Patents by Inventor Isao Kawabe
Isao Kawabe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220390153Abstract: A rotary compressor according to an embodiment includes a plurality of eccentric parts, a first balancer, and a second balancer. The plurality of eccentric parts include a first eccentric part, a second eccentric part, and a third eccentric part disposed to be aligned from one side to the other side. The second balancer is disposed on the other side of the first balancer. Angles between a direction of eccentricity of the first balancer and directions of eccentricity of the plurality of eccentric parts are configured to increase in an order of the third eccentric part, the second eccentric part, and the first eccentric part. Angles between a direction of eccentricity of the second balancer and directions of eccentricity of the plurality of eccentric parts are configured to increase in an order of the first eccentric part, the second eccentric part, and the third eccentric part.Type: ApplicationFiled: August 11, 2022Publication date: December 8, 2022Applicant: Toshiba Carrier CorporationInventors: Takuya HIRAYAMA, Isao KAWABE, Taishi NAGAHATA
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Patent number: 10180271Abstract: The multiple cylinder rotary compressor includes a compressor body including a hermetic case, the hermetic case housing inside a rotating shaft, an electric motor section, and a compression mechanism body. The compression mechanism body includes at least three compression mechanism sections which stack with each other, partition plates between the corresponding adjacent compression mechanism sections, and a primary bearing and a secondary bearing supporting the rotating shaft on both end sides of the compression mechanism body. The compression mechanism sections include a cylinder forming inside a cylinder chamber, an eccentric section provided to the rotating shaft, disposed in the cylinder chamber, a roller fitted to the eccentric section, rotating eccentrically within the cylinder chamber, and a blade dividing the inside of the cylinder chamber into two. At least one partition plate constitutes a partition plate bearing supporting the rotating shaft.Type: GrantFiled: September 25, 2015Date of Patent: January 15, 2019Assignee: TOSHIBA CARRIER CORPORATIONInventors: Takuya Hirayama, Isao Kawabe
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Patent number: 9664192Abstract: In one embodiment, a compression mechanism unit of a rotary compressor includes a cylinder includes a cylinder chamber, a roller in the chamber, first and second vanes which come into contact with the roller and partition the chamber into a compression side and an absorption side, and a bias member which biases the vanes. On both end sides of a posterior end portion of the first vane, first vane side attachment portions having an equal dimension in the axial direction are provided. On both end sides of the second vane along the axial direction of the axis, second vane side attachment portions having an equal dimension in the axial direction are provided. The vanes are attached to the bias member via the attachment portions.Type: GrantFiled: June 24, 2015Date of Patent: May 30, 2017Assignee: TOSHIBA CARRIER CORPORATIONInventors: Toshimasa Aoki, Hisataka Kato, Masahiro Hatayama, Isao Kawabe, Keiichi Hasegawa
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Publication number: 20160018136Abstract: The multiple cylinder rotary compressor includes: a compressor body including a hermetic case, the hermetic case housing inside a rotating shaft, an electric motor section, and a compression mechanism body; the compression mechanism body including: at least three compression mechanism sections arranged so as to stack with each other in an axial direction of the rotating shaft, partition plates each of which disposed between the corresponding adjacent compression mechanism sections, and a primary bearing and a secondary bearing supporting the rotating shaft on both end sides of the compression mechanism body along the axial direction of the rotating shaft; and the compression mechanism sections each of which including: a cylinder forming inside a cylinder chamber, an eccentric section provided to the rotating shaft, disposed in the cylinder chamber, a roller fitted to the eccentric section, rotating eccentrically within the cylinder chamber, and a blade dividing the inside of the cylinder chamber into two.Type: ApplicationFiled: September 25, 2015Publication date: January 21, 2016Inventors: Takuya HIRAYAMA, Isao KAWABE
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Publication number: 20150292506Abstract: In one embodiment, a compression mechanism unit of a rotary compressor includes a cylinder includes a cylinder chamber, a roller in the chamber, first and second vanes which come into contact with the roller and partition the chamber into a compression side and an absorption side, and a bias member which biases the vanes. On both end sides of a posterior end portion of the first vane, first vane side attachment portions having an equal dimension in the axial direction are provided. On both end sides of the second vane along the axial direction of the axis, second vane side attachment portions having an equal dimension in the axial direction are provided. The vanes are attached to the bias member via the attachment portions.Type: ApplicationFiled: June 24, 2015Publication date: October 15, 2015Applicant: TOSHIBA CARRIER CORPORATIONInventors: Toshimasa AOKI, Hisataka KATO, Masahiro HATAYAMA, Isao KAWABE, Keiichi HASEGAWA
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Patent number: 7841838Abstract: A rotary closed type compressor is configured such that an inside of a case becomes high pressure, and the rotary closed type compressor comprises a first cylinder and a second cylinder having cylinder chambers in which eccentric rollers are housed, respectively, vanes which divide the cylinder chamber into two sections, respectively, and vane chambers in which back-face side end portions of the vanes are housed, respectively. The vane on the first cylinder side is pressed and biased by a spring member provided in the vane chamber, and the vane on the second cylinder side is pressed and biased according to pressure difference between case internal pressure introduced to the vane chamber and suction pressure or discharge pressure introduced to the cylinder chamber.Type: GrantFiled: September 7, 2005Date of Patent: November 30, 2010Assignee: Toshiba Carrier CorporationInventors: Isao Kawabe, Kazuo Mochizuki, Shoichiro Kitaichi, Koji Hirano, Izumi Onoda, Kazu Takashima
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Patent number: 7290994Abstract: A vane of a first cylinder is compressed and urged by a spring member. A vane of a second cylinder is compressed and urged corresponding to a differential pressure between an intra-casing pressure guided into a vane chamber and a suction pressure or discharge pressure guided to the cylinder chamber. A pressure shift mechanism which guides the suction pressure or discharge pressure has a branch pipe having a one end connected to a high pressure side of the refrigeration cycle, an other end connected to a suction pipe, and a first on-off valve in a midway portion, and a second on-off valve or a check valve which is provided in the suction pipe on a side upstream of a connection portion of the branch pipe and on a side downstream of an oil returning opening in an accumulator.Type: GrantFiled: December 14, 2005Date of Patent: November 6, 2007Assignee: Toshiba Carrier CorporationInventors: Shoichiro Kitaichi, Norihisa Watanabe, Takeshi Tominaga, Kazu Takashima, Isao Kawabe, Masayuki Suzuki
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Publication number: 20060093494Abstract: A vane of a first cylinder is compressed and urged by a spring member. A vane of a second cylinder is compressed and urged corresponding to a differential pressure between an intra-casing pressure guided into a vane chamber and a suction pressure or discharge pressure guided to the cylinder chamber. A pressure shift mechanism which guides the suction pressure or discharge pressure has a branch pipe having a one end connected to a high pressure side of the refrigeration cycle, an other end connected to a suction pipe, and a first on-off valve in a midway portion, and a second on-off valve or a check valve which is provided in the suction pipe on a side upstream of a connection portion of the branch pipe and on a side downstream of an oil returning opening in an accumulator.Type: ApplicationFiled: December 14, 2005Publication date: May 4, 2006Applicant: TOSHIBA Carrier CorporationInventors: Shoichiro Kitaichi, Norihisa Watanabe, Takeshi Tominaga, Kazu Takashima, Isao Kawabe, Masayuki Suzuki
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Publication number: 20060002809Abstract: A rotary closed type compressor is configured such that an inside of a case becomes high pressure, and the rotary closed type compressor comprises a first cylinder and a second cylinder having cylinder chambers in which eccentric rollers are housed, respectively, vanes which divide the cylinder chamber into two sections, respectively, and vane chambers in which back-face side end portions of the vanes are housed, respectively. The vane on the first cylinder side is pressed and biased by a spring member provided in the vane chamber, and the vane on the second cylinder side is pressed and biased according to pressure difference between case internal pressure introduced to the vane chamber and suction pressure or discharge pressure introduced to the cylinder chamber.Type: ApplicationFiled: September 7, 2005Publication date: January 5, 2006Inventors: Isao Kawabe, Kazuo Mochizuki, Shoichiro Kitaichi, Koji Hirano, Izumi Onoda, Kazu Takashima
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Patent number: 6623253Abstract: A compressor comprises a sealed case to which a suction pipe and a discharge pipe are connected, a compression mechanism unit provided within the sealed case, and a motor unit provided within the sealed case, the motor unit comprising a stator and a rotor for driving the compression mechanism unit, a gas passages for passing a gas discharged from the compression mechanism unit are formed in the motor unit, and a ratio of a total area of slot gap portions defined between slots of a stator core and coils in a stator of the motor unit to an entire area of the gas passages is set at 0.3 or more.Type: GrantFiled: February 6, 2002Date of Patent: September 23, 2003Assignee: Toshiba Carrier CorporationInventors: Izumi Onoda, Isao Kawabe, Hisataka Kato
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Patent number: 5800150Abstract: A hermetic compressor which compresses compressed gas, comprising a sealing container, a compression mechanism which is housed in the sealing container and introduces the compressed gas into its inside to compress the compressed gas, and a frame for fixedly supporting the compression mechanism. A portion where the compression mechanism and the frame are abutted against each other, is provided with a solid propagation wave damping portion which damps a vibratory propagation by suddenly changing a cross section of a abutting portion.Type: GrantFiled: November 26, 1996Date of Patent: September 1, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Izumi Onoda, Yasushi Adachi, Isao Kawabe, Kazu Takashima
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Patent number: 5211550Abstract: A thrust ring plate of a scroll type compressing apparatus supports the movable scroll member of the apparatus and has flat and parallel circumferential opposite surfaces extending over an Oldham ring in the bearing frame to bear a thrust pressure occurred by the compressing action of the movable scroll member and the stationary scroll member thereby preventing the movable scroll member from the fluctuating movement in a thrust direction perpendicular to the end plate of the movable scroll member and ensuring a smooth orbital movement of the movable scroll member.Type: GrantFiled: January 21, 1992Date of Patent: May 18, 1993Assignee: Kabushiki Kaisha ToshibaInventor: Isao Kawabe