Patents Examined by Larry L Furdge
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Patent number: 11976855Abstract: A heat exchanger and an air conditioner including the same. The heat exchanger includes a plurality of heat transfer tubes formed in a flat shape and configured to allow a refrigerant to flow in a vertical direction therein. The heat transfer tube includes a gas refrigerant region including one end connected to a refrigerant inlet port and another end disposed above the refrigerant inlet port; a two-phase refrigerant region including one end connected to the other end of the gas refrigerant region and another end disposed below a refrigerant outlet port; and a liquid refrigerant region including one end connected to the other end of the two-phase refrigerant region and another end connected to the refrigerant outlet port.Type: GrantFiled: November 13, 2020Date of Patent: May 7, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Hyunyoung Kim, Yo Agata, Kentaro Imagawa, Tadahiro Nakagawa, Takeshi Takahara
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Patent number: 11959667Abstract: A suction injection pipe and a subcooling heat exchanger are provided at a main refrigerant circuit in which a main refrigerant circulates. Further, a sub-refrigerant circuit that differs from the main refrigerant circuit and in which a sub-refrigerant circulates is provided. A controller performs control for switching between a cooling action of the subcooling heat-exchanger that cools the main refrigerant that is sent to a main use-side heat exchanger by using the suction injection pipe and the subcooling heat exchanger, and a cooling action of the sub-refrigerant-circuit that cools the main refrigerant that is sent to the main use-side heat exchanger by using the sub-refrigerant circuit.Type: GrantFiled: September 27, 2019Date of Patent: April 16, 2024Assignee: Daikin Industries, Ltd.Inventors: Ikuhiro Iwata, Eiji Kumakura, Kazuhiro Furusho, Ryusuke Fujiyoshi, Hiromune Matsuoka
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Patent number: 11940188Abstract: A heat-pump system includes a compressor, an outdoor heating exchanger, an indoor heat exchanger, an expansion device, and a supplemental heater. The outdoor heat exchanger is in fluid communication with the compressor. The indoor heat exchanger is in fluid communication with the compressor. The expansion device is in fluid communication with the indoor and outdoor heat exchangers. The supplemental heater includes a burner and a working-fluid conduit. The burner is configured to burn a fuel and heat the working-fluid conduit. When the heat-pump system is operating in a heating mode, the indoor heat exchanger receives working fluid from the working-fluid conduit such that the working fluid flows from an outlet of the working-fluid conduit to an inlet of the indoor heat exchanger.Type: GrantFiled: March 23, 2021Date of Patent: March 26, 2024Assignee: Copeland LPInventors: Brian R. Butler, Andrew M. Welch, David A. Alfano, Natarajan Rajendran
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Patent number: 11927380Abstract: A refrigeration apparatus includes: a compressor; a first heat exchanger that allows a first heating medium compressed by the compressor to flow therein and to radiate heat of the first heating medium; a second heat exchanger that allows the first heating medium having passed the first heat exchanger and a second heating medium cooling a cooling target to flow therein, and causes heat exchange between the first heating medium and the second heating medium; a first temperature sensor that detects temperature of the second heating medium in the second heat exchanger; and a control device that controls an operating frequency of the compressor.Type: GrantFiled: June 2, 2023Date of Patent: March 12, 2024Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Satoshi Kawano, Daiki Onozato
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Patent number: 11920832Abstract: In a transport container for transporting temperature-sensitive transport goods comprising a chamber for receiving the transport goods, a casing enclosing the chamber and at least one cooling element for temperature control of the chamber, the cooling element comprises an evaporation element with a cooling surface and a desiccant for receiving coolant evaporated in the evaporation element. The transport container further comprises a latent heat accumulator that communicates with the chamber for heat exchange.Type: GrantFiled: August 9, 2017Date of Patent: March 5, 2024Assignee: REP IP AGInventor: Nico Ros
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Patent number: 11906240Abstract: A refrigerator includes a receiving chamber and a drawer movably received in the receiving chamber. The drawer is at a first location when it is closed. The refrigerator further includes a first sensor that is fixed to the drawer or a wall of the receiving chamber. The first sensor is configured to detect when the drawer reaches a second location. The first and second locations are spaced apart by a spacing distance.Type: GrantFiled: November 27, 2019Date of Patent: February 20, 2024Assignee: BSH Hausgeraete GmbHInventors: Li Du, Jing Hong, Yu Xia
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Patent number: 11906219Abstract: A refrigeration cycle may include a compressor and a flash tank. The flash tank is configured for receiving a refrigerant and separating liquid refrigerant and vapour refrigerant. The compressor is configured for compressing the refrigerant and includes a suction port and an injection port. The flash tank is connected to the injection port of the compressor via an injection valve. A method of controlling injection into the compressor includes determining a pressure in the flash tank and controlling the injection valve based on the determined pressure in the flash tank.Type: GrantFiled: April 22, 2021Date of Patent: February 20, 2024Assignee: Copeland Europe GmbHInventors: Eric Winandy, Remi Dickes, Paolo Chiaramonte, Luca Mazzorana
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Patent number: 11892212Abstract: A gas-liquid separator includes a first cylinder, a second cylinder and a heat exchange assembly. The first cylinder is surrounded by the second cylinder at a predetermined distance. The heat exchange assembly is arranged between the first cylinder and the second cylinder. The heat exchange assembly includes a collecting pipe. An extension direction of the collecting pipe is parallel to an axial direction of the first cylinder. At least a part of a side wall surface of the first cylinder is formed with an avoidance portion recessed inwardly. At least a part of the collecting pipe is arranged between the avoidance portion and the second cylinder.Type: GrantFiled: August 22, 2019Date of Patent: February 6, 2024Assignee: ZHEJIANG SANHUA INTELLIGENT CONTROLS CO., LTD.Inventors: Li Li, Mei Wang, Junqi Dong
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Patent number: 11859886Abstract: An ice making assembly includes a conductive ice mold, an insulator ice mold, and an external insulator jacket. The conductive ice mold extends along a vertical direction between a top conductive mold end and a bottom conductive mold end. The conductive ice mold defines a mold cavity having a vertical opening at the top conductive mold end. The insulator ice mold is selectively received on the conductive ice mold and covers the vertical opening. The insulator ice mold defines an internal water passage extending above the mold cavity in fluid communication with the mold cavity. The external insulator jacket is selectively received on the insulator ice mold and covers the internal water passage.Type: GrantFiled: August 11, 2021Date of Patent: January 2, 2024Assignee: Haier US Appliance Solutions, Inc.Inventor: Brian Culley
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Patent number: 11859875Abstract: A refrigerant circuit includes a compressor operable to compress a refrigerant, an expansion valve, an outdoor heat exchanger, an indoor heat exchanger in a fresh air inlet to a conditioned space, a recovery heat exchanger in an extracted air outlet from the conditioned space, and a reversing valve operable to direct a direction of refrigerant flow between a cooling mode and a heating mode.Type: GrantFiled: January 27, 2021Date of Patent: January 2, 2024Assignee: LGL France S.A.S.Inventor: Bastien Jovet
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Patent number: 11852388Abstract: A heat pump arrangement includes a heat pump device, an evaporator cycle interface for inputting liquid to be cooled into the heat pump device and for outputting cooled liquid out of the heat pump device, a condenser cycle interface for inputting liquid to be heated into the heat pump device and for outputting heated liquid out of the heat pump device, a controllable heat exchanger for controllably coupling the evaporator cycle interface and the condenser cycle interface, and a control for controlling the controllable heat exchanger in dependence on an evaporator cycle temperature in the evaporator cycle interface or a condenser cycle temperature in the condenser cycle interface.Type: GrantFiled: January 8, 2020Date of Patent: December 26, 2023Assignee: EFFICIENT ENERGY GMBHInventors: Oliver Kniffler, Jürgen Süss
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Patent number: 11841179Abstract: A heating, ventilation, and air-conditioning (“HVAC”) system for use with a refrigerant. The HVAC system includes a compressor, a condenser, an expansion device, an evaporator, and a separator. The compressor is operable to compress the refrigerant. The condenser is positioned downstream of the compressor and operable to condense the refrigerant. The expansion device is positioned downstream of the condenser and operable to reduce a pressure of the refrigerant flowing therethrough. The evaporator is positioned downstream of the expansion device and operable to vaporize the refrigerant from the expansion device. The separator is positioned downstream of the expansion device and operable to separate the refrigerant into liquid refrigerant and gaseous refrigerant. The gaseous refrigerant from the separator and the liquid refrigerant from the separator are combined prior to being compressed by the compressor.Type: GrantFiled: January 14, 2020Date of Patent: December 12, 2023Assignee: Goodman Global Group, Inc.Inventor: Michael F Taras
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Patent number: 11828510Abstract: An air conditioning apparatus includes a refrigerant circuit, a suction temperature sensor, and a controller. In the refrigerant circuit, a compressor, a radiator, an expansion valve, an evaporator, and an accumulator are connected in order. The controller controls the number of revolutions of the compressor and the opening degree of the expansion valve. On determination that a refrigerant and a lubricating oil are separated inside the accumulator based on a detection result of the suction temperature sensor, the controller executes control of step to decrease the number of revolutions of the compressor, and executes control of step to set the opening degree of the expansion valve to a predetermined opening degree.Type: GrantFiled: March 31, 2022Date of Patent: November 28, 2023Assignee: DAIKIN INDUSTRIES, LTD.Inventor: You Tomiyama
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Patent number: 11828507Abstract: The present application discloses an air conditioning system and a control method therefore. An intermediate heat exchanger can include a first heat exchange portion and a second heat exchange portion, a first end of the first heat exchange portion is in communication with an inlet of a compressor, a second end of the first heat exchange portion is communicable with an outlet of a second heat exchanger and/or a second end of the first heat exchanger, a first end of the second heat exchange portion is communicable with a first end of the first heat exchanger, and a second end of the second heat exchange portion is communicable with an inlet of the second heat exchanger and/or an outlet of the compressor. In the refrigeration mode, the first branch can have an adjustable amount of flow.Type: GrantFiled: September 25, 2019Date of Patent: November 28, 2023Assignee: HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD.Inventors: Qiaofeng Liu, Junqi Dong, Shiwei Jia
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Patent number: 11815299Abstract: A refrigeration apparatus based on a molecular sieve, including a first molecular sieve device, a second molecular sieve device, a reversing valve, and a balancing valve, wherein an air flow alternately passes through the first molecular sieve device and the second molecular sieve device through the reversing valve, and then flows back through the balancing valve, so that the first molecular sieve device and the second molecular sieve device are regenerated. The first molecular sieve device and the second molecular sieve device are capable of separating a refrigerant from a depressurization gas, and the refrigerant is condensed after reaching a certain concentration to become a liquid refrigerant, and then enters an evaporator again for refrigeration.Type: GrantFiled: June 28, 2021Date of Patent: November 14, 2023Assignee: WUYI UNIVERSITYInventors: Min Wu, Yijia Wu, Ji Wu, Guangwei Chen
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Patent number: 11808500Abstract: An apparatus includes a high side heat exchanger, a heat exchanger, a flash tank, a first expansion valve, a second expansion valve, a load, a first compressor, and a second compressor. During a first mode of operation, the second expansion valve directs refrigerant from the flash tank to the load. The refrigerant from the load bypasses the first compressor. The heat exchanger transfers heat from the refrigerant from the high side heat exchanger to the refrigerant from the load. The second compressor compresses the refrigerant from the heat exchanger. During a second mode of operation, the first expansion valve directs refrigerant from the flash tank to the load. The first compressor compresses the refrigerant from the load and the second compressor compresses the refrigerant from the first compressor before the refrigerant from the first compressor reaches the high side heat exchanger.Type: GrantFiled: July 8, 2021Date of Patent: November 7, 2023Assignee: Heatcraft Refrigeration Products LLCInventor: Shitong Zha
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Patent number: 11802725Abstract: The air-conditioning apparatus includes the plurality of heat source apparatuses; a plurality of indoor units each including an indoor heat exchanger and each configured to perform one of cooling and heating operations; a relay device connected to the heat source apparatuses by a high pressure pipe and a low pressure pipe and configured to distribute refrigerant flowing therein from the heat source apparatuses to the plurality of indoor units; and a controller configured to control operations of the heat source apparatuses. The relay device includes a relay device temperature detecting unit configured to detect a temperature of the refrigerant flowing through the bypass pipe. During the heating main operation, the controller changes an opening degree of each of the outdoor side expansion devices based on the temperature detected by the relay device temperature detecting unit.Type: GrantFiled: September 15, 2017Date of Patent: October 31, 2023Assignee: Mitsubishi Electric CorporationInventor: Hiroyuki Okano
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Patent number: 11802726Abstract: A refrigeration cycle device includes a compressor to compress refrigerant, a suction-side detector to detect a pressure of the refrigerant to be suctioned into the compressor, a discharge-side detector to detect a pressure of the refrigerant discharged from the compressor, and controlling circuitry that controls the compressor. When the ratio of a second pressure value detected by the discharge-side detector to a first pressure value detected by the suction-side detector is not between a predetermined upper limit and a predetermined lower limit, the controlling circuitry controls the compressor such that the ratio falls between the predetermined upper limit and the predetermined lower limit.Type: GrantFiled: December 6, 2018Date of Patent: October 31, 2023Assignee: Mitsubishi Electric CorporationInventors: Tsuyoshi Matsuo, Masafumi Tomita, Mizuo Sakai
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Patent number: 11796235Abstract: An air conditioner based on a molecular sieve, including a first molecular sieve device, a second molecular sieve device, a reversing valve, and a balancing valve, a refrigerant includes at least one of R600A, R417A, R410C, or R407C, and a depressurized gas includes at least one of hydrogen or helium. An air flow alternately passes through the first molecular sieve device and the second molecular sieve device through the reversing valve, and then flows back through the balancing valve, so that the first molecular sieve device and the second molecular sieve device are regenerated. The first molecular sieve device and the second molecular sieve device are capable of separating a refrigerant from a depressurized gas, and the refrigerant is condensed after reaching a certain concentration to become a liquid refrigerant, and then enters an evaporator again for refrigeration.Type: GrantFiled: June 28, 2021Date of Patent: October 24, 2023Assignee: WUYI UNIVERSITYInventors: Min Wu, Yijia Wu, Ji Wu, Guangwei Chen
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Patent number: 11768021Abstract: A refrigerator based on a molecular sieve, including a first molecular sieve device, a second molecular sieve device, a reversing valve, and a balancing valve, wherein an air flow alternately passes through the first molecular sieve device and the second molecular sieve device through the reversing valve, and then flows back through the balancing valve, so that the first molecular sieve device and the second molecular sieve device are regenerated. The first molecular sieve device and the second molecular sieve device are capable of separating a refrigerant from a depressurized gas, and the refrigerant is condensed after reaching a certain concentration to become a liquid refrigerant, and then enters an evaporator again for refrigeration.Type: GrantFiled: June 28, 2021Date of Patent: September 26, 2023Assignee: WUYI UNIVERSITYInventors: Min Wu, Yijia Wu, Ji Wu, Guangwei Chen