Patents by Inventor Hisayuki Orita
Hisayuki Orita 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: 10941724Abstract: An object of the present invention is to provide an engine system control device capable of stabilizing a combustion state, while improving fuel economy by performing intake air heating. According to the present invention, there is provided an engine system control device which controls an engine system including an engine configured to combust air-fuel mixture, an intake air path configured to take air to the engine, and an intake air heating mechanism configured to heat the intake air, wherein a heating amount of the intake air is controlled depending on a combustion speed of the air-fuel mixture.Type: GrantFiled: August 8, 2016Date of Patent: March 9, 2021Assignee: Hitachi Automotive Systems, Ltd.Inventors: Hisayuki Orita, Masayuki Saruwatari, Kazuhiro Oryoji, Motoyuki Abe
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Publication number: 20200240340Abstract: An object of the present invention is to provide an engine system control device capable of stabilizing a combustion state, while improving fuel economy by performing intake air heating. According to the present invention, there is provided an engine system control device which controls an engine system including an engine configured to combust air-fuel mixture, an intake air path configured to take air to the engine, and an intake air heating mechanism configured to heat the intake air, wherein a heating amount of the intake air is controlled depending on a combustion speed of the air-fuel mixture.Type: ApplicationFiled: August 8, 2016Publication date: July 30, 2020Inventors: Hisayuki ORITA, Masayuki SARUWATARI, Kazuhiro ORYOJI, Motoyuki ABE
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Publication number: 20170306825Abstract: Provided is a CO2 recovery device of an internal combustion engine capable of efficiently recovering CO2 emitted from an internal combustion engine or CO2 in the air, and of efficiently synthesizing methane using CO2. A CO2 recovery device of an internal combustion engine includes a CO2 capturing material disposed at a through channel of gas including CO2 to capture CO2 in the gas, and methanation catalyst to let CO2 desorbed from the CO2 capturing material react with H2 obtained from a H2 supply source to generate methane. The CO2 recovery device has a function to raise temperature of the CO2 capturing material using heat generated from the internal combustion engine to desorb CO2.Type: ApplicationFiled: October 7, 2015Publication date: October 26, 2017Applicant: HITACHI, LTD.Inventors: Masato KANEEDA, Hisayuki ORITA, Motoyuki ABE, Yoshihiro SUKEGAWA, Kazuhiro ORYOJI, Yuuki OKUDA
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Patent number: 9399939Abstract: A combustion exhaust gas treatment system comprising: a heat exchanger (A) for recovering heat contained in the combustion exhaust gas into heat medium, an absorption column for obtaining CO2 removed gas by absorbing CO2 in the combustion exhaust gas into absorbent, a heat exchanger (B) for applying heat recovered by heat medium to the CO2 absorbed absorbent, a desorption column for desorbing the absorbent by removing CO2 from the CO2 absorbed absorbent, a flash tank for flash vaporizing the desorbed absorbent and a heat exchanger (E) for transferring heat from the desorbed absorbent to the CO2 absorbed absorbent, wherein the CO2 absorbed absorbent can be supplied from the absorption column to the desorption column via the heat exchanger (E) and the heat exchanger (B) in this order, and the desorbed absorbent can be supplied from the desorption column to the absorption column via the flash tank and the heat exchanger (E) in this order.Type: GrantFiled: June 19, 2012Date of Patent: July 26, 2016Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Jun Shimamura, Toshio Katsube, Kouichi Yokoyama, Yoshihiro Kidera, Nobuyoshi Mishima, Hisayuki Orita
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Patent number: 9375673Abstract: A CO2 separation unit for recovering CO2 from a CO2-containing gas by using a solid CO2 capturing material, in which the amount of used steam is decreased: the unit comprising a capturing material container, a first pipeline for allowing the CO2-containing gas to flow therethrough into the capturing material container, a second pipeline for allowing a gas from which CO2 has been removed to be discharged therethrough, a third pipeline for introducing a steam-containing gas to the inside of the capturing material container, a fourth pipeline for allowing a desorbed CO2-containing gas to be discharged therethrough, wherein the unit further includes a compressor for compressing steam, a fifth pipeline for connecting the capturing material container with a suction port of the compressor, and a sixth pipeline for connecting a discharge port of the compressor with the third pipeline.Type: GrantFiled: January 15, 2013Date of Patent: June 28, 2016Assignee: Hitachi, Ltd.Inventors: Kohei Yoshikawa, Hiroki Sato, Masato Kaneeda, Shuichi Kanno, Hisayuki Orita
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Patent number: 8961170Abstract: A pulverized coal thermal power generation system that significantly reduces the amount of NOx emissions from a boiler and does not require a denitration unit is provided. When a denitration unit is not used, performance to remove mercury from a boiler waste gas is reduced. A waste gas purification system for a pulverized coal boiler, that compensates for this is provided. A pulverized coal boiler having a furnace for burning pulverized coal, burners for supplying pulverized coal and air used for combustion into the furnace so as to burn the pulverized coal in an insufficient air state and after-air ports provided on the downstream side of the burners for supplying air used for perfect combustion characterized in that, an air ratio in the furnace is 1.05 to 1.14, and the residence time of a combustion gas from the burner disposed on the uppermost stage to a main after-air port is 1.1 to 3.3 seconds.Type: GrantFiled: May 14, 2008Date of Patent: February 24, 2015Assignee: Babcock-Hitachi K.K.Inventors: Hisayuki Orita, Masayuki Taniguchi, Akihito Orii, Yuki Kamikawa, Hirofumi Okazaki
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Publication number: 20150013543Abstract: A CO2 separation unit for recovering CO2 from a CO2-containing gas by using a solid CO2 capturing material, in which the amount of used steam is decreased: the unit comprising a capturing material container (1) having a CO2 capturing material for capturing CO2, a first pipeline (2a) for allowing the CO2-containing gas to flow therethrough into the capturing material container (1), a second pipeline (2b) for allowing a gas from which CO2 has been removed by the CO2 capturing material to be discharged therethrough from the capturing material container (1), a third pipeline (2c) for introducing a steam-containing gas to the inside of the capturing material container (1), a fourth pipeline (2d) for allowing a desorbed CO2-containing gas desorbed from the CO2 capturing material, while the steam-containing gas flows in the container, to be discharged therethrough from the capturing material container (1), wherein the unit further includes a compressor (4a) for compressing steam, a fifth pipeline (2e) for connectingType: ApplicationFiled: January 15, 2013Publication date: January 15, 2015Inventors: Kohei Yoshikawa, Hiroki Sato, Masato Kaneeda, Shuichi Kanno, Hisayuki Orita
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Patent number: 8920548Abstract: The CO2 capture system by chemical absorption for removing CO2 from a combustion exhaust gas by a solvent, comprising: an absorber for absorbing CO2 by a solvent, a regenerator for heating a rich solvent absorbed CO2 thereby releasing CO2, a gas exhaust system for discharging gas from the regenerator, a gas compressor installed in the gas exhaust system, a heat exchanger disposed downstream of the gas compressor for exchanging heat between compressed gas and rich solvent to be supplied to the regenerator, a gas-liquid separator disposed downstream of the heat exchanger for separating gas from condensed water, a condensed water supply system for supplying condensed water from the gas-liquid separator to the regenerator, another gas exhaust system for discharging gas containing high-concentration CO2 from the gas-liquid separator, and a compressor disposed downstream of the gas-liquid separator in the another gas exhaust system for pressurizing the gas containing high-concentration CO2.Type: GrantFiled: December 28, 2012Date of Patent: December 30, 2014Assignee: Babcock-Hitachi K.K.Inventors: Nobuyuki Hokari, Hisayuki Orita, Masaaki Mukaide, Jun Shimamura, Kouichi Yokoyama, Noriko Yoshida
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Patent number: 8894757Abstract: The CO2 capture system by chemical absorption for removing CO2 from a combustion exhaust gas by a solvent, comprising: an absorber for absorbing CO2 by a solvent, a regenerator for heating a rich solvent absorbed CO2 thereby releasing CO2, a gas exhaust system for discharging gas from the regenerator, a gas compressor installed in the gas exhaust system, a heat exchanger disposed downstream of the gas compressor for exchanging heat between compressed gas and rich solvent to be supplied to the regenerator, a gas-liquid separator disposed downstream of the heat exchanger for separating gas from condensed water, a condensed water supply system for supplying condensed water from the gas-liquid separator to the regenerator, another gas exhaust system for discharging gas containing high-concentration CO2 from the gas-liquid separator, and a compressor disposed downstream of the gas-liquid separator in the another gas exhaust system for pressurizing the gas containing high-concentration CO2.Type: GrantFiled: December 28, 2012Date of Patent: November 25, 2014Assignee: Babcock-Hitachi K.K.Inventors: Nobuyuki Hokari, Hisayuki Orita, Masaaki Mukaide, Jun Shimamura, Kouichi Yokoyama, Noriko Yoshida
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Patent number: 8752385Abstract: A boiler system including an electric power generation system having a boiler, a steam turbine for generating electric power by steams which received heat at a boiler, a condenser provided at the downstream thereof for condensing the steams, and a heater for heating condensed water by steams extracted from the steam turbine and, further, a CO2 capture system of sorbing and capturing a CO2 gas in an exhausted gas exhausted from the boiler by using a solid CO2 sorbent, and a chimney of exhausting an exhaust gas in the CO2 capture system after recovery of CO2 or an exhaust gas exhausted from the boiler, in which the temperature of a fluid concerned with the boiler system is increased by using the exhaust gas exhausted from the CO2 capture system.Type: GrantFiled: August 21, 2012Date of Patent: June 17, 2014Assignee: Hitachi, Ltd.Inventors: Masato Kaneeda, Hiroki Sato, Kohei Yoshikawa, Shuichi Kanno, Hisayuki Orita
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Publication number: 20130327025Abstract: A combustion exhaust gas treatment system comprising: a heat exchanger (A) for recovering heat contained in the combustion exhaust gas into heat medium, an absorption column for obtaining CO2 removed gas by absorbing CO2 in the combustion exhaust gas into absorbent, a heat exchanger (B) for applying heat recovered by heat medium to the CO2 absorbed absorbent, a desorption column for desorbing the absorbent by removing CO2 from the CO2 absorbed absorbent, a flash tank for flash vaporizing the desorbed absorbent and a heat exchanger (E) for transferring heat from the desorbed absorbent to the CO2 absorbed absorbent, wherein the CO2 absorbed absorbent can be supplied from the absorption column to the desorption column via the heat exchanger (E) and the heat exchanger (B) in this order, and the desorbed absorbent can be supplied from the desorption column to the absorption column via the flash tank and the heat exchanger (E) in this order.Type: ApplicationFiled: June 19, 2012Publication date: December 12, 2013Applicant: BABCOCK-HITACHI KABUSHIKI KAISHAInventors: Jun Shimamura, Toshio Katsube, Kouichi Yokoyama, Yoshihiro Kidera, Nobuyoshi Mishima, Hisayuki Orita
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Publication number: 20130255547Abstract: A pulverized coal-fired boiler efficiently supplies air to a central part of a furnace and the neighborhood of a furnace wall, thereby promoting mixture with combustion gas, and reducing both NOx and CO. The main after air ports are structured so as to jet air having a large momentum for enabling arrival at the central part of the furnace, and the sub-after air ports are structured so as to jet air having a small momentum to the neighborhood of the wall face of the furnace, and a sectional center of each of the sub-after air ports is within a range from 1 to 5 times of a caliber of the main after air ports from a sectional center of each of the main after air ports.Type: ApplicationFiled: May 31, 2013Publication date: October 3, 2013Applicant: BABCOCK-HITACHI K.KInventors: Yuki KAMIKAWA, Masayuki TANIGUCHI, Hisayuki ORITA, Hironobu KOBAYASHI, Akira BABA, Toshihiko MINE, Shinichirou NOMURA, Noriyuki OOYATSU, Satoshi TADAKUMA, Hidehisa YOSHIZAKO, Hiroaki KANEMOTO, Kouji KURAMASHI, Akihito ORII, Shinji TSUDA, Hirofumi OKAZAKI, Takanori YANO, Katsumi SHIMOHIRA
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Patent number: 8505472Abstract: A pulverized coal-fired boiler efficiently supplies air to a central part of a furnace and the neighborhood of a furnace wall, thereby promoting mixture with combustion gas, and reducing both NOx and CO. The main after air ports are structured so as to jet air having a large momentum for enabling arrival at the central part of the furnace, and the sub-after air ports are structured so as to jet air having a small momentum to the neighborhood of the wall face of the furnace, and a sectional center of each of the sub-after air ports is within a range from 1 to 5 times of a caliber of the main after air ports from a sectional center of each of the main after air ports.Type: GrantFiled: January 10, 2007Date of Patent: August 13, 2013Assignee: Babcock-Hitachi K.K.Inventors: Yuki Kamikawa, Masayuki Taniguchi, Hisayuki Orita, Hironobu Kobayashi, Akira Baba, Toshihiko Mine, Shinichirou Nomura, Noriyuki Ooyatsu, Satoshi Tadakuma, Hidehisa Yoshizako, Hiroaki Kanemoto, Kouji Kuramashi, Akihito Orii, Shinji Tsuda, Hirofumi Okazaki, Takanori Yano, Katsumi Shimohira
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Patent number: 8500881Abstract: The present invention discloses a carbon dioxide capture power generation system provided with a boiler to combust a fuel in the oxygen atmosphere, a carbon dioxide capture equipment to remove carbon dioxide in the wake flow of the boiler, a piping branching from the wake flow of the boiler to recycle the combustion exhaust gas to the boiler, and a desulfurization equipment to remove sulfur oxides and a sulfuric acid removal equipment to remove a sulfuric acid gas in the upstream of carbon dioxide capture equipment and in the wake flow of the boiler.Type: GrantFiled: August 19, 2010Date of Patent: August 6, 2013Assignee: Hitachi, Ltd.Inventors: Hisayuki Orita, Masaaki Mukaide, Nobuyuki Hokari, Tsuyoshi Shibata, Masayuki Taniguchi
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Publication number: 20130062883Abstract: A boiler system including an electric power generation system having a boiler, a steam turbine for generating electric power by steams which received heat at a boiler, a condenser provided at the downstream thereof for condensing the steams, and a heater for heating condensed water by steams extracted from the steam turbine and, further, a CO2 capture system of sorbing and capturing a CO2 gas in an exhausted gas exhausted from the boiler by using a solid CO2 sorbent, and a chimney of exhausting an exhaust gas in the CO2 capture system after recovery of CO2 or an exhaust gas exhausted from the boiler, in which the temperature of a fluid concerned with the boiler system is increased by using the exhaust gas exhausted from the CO2 capture system.Type: ApplicationFiled: August 21, 2012Publication date: March 14, 2013Applicant: Hitachi, Ltd.Inventors: Masato Kaneeda, Hiroki Sato, Kohei Yoshikawa, Shuichi Kanno, Hisayuki Orita
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Publication number: 20130064720Abstract: A carbon dioxide recovery system is provided, in which, a filling rate of the carbon dioxide sorbent in the container indicated by f [%] is positive and larger than or equal to the value obtained by the following expression of 100×(p/(RT))×(x?C)/(a×(100+x/r?100×x/(rC)?x)+(p/(RT))×(x?C)), with respect to the effective molar quantity of the captured carbon dioxide per 1 L of the carbon dioxide sorbent (=a) of the carbon dioxide sorbent to be used, wherein a demanded concentration of recovered carbon dioxide is indicated by x [%], and an amount of the captured gases other than carbon dioxide is indicated by r, and a concentration of dried carbon dioxide in a carbon dioxide-containing gas is indicated by C [%], and a total pressure of the carbon dioxide sorbent occurring when carbon dioxide is captured is indicated by p [Pa].Type: ApplicationFiled: August 23, 2012Publication date: March 14, 2013Applicant: Hitachi, LtdInventors: Hiroki SATO, Kohei Yoshikawa, Masato Kaneeda, Hisayuki Orita, Shuichi Kanno
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Publication number: 20110076216Abstract: The present invention discloses a carbon dioxide capture power generation system provided with a boiler to combust a fuel in the oxygen atmosphere, a carbon dioxide capture equipment to remove carbon dioxide in the wake flow of the boiler, a piping branching from the wake flow of the boiler to recycle the combustion exhaust gas to the boiler, and a desulfurization equipment to remove sulfur oxides and a sulfuric acid removal equipment to remove a sulfuric acid gas in the upstream of carbon dioxide capture equipment and in the wake flow of the boiler.Type: ApplicationFiled: August 19, 2010Publication date: March 31, 2011Applicant: Hitachi, Ltd.Inventors: Hisayuki Orita, Masaaki Mukaide, Nobuyuki Hokari, Tsuyoshi Shibata, Masayuki Taniguchi
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Patent number: 7878130Abstract: A overfiring air port of the present invention is to supply an incomplete combustion region with air making up for combustion-shortage, in a furnace in which the incomplete combustion region less than stoichiometric ratio is formed by a burner. Furthermore, the airport is characterized by comprising: a nozzle mechanism for injecting air including an axial velocity component of an air flow and a radial velocity component directed to a center line of the airport; and a control mechanism for controlling a ratio of these velocity components.Type: GrantFiled: November 3, 2005Date of Patent: February 1, 2011Assignee: Babcock-Hitachi K.K.Inventors: Kenji Yamamoto, Hirofumi Okazaki, Masayuki Taniguchi, Kazumi Yasuda, Kenji Kiyama, Takanori Yano, Akira Baba, Kenichi Ochi, Hisayuki Orita, Akihito Orii, Yuki Kamikawa, Kouji Kuramashi
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Publication number: 20100223926Abstract: A pulverized coal thermal power generation system that significantly reduces the amount of NOx emissions from a boiler and does not require a denitration unit is provided. When a denitration unit is not used, performance to remove mercury from a boiler waste gas is reduced. A waste gas purification system for a pulverized coal boiler, that compensates for this is provided. A pulverized coal boiler having a furnace for burning pulverized coal, burners for supplying pulverized coal and air used for combustion into the furnace so as to burn the pulverized coal in an insufficient air state and after-air ports provided on the downstream side of the burners for supplying air used for perfect combustion characterized in that, an air ratio in the furnace is 1.05 to 1.14, and the residence time of a combustion gas from the burner disposed on the uppermost stage to a main after-air port is 1.1 to 3.3 seconds.Type: ApplicationFiled: May 14, 2008Publication date: September 9, 2010Applicant: Babcock-Hitachi K.K.Inventors: Hisayuki Orita, Masayuki Taniguchi, Akihito Orii, Yuki Kamikawa, Hirofumi Okazaki
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Publication number: 20100224108Abstract: A pulverized coal-fired boiler efficiently supplies air to a central part of a furnace and the neighborhood of a furnace wall, thereby promoting mixture with combustion gas, and reducing both NOx and CO. The main after air ports are structured so as to jet air having a large momentum for enabling arrival at the central part of the furnace, and the sub-after air ports are structured so as to jet air having a small momentum to the neighborhood of the wall face of the furnace, and a sectional center of each of the sub-after air ports is within a range from 1 to 5 times of a caliber of the main after air ports from a sectional center of each of the main after air ports.Type: ApplicationFiled: January 10, 2007Publication date: September 9, 2010Inventors: Yuki Kamikawa, Masayuki Taniguchi, Hisayuki Orita, Hironobu Kobayashi, Akira Baba, Toshihiko Mine, Shinichirou Nomura, Noriyuki Ooyatsu, Satoshi Tadakuma, Hidehisa Yoshizako, Hiroaki Kanemoto, Kouji Kuramashi, Akihito Orii, Shinji Tsuda, Hirofumi Okazaki, Takanori Yano, Katsumi Shimohira