Patents by Inventor Tomoya Murota
Tomoya Murota 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).
-
Patent number: 11486301Abstract: To suppress separation of air flows in air holes that are positioned in the outermost circumferential row in an air hole plate, but are far from a turn guide.Type: GrantFiled: December 11, 2019Date of Patent: November 1, 2022Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Keisuke Miura, Shohei Uramoto, Tomoya Murota, Yuki Kamikawa, Shingo Yoshida
-
Publication number: 20200240326Abstract: To suppress separation of air flows in air holes that are positioned in the outermost circumferential row in an air hole plate, but are far from a turn guide.Type: ApplicationFiled: December 11, 2019Publication date: July 30, 2020Inventors: Keisuke MIURA, Shohei URAMOTO, Tomoya MUROTA, Yuki KAMIKAWA, Shingo YOSHIDA
-
Patent number: 8596070Abstract: A combustor and a combustion method for the combustor, which can suppress backfire and ensure stable combustion. The combustor comprises a mixing-chamber forming member for forming therein a mixing chamber in which air for combustion and fuel are mixed with each other, and a combustion chamber for burning a gas mixture mixed in the mixing chamber and producing combustion gases. A channel for supplying the air for combustion to the mixing chamber from the outer peripheral side of the mixing-chamber forming member is provided inside the mixing-chamber forming member. The fuel and the air are premixed in the channel, and a resulting premixed gas mixture is supplied to the mixing chamber.Type: GrantFiled: October 1, 2009Date of Patent: December 3, 2013Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Hiroshi Inoue, Tomoya Murota, Toshifumi Sasao, Nariyoshi Kobayashi
-
Patent number: 8393159Abstract: A gas turbine combustor for mixing fuel into combustion air introduced from a compressor, burning an air-fuel mixture, and supplying produced combustion gas to a gas turbine. The combustor has a liquid fuel nozzle for jetting out liquid fuel and a pre-mixture chamber wall having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out from the liquid fuel nozzle, and defining a pre-mixture chamber therein. A plurality of gaseous fuel nozzles are disposed around the pre-mixture chamber wall in an opposing relation respectively to a plurality of air inlet holes bored through the pre-mixture chamber wall and jet out gaseous fuel substantially coaxially with the axes of the air inlet holes.Type: GrantFiled: July 7, 2009Date of Patent: March 12, 2013Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
-
Patent number: 8047003Abstract: A combustor comprises a liquid fuel nozzle for injecting liquid fuel to a combustion chamber, and an air supply nozzle disposed around the liquid fuel nozzle and injecting air. The air supply nozzle is disposed such that air is injected from the air supply nozzle in a direction toward an axis of the liquid fuel nozzle. A space is formed around an outlet of the liquid fuel nozzle, through which the liquid fuel is injected from the liquid fuel nozzle to the combustion chamber, upstream of a distal end of the outlet in a direction in which the liquid fuel is injected. Carbonaceous deposits on surrounding surfaces of the outlet of the liquid fuel nozzle can be suppressed regardless of the operating conditions of a combustor.Type: GrantFiled: September 28, 2010Date of Patent: November 1, 2011Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Hiroshi Inoue, Tomoya Murota, Toshifumi Sasao, Akinori Hayashi, Isao Takehara
-
Patent number: 7891191Abstract: A combustor comprises a liquid fuel nozzle for injecting liquid fuel to a combustion chamber, and an air supply nozzle disposed around the liquid fuel nozzle and injecting air. The air supply nozzle is disposed such that air is injected from the air supply nozzle in a direction toward an axis of the liquid fuel nozzle. A space is formed around an outlet of the liquid fuel nozzle, through which the liquid fuel is injected from the liquid fuel nozzle to the combustion chamber, upstream of a distal end of the outlet in a direction in which the liquid fuel is injected. Carbonaceous deposits on surrounding surfaces of the outlet of the liquid fuel nozzle can be suppressed regardless of the operating conditions of a combustor.Type: GrantFiled: August 24, 2005Date of Patent: February 22, 2011Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Hiroshi Inoue, Tomoya Murota, Toshifumi Sasao, Akinori Hayashi, Isao Takehara
-
Publication number: 20110011092Abstract: A combustor comprises a liquid fuel nozzle for injecting liquid fuel to a combustion chamber, and an air supply nozzle disposed around the liquid fuel nozzle and injecting air. The air supply nozzle is disposed such that air is injected from the air supply nozzle in a direction toward an axis of the liquid fuel nozzle. A space is formed around an outlet of the liquid fuel nozzle, through which the liquid fuel is injected from the liquid fuel nozzle to the combustion chamber, upstream of a distal end of the outlet in a direction in which the liquid fuel is injected. Carbonaceous deposits on surrounding surfaces of the outlet of the liquid fuel nozzle can be suppressed regardless of the operating conditions of a combustor.Type: ApplicationFiled: September 28, 2010Publication date: January 20, 2011Inventors: Shouhei YOSHIDA, Yoshitaka Hirata, Hiroshi Inoue, Tomoya Murota, Toshifumi Sasao, Akinori Hayashi, Isao Takehara
-
Publication number: 20100170248Abstract: A combustor and a combustion method for the combustor, which can suppress backfire and ensure stable combustion. The combustor comprises a mixing-chamber forming member for forming therein a mixing chamber in which air for combustion and fuel are mixed with each other, and a combustion chamber for burning a gas mixture mixed in the mixing chamber and producing combustion gases. A channel for supplying the air for combustion to the mixing chamber from the outer peripheral side of the mixing-chamber forming member is provided inside the mixing-chamber forming member. The fuel and the air are premixed in the channel, and a resulting premixed gas mixture is supplied to the mixing chamber.Type: ApplicationFiled: October 1, 2009Publication date: July 8, 2010Inventors: Shouhei YOSHIDA, Yoshitaka Hirata, Hiroshi Inoue, Tomoya Murota, Toshifumi Sasao, Nariyoshi Kobayashi
-
Patent number: 7673455Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: GrantFiled: March 28, 2008Date of Patent: March 9, 2010Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
-
Publication number: 20100000218Abstract: A gas turbine combustor for mixing fuel into combustion air introduced from a compressor, burning an air-fuel mixture, and supplying produced combustion gas to a gas turbine. The combustor has a liquid fuel nozzle for jetting out liquid fuel and a pre-mixture chamber wall having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out from the liquid fuel nozzle, and defining a pre-mixture chamber therein. A plurality of gaseous fuel nozzles are disposed around the pre-mixture chamber wall in an opposing relation respectively to a plurality of air inlet holes bored through the pre-mixture chamber wall and jet out gaseous fuel substantially coaxially with the axes of the air inlet holes.Type: ApplicationFiled: July 7, 2009Publication date: January 7, 2010Applicant: HITACHI, LTD.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
-
Patent number: 7610759Abstract: A combustor and a combustion method for the combustor, which can suppress backfire and ensure stable combustion. The combustor comprises a mixing-chamber forming member for forming therein a mixing chamber in which air for combustion and fuel are mixed with each other, and a combustion chamber for burning a gas mixture mixed in the mixing chamber and producing combustion gases. A channel for supplying the air for combustion to the mixing chamber from the outer peripheral side of the mixing-chamber forming member is provided inside the mixing-chamber forming member. The fuel and the air are premixed in the channel, and a resulting premixed gas mixture is supplied to the mixing chamber.Type: GrantFiled: October 4, 2005Date of Patent: November 3, 2009Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Hiroshi Inoue, Tomoya Murota, Toshifumi Sasao, Nariyoshi Kobayashi
-
Patent number: 7571612Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: GrantFiled: March 28, 2008Date of Patent: August 11, 2009Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
-
Patent number: 7571609Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: GrantFiled: March 28, 2008Date of Patent: August 11, 2009Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
-
Patent number: 7426833Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: GrantFiled: June 17, 2004Date of Patent: September 23, 2008Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
-
Publication number: 20080209909Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel, a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: ApplicationFiled: March 28, 2008Publication date: September 4, 2008Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
-
Publication number: 20080190113Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: ApplicationFiled: March 28, 2008Publication date: August 14, 2008Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
-
Publication number: 20080190112Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: ApplicationFiled: March 28, 2008Publication date: August 14, 2008Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
-
Publication number: 20080063907Abstract: A module of solid oxide fuel cells, which is capable of making a temperature distribution of the module uniform, is composed of a plurality of fuel cells which are assembled together, and is adapted to be capable of controlling gas temperatures and/or gas flow rates of gasses fed into a center part and a peripheral part of the module, independent from each other. With this configuration, when the temperature of the center part of the module becomes higher than that of the peripheral part of the module during a temperature rise, the temperature or the flow rate of the gas fed into the center part of the module is controlled so as to restrain the temperature of the center part of the module from being increasing.Type: ApplicationFiled: January 25, 2007Publication date: March 13, 2008Inventors: Shin Takahashi, Hiromi Tokoi, Akira Gunji, Tomoya Murota
-
Publication number: 20060127827Abstract: A combustor and a combustion method for the combustor, which can suppress backfire and ensure stable combustion. The combustor comprises a mixing-chamber forming member for forming therein a mixing chamber in which air for combustion and fuel are mixed with each other, and a combustion chamber for burning a gas mixture mixed in the mixing chamber and producing combustion gases. A channel for supplying the air for combustion to the mixing chamber from the outer peripheral side of the mixing-chamber forming member is provided inside the mixing-chamber forming member. The fuel and the air are premixed in the channel, and a resulting premixed gas mixture is supplied to the mixing chamber.Type: ApplicationFiled: October 4, 2005Publication date: June 15, 2006Inventors: Shouhei Yoshida, Yoshitaka Hirata, Hiroshi Inoue, Tomoya Murota, Toshifumi Sasao, Narlyoshi Kobayashi
-
Publication number: 20060042254Abstract: A combustor comprises a liquid fuel nozzle for injecting liquid fuel to a combustion chamber, and an air supply nozzle disposed around the liquid fuel nozzle and injecting air. The air supply nozzle is disposed such that air is injected from the air supply nozzle in a direction toward an axis of the liquid fuel nozzle. A space is formed around an outlet of the liquid fuel nozzle, through which the liquid fuel is injected from the liquid fuel nozzle to the combustion chamber, upstream of a distal end of the outlet in a direction in which the liquid fuel is injected. Carbonaceous deposits on surrounding surfaces of the outlet of the liquid fuel nozzle can be suppressed regardless of the operating conditions of a combustor.Type: ApplicationFiled: August 24, 2005Publication date: March 2, 2006Inventors: Shouhei Yoshida, Yoshitaka Hirata, Hiroshi Inoue, Tomoya Murota, Toshifumi Sasao, Akinori Hayashi, Isao Takehara