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公开(公告)号：US11994142B2
公开(公告)日：2024-05-28
申请号：US17714145
申请日：2022-04-06
发明人： Hirotaka Tomioka , Yuuki Kirikuri
IPC分类号： F04D29/054 , F04D19/00
CPC分类号： F04D29/054 , F04D19/002
摘要： A fan includes: a shaft including an outer peripheral surface that includes a first circular-arc portion, and a first flat portion; and a boss portion including a fitting hole with an inner peripheral surface that includes a second circular-arc portion, and a second flat portion. The second circular-arc portion corresponds to the first circular-arc portion. The second flat portion corresponds to the first flat portion. One or both of the first flat portion and the second flat portion includes a notch in an end portion in a width direction of the one or both of the first flat portion and the second flat portion.
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公开(公告)号：US11994127B2
公开(公告)日：2024-05-28
申请号：US17280078
申请日：2019-09-25
发明人： Daisuke Okamoto , Naoto Tomioka , Mikio Kajiwara , Yohei Nishide , Yousuke Ohnishi , Masaaki Adachi
IPC分类号： F04C23/02 , F04C18/356 , F04C23/00 , F04C29/02 , F04C29/04 , F25B1/04 , F25B1/10 , F25B13/00 , F25B31/00
CPC分类号： F04C23/02 , F04C18/356 , F04C18/3564 , F04C23/00 , F04C23/001 , F04C23/008 , F04C29/02 , F04C29/04 , F25B1/04 , F25B1/10 , F25B13/00 , F25B31/004 , F04C2210/222 , F04C2240/30 , F04C2240/804 , F25B2400/04 , F25B2400/072 , F25B2400/13 , F25B2400/23 , F25B2700/21152
摘要： A multistage compression system uses refrigerant and oil. The multistage compression system includes a low-stage compressor that compresses the refrigerant, a high-stage compressor that further compresses the refrigerant compressed by the low-stage compressor, and an oil return pipe that returns the oil discharged by the high-stage compressor or the oil in the high-stage compressor to the low-stage compressor. The low-stage compressor has a rotary compression part that compresses the refrigerant, a motor that drives the compression part, and a container housing the compression part and the motor. The motor is disposed above the compression part. The oil return pipe is connected to a space below the motor inside the container.
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公开(公告)号：US11990950B2
公开(公告)日：2024-05-21
申请号：US18220146
申请日：2023-07-10
发明人： Kosuke Hotta , Shin Higashiyama
摘要： An air-conditioning apparatus includes a first transmission channel, a plurality of second transmission channels different from the first transmission channel, a controller connected to the first transmission channel and not connected to the second transmission channels, a plurality of air-conditioning indoor units connected to the second transmission channels and not connected to the first transmission channel, and a plurality of air-conditioning outdoor units. The plurality of air-conditioning outdoor units electrically connect the first transmission channel and the second transmission channels, and do not transmit a short-circuit state occurring in one of the first transmission channel and the second transmission channels to a transmission channel other than the one of the first transmission channel and the second transmission channels, thereby enabling communication between devices connected to the transmission channel other than the one.
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54.发明公开公开(公告)号：US20240150505A1
公开(公告)日：2024-05-09
申请号：US18397595
申请日：2023-12-27
发明人： Takahiro TAIRA , Kazuhiro Mishima , Takayuki Tanaka , Takeki Kusunoki , Masayoshi Miyamoto , Tomoki Minamiyama , Mitsuo Tsukamoto , Kenji Ichikawa , Takuya Yamabe , Hirotoshi Yoshida , Taketo Kato , Taku Yamanaka
IPC分类号： C08F214/26 , B29C43/00 , C08F2/18 , C08F6/24 , C08F8/22
CPC分类号： C08F214/262 , B29C43/003 , B29C43/006 , C08F2/18 , C08F6/24 , C08F8/22 , B29K2027/18
摘要： A method for producing a polytetrafluoroethylene powder, which includes subjecting tetrafluoroethylene to suspension polymerization in an aqueous medium to prepare a suspension-polymerized particle of non melt-processible polytetrafluoroethylene, drying the suspension-polymerized particle to prepare a dry particle, subjecting the dry particle to fluorine radical treatment to prepare a fluorine radical-treated particle, and crushing the fluorine radical-treated particle to produce a polytetrafluoroethylene powder. Also disclosed is a polytetrafluoroethylene formed article obtained by forming the polytetrafluoroethylene powder, as well as a polytetrafluoroethylene compression-molded article obtained by compression molding the polytetrafluoroethylene powder.
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公开(公告)号：US20240149196A1
公开(公告)日：2024-05-09
申请号：US18411875
申请日：2024-01-12
发明人： Satoshi HARA , Hiroaki SHINTANI , Yoshitaka ITO
CPC分类号： B01D39/1623 , D04H3/016 , B01D46/023
摘要： A method of producing an air filter includes a first step of preparing a tow band and a second step of obtaining a filter medium layer that includes first fibers obtained by applying tension to the tow band to spread the tow band and the first fibers having an average fiber diameter of 5 μm or more and 50 μm or less and second fibers disposed in gaps between the first fibers and having an average fiber diameter of 30 nm or more and 1 μm or less. The second fibers are drawn out from the particulate resin by drawing the particulate resin, and the particulate resin is drawn by separating the first fibers from each other so that a gap is formed between the first fibers during the spreading of the tow band.
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公开(公告)号：US11979097B2
公开(公告)日：2024-05-07
申请号：US17378979
申请日：2021-07-19
发明人： Ryou Matsuyama , Masaki Kono , Tomoisa Taniguchi
IPC分类号： H02M1/32 , G05F1/571 , H02M1/00 , H02M5/453 , H02M5/458 , H02M7/04 , H02M7/217 , H02M7/5387 , H03K17/081
CPC分类号： H02M7/53871 , H02M1/0006 , H02M1/32 , H02M7/05 , H02M7/2173 , H03K17/08104 , G05F1/571 , H02M5/453 , H02M5/458
摘要： A converter circuit converts AC electric power into DC power. An inverter circuit converts the DC power into AC power. A capacitor is connected in parallel to each of the converter circuit and the inverter circuit between these circuits. The capacitor allows variation of an output voltage from the converter circuit, and absorbs variation of an output voltage from the inverter circuit due to a switching operation. An overvoltage protection circuit includes a resistor and a semiconductor element connected in series to each other. The overvoltage protection circuit is connected in parallel to the capacitor to protect the inverter circuit from an overvoltage. First and second control units respectively control the inverter circuit and the overvoltage protection circuit.
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公开(公告)号：US11976859B2
公开(公告)日：2024-05-07
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 , F25B9/006 , F25B9/008 , F25B2400/08 , F25B2400/23 , F25B2600/2501
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：US20240141582A1
公开(公告)日：2024-05-02
申请号：US18539559
申请日：2023-12-14
发明人： Akane MATSUMOTO , Ryo AKUTA , Yuko SHIOTANI , Mayumi IIDA , Marina AIHARA , Yukinori TOGO , Tatsunori SAKAMAKI , Masahiro HIGASHI , Yosuke KISHIKAWA
IPC分类号： D06M13/352 , B65D85/00 , D06M13/402 , D21H21/14
CPC分类号： D06M13/352 , B65D85/70 , D06M13/402 , D21H21/14
摘要： An oil-resistant agent containing a modified natural product which is a bio-based compound having at least one carboxyl group and in which a hydroxyl group of a carboxyl group is substituted with an R group, or a carboxyl group is substituted with an Ra group.
R group: —X—R1 or —X-D-X′—R1.
Ra group:
wherein X is a direct bond, —O—, —NR11—, or —S—, and R1 is a hydrocarbon group having 1-40 carbon atoms, or a polysiloxane, D is an alkylene group having 1-10 carbon atoms, X′ is —C(═O)—O—, —O—(═O)—, —C(═O)—NR12—, or —NR12—C(═O)— (where, R11 and R12 are each hydrogen or an alkyl group having 1-40 carbon atoms). Also disclosed is a textile product, an oil-resistant paper, a food packaging material or a food container each including the oil-resistant agent, as well as a method of treating paper with the oil-resistant agent.-
公开(公告)号：US20240141155A1
公开(公告)日：2024-05-02
申请号：US18396125
申请日：2023-12-26
发明人： Yoshinori NANBA , Kenji ICHIKAWA , Taketo KATO , Taku YAMANAKA
IPC分类号： C08L27/18 , C08F114/26
CPC分类号： C08L27/18 , C08F114/26 , C08L2201/00 , C08L2203/30
摘要： Provided is a method for producing a fluoropolymer composition, comprising bringing a fluoropolymer raw material into contact with an oxidizing agent, wherein the fluoropolymer raw material is obtained by polymerizing a fluoromonomer in an aqueous medium in the presence of a polymer (I) containing a polymerization unit (I) derived from a monomer (I) represented by the general formula (I).
CX1X3═CX2R(—CZ1Z2-A0)m (I)
wherein X1 and X3 are each independently F, Cl, H, or CF3; X2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A0 is an anionic group; R is a linking group; Z1 and Z2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group; and m is an integer of 1 or more.-
公开(公告)号：US11971037B2
公开(公告)日：2024-04-30
申请号：US17883918
申请日：2022-08-09
发明人： Eiji Kumakura , Kazuhiro Furusho
CPC分类号： F04C29/04 , F04C18/0215 , F04C29/0057 , F04C29/023 , F04C29/028 , F04C2210/26 , F04C2240/40 , F04C2240/50 , F04C2240/60 , F04C2240/603
摘要： In a compressor compressing a refrigerant including hydrocarbon fluoride prone to disproportionate, provided, on a contact portion of the drive shaft and the bearing portion, is an elastic bearing portion as a heat generation suppression portion suppressing excessive heat generation due to line contact of an end edge portion of the bearing portion with the drive shaft during rotation of the drive shaft.
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