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Patent Agency Ranking
公开(公告)号：US10077922B2
公开(公告)日：2018-09-18
申请号：US15309576
申请日：2015-04-27
Inventor： Akira Fujitaka , Fuminori Sakima , Yoshikazu Kawabe , Atsushi Sakuda , Hiroaki Nakai , Shigehiro Sato , Kenji Takaichi
IPC: C09K5/04 , F25B1/04 , C10M137/04 , C10M107/24 , C10M129/10 , F04B39/00 , F04C18/02 , F04C28/26 , F04C29/02 , F04C29/12 , F25B31/00 , F04C23/00 , F04C27/00 , F04C29/00
CPC classification number: F25B1/04 , C09K5/04 , C09K5/045 , C09K2205/122 , C09K2205/126 , C09K2205/22 , C09K2205/32 , C10M107/24 , C10M129/10 , C10M137/04 , C10M2203/0206 , C10M2203/024 , C10M2207/023 , C10M2207/026 , C10M2207/0406 , C10M2209/04 , C10M2223/04 , C10N2220/302 , C10N2230/10 , C10N2240/30 , F04B39/00 , F04C18/0215 , F04C18/0253 , F04C18/0269 , F04C18/0292 , F04C23/008 , F04C27/005 , F04C28/26 , F04C29/0085 , F04C29/02 , F04C29/12 , F04C2210/26 , F04C2240/30 , F04C2240/803 , F25B31/002 , F25B2600/01 , F25B2600/0262 , H05K999/99
Abstract: A compressor uses a refrigerant containing R1123 (1,1,2-trifluoroethylene) as a working fluid, and uses a polyvinyl ether oil as a compressor lubricating oil. In addition, a fixed scroll (12) and a revolving scroll (13) each having a spiral lap rising from an end plate, and a compression chamber (15) which is formed by meshing the fixed scroll (12) and the revolving scroll (13), are provided. In addition, a discharge hole (18) which is provided at a center position of the end plate of the fixed scroll (12), and is open to a discharge chamber (31), a bypass hole (68) which is provided in the end plate of the fixed scroll (12), and communicates with the compression chamber (15) and the discharge chamber (31) at a timing different from a timing at which the compression chamber (15) communicates with the discharge hole (18), and a check valve which is provided in the bypass hole (68), and allows a flow from the compression chamber (15) side to the discharge chamber (31) side.
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公开(公告)号：US10591188B2
公开(公告)日：2020-03-17
申请号：US15309977
申请日：2015-05-08
Inventor： Fuminori Sakima , Akira Fujitaka , Shigehiro Sato , Kenji Takaichi , Yoshikazu Kawabe , Hiroaki Nakai
Abstract: A refrigeration cycle device includes a refrigeration cycle formed by connecting a compressor, a condenser, an expansion valve and an evaporator to each other. As a refrigerant in the refrigeration cycle, a working fluid containing 1,1,2-trifluoroethylene (R1123) and difluoromethane (R32) is used. A degree of opening of the expansion valve is controlled such that the refrigerant has two phases at a suction portion of the compressor.
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公开(公告)号：US10590934B2
公开(公告)日：2020-03-17
申请号：US15567558
申请日：2016-06-07
Inventor： Fuminori Sakima , Akira Fujitaka , Hiroaki Nakai , Akihiro Kyogoku , Hideaki Matsuo , Shigehiro Sato , Kenji Takaichi
Abstract: The present invention includes a refrigeration cycle circuit that includes compressor, indoor heat exchanger, expansion valve, and outdoor heat exchanger that are connected to each other. A working fluid containing R1123 (1,1,2-trifluoroethylene) and R32 (difluoromethane) is used as a refrigerant sealed in the refrigeration cycle circuit, and an electric motor driving device that drives an electric motor of compressor includes a rotational speed estimator. The rotational speed estimator estimates rotational speed based on information on a detection value of an electric current input to the electric motor or a magnetic pole position of a rotor that constitutes the electric motor.
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公开(公告)号：US10215451B2
公开(公告)日：2019-02-26
申请号：US15309567
申请日：2015-04-27
Inventor： Akira Fujitaka , Fuminori Sakima , Yoshikazu Kawabe , Atsushi Sakuda , Hiroaki Nakai , Shigehiro Sato , Kenji Takaichi
IPC: F25B1/04 , C09K5/04 , C10M171/00 , F04C18/02 , F04C29/00 , F04C29/02 , F04C29/12 , F25B31/00 , F04C23/00 , F04C27/00 , F04C28/26
Abstract: A compressor uses a refrigerant containing R1123 (1,1,2-trifluoroethylene) as a working fluid, and uses a polyol ester oil as a compressor lubricating oil. In addition, a fixed scroll and a revolving scroll each having a spiral lap rising from an end plate, and a compression chamber which is formed by meshing the fixed scroll and the revolving scroll, are provided. In addition, a discharge hole which is provided at a center position of the end plate of the fixed scroll, and is open to a discharge chamber, a bypass hole which is provided in the end plate of the fixed scroll, and communicates with the compression chamber and the discharge chamber at a timing different from a timing at which the compression chamber communicates with the discharge hole, and a check valve which is provided in the bypass hole, and allows a flow from the compression chamber side to the discharge chamber side.
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公开(公告)号：US10151514B2
公开(公告)日：2018-12-11
申请号：US15309567
申请日：2015-04-27
Inventor： Akira Fujitaka , Fuminori Sakima , Yoshikazu Kawabe , Atsushi Sakuda , Hiroaki Nakai , Shigehiro Sato , Kenji Takaichi
IPC: F25B1/04 , C09K5/04 , C10M171/00 , F04C18/02 , F04C29/00 , F04C29/02 , F04C29/12 , F25B31/00 , F04C23/00 , F04C27/00 , F04C28/26
Abstract: A compressor uses a refrigerant containing R1123 (1,1,2-trifluoroethylene) as a working fluid, and uses a polyol ester oil as a compressor lubricating oil. In addition, a fixed scroll and a revolving scroll each having a spiral lap rising from an end plate, and a compression chamber which is formed by meshing the fixed scroll and the revolving scroll, are provided. In addition, a discharge hole which is provided at a center position of the end plate of the fixed scroll, and is open to a discharge chamber, a bypass hole which is provided in the end plate of the fixed scroll, and communicates with the compression chamber and the discharge chamber at a timing different from a timing at which the compression chamber communicates with the discharge hole, and a check valve which is provided in the bypass hole, and allows a flow from the compression chamber side to the discharge chamber side.
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