques
    Inventors: Gaël Durbecq, Véronique Westermann
  • Patent number: 11536500
    Abstract: A heat exchanging module (1) comprising a heat exchanger (2) and a bottle (6), the bottle (6) being attached to the heat exchanger (2) at one first longitudinal end (63) of the bottle (6), said heat exchanging module (1) comprising at least one attachment mean (10) located at a second longitudinal end (64) of the bottle (6), said attachment mean (10) restricting at least one axial movement of the bottle (6) along a longitudinal dimension (5) of said bottle (6).
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: December 27, 2022
    Assignee: Valeo Autosystemy Sp. z o.o.
    Inventors: Pawel Sus, Mateusz Kaczmarczyk, Karol Pokrywinski
  • Patent number: 11408406
    Abstract: A GM cryocooler includes a first cold head including a first displacer that is reciprocable in an axial direction, a first drive piston that drives the first displacer in the axial direction, and a first drive chamber that houses the first drive piston; a second cold head including a second displacer that is reciprocable in the axial direction, and a second cylinder that houses the second displacer; a first intake valve that is connected to both the first drive chamber and the second cylinder so as to supply working gas in parallel to the first drive chamber and the second cylinder; and a first exhaust valve that is connected to both the first drive chamber and the second cylinder so as to collect the working gas in parallel from the first drive chamber and the second cylinder.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: August 9, 2022
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Mingyao Xu, Qian Bao, Takaaki Morie
  • Patent number: 11203006
    Abstract: A method including adding to or positioning in a vehicle air conditioning system a solid form adsorbent. The solid form adsorbent includes a plurality of discrete adsorbent particles spatially bound in place by point bonding with a binder. At least about 25% of the external surface area of a majority of the particles is not sealed off by the binder and is available for adsorption.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: December 21, 2021
    Assignee: FLOW DRY TECHNOLOGY, INC.
    Inventors: David Victor Flaugher, Rodney Lee Dobson, David S. Kress
  • Patent number: 11193501
    Abstract: A blower device has a fixing position which is easily changed and the increase in cost is greatly suppressed. A blower device in which a flange having a fixing attaching foot is attached to rails formed on an outer circumferential surface of a casing, and a retaining block is attached to the flange to secure the flange to the casing, the retaining block includes a first block, a second block, and a connecting portion having smaller width and connecting the first block and the second block, the first block and the second block each include a retaining leg portion and a latching leg portion, and a projecting portion is formed on a side surface of the retaining leg portion and ribs are formed at both sides of the projecting portion.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: December 7, 2021
    Assignees: MINEBEA MITSUMI INC., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhiko Fujita, Shuhei Kimpara, Seiya Yoshitome, Hideaki Goda, Makoto Hidaka
  • Patent number: 11193500
    Abstract: It is possible to provide a blower device in which the fixing position of the blower device is easily changed and the increase in cost is greatly suppressed. A blower device 100 in which a flange 201 having a fixing attaching foot 200 is attached to rails 108 and 109 formed on an outer circumferential surface of a casing 103, and a retaining block 205 is attached to the flange 201 to secure the flange 201 to the casing 103, the retaining block 205 includes a first block, a second block, and a connecting portion having smaller width and connecting the first block and the second block, and the first block and the second block each include a retaining leg portion and a latching leg portion, and a projecting portion is formed on a side surface of the retaining leg portion.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: December 7, 2021
    Assignees: MINEBEA MITSUMI INC., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shuhei Kimpara, Seiya Yoshitome, Hideaki Goda, Makoto Hidaka
  • Patent number: 11073315
    Abstract: Refrigeration systems with a purge for removing non-condensables from the refrigerant and an acid filter for remove acid from the refrigerant are provided. The acid filter can be operatively connected to the purge. Optionally, the purge can include a separating device for separating non-condensable gases from condensable refrigerant gases and an acid filter is provided to remove acid from the condensable refrigerant gases.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: July 27, 2021
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Daoud Ali Jandal, Julie Ann Majurin, Stephen Anthony Kujak, Raymond Scott Schafer, Paul Edmond Cieslinski
  • Patent number: 10890371
    Abstract: A freezing refrigerator heats an entrance side pipe of evaporator, which is difficult to heat in the related art, with the condensation latent heat of refrigerant that builds up in a lower portion of evaporator in a liquid state while being vaporized with the heat of defrosting heater so as to warm the outlet pipe by a second thermal coupling part thermally coupling an inlet pipe and an outlet pipe of evaporator, whereby temperature variation of the entire evaporator in a defrosting operation can be suppressed, and the power consumption of defrosting heater can be reduced.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: January 12, 2021
    Assignee: PANASONIC CORPORATION
    Inventors: Fuminori Takami, Terutsugu Segawa
  • Patent number: 10845106
    Abstract: An accumulator and oil separator device includes a housing having a cavity, an oil separator unit disposed in the cavity and designed to separate oil from a refrigerant and oil mix received from a compressor and to output the oil into the cavity. The accumulator and oil separator device further includes an accumulator inlet tube to carry a received refrigerant into the cavity. The accumulator and oil separator device also includes an accumulator outlet tube to output the received refrigerant and the oil from the cavity.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 24, 2020
    Assignee: Rheem Manufacturing Company
    Inventor: Paul D. McKim
  • Patent number: 10753686
    Abstract: A condenser for a vehicle includes an integrally formed receiver-drier and a plurality of stacked plates. The condenser may be used in an air conditioning having an expansion valve expanding liquid refrigerant, an evaporator evaporating the refrigerant expanded at the expansion valve through heat-exchange with air, and a compressor receiving from the evaporator and compressing gaseous refrigerant, may be provided between the compressor and the expansion valve, and may circulate coolant supplied from a radiator so as to condense the refrigerant supplied from the compressor through heat-exchange with the coolant and the refrigerant.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: August 25, 2020
    Assignees: Hyundai Motor Company, Doowon Climate Control Co., Ltd., Kia Motors Corporation
    Inventors: Jae Yeon Kim, Wan Je Cho, Man Hee Park, Seok Jin Park
  • Patent number: 10697673
    Abstract: A liquid receiver of a condenser has a liquid receiver main body and a plug removably fitted thereinto. The liquid receiver main body has a refrigerant inflow hole into which refrigerant flows from a condensation section and a refrigerant outflow hole from which refrigerant flows into a supercooling section. The liquid receiver has a first space formed above the upper end of the plug and communicating with the refrigerant inflow hole and a second space formed below the upper end of the plug and communicating with the refrigerant outflow hole. The plug has a flow passage which is open to the first space and the second space at opposite ends. The first-space-side opening of the flow passage is located below the refrigerant inflow hole. The flow passage has a throttle portion whose cross-sectional area is smaller than a hole area of the refrigerant inflow hole.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: June 30, 2020
    Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATION
    Inventors: Makoto Numasawa, Naohisa Higashiyama, Hideo Ohashi
  • Patent number: 10443912
    Abstract: The present invention provides a heat pump device and an organic Rankine cycle device that are capable of maintaining a stable thermal cycle even when an HFO is used as the refrigerant in an environment in which the operating temperature reaches a high temperature. The refrigerant circulation device is filled with a refrigerant comprising a hydrofluoroolefin or hydrochlorofluoroolefin having a carbon-carbon double bond within the molecular structure, and has a region in the refrigerant circulation circuit where the operating temperature of the refrigerant reaches 175° C. or higher, wherein an acid suppression unit which suppresses any increase in the acid concentration in the refrigerant is provided in the region where the operating temperature of the refrigerant can reach 175° C.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: October 15, 2019
    Assignees: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD., CENTRAL GLASS CO., LTD.
    Inventors: Kenji Ueda, Naoki Kobayashi, Yoshinori Akamatsu, Fuyuhiko Sakyu, Yoshio Nishiguchi
  • Patent number: 10330356
    Abstract: A liquid receiver is composed of a tubular base member having open upper and lower ends, a tubular tank member having a closed upper end and an open lower end and joined to the base member, and a plug fitted into the base member. A female screw is provided on the inner circumferential surface of the base member, and refrigerant inflow and outflow holes are formed in a portion of the base member above the female screw such that the former is located above the latter. A male screw to be screwed into the female screw is provided on the outer circumferential surface of the plug to be located below the refrigerant outflow hole. Sealing is established between a portion of the inner circumferential surface of the base member located below the female screw and a portion of the outer circumferential surface of the plug located below the male screw.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: June 25, 2019
    Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATION
    Inventor: Makoto Numasawa
  • Patent number: 10267549
    Abstract: An air conditioner which includes a compressor, an outdoor heat exchanger, an outdoor expansion valve, and an indoor heat exchanger that have been successively connected by a pipeline, and in which a hydrofluoroolefin-containing refrigerant is to be used, the air conditioner being characterized in that an oxygen adsorption device in which a synthetic zeolite is used as an adsorbent has been disposed somewhere in the pipeline, the synthetic zeolite having a pore diameter which is larger than the size of the oxygen molecule but smaller than the size of the hydrofluoroolefin molecule.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: April 23, 2019
    Assignee: Hitachi-Johnson Controls Air Conditioning, Inc.
    Inventors: Hiroaki Tsuboe, Atsuhiko Yokozeki, Masaki Uno, Hideyuki Ueda
  • Patent number: 10254022
    Abstract: A condenser for an air conditioning circuit is disclosed. The condenser has a housing which is connected to a refrigerating fluid reserve by a flange having cylinder shaped tubes, the housing receiving a first heat exchange portion between the refrigerating fluid and a cooling liquid, the first portion being configured to convey the refrigerating fluid to the refrigerating fluid reserve, and a second heat exchange portion which produces a heat exchange complement between the refrigerating fluid and the cooling liquid at the outlet of the refrigerating fluid reserve.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: April 9, 2019
    Assignee: Valeo Systemes Thermiques
    Inventors: Isabelle Citti, Sébastien Jacope, Gaël Durbecq
  • Patent number: 10119736
    Abstract: A condenser includes a condensation section, a super-cooling section located above the condensation section, and a liquid receiver. The liquid receiver has a first space communicating with the condensation section through a refrigerant inlet and a second space located above the first space and communicating with the super-cooling section through a refrigerant outlet. A suction pipe which is open at upper and lower ends thereof and which establishes communication between the first space and the second space is disposed in the first space. A tubular flow control member whose upper end is open is disposed around the suction pipe such that the refrigerant having flowed into the first space through the refrigerant inlet hits against the flow control member and changes its flow direction. Since the refrigerant inlet is located within the vertical range of the flow control member, the refrigerant hits against the flow control member.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: November 6, 2018
    Assignee: KEIHEN THERMAL TECHNOLOGY CORPORATION
    Inventor: Teruyuki Nagafuji
  • Patent number: 10094602
    Abstract: A condenser includes a condensation section, a super-cooling section, and a liquid receiving section. Refrigerant from heat exchange tubes of a first heat exchange path of the condensation section flows into those of a second heat exchange path through the liquid receiving section. The liquid receiving section includes a first space for receiving refrigerant from the heat exchange tubes of the first heat exchange path, a second space which is located above the first space and in which refrigerant from the first space is separated into gaseous and liquid phases, and a third space which is located below the first space, which receives refrigerant from the second space, and from which refrigerant flows to the heat exchange tubes of the second heat exchange path. A first partition member between the first space and the second space has a throttle for refrigerant flowing from the first space into the second space.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: October 9, 2018
    Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATION
    Inventors: Tatsuya Hanafusa, Makoto Numasawa, Koutarou Hagiwara
  • Patent number: 9970691
    Abstract: An equipment including a heat pump for heating with a large temperature differential an external fluid, said heat pump including: first and second heat exchangers; a coolant; a coolant circuit including a compression unit connected to an outlet of the first heat exchanger and to an inlet of the second heat exchanger and an expansion unit connected to an outlet of the second heat exchanger and to an inlet of the first heat exchanger, wherein the coolant is one of the coolants selected from among a hydrofluorocarbon coolant and a hydrofluoroolefin coolant, and wherein the second heat exchanger and the coolant circuit are suitable for circulating the coolant in a transcritical cycle.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: May 15, 2018
    Assignee: Electricite de France
    Inventors: Jean-Louis Peureux, Ali Bourig, Assaad Zoughaib, Karim Besbes
  • Patent number: 9829218
    Abstract: A cryogenic refrigerator includes a cylinder, a displacer configured to be moved back and forth in the cylinder by a drive unit, an inlet valve configured to be opened in supplying a refrigerant gas into the cylinder, an exhaust valve configured to be opened in exhausting the refrigerant gas from the cylinder, and an expansion space formed in the cylinder and configured to generate a cooling by expanding the refrigerant gas caused by back and forth movement of the displacer. A moving speed of the displacer in the vicinity of a bottom dead center is set to be faster than the moving speed of the displacer in the vicinity of a top dead center.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: November 28, 2017
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventor: Mingyao Xu
  • Patent number: 9709306
    Abstract: A structure of a suction pipe provided with a capillary tube having a spiral shape being inserted into an inside thereof, capable of easily fixing the capillary tube to the suction pipe, and a refrigerator having the same, the refrigerator including a suction pipe, and a capillary tube having a spiral portion being inserted into the inside the suction pipe, the suction pipe including a first wall making contact with the spiral portion, a second wall making contact with the spiral portion while facing the first wall, and a connecting wall configured to connect the first wall to the second wall while being spaced apart from the spiral portion.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: July 18, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Seop Hyun, Sung Ju Bae, Young Jae Song, Sinn Bong Yoon, Jong Chul Choi
  • Patent number: 9636622
    Abstract: An accumulator has a tank and a desiccant. The tank separates refrigerant flowing to the tank into vapor-phase refrigerant and liquid-phase refrigerant, therein stores the liquid-phase refrigerant, and emits the vapor-phase refrigerant toward a suction side of a compressor. The desiccant is disposed in the tank and removing a water content from the refrigerant. Liquid-phase refrigerant included in the refrigerant flowing to the tank drops downward from a location that is located above the desiccant, and is stored in a lower portion in the tank. Vapor-phase refrigerant included in the refrigerant flowing to the tank is drawn through a suction port that is located above the desiccant to flow out of the tank. At least a part of the desiccant is exposed to vapor-phase refrigerant under a normal condition, and the desiccant is located at a location that is away from a dropping route of liquid-phase refrigerant in the tank.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: May 2, 2017
    Assignee: DENSO CORPORATION
    Inventors: Kurato Yamasaki, Teruyuki Hotta, Kazuhisa Makida, Hajime Itoh
  • Patent number: 9612046
    Abstract: A sub-cooled condenser for an air conditioning system, having a condenser portion, a sub-cooler portion located below that of the condenser portion, an adjacent receiver tank having a first fluid port in hydraulic connection with the condenser portion and a second fluid port in hydraulic connection with the sub-cooler portion, and a refrigerant diverter assembly disposed in the receiver tank. The refrigerant diverter assembly is configured to divert a refrigerant from the first fluid port to a location beneath the surface level of a refrigerant retained within the receiver tank without impacting the surface level. The refrigerant diverter assembly includes a refrigerant port in hydraulic connection with the first fluid port, axial and annular refrigerant passageways, and a refrigerant conduit having an inlet end in hydraulic communication with the annular passageway and a second fluid port beneath the surface level (S) of the liquid phase refrigerant.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: April 4, 2017
    Assignee: MAHLE International GmbH
    Inventors: Mariusz Marciniak, Piotr Swisulski, Scott E. Kent
  • Patent number: 9546805
    Abstract: In a coolant condenser assembly for a motor vehicle air conditioning system, comprising cooling pipes for conducting a coolant through, two collecting pipes for fluidically connecting the cooling pipes, a collecting container with an upper cover wall and a lower bottom wall and a side wall as well as with an inlet opening for conducting the coolant into the collecting container and an outlet opening for conducting the coolant out of the collecting container, with the result that through the inlet and outlet openings the collecting container is fluidically connected to the collecting pipe and/or the cooling pipes, the collecting container comprises an outlet chamber and a riser pipe, and the outlet opening opens into the outlet chamber, and the outlet chamber is connected to the riser pipe and a storage chamber for the coolant is formed within the collecting container and outside the outlet chamber and outside the riser pipe, the collecting container preferably has an inlet chamber and a downpipe, and the inle
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: January 17, 2017
    Assignee: MAHLE INTERNATIONAL GMBH
    Inventors: Hofmann Herbert, Uwe Förster, Walter Christoph, Guillaume David, Kaspar Martin
  • Patent number: 9377228
    Abstract: The present invention provides a receiver drier for a vehicle air conditioner including: a tubular body into which a desiccant bag is inserted, and on the outer side of which a refrigerant inlet, through which a refrigerant is introduced from a condenser, and a refrigerant outlet, through which a liquid refrigerant flows out into a sub-cooling zone, are formed, the body having an opening at the lower portion thereof; a filter installed in the body; and a cap having a cap body inserted in and coupled to the opening of the body, wherein a lower part of the filter is inserted into the upper peripheral surface of the cap body, and a guide member protrudes from the top surface of the cap body toward the inner side of the filter and guides the refrigerant supplied through the refrigerant inlet to smoothly flow out through the refrigerant outlet.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: June 28, 2016
    Assignee: DOOWON CLIMATE CONTROL CO., LTD
    Inventors: Ill Jae Lee, Myung Soo Jang
  • Patent number: 9346338
    Abstract: A secondary loop air conditioning system for a vehicle that includes a condenser and an integrated assembly is disclosed. The condenser has a first condenser header spaced from a second condenser header, a condenser core extending between the first and second condenser headers, and a refrigerant inlet operatively engaging the first condenser header. The integrated assembly includes a chiller mounted to the first condenser header and having a liquid inlet and a liquid outlet configured to be in fluid communication with a secondary loop of the air conditioning system, and an expansion device in fluid communication with the condenser and mounted adjacent to the chiller for directing refrigerant into the chiller, and a refrigerant outlet. Also, a receiver/dryer area may be located in one of the condenser and the integrated assembly.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: May 24, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gregory A. Major, William R. Hill
  • Publication number: 20150143836
    Abstract: A device is provided for a refrigeration system that separates liquid and vapor phases of the refrigerant while also drying the liquid phase to remove water. The phase separator and drier are provided integrally as part of the same device. The device can be used with e.g., dual evaporator refrigeration systems and both single and multi-component refrigerants. Improved efficiencies in space and plumbing so as to reduce costs can be achieved.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 28, 2015
    Applicant: General Electric Company
    Inventor: Brent Alden Junge
  • Publication number: 20150121927
    Abstract: A refrigerator is provided that may include at least one compressor that compresses a refrigerant, a condenser that condenses the refrigerant compressed in the at least one compressor, a refrigerant tube that guides the refrigerant condensed in the condenser, a plurality of evaporation passages, in which expansion devices may be respectively disposed, the plurality of evaporation passages branching from the refrigerant tube, a flow adjuster disposed in the refrigerant tube to supply the refrigerant into at least one evaporation passage of the plurality of evaporation passages, a plurality of evaporators, respectively, connected to the plurality of evaporation passages to evaporate the refrigerant decompressed in the plurality of expansion devices, and a liquid refrigerant supply device disposed at an outlet-side of the condenser to separate a liquid refrigerant of the refrigerant heat-exchanged in the condenser, thereby supplying the liquid refrigerant into the flow adjuster.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 7, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Sangbong LEE, Jangseok LEE, Hyoungkeun LIM, Myungjin CHUNG, Minkyu OH, Namsoo CHO
  • Publication number: 20150068225
    Abstract: A branch controller operates with a system for temperature and humidity control. The branch controller includes a fluid control system for controlling a flow of the liquid desiccant in an arrangement of channels forming a first path for exchanging the liquid desiccant between a liquid desiccant conditioning unit and at least a first space conditioning unit and a second path for directing the liquid desiccant received from the first space conditioning unit to a second space conditioning unit. The branch controller includes a processor for comparing operational conditions of the first space conditioning unit and the second space conditioning unit. The processor selects between the first path and the second path based on the comparison and commands the fluid control system to control the flow of the liquid desiccant according to the selected path.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 12, 2015
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Christopher Laughman, Daniel J. Burns, Scott A. Bortoff, Richard C. Waters
  • Patent number: 8959948
    Abstract: A receiver dryer for a motor vehicle air conditioning system includes an elongate housing, the housing having opposite ends and an external wall that extends between the ends, an inlet positioned in a first section of the housing for receiving condensed refrigerant from the condenser unit, an outlet positioned in a second section of the housing for providing dried condensed refrigerant to the condenser unit with a partition dividing the first section from the second section such that the second section is above the first section, a first chamber in the first section containing a desiccant for drying the refrigerant received from the inlet, a second chamber in the second section containing a filter for filtering the dried condensed refrigerant provided to the outlet, and a conduit.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: February 24, 2015
    Assignee: Halla Visteon Climate Control Corporation
    Inventors: Richard Armsden, Dominic Bennett, Leo Somhorst
  • Patent number: 8950213
    Abstract: A receiver includes a cylindrical main tank; a cylindrical internal thread component having an internal thread; a cap having a male thread threaded with the internal thread; a sealing attached to the cap; and a filter portion arranged in the cap. The internal thread component is coaxially arranged to an inner circumference face of the tank. The filter portion includes an internal passage extending inside of the cap, and a net that collects a foreign matter contained in refrigerant flowing through the internal passage.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: February 10, 2015
    Assignee: Denso Corporation
    Inventors: Takuya Mitsuhashi, Ken Muto, Akira Itoh, Kazuhisa Naito, Wei Chen, Hiroyasu Shimanuki
  • Publication number: 20150033788
    Abstract: A receiver dryer includes a first body and a second body, one end of the second body away from the first body defining first and second connecting ports. The receiver dryer includes a filter cartridge including a first mating portion, a second mating portion, and a filter part at a middle portion; the first mating portion fits with an inner wall of the second body, one space allowing refrigerant to flow is formed between the filter part and the inner wall of the second body, the second mating portion is connected to the second connecting port, the space between the filter part and the inner wall of the second body communicates with the first connecting port, an inside of the filter part communicates with the second connecting port via the second mating portion, and refrigerant is filtered at least once when flowing between the first and second connecting ports.
    Type: Application
    Filed: February 4, 2013
    Publication date: February 5, 2015
    Inventors: Lixin Wang, Zhengwei Wang
  • Patent number: 8931303
    Abstract: A refrigerating air-conditioning apparatus, at least provided with no possibility that a foreign material returns to a compressor from an accumulator at a time of the pipeline-cleaning operation firstly, and provided with a possibility to perform a collecting operation for the foreign material in a short time secondary, is provided. The heat-source side unit includes an accumulator provided with a function to separate and collect the foreign material in an existing pipeline, a collecting container for collecting the foreign material separated by the accumulator, and an oil return pipeline for returning refrigerating machine oil to the compressor via a flow amount adjusting device, installed at a lower portion of the accumulator, and at a time of ordinary cooling or heating operation, the refrigerating machine oil is caused to flow into the oil return pipeline, and at a time of pipeline cleaning and foreign material-collecting operations, the flow amount adjusting device is fully closed.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: January 13, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaki Toyoshima, Susumu Yoshimura, Shinichi Wakamoto, Osamu Morimoto
  • Patent number: 8899073
    Abstract: A refrigerant storage device that arranges two end plates to form a cavity and includes a turbulator plate within the cavity. The turbulator plate is arranged within the cavity to reinforce the cavity by providing a plurality of reinforcement portions between the end plates. The cavity is sized and the turbulator plate is configured so a liquid portion of refrigerant flowing through the cavity collects onto the turbulator plate. The device has a rectangular shape that simplifies vehicle packaging and allows the device to be readily integrated into a plate-type refrigerant-to-liquid coolant heat exchanger. The device is formed by a stacking arrangement of parts that provides for a readily scalable design.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 2, 2014
    Assignee: Delphi Technologies, Inc.
    Inventors: Gary Scott Vreeland, Frederick Vincent Oddi
  • Patent number: 8863538
    Abstract: A method of treating a contaminated refrigeration fluid including the steps of transferring, separating, returning, moving and removing. The transferring step includes the transferring of a portion of the contaminated refrigeration fluid from a refrigeration system to a first tank. The separating step includes the separating of refrigerant from the portion of the contaminated refrigeration fluid resulting in the refrigerant and a refrigerant depleted portion. The returning step includes the returning of the refrigerant to the refrigeration system. The moving step includes the moving of the refrigerant depleted portion to a second tank. The removing step includes the removing of oil from the refrigerant depleted portion.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: October 21, 2014
    Assignee: Wagner-Meinert LLC
    Inventors: Lawrence F. Hildebrand, Wayne Douglas Zollinger
  • Patent number: 8783059
    Abstract: A refrigerating air-conditioning apparatus, at least provided with no possibility that a foreign material returns to a compressor from an accumulator at a time of the pipeline-cleaning operation firstly, and provided with a possibility to perform a collecting operation for the foreign material in a short time secondary, is provided. The heat-source side unit includes an accumulator provided with a function to separate and collect the foreign material in an existing pipeline, a collecting container for collecting the foreign material separated by the accumulator, and an oil return pipeline for returning refrigerating machine oil to the compressor via a flow amount adjusting device, installed at a lower portion of the accumulator, and at a time of ordinary cooling or heating operation, the refrigerating machine oil is caused to flow into the oil return pipeline, and at a time of pipeline cleaning and foreign material-collecting operations, the flow amount adjusting device is fully closed.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: July 22, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaki Toyoshima, Susumu Yoshimura, Shinichi Wakamoto, Osamu Morimoto
  • Patent number: 8783052
    Abstract: Apparatus and method are provided for cooling an electronic component(s). The apparatus includes a coolant-cooled structure in thermal communication with the component(s) to be cooled, and a coolant-to-refrigerant heat exchanger in fluid communication with the coolant-cooled structure via a coolant loop. A thermal buffer unit is coupled in fluid communication with the coolant loop, and a refrigerant loop is coupled in fluid communication with the heat exchanger. The heat exchanger dissipates heat from coolant in the coolant loop to refrigerant in the refrigerant loop. A compressor is coupled in fluid communication with the refrigerant loop and is maintained ON responsive to heat load of the component(s) exceeding a heat load threshold, and is cycled ON and OFF responsive to heat load of the component(s) being below the threshold. The thermal storage unit dampens swings in coolant temperature within the coolant loop during cycling ON and OFF of the compressor.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: July 22, 2014
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Robert E. Simons
  • Publication number: 20140144174
    Abstract: A bidirectional filter and a heat pump system. The bidirectional filter comprises a housing and at least two control value components. The two control value components divide the inner chamber of the housing into a filter chamber and two transitional chambers. The control value component comprises a frame body fixed on an inner wall of the housing, and an outlet blocking piece fitting an outlet of the frame body. The outlet blocking piece is on an outer side of the frame body. The bidirectional filter further comprises a protective member located in the filter chamber and fixed relative to the housing. The protective member is provided with a protective surface opposite to an outer side surface of the outlet blocking piece. When the pressure of a refrigerant in the pipeline is too high, the protective surface of the protective member can limit movement of the outlet blocking piece.
    Type: Application
    Filed: December 16, 2011
    Publication date: May 29, 2014
    Applicant: Zhejiang Sanhua Co., Ltd.
    Inventors: Linping Wu, Feng Chen, Weiwei Jiang
  • Patent number: 8701434
    Abstract: A cooling device includes a cooling unit (10) penetrated by a fluid to be cooled, in particular hydraulic oil, and a filter unit (12) for filtering the fluid. The filter unit (12) extends along a longitudinal side of the cooling unit (10). A fluid collecting space (16) is arranged between the filter unit (12) and the cooling unit (10). The fluid collecting space (16) has a uniform flow cross-section and is at least partially closed against the filter unit (12) by a concavely curved limitating wall (36). The optimized fluid guidance obtained results in a uniformization of speed, while at the same time avoiding cavities and turbulences to ensure a trouble-free and energetically favorable operation of the cooling device.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: April 22, 2014
    Assignee: Hydac Fluidtechnik GmbH
    Inventor: Giuseppe Zeolla
  • Patent number: 8689571
    Abstract: Provided is a dryer for minimizing moisture entrained within a refrigerant used to provide a cooling effect to a temperature-controlled environment, and a refrigeration appliance including such a dryer. The dryer includes a housing defining a drying chamber and a desiccant disposed within the drying chamber for removing at least a portion of the moisture from the refrigerant. A first outlet is formed in the housing adjacent a lower region of the drying chamber when the drying chamber is viewed in an operational orientation. A second outlet is also formed in the housing at an elevation vertically above the first outlet when the dryer is viewed in the operational orientation for discharging at least a portion of the refrigerant introduced into the drying chamber to be delivered to a second heat exchanger with a relatively-low internal pressure. The elevation of the second outlet relative to the first outlet promotes the discharge of the refrigerant through the first outlet instead of through the second outlet.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: April 8, 2014
    Assignee: Electrolux Home Products, Inc.
    Inventors: Juan Antonio Contreras Lafaire, David L. Hall, Marcelo Candeo, Dennis Carl Hansen
  • Publication number: 20140041411
    Abstract: The invention relates to an insert for a collector of a condenser, having a main body with a sealing lip for abutment against the inner wall of the collector axially between the two flow transfer openings of the collector, having a filter element for the fluid to flow through, having a fluid diverting element, and having a fluid duct such that the fluid diverting element diverts the radially inflowing fluid stream into an axially flowing fluid stream, and the fluid duct conducts the diverted fluid flow to the filter.
    Type: Application
    Filed: August 9, 2013
    Publication date: February 13, 2014
    Applicant: Behr GmbH & Co. KG
    Inventors: Uwe FÖRSTER, David GUILLAUME, Martin KASPAR, Matthias JUNG, Christoph WALTER, Ottokar KUNBERGER, Andreas KEMLE
  • Publication number: 20130333402
    Abstract: Climate control systems and methods of operating climate control systems for motor vehicles are provided herein. In one example, the method comprises the steps of expanding a condensed refrigerant stream with an expansion valve to form a partially expanded refrigerant stream. The partially expanded refrigerant stream comprises a refrigerant liquid phase and a refrigerant vapor phase. The partially expanded refrigerant stream is separated with a liquid-vapor separator into a refrigerant liquid stream and a refrigerant vapor stream. Heat is exchanged between air passing across or through an evaporator and the refrigerant liquid stream passing internally through and expanding in the evaporator to form a superheated refrigerant gas stream.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 19, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: BRYAN M. STYLES, HARRY E. EUSTICE
  • Publication number: 20130319025
    Abstract: A refrigerant recovery unit is provided that is capable of communicating with a vehicle diagnostic tool. The diagnostic tool can retrieve vehicle information, such as vehicle identifying information or vehicle diagnostic information. The refrigerant recovery unit can diagnose the vehicle and provide fixes to the user using the database stored therein or from a remote location. The refrigerant recovery unit includes various hardware and software to communicate with electronic control units in the vehicle.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 5, 2013
    Applicant: Service Solutions U.S. LLC
    Inventors: Tim Wagaman, Mark McMasters
  • Patent number: 8544294
    Abstract: A subassembly for an adsorption chiller includes an adsorption component that includes a plurality of plates arranged in a stack. Refrigerant passages are defined between refrigerant sides of adjacent pairs of the plates in the stack. An adsorbent material is disposed within the refrigerant passages.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: October 1, 2013
    Assignee: Palo Alto Research Center Incorporated
    Inventor: Sean Garner
  • Publication number: 20130167581
    Abstract: A dehumidifier for a compressor, including: a plurality of dehumidifying members that absorb moisture; and a flow passage controlling valve module that enables a low-temperature vapor refrigerant to alternately flow into the plurality of dehumidifying members and enables the low-temperature refrigerant to flow into a compressor in a state where moisture contained in the low-temperature refrigerant is absorbed and is removed, enables a high-temperature vapor refrigerant ejected from the compressor to alternately flow into the dehumidifying members and regenerates the dehumidifying members. Thus, since a liquid-state absorbent contained in a refrigerant flowing into the compressor is removed by the dehumidifier, damage caused by liquid compression and corrosion of the compressor can be reduced. In addition, the structure of the dehumidifier is simple, and an additional external heating source is not required.
    Type: Application
    Filed: October 23, 2012
    Publication date: July 4, 2013
    Applicant: Korea Institute of Energy Research
    Inventor: Korea Institute of Energy Research
  • Publication number: 20130152625
    Abstract: The present invention provides a receiver drier for a vehicle air conditioner including: a tubular body into which a desiccant bag is inserted, and on the outer side of which a refrigerant inlet, through which a refrigerant is introduced from a condenser, and a refrigerant outlet, through which a liquid refrigerant flows out into a sub-cooling zone, are formed, the body having an opening at the lower portion thereof; a filter installed in the body; and a cap having a cap body inserted in and coupled to the opening of the body, wherein a lower part of the filter is inserted into the upper peripheral surface of the cap body, and a guide member protrudes from the top surface of the cap body toward the inner side of the filter and guides the refrigerant supplied through the refrigerant inlet to smoothly flow out through the refrigerant outlet.
    Type: Application
    Filed: July 7, 2011
    Publication date: June 20, 2013
    Applicant: DOOWON CLIMATE CONTROL CO., LTD.
    Inventors: Ill Jae Lee, Myung Soo Jang
  • Publication number: 20130145789
    Abstract: A condenser apparatus may include a first heat-radiating portion formed by stacking a plurality of plates, fluid-connected to the radiator to circulate the coolant, and fluid-connected to the compressor to circulate the refrigerant supplied from the compressor so as to condense the refrigerant through heat-exchange with the coolant and the refrigerant, a second heat-radiating portion integrally formed at a lower portion of the first heat-radiating portion and fluid-connected thereto, and a receiver-drier portion integrally formed at each one end of the first and second heat-radiating portions and fluid-connected to the first heat-radiating portion to receive a condensed refrigerant from the first heat-radiating portion and performing gas-liquid separation and moisture removal of the refrigerant, wherein the first heat-radiating portion may be provided with a gas-liquid separating portion which separates the refrigerant into gas refrigerant and liquid refrigerant.
    Type: Application
    Filed: June 21, 2012
    Publication date: June 13, 2013
    Applicant: Hyundai Motor Company
    Inventor: Jae Yeon KIM
  • Publication number: 20130091886
    Abstract: Apparatuses and methods are provided for facilitating cooling of an electronic component. The apparatus includes a vapor-compression refrigeration system. The vapor-compression refrigeration system includes an expansion component, an evaporator, a compressor, and a condenser coupled in fluid communication via a refrigerant flow path. The evaporator is coupled to and cools the electronic component. The apparatus further includes a contaminant extractor coupled in fluid communication with the refrigerant flow path. The extractor includes a refrigerant boiling filter and a heater. At least a portion of refrigerant passing through the refrigerant flow path passes through the refrigerant boiling filter, and the heater provides heat to the refrigerant boiling filter to boil refrigerant passing through the filter. By boiling refrigerant passing through the filter, contaminants are extracted from the refrigerant, and are deposited in the refrigerant boiling filter.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 18, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Levi A. CAMPBELL, Richard C. CHU, Evan G. Colgan, Milnes P. DAVID, Michael J. ELLSWORTH, JR., Madhusudan K. IYENGAR, Robert E. SIMONS