Patents by Inventor Nobuaki Murakami
Nobuaki Murakami 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: 9890734Abstract: An engine includes first nozzles, second nozzles and a control unit. The first nozzles are arranged in cylinders, and inject fuel directly into the cylinders respectively. The second nozzles are arranged in intake ports of the cylinders, and inject fuel into the intake ports respectively. The control unit controls fuel injection of the first nozzles and the second nozzles. When the engine is started, the control unit performs initial fuel injection by one of the first and second nozzles into the cylinders having odd-number of initial ignition order, and performs initial fuel injection by the other one of the first and second nozzles into the cylinders having even-number of initial ignition order.Type: GrantFiled: May 5, 2015Date of Patent: February 13, 2018Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Takashi Kawabe, Fumiaki Hiraishi, Nobuaki Murakami
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Publication number: 20150233317Abstract: An engine includes first nozzles, second nozzles and a control unit. The first nozzles are arranged in cylinders, and inject fuel directly into the cylinders respectively. The second nozzles are arranged in intake ports of the cylinders, and inject fuel into the intake ports respectively. The control unit controls fuel injection of the first nozzles and the second nozzles. When the engine is started, the control unit performs initial fuel injection by one of the first and second nozzles into the cylinders having odd-number of initial ignition order, and performs initial fuel injection by the other one of the first and second nozzles into the cylinders having even-number of initial ignition order.Type: ApplicationFiled: May 5, 2015Publication date: August 20, 2015Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Takashi KAWABE, Fumiaki HIRAISHI, Nobuaki MURAKAMI
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Publication number: 20150005399Abstract: A method for producing synthetic gas with which a virtually soot-free synthetic gas having a good composition can be efficiently obtained by a simple device using a liquid biofuel as the starting material, and it is thereby possible to produce a high-quality liquid fuel such as methanol, gasoline or kerosene. Steam and a liquid biofuel produced by pyrolysis of a biomass are fed to the gasification space inside a reactor tube that is not loaded with a catalyst inside the reactor tube and heated to 800 to 1,200° C. from the outside via the reactor tube walls to induce an endothermic reaction and thereby a steam reforming chemical reaction between the steam and the liquid biofuel. By setting the molar ratio of the fed steam and carbon in the liquid biofuel ([H2O]/[C]) at 0.3 or higher, a synthetic gas having a good composition that is virtually free of tar and soot and is primarily H2 and CO is obtained.Type: ApplicationFiled: November 29, 2012Publication date: January 1, 2015Inventors: Masayasu Sakai, Nobuaki Murakami, Nobutaka Morimitsu, Yasunori Takei, Akira Hasegawa
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Publication number: 20140273262Abstract: Provided is a catalytic combustion typed gas sensor of detecting a combustible gas having a concentration equal to or more than a predetermined value based on a raised electric resistance. Herein, combustion heat generated when a combustible gas contacts to a catalytic metal (or detection element) heated by passing electric current therethrough raises a temperature and electric resistance of the catalytic metal. The electric current is made to pass through the catalytic metal such that the temperature of the catalytic metal becomes a standby temperature which is calculated by subtracting the raised temperature portion from a desorption temperature. The combustion heat is generated when the combustible gas contacts to the catalytic metal. Note the catalytic metal adsorbs a silicone compound via a silicon (Si) poisoning process and then desorbs the resulting adsorbed silicone compound at the desorption temperature. The desorption temperature is set in the range over 350° C. to 600° C.Type: ApplicationFiled: May 29, 2014Publication date: September 18, 2014Applicant: Honda Motor Co., Ltd.Inventors: Kazuhiro OKAJIMA, Hidetoshi OISHI, Shunji TSUKABAYASHI, Akihiro SUZUKI, Nobuaki MURAKAMI, Satoshi MORIMOTO, Hiroshi KODA, Takashi MATSUMOTO
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Publication number: 20140239233Abstract: Provided is a method for producing a production gas and an apparatus using the same with which a load may be increased in biomass treatment and the quality of the production gas may be improved. According to the present invention, a raw material fluid (F2) containing a biomass (M1) is supplied from an upstream end (22a) toward a downstream end (22b) in a raw material passage (22) separated from the outside by a reaction tube wall (21), and the raw fluid (F2) of the raw material passage (22) is heated from the outer side of the raw material passage (22) through the reaction tube wall (21) by a first heating means (F1). The raw material passage (22) comprises a first gasification region (23) where a first gasification reaction occurs in which at least part of the biomass is gasified by heating conducted by the first heating means (F1), and a second gasification area (25) disposed closer to the downstream end (22b) than to the first gasification region (23).Type: ApplicationFiled: June 4, 2012Publication date: August 28, 2014Inventors: Masayasu Sakai, Nobuaki Murakami, Akira Hasegawa
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Publication number: 20130058831Abstract: Provided is a catalytic combustion typed gas sensor of detecting a combustible gas having a concentration equal to or more than a predetermined value based on a raised electric resistance. Herein, combustion heat generated when a combustible gas contacts to a catalytic metal (or detection element) heated by passing electric current therethrough raises a temperature and electric resistance of the catalytic metal. The electric current is made to pass through the catalytic metal such that the temperature of the catalytic metal becomes a standby temperature which is calculated by subtracting the raised temperature portion from a desorption temperature. The combustion heat is generated when the combustible gas contacts to the catalytic metal. Note the catalytic metal adsorbs a silicone compound via a silicon (Si) poisoning process and then desorbs the resulting adsorbed silicone compound at the desorption temperature. The desorption temperature is set in the range over 350° C. to 600° C.Type: ApplicationFiled: May 11, 2011Publication date: March 7, 2013Applicant: HONDA MOTOR CO., LTD.Inventors: Kazuhiro Okajima, Hidetoshi Oishi, Shunji Tsukabayashi, Akihiro Suzuki, Nobuaki Murakami, Satoshi Morimoto, Hiroshi Koda, Takashi Matsumoto
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Patent number: 8205585Abstract: In a variable valve gear for an internal combustion engine provided with a camshaft phase change mechanism for variably controlling opening and closing timings of an intake valve, the camshaft phase change mechanism and a variable valve lift mechanism are controlled so that the closing timing of the intake valve is advanced beyond a predetermined range T1 including a bottom dead center when a load L of the internal combustion engine is less than a first predetermined value L1 and that the closing timing of the intake valve is delayed beyond the predetermined range T1 when the load L of the internal combustion engine is not less than the first predetermined value L1.Type: GrantFiled: November 10, 2009Date of Patent: June 26, 2012Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hitoshi Toda, Masayuki Takagaki, Satoshi Yoshikawa, Shinichi Murata, Nobuaki Murakami
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Patent number: 8100992Abstract: A biomass thermochemical gasification apparatus is provided that can manufacture high-quality fuel gas out of solid biomass in an industrial manner. This fuel gas can be used as fuel for a gas engine and a gas turbine for example and also can be used as synthesis gas for methanol synthesis. A high-temperature combustion gas generation apparatus (101) for biomass operates entirely by biomass and the heat source thereof does not depend on fossil fuel. A coarsely-ground powder biomass (205) subjected to gasification and gasification agent (303) are introduced to a primary gasification reaction room (202) and generate gasification reaction by, as reaction heat, radiation heat from a wall face of the primary gasification reaction room (202) heated by combustion gas (109a) generated in the high-temperature combustion gas generation apparatus (101) and are dissolved. Consequently, the biomass (205) is converted to clean and high-quality generated gas.Type: GrantFiled: October 22, 2007Date of Patent: January 24, 2012Assignee: Nagasaki Institute of Applied ScienceInventors: Masayasu Sakai, Toshiyuki Takegawa, Hachiro Kawashima, Nobuaki Murakami
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Publication number: 20100299995Abstract: A biomass thermochemical gasification apparatus is provided that can manufacture high-quality fuel gas out of solid biomass in an industrial manner. This fuel gas can be used as fuel for a gas engine and a gas turbine for example and also can be used as synthesis gas for methanol synthesis. A high-temperature combustion gas generation apparatus (101) for biomass operates entirely by biomass and the heat source thereof does not depend on fossil fuel. A coarsely-ground powder biomass (205) subjected to gasification and gasification agent (303) are introduced to a primary gasification reaction room (202) and generate gasification reaction by, as reaction heat, radiation heat from a wall face of the primary gasification reaction room (202) heated by combustion gas (109a) generated in the high-temperature combustion gas generation apparatus (101) and are dissolved. Consequently, the biomass (205) is converted to clean and high-quality generated gas.Type: ApplicationFiled: October 22, 2007Publication date: December 2, 2010Inventors: Masayasu Sakai, Toshiyuld Takegawa, Nobuaki Murakami
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Publication number: 20100116232Abstract: In a variable valve gear for an internal combustion engine provided with a camshaft phase change mechanism for variably controlling opening and closing timings of an intake valve, the camshaft phase change mechanism and a variable valve lift mechanism are controlled so that the closing timing of the intake valve is advanced beyond a predetermined range T1 including a bottom dead center when a load L of the internal combustion engine is less than a first predetermined value L1 and that the closing timing of the intake valve is delayed beyond the predetermined range T1 when the load L of the internal combustion engine is not less than the first predetermined value L1.Type: ApplicationFiled: November 10, 2009Publication date: May 13, 2010Applicant: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hitoshi TODA, Masayuki TAKAGAKI, Satoshi YOSHIKAWA, Shinichi MURATA, Nobuaki MURAKAMI
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Publication number: 20090318572Abstract: The liquid fuel synthesizing apparatus (1) for efficient synthesis of liquid fuel from biomass, such as plant for a raw material, comprised of reactors (2) with a catalyst incorporated therein, coolers (3) for cooling of synthesized gaseous matter and extracting of liquid fuel, and temperature adjustment means (7) for regulating by heat exchange any unreacted gas after recovery of liquid fuel to reaction temperature suitable for liquid fuel gas synthesis, wherein the reactors, the coolers and the temperature adjustment means are arranged multistage inline-straightly along gas flow. The temperature adjustment means (7) and the reactors (2) are disposed in the constant temperature room (8) in parallel. The coolers (3) are disposed apart from the constant temperature rooms (8).Type: ApplicationFiled: December 5, 2007Publication date: December 24, 2009Inventors: Masayasu Sakai, Nobuaki Murakami, Toshiyuki Takegawa, Hachiro Kawashima
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Patent number: 7122264Abstract: A solid electrolyte type fuel battery in which a material for an interconnector for connecting cells of the solid electrolyte type fuel battery comprises a matrix of the general formula MTiO3, where M is an alkaline earth metal element such as Mg, Ca, Sr or Ba. This fuel battery can be produced by burning at a lower temperature of 1,300 to 1,400° C. than before, shows output performance comparable to or better than that of conventional devices, and has better durability and thermo cycle resistance characteristics than the conventional devices.Type: GrantFiled: July 20, 1998Date of Patent: October 17, 2006Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Toshiro Nishi, Nobuaki Murakami, Hirokazu Yamamoto
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Patent number: 6889633Abstract: There is provided an engine cooling system, in which operation tendency information calculating section provided in a control unit calculates values representing the tendency of engine operation, and a control valve provided in a cooling water circulating device is controlled based on the values. It is therefore possible to control the cooling water to a proper temperature conforming to the engine operating condition and improve both the engine power and the fuel economy.Type: GrantFiled: December 23, 2002Date of Patent: May 10, 2005Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Nobuaki Murakami, Tetsuro Ishida
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Publication number: 20030116103Abstract: There is provided an engine cooling system, in which operation tendency information calculating section provided in a control unit calculates values representing the tendency of engine operation, and a control valve provided in a cooling water circulating device is controlled based on the values. It is therefore possible to control the cooling water to a proper temperature conforming to the engine operating condition and improve both the engine power and the fuel economy.Type: ApplicationFiled: December 23, 2002Publication date: June 26, 2003Inventors: Nobuaki Murakami, Tetsuro Ishida
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Patent number: 6491885Abstract: An ammonia generating method characterized by generating ammonia by the contact hydrolysis of urea by contacting at 200° C. or more an aqueous solution of urea with a contact hydrolysis catalyst containing at least one selected from the group consisting of hydroxides, carbonates, and silicates of alkaline metals as the main component, and a combusted exhaust gas processing method using the ammonia generated by the method.Type: GrantFiled: June 28, 2000Date of Patent: December 10, 2002Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Kikuo Tokunaga, Nobuaki Murakami, Toshiaki Ohkubo, Shuya Nagayama, Osamu Naito
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Publication number: 20010038936Abstract: A solid electrolyte type fuel battery in which a material for an interconnector for connecting cells of the solid electrolyte type fuel battery comprises a matrix of the general formula MTiO3, where M is an alkaline earth metal element such as Mg, Ca, Sr or Ba. This fuel battery can be produced by burning at a lower temperature of 1,300 to 1,400° C. than before, shows output performance comparable to or better than that of conventional devices, and has better durability and thermo cycle resistance characteristics than the conventional devices.Type: ApplicationFiled: July 20, 1998Publication date: November 8, 2001Inventors: TOSHIRO NISHI, NOBUAKI MURAKAMI, HIROKAZU YAMAMOTO
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Patent number: 6129065Abstract: In a cylinder injection engine which includes an injection valve disposed in the vicinity of an intake port of the engine and adapted to inject fuel into the combustion chamber, a spark plug disposed closer to the center portion of the combustion chamber than the injection valve, and a piston having a cavity formed in the top face that substantially faces the injection valve and the spark plug, the cavity is formed by smoothly connecting a curved surface located below the spark plug and a curved surface located below the injection valve via a connection curved surface. The curvature .kappa..sub.1 of the curved surface located under the injection valve and the curvature .kappa..sub.2 of the curved surface located under the spark plug satisfy a relationship .kappa..sub.1 <.kappa..sub.2.Type: GrantFiled: April 13, 1998Date of Patent: October 10, 2000Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Katsunori Ueda, Nobuaki Murakami, Takashi Kawabe, Jun Takemura, Tetsuo Kataoka
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Patent number: 5983856Abstract: An intake system construction for an internal combustion engine includes a combustion chamber formed with upper and lower extremities thereof defined by a lower wall of a cylinder head and a top wall of a piston, an intake open end formed in the lower wall in opposition to the combustion chamber on one side of a reference plane which contains a central axis of the cylinder, an intake port formed in communication with the combustion chamber via the intake open end and extending upwardly from the intake open end so that a vertical swirl of inducted air is formed in the combustion chamber, an intake valve having a head portion for opening or closing the intake open end and a stem portion extending from the head portion to an upstream side of the intake port through the cylinder head, and a straightening member arranged in the intake port on a downstream side of the stem portion so that an inducted air flow is straightened on the downstream side of the stem portion.Type: GrantFiled: May 19, 1998Date of Patent: November 16, 1999Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hideyuki Oda, Takashi Kawabe, Nobuaki Murakami, Katsunori Ueda, Satoshi Yoshikawa, Kenji Goto, Tomohiro Ohashi, Eiichi Hiruma, Jyun Takemura, Shigeo Yamamoto, Kazuyoshi Nakane
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Patent number: 5913554Abstract: An intake system construction according to the present invention for an internal combustion engine is provided with a combustion chamber formed with upper and lower extremities thereof defined by a cylinder head and a piston, an intake open end arranged for being opened or closed by an intake valve, an exhaust open end arranged for being opened or closed by an exhaust valve, an intake port formed extending upwardly from the intake open end so that a vertical swirl of inducted air is formed in the combustion chamber, and an exhaust port for discharging combustion gas from the combustion chamber. The intake port is formed wider in one of halves thereof located adjacent a reference plane, which contains a central axis of a cylinder, than in the other half thereof located remote from the reference plane.Type: GrantFiled: January 27, 1998Date of Patent: June 22, 1999Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hideyuki Oda, Takashi Kawabe, Nobuaki Murakami, Katsunori Ueda, Satoshi Yoshikawa, Kenji Goto, Tomohiro Ohashi, Eiichi Hiruma, Jyun Takemura, Shigeo Yamamoto, Kazuyoshi Nakane
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Patent number: 5836284Abstract: An intake system construction according to the present invention for an internal combustion engine is provided with a combustion chamber formed with upper and lower extremities thereof defined by a cylinder head and a piston, an intake open end arranged for being opened or closed by an intake valve, an exhaust open end arranged for being opened or closed by an exhaust valve, an intake port formed extending upwardly from the intake open end so that a vertical swirl of inducted air is formed in the combustion chamber, and an exhaust port for discharging combustion gas from the combustion chamber. The intake port is formed wider in one of halves thereof located adjacent a reference plane, which contains a central axis of a cylinder, than in the other half thereof located remote from the reference plane.Type: GrantFiled: May 15, 1996Date of Patent: November 17, 1998Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hideyuki Oda, Takashi Kawabe, Nobuaki Murakami, Katsunori Ueda, Satoshi Yoshikawa, Kenji Goto, Tomohiro Ohashi, Eiichi Hiruma, Jyun Takemura, Shigeo Yamamoto, Kazuyoshi Nakane