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公开(公告)号：US20240019183A1
公开(公告)日：2024-01-18
申请号：US18373097
申请日：2023-09-26
发明人： Ryuhei KAJI , Eiji KUMAKURA , Atsushi YOSHIMI , Masaki TANAKA , Hiroki UEDA , Masaki NAKAYAMA
IPC分类号： F25B45/00
CPC分类号： F25B45/00
摘要： A refrigerant recovery system includes a cylinder, a first detection unit, and a control unit. The cylinder accommodate a refrigerant filling a refrigeration cycle apparatus. The first detection unit detects a predetermined physical quantity in order to calculate a composition of the refrigerant accommodated in the cylinder. The control unit acquires a result of detection by the first detection unit and outputs the result as a first detection result.
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公开(公告)号：US20240027105A1
公开(公告)日：2024-01-25
申请号：US18375000
申请日：2023-09-29
发明人： Atsushi YOSHIMI , Takuro YAMADA , Eiji KUMAKURA , Ikuhiro IWATA , Takeru MIYAZAKI , Hiroki UEDA , Masaki TANAKA , Masaki NAKAYAMA , Osamu TANAKA , Hirokazu FUJINO , Ryuhei KAJI
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 using a first refrigerant having 1 MPa or less at 30° C. and a second refrigerant having 1.5 MPa or more at 30° C. performs a heating operation by performing a two-stage refrigeration cycle including a use-side refrigeration cycle using the first refrigerant and a heat-source-side refrigeration cycle using the second refrigerant, 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：US20240019184A1
公开(公告)日：2024-01-18
申请号：US18373594
申请日：2023-09-27
发明人： Hiroki UEDA , Atsushi YOSHIMI , Eiji KUMAKURA , Masaki TANAKA , Masaki NAKAYAMA , Ryuhei KAJI
CPC分类号： F25B45/00 , F25B43/00 , F25B2345/002 , F25B2345/001
摘要： A refrigerant recovery system performs separation of a first refrigerant from a refrigerant including the first refrigerant, and recovery of the refrigerant. The refrigerant recovery system includes a separation unit that perform the separation of the first refrigerant, and a storage unit that stores the refrigerant before the first refrigerant is separated or after the first refrigerant is separated.
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公开(公告)号：US20240019178A1
公开(公告)日：2024-01-18
申请号：US18374327
申请日：2023-09-28
发明人： Masaki TANAKA , Eiji KUMAKURA , Ikuhiro IWATA , Ryuhei KAJI , Atsushi YOSHIMI , Hiroki UEDA , Takuro YAMADA , Masaki NAKAYAMA
CPC分类号： F25B9/006 , F25B49/00 , F25B2700/00
摘要： A refrigeration cycle apparatus includes a main refrigerant circuit, a changer, and a controller. The main refrigerant circuit uses a non-azeotropic refrigerant mixture containing a first refrigerant and a second refrigerant. The changer changes a composition ratio between the first refrigerant and the second refrigerant in a refrigerant flowing through the main refrigerant circuit. The controller controls an operation of the changer. The controller executes a first mode and a second mode. The first mode is a mode in which the operation of the changing unit is controlled to cause substantially the second refrigerant alone to flow through the main refrigerant circuit. The second mode is a mode in which the operation of the changing unit is controlled to cause a refrigerant mixture of the first refrigerant and the second refrigerant to flow through the main refrigerant circuit.
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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：US20240019181A1
公开(公告)日：2024-01-18
申请号：US18374904
申请日：2023-09-29
发明人： Hiroki UEDA , Atsushi YOSHIMI , Eiji KUMAKURA , Masaki TANAKA , Masaki NAKAYAMA , Ryuhei KAJI
CPC分类号： F25B43/00 , F25B9/008 , F25B9/006 , F25B2600/2501 , F25B2400/23 , F25B2400/08
摘要： A refrigeration cycle apparatus includes a refrigeration cycle, an adsorption section, and a first bypass flow path. The refrigeration cycle includes a compressor, a radiator, an expansion mechanism, and an evaporator, and uses a non-azeotropic refrigerant mixture including a first refrigerant and a second refrigerant. The adsorption section includes an adsorbent and stores the first refrigerant adsorbed by the adsorbent. The adsorbent adsorbs the first refrigerant, and does not adsorb the second refrigerant or the adsorption performance thereof for the second refrigerant is lower than the adsorption performance thereof for the first refrigerant. The first bypass flow path connects a first end which is a high-pressure part of the refrigeration cycle and a second end which is a low-pressure part of the refrigeration cycle. The adsorption section and a valve are disposed in the first bypass flow path.
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公开(公告)号：US20230417459A1
公开(公告)日：2023-12-28
申请号：US18215025
申请日：2023-06-27
发明人： Eiji KUMAKURA , Ryuhei KAJI , Hiroki UEDA , Masaki TANAKA , Kosuke NISHIMURA , Kazuhiro FURUSHO , Yoshimasa KIKUCHI , Hirofumi DAIGUJI , Arun MAJUMDAR , Wei-Lun HSU , Jubair Ahmed SHAMIM
CPC分类号： F25B25/02 , F25B9/002 , F25B2309/06
摘要： A refrigeration cycle apparatus includes a refrigerant circuit and an adsorbent. The refrigerant circuit includes a compressor that compresses a refrigerant. The refrigerant circuit configures a vapor compression refrigeration cycle in which the refrigerant circulates. The adsorbent adsorbs and desorbs the refrigerant circulating in the refrigerant circuit. The adsorbent adsorbs and desorbs the refrigerant in accordance with a change in a pressure of the refrigerant circulating in the refrigerant circuit.
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公开(公告)号：US20240027115A1
公开(公告)日：2024-01-25
申请号：US18374453
申请日：2023-09-28
发明人： Eiji KUMAKURA , Ryuhei KAJI , Atsushi YOSHIMI , Masaki TANAKA , Hiroki UEDA , Masaki NAKAYAMA
CPC分类号： F25B49/02 , F25B9/002 , F25B41/20 , F25B2700/19 , F25B2700/21
摘要： In an air conditioner, during an operation, a gas-liquid two-phase non-azeotropic mixture refrigerant enters a receiver and accumulates in the receiver in a state where a gas phase and a liquid phase are separated. For example, when the non-azeotropic mixture refrigerant includes two components, i.e., a high-boiling refrigerant and a low-boiling refrigerant, the controller may estimate the ratio (composition ratio) between the low-boiling refrigerant and the high-boiling refrigerant in each of the gas phase and the liquid phase based on the temperature and the pressure of the non-azeotropic mixture refrigerant in the receiver. Thus, the controller may estimate the composition ratio of the liquid-phase non-azeotropic mixture refrigerant flowing out of the receiver as the composition ratio of the non-azeotropic mixture refrigerant circulating in the refrigerant circuit.
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