Patents by Inventor Tetsuya Kakiuchi
Tetsuya Kakiuchi 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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Patent number: 10801671Abstract: A gas supply system (2) includes a compressor unit (21), an accumulator unit (23), a pre-cooling system (24) and a housing (4). In the gas supply system (2), the compressor unit (21) is vertically arranged and the pre-cooling system (24) is arranged above the accumulator unit (23) in the housing (4). The compressor unit (21) and the accumulator unit (23) are covered by one rectangular parallelepiped housing (4).Type: GrantFiled: May 30, 2018Date of Patent: October 13, 2020Assignee: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Kenji Nagura, Tetsuya Kakiuchi, Takashi Okuno, Koji Noishiki, Akitoshi Fujisawa, Shinichi Miura
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Patent number: 10634283Abstract: A gas supply system—includes a compressor unit, an accumulator unit, a pre-cooling system and a housing. In the gas supply system, the compressor unit is vertically arranged and the pre-cooling system is arranged above the accumulator unit in the housing. The compressor unit and the accumulator unit are covered by one rectangular parallelepiped housing.Type: GrantFiled: January 29, 2015Date of Patent: April 28, 2020Assignee: Kobe Steel, Ltd.Inventors: Kenji Nagura, Tetsuya Kakiuchi, Takashi Okuno, Koji Noishiki, Akitoshi Fujisawa, Shinichi Miura
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Patent number: 10626754Abstract: A compression device is equipped with a compressor (102) and a heat energy recovery unit (200) that recovers heat energy from a compressed gas. The heat energy recovery unit (200) is equipped with: a heat exchanger (202) that has an inflow port (202a), and that heats an operating medium by means of the heat from the compressed gas; an expansion device (210); a power recovery unit (212); a condenser (214); and a pump (222). The heat exchanger (202) is arranged closer to the compressor (102) than the expansion device (210), and is oriented such that the inflow port (202a) faces the compressor (102).Type: GrantFiled: July 6, 2015Date of Patent: April 21, 2020Assignee: Kobe Steel, Ltd.Inventors: Koichiro Hashimoto, Kazumasa Nishimura, Shigeto Adachi, Yutaka Narukawa, Haruyuki Matsuda, Tetsuya Kakiuchi, Noboru Tsuboi, Kazunori Fukuhara
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Patent number: 10234183Abstract: A compressing device of the present invention comprises a compressor, a heat exchanger, an expander, a power recovery unit, a condenser, a pump, a bypass flow passage for bypassing the expander, and a bypass valve. When a bypass condition for allowing a working medium to circulate through the bypass flow passage is satisfied, the bypass valve is caused to be opened, thereby allowing the working medium to circulate between the heat exchanger and the condenser through the bypass flow passage. As a result, a compressed gas discharged from the compressor is cooled by the working medium in the heat exchanger. This configuration makes it possible to cool the compressed gas by the working medium in the heat exchanger regardless of operation conditions of the expander.Type: GrantFiled: July 8, 2015Date of Patent: March 19, 2019Assignee: Kobe Steel, Ltd.Inventors: Koichiro Hashimoto, Kazumasa Nishimura, Shigeto Adachi, Yutaka Narukawa, Haruyuki Matsuda, Tetsuya Kakiuchi, Noboru Tsuboi, Kazunori Fukuhara
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Publication number: 20180274726Abstract: A gas supply system (2) includes a compressor unit (21), an accumulator unit (23), a pre-cooling system (24) and a housing (4). In the gas supply system (2), the compressor unit (21) is vertically arranged and the pre-cooling system (24) is arranged above the accumulator unit (23) in the housing (4). The compressor unit (21) and the accumulator unit (23) are covered by one rectangular parallelepiped housing (4).Type: ApplicationFiled: May 30, 2018Publication date: September 27, 2018Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Kenji NAGURA, Tetsuya KAKIUCHI, Takashi OKUNO, Koji NOISHIKI, Akitoshi FUJISAWA, Shinichi MIURA
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Patent number: 9771835Abstract: A heat energy recovery device 1, which recovers heat energy of a heat medium by utilizing a Rankine cycle of a working medium, comprises a first heater 2, a second heater 3, an expander 4, an oil separation unit 12, a condenser 6, a working medium pump 7, and an oil-leading passage 10. When the height of a liquid level in the oil separation unit 12 is less than a lower limit value, a control unit 16 first performs a speed reduction control of the working medium pump 7 to reduce an inflow rate of a working medium into the second heater 3, and after a fixed period of time, performs an opening control for opening an on-off unit 11. By the opening of the on-off valve 11, oil L1 in the second heater 3 is led out to the oil separation unit 12 through the oil-leading passage 10.Type: GrantFiled: March 26, 2015Date of Patent: September 26, 2017Assignee: Kobe Steel, Ltd.Inventors: Shigeto Adachi, Yutaka Narukawa, Noboru Tsuboi, Koichiro Hashimoto, Haruyuki Matsuda, Kazumasa Nishimura, Tetsuya Kakiuchi, Kazunori Fukuhara
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Patent number: 9765652Abstract: An energy recovery device includes a plurality of heat exchangers connected in parallel with each other into which a plurality of heat sources flow, an expander for expanding a working medium, a dynamic power recovery unit, a condenser, a pump for sending the working medium which has flown out from the condenser to the plurality of heat exchangers, and a regulator for regulating inflow rates of the working medium flowing into the plurality of heat exchangers. The regulator regulates the inflow rates of the liquid phase working medium flowing into the plurality of respective heat exchangers such that a difference of temperatures or a difference of degrees of superheat of the gas phase working medium which has flown out from the plurality of respective heat exchangers falls within a certain range. Thereby, heat energy can be efficiently recovered from the plurality of heat sources having temperatures different from each other.Type: GrantFiled: July 8, 2015Date of Patent: September 19, 2017Assignee: Kobe Steel, Ltd.Inventors: Koichiro Hashimoto, Haruyuki Matsuda, Kazumasa Nishimura, Shigeto Adachi, Yutaka Narukawa, Tetsuya Kakiuchi, Kazunori Fukuhara
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Publication number: 20170159660Abstract: A compression device is equipped with a compressor (102) and a heat energy recovery unit (200) that recovers heat energy from a compressed gas. The heat energy recovery unit (200) is equipped with: a heat exchanger (202) that has an inflow port (202a), and that heats an operating medium by means of the heat from the compressed gas; an expansion device (210); a power recovery unit (212); a condenser (214); and a pump (222). The heat exchanger (202) is arranged closer to the compressor (102) than the expansion device (210), and is oriented such that the inflow port (202a) faces the compressor (102).Type: ApplicationFiled: July 6, 2015Publication date: June 8, 2017Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Koichiro HASHIMOTO, Kazumasa NISHIMURA, Shigeto ADACHI, Yutaka NARUKAWA, Haruyuki MATSUDA, Tetsuya KAKIUCHI, Noboru TSUBOI, Kazunori FUKUHARA
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Publication number: 20160348840Abstract: A gas supply system—includes a compressor unit, an accumulator unit, a pre-cooling system and a housing. In the gas supply system, the compressor unit is vertically arranged and the pre-cooling system is arranged above the accumulator unit in the housing. The compressor unit and the accumulator unit are covered by one rectangular parallelepiped housing.Type: ApplicationFiled: January 29, 2015Publication date: December 1, 2016Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Kenji NAGURA, Tetsuya KAKIUCHI, Takashi OKUNO, Koji NOISHIKI, Akitoshi FUJISAWA, Shinichi MIURA
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Publication number: 20160076405Abstract: An energy recovery device includes a plurality of heat exchangers connected in parallel with each other into which a plurality of heat sources flow, an expander for expanding a working medium, a dynamic power recovery unit, a condenser, a pump for sending the working medium which has flown out from the condenser to the plurality of heat exchangers, and a regulator for regulating inflow rates of the working medium flowing into the plurality of heat exchangers. The regulator regulates the inflow rates of the liquid phase working medium flowing into the plurality of respective heat exchangers such that a difference of temperatures or a difference of degrees of superheat of the gas phase working medium which has flown out from the plurality of respective heat exchangers falls within a certain range. Thereby, heat energy can be efficiently recovered from the plurality of heat sources having temperatures different from each other.Type: ApplicationFiled: July 8, 2015Publication date: March 17, 2016Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Koichiro HASHIMOTO, Haruyuki Matsuda, Kazumasa Nishimura, Shigeto Adachi, Yutaka Narukawa, Tetsuya Kakiuchi, Kazunori Fukuhara
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Publication number: 20160069600Abstract: A compressing device of the present invention comprises a compressor, a heat exchanger, an expander, a power recovery unit, a condenser, a pump, a bypass flow passage for bypassing the expander, and a bypass valve. When a bypass condition for allowing a working medium to circulate through the bypass flow passage is satisfied, the bypass valve is caused to be opened, thereby allowing the working medium to circulate between the heat exchanger and the condenser through the bypass flow passage. As a result, a compressed gas discharged from the compressor is cooled by the working medium in the heat exchanger. This configuration makes it possible to cool the compressed gas by the working medium in the heat exchanger regardless of operation conditions of the expander.Type: ApplicationFiled: July 8, 2015Publication date: March 10, 2016Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Koichiro HASHIMOTO, Kazumasa NISHIMURA, Shigeto ADACHI, Yutaka NARUKAWA, Haruyuki MATSUDA, Tetsuya KAKIUCHI, Noboru TSUBOI, Kazunori FUKUHARA
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Publication number: 20150337690Abstract: A heat energy recovery device 1, which recovers heat energy of a heat medium by utilizing a Rankine cycle of a working medium, comprises a first heater 2, a second heater 3, an expander 4, an oil separation unit 12, a condenser 6, a working medium pump 7, and an oil-leading passage 10. When the height of a liquid level in the oil separation unit 12 is less than a lower limit value, a control unit 16 first performs a speed reduction control of the working medium pump 7 to reduce an inflow rate of a working medium into the second heater 3, and after a fixed period of time, performs an opening control for opening an on-off unit 11. By the opening of the on-off valve 11, oil L1 in the second heater 3 is led out to the oil separation unit 12 through the oil-leading passage 10.Type: ApplicationFiled: March 26, 2015Publication date: November 26, 2015Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Shigeto ADACHI, Yutaka NARUKAWA, Noboru TSUBOI, Koichiro HASHIMOTO, Haruyuki MATSUDA, Kazumasa NISHIMURA, Tetsuya KAKIUCHI, Kazunori FUKUHARA
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Patent number: 8512019Abstract: In a screw compression apparatus in which shaft sealing members (13, 14) isolate a bearing space (7, 8) from a rotor chamber (5) and a lubricating fluid separating collector (3) separates the rotor lubricating fluid from the target gas discharged by the screw compressor (2), rotor lubricating fluid separated by the lubricating fluid separating collector (3) is introduced into the rotor chamber (5) via a rotor lubricating flow channel (25), and a bearing lubricating system (17) supplies a bearing lubricating fluid to the bearing space (7, 8). The bearing lubricating fluid flowing out from the bearing space (7, 8) is cooled and returned to the bearing space (7,8). A part of the target gas may be supplied to the shaft sealing members (13, 14) at a location between carbon rings of the shaft sealing members.Type: GrantFiled: June 3, 2009Date of Patent: August 20, 2013Assignee: Kobe Steel, Ltd.Inventors: Tetsuya Kakiuchi, Yasushi Amano
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Publication number: 20110076174Abstract: A screw compression apparatus (1) in which the bearing lifespan is unaffected by the properties of the target gas being compressed comprises: a screw compressor (2) in which a rotor shaft of a screw rotor (6) that is rotatably housed to compress a target gas together with a rotor lubricating fluid in a male/female interlocking arrangement in a rotor chamber (5) formed in a housing (4) is held by bearings (10, 11) arranged in bearing spaces (7, 8) formed in a housing (4) adjacently to a rotor chamber (5), and which includes shaft sealing members (13, 14) that isolate the bearing space (7, 8) from the rotor chamber (5); a lubricating fluid separating collector (3) that separates the rotor lubricating fluid from the target gas discharged by the screw compressor (2); a rotor lubricating flow channel (25) through which the rotor lubricating fluid separated by the lubricating fluid separating collector (3) is introduced into the rotor chamber (5); and a bearing lubricating system (17) for supplying a bearing lubricType: ApplicationFiled: June 3, 2009Publication date: March 31, 2011Applicant: Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel Ltd)Inventors: Tetsuya Kakiuchi, Yasushi Amano
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Patent number: 5135374Abstract: An oil flooded screw compressor wherein a thrust force acting upon a bearing is controlled within a fixed range to prevent possible damage to the bearing. The oil-cooled screw compressor comprises a pair of meshing screw rotors, a balance piston mounted for axial movement in parallel to axes of the screw rotors for causing, when operated, a force to act upon one of the screw rotors in a direction from the sucking side to the discharging side, and a slide valve for adjusting the volume of the screw compressor. A flow path of pressure fluid is provided for operating the balance piston and and is controlled such that it is opened when the slide valve is positioned on the full load side with respect to a preset position, but is closed when the slide valve is positioned at any other position.Type: GrantFiled: March 12, 1991Date of Patent: August 4, 1992Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Shoji Yoshimura, Tetsuya Kakiuchi