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公开(公告)号：US20240328658A1
公开(公告)日：2024-10-03
申请号：US18739726
申请日：2024-06-11
发明人： Tsunahiro ODO , Takashi TAKAHASHI , Shota TSURUZONO , Takuya HANADA , Naotoshi FUJITA , Yoshiki YAMANOI , Yuta IYOSHI , Kumiko SAEKI , Takeru MIYAZAKI , Nobuki MATSUI , Toshiyuki MAEDA , Tetsuya OKAMOTO
IPC分类号： F24F11/64 , F24F11/00 , F24F11/46 , F24F11/77 , F24F11/86 , F24F110/10 , F24F110/20 , F24F140/50 , F24F140/60
CPC分类号： F24F11/64 , F24F11/0008 , F24F11/46 , F24F11/77 , F24F11/86 , F24F2110/10 , F24F2110/20 , F24F2140/50 , F24F2140/60 , F24F2203/021
摘要： The air-conditioning system according to an embodiment is provided with a ventilation device, an air-conditioner, a processor, and a memory storing one or more programs, which when executed, cause the processor to control the ventilation device and the air-conditioner. The processor stores a first capability indicating a heat load that can be output corresponding to the power consumption of the ventilation device and a second capability indicating a heat load that can be output corresponding to the power consumption of the air conditioner, acquires the temperature of an indoor space, and sets the ventilation device and the air conditioner to share the first heat load that needs to be adjusted in the indoor space calculated based on the temperature of the indoor space according to the first capability and the second capability.
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公开(公告)号：US20240027104A1
公开(公告)日：2024-01-25
申请号：US18374425
申请日：2023-09-28
发明人： Hiroki IKARASHI , Atsushi YOSHIMI , Takuro YAMADA , Eiji KUMAKURA , Ikuhiro IWATA , Ryuhei KAJI , Takeru MIYAZAKI , Hiroki UEDA , Masaki TANAKA , Masaki NAKAYAMA , Hideho SAKAGUCHI , Osamu TANAKA , Hirokazu FUJINO
摘要： A refrigeration cycle apparatus includes a first refrigerant circuit and a second refrigerant circuit so as to improve the efficiency of operations. A first refrigerant circuit using a first refrigerant having a pressure of 1.2 MPa or less at 30° C. and a second refrigerant circuit using a second refrigerant having a pressure of 1.5 MPa or more at 30° C. are provided, and a dual cycle operation in which the first refrigerant circuit and the second refrigerant circuit are simultaneously operated to exchange heat between the first refrigerant and the second refrigerant and a single cycle operation in which the first refrigerant circuit is operated without operating the second refrigerant circuit to perform a cooling operation or heating operation are enabled in a switchable manner.
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公开(公告)号：US20240019176A1
公开(公告)日：2024-01-18
申请号：US18374754
申请日：2023-09-29
发明人： Atsushi YOSHIMI , Takuro YAMADA , Eiji KUMAKURA , Ikuhiro IWATA , Ryuhei KAJI , Takeru MIYAZAKI , Hiroki UEDA , Masaki TANAKA , Masaki NAKAYAMA
CPC分类号： F25B7/00 , F25B29/003 , F25B9/002
摘要： A refrigeration cycle apparatus efficiently performs a cooling operation and a heating operation using a low-pressure refrigerant and a high-pressure refrigerant. A refrigeration cycle apparatus performs a heating operation by performing a two-stage refrigeration cycle, the two-stage refrigeration cycle including a use-side refrigeration cycle using a first refrigerant having 1 MPa or less at 30° C. and a heat-source-side refrigeration cycle using a second refrigerant having 1.5 MPa or Imre at 30° C., and performs a cooling operation by performing a single-stage refrigeration cycle using the first refrigerant.
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公开(公告)号：US20240328648A1
公开(公告)日：2024-10-03
申请号：US18742652
申请日：2024-06-13
发明人： Takeru MIYAZAKI , Yoshiki YAMANOI , Yuta IYOSHI , Kumiko SAEKI , Masashi SAITO
CPC分类号： F24F11/0001 , F24F7/00 , F24F11/32
摘要： A ventilation system includes a refrigerant circuit, supply and exhaust fans, and a control unit. The refrigerant circuit has a compressor and first and second heat exchangers connected by a refrigerant pipe with a refrigerant flowing in the refrigerant circuit. The supply fan is arranged to supply air from an outdoor space to an indoor space through the first heat exchanger. The exhaust fan is arranged to exhaust air in the indoor space to the outdoor space through the second heat exchanger. The control unit determines whether the supply fan and the exhaust fan are normal. The control unit, upon determining that one of the supply fan or the exhaust fan is abnormal, stops the one of the supply fan or the exhaust fan determined to be abnormal, and continues an operation of an other one of the supply fan or the exhaust fan determined to be normal.
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公开(公告)号：US20230228464A1
公开(公告)日：2023-07-20
申请号：US18125299
申请日：2023-03-23
发明人： Takeru MIYAZAKI , Teruo KIDO , Takuro YAMADA , Atsushi YOSHIMI , Ikuhiro IWATA , Eiji KUMAKURA
CPC分类号： F25B15/002 , F25B49/043 , F25B41/40
摘要： A heat transfer method uses a heat transfer system including: a heat source unit in which heat is exchanged between a heat transfer medium and a heat source; a utilization unit in which heat is exchanged between the heat transfer medium and a temperature adjustment target; and a first flow path and a second flow path that connect the heat source unit and the utilization unit. The heat transfer medium flows through the first flow path from the heat source unit to the utilization unit, and flows through the second flow path from the utilization unit to the heat source unit. In the heat transfer method, inorganic hydrate slurry, in which an inorganic hydrate that absorbs heat when dissolved in water is mixed with water, is used as the heat transfer medium.
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公开(公告)号：US20220220353A1
公开(公告)日：2022-07-14
申请号：US17656952
申请日：2022-03-29
发明人： Atsushi YOSHIMI , Eiji KUMAKURA , Ikuhiro IWATA , Takeru MIYAZAKI , Takuro YAMADA , Yoshiki YAMANOI , Yuuta IYOSHI
摘要： An air conditioning apparatus is an air conditioning apparatus dedicated to cooling and includes a first circuit and a second circuit. The first circuit has an outdoor heat exchanger that cools a first refrigerant by outdoor air. In the second circuit, a first heat transfer medium that is cooled by exchanging heat with the first refrigerant that flows in the first circuit flows. The first refrigerant is a HFO refrigerant having a critical temperature higher than that of R32.
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公开(公告)号：US20240263826A1
公开(公告)日：2024-08-08
申请号：US18638848
申请日：2024-04-18
发明人： Takeru MIYAZAKI , Yoshiki YAMANOI , Yuta IYOSHI , Kumiko SAEKI
IPC分类号： F24F11/65 , F24F12/00 , F24F110/10 , F24F120/10
CPC分类号： F24F11/65 , F24F12/001 , F24F2110/10 , F24F2120/10
摘要： A ventilation system 1 includes: a refrigerant circuit 60; an air supply fan 22 that draws outdoor air into an indoor space through a first heat exchanger 12 of the refrigerant circuit 60; an exhaust fan 42 that exhausts indoor air to an outdoor space through a second heat exchanger 32 of the refrigerant circuit 60; a temperature sensor 24 for detecting a blow-out temperature TS of the air supply fan 22; a monitoring sensor 80 for detecting indoor state information CT; and a control unit CU that adjusts indoor ventilation rate. The types of control modes performed by the control unit CU include a first mode and a second mode described below. First mode: A control mode having higher weighting on the state information CT, among the state information CT and the blow-out temperature TS that are usable for adjusting the indoor ventilation rate. Second mode: A control mode having higher weighting on the blow-out temperature TS, among the state information CT and the blow-out temperature TS that are usable for adjusting the indoor ventilation rate.
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公开(公告)号：US20220221204A1
公开(公告)日：2022-07-14
申请号：US17707220
申请日：2022-03-29
发明人： Takeru MIYAZAKI , Hiromune MATSUOKA , Atsushi YOSHIMI , Eiji KUMAKURA , Ikuhiro IWATA , Tomoatsu MINAMIDA , Takuro YAMADA
摘要： In a refrigeration cycle apparatus, a switching mechanism includes a first channel and performs switching among a first, second and third connection states. In the first connection state, the refrigeration cycle apparatus repeatedly performs a first cycle in which refrigerant flows through a compressor, a first heat exchanger, a second heat exchanger, and the compressor in that order. In the second connection state, the refrigeration cycle apparatus repeatedly performs a second cycle in which refrigerant flows through the compressor, the second heat exchanger, the first heat exchanger, and the compressor in that order. In the third connection state, a passage between the compressor and the first heat exchanger and a passage between the compressor and the second heat exchanger are closed, and the first channel in the refrigeration cycle apparatus provides interconnection between the first heat exchanger and the second heat exchanger.
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公开(公告)号：US20220221168A1
公开(公告)日：2022-07-14
申请号：US17707466
申请日：2022-03-29
摘要： An air conditioner includes an ejector that raises a pressure of refrigerant by using energy for refrigerant decompression and expansion. A switching mechanism switches between a refrigerant flow in a first operation and a refrigerant flow in a second operation. The air conditioner is configured such that in the first operation, refrigerant compressed by a compression mechanism radiates heat in a use-side heat exchanger and is decompressed and expanded by the ejector while refrigerant evaporated in a heat-source-side heat exchanger is raised in pressure by the ejector. The air conditioner is configured such that in the second operation, refrigerant compressed by the compression mechanism radiates heat in the heat-source-side heat exchanger and is decompressed and expanded by a first expansion valve before being evaporated in the use-side heat exchanger while refrigerant does not flow through the ejector.
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公开(公告)号：US20240337401A1
公开(公告)日：2024-10-10
申请号：US18743804
申请日：2024-06-14
发明人： Takashi TAKAHASHI , Tsunahiro ODO , Shota TSURUZONO , Nobuki MATSUI , Takuya HANADA , Naotoshi FUJITA , Yoshiki YAMANOI , Yuta IYOSHI , Kumiko SAEKI , Takeru MIYAZAKI , Toshiyuki MAEDA , Tetsuya OKAMOTO
IPC分类号： F24F11/43 , F24F11/81 , F24F11/84 , F24F140/20
CPC分类号： F24F11/43 , F24F11/81 , F24F11/84 , F24F2140/20
摘要： A ventilation apparatus includes a processor; a compressor; a first heat exchanger; a first air flow path configured to supply air from outdoors to an indoor space after passing through the first heat exchanger; a second heat exchanger; a second air flow path configured to exhaust air from the indoor space to the outdoors after passing through the second heat exchanger; and a refrigerant circuit through which a refrigerant flows, the refrigerant circuit being connected to the compressor, and the first and second heat exchangers. The processor detects whether a predetermined reference indicating a possibility of frosting in the second heat exchanger is satisfied while the second heat exchanger is functioning as an evaporator, and controls a temperature of the refrigerant flowing through the second heat exchanger such that the second heat exchanger will have a temperature at which frosting does not occur, when the predetermined reference is satisfied.
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