Patents by Inventor Tadanori Yanai
Tadanori Yanai 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: 20110061628Abstract: An internal combustion engine is ignition-combustion started with or without cranking by controlling the ignition-combustion based on combustion chamber pressure, or engine temperature, or piston position, or the time elapsed since the engine was stopped, or a combination of these considerations.Type: ApplicationFiled: December 28, 2005Publication date: March 17, 2011Applicant: NISSAN MOTOR CO., LTD.Inventors: Hidehiro Fujita, Naoki Osada, Yoshitaka Matsuki, Masahiko Yuya, Atsushi Mitsuhori, Tadanori Yanai, Takatsugu Katayama, Shouta Hamane
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Patent number: 7415955Abstract: In one aspect, an internal combustion engine includes a fuel injector for injecting fuel into a combustion chamber to produce an air-fuel mixture in the combustion chamber, a spark plug for igniting the air-fuel mixture to cause combustion in the combustion chamber and a controller controls the spark plug to cause combustion in the combustion chamber to apply a torque to start the engine from a stopped condition. The controller determines whether the operation of the engine will be stopped, and adjusts an operating condition of the engine if the controller determines the engine operation will be stopped.Type: GrantFiled: January 17, 2006Date of Patent: August 26, 2008Assignee: Nissan Motor Co., Ltd.Inventors: Yoshitaka Matsuki, Naoki Osada, Hidehiro Fujita, Masahiko Yuuya, Atsushi Mitsuhori, Tadanori Yanai, Takatsugu Katayama, Shouta Hamane
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Patent number: 7357109Abstract: Embodiments are disclosed to reliably carry out engine starting without cranking. Using an internal combustion engine 1, when an idle stop condition is established, a third path switching valve 28 that is provided at the connection of the compressed air supply path 25 and a first blow-by path 21, and a blow-by control valve 24 are “closed”. The connection of the crankcase to the inlet path 14 is blocked, idling for a designated time is carried out, and finally the engine is stopped. On the other hand, when the idle stop release condition is established, an inlet valve 8 is “opened”, and the first to third path switching valves 26 to 28 are “closed”, thereby operating a compressor 17 for a designated period of time. Compressed air is thereby supplied to the combustion chamber 2 and the crankcase via the compressed air supply path 25, allowing an increase in the internal cylinder pressure. Finally, the engine is started.Type: GrantFiled: December 27, 2005Date of Patent: April 15, 2008Assignee: Nissan Motor Co., Ltd.Inventors: Atsushi Mitsuhori, Naoki Osada, Hidehiro Fujita, Yoshitaka Matsuki, Masahiko Yuuya, Tadanori Yanai, Takatsugu Katayama, Shouta Hamane
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Patent number: 7308880Abstract: A starting system rotates and starts an internal combustion engine by injecting fuel into a predetermined cylinder using an injector and igniting the fuel using an ignition plug, and upon starting the engine, the fuel pressure supplied to the injector is detected, and the engine is started by combustion in the predetermined cylinder only when the detected pressure is at or greater than the predetermined pressure, thereby guaranteeing the fuel pressure when combustion starting is employed, and consequently the engine can be securely started.Type: GrantFiled: February 3, 2006Date of Patent: December 18, 2007Assignee: Nissan Motor Co., Ltd.Inventors: Takatsugu Katayama, Naoki Osada, Yoshitaka Matsuki, Hidehiro Fujita, Masahiko Yuuya, Atsushi Mitsuhori, Tadanori Yanai, Shouta Hamane
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Patent number: 7233856Abstract: An internal combustion engine and control method therefor in which the engine is selectively started by combustion without cranking. The temperature in the combustion chamber of an engine cylinder is stabilized upon starting of the engine, thereby allowing secured staring without cranking. When predetermined idling stop conditions (or engine stop conditions) are established, the temperature in the combustion chamber is estimated based on engine operating conditions read before such establishment, and the period of maintaining a engine rotational speed in a predetermined low range before stopping the engine is calculated or estimated based on the estimated temperature in the combustion chamber. The engine is then stopped after the calculated or estimated period of maintaining the engine rotational speed in the predetermined low range.Type: GrantFiled: December 27, 2005Date of Patent: June 19, 2007Assignee: Nissaan Motor Co., Ltd.Inventors: Masahiko Yuya, Naoki Osada, Yoshitaka Matsuki, Hidehiro Fujita, Atsushi Mitsuhori, Tadanori Yanai, Takatsugu Katayama, Shouta Hamane
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Publication number: 20060185637Abstract: Embodiments are disclosed to reliably carry out engine starting without cranking. Using an internal combustion engine 1, when an idle stop condition is established, a third path switching valve 28 that is provided at the connection of the compressed air supply path 25 and a first blow-by path 21, and a blow-by control valve 24 are “closed”. The connection of the crankcase to the inlet path 14 is blocked, idling for a designated time is carried out, and finally the engine is stopped. On the other hand, when the idle stop release condition is established, an inlet valve 8 is “opened”, and the first to third path switching valves 26 to 28 are “closed”, thereby operating a compressor 17 for a designated period of time. Compressed air is thereby supplied to the combustion chamber 2 and the crankcase via the compressed air supply path 25, allowing an increase in the internal cylinder pressure. Finally, the engine is started.Type: ApplicationFiled: December 27, 2005Publication date: August 24, 2006Inventors: Atsushi Mitsuhori, Naoki Osada, Hidehiro Fujita, Yoshitaka Matsuki, Masahiko Yuuya, Tadanori Yanai, Takatsugu Katayama, Shouta Hamane
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Publication number: 20060180112Abstract: A starting system rotates and starts an internal combustion engine by injecting fuel into a predetermined cylinder using an injector and igniting the fuel using an ignition plug, and upon starting the engine, the fuel pressure supplied to the injector is detected, and the engine is started by combustion in the predetermined cylinder only when the detected pressure is at or greater than the predetermined pressure, thereby guaranteeing the fuel pressure when combustion starting is employed, and consequently the engine can be securely started.Type: ApplicationFiled: February 3, 2006Publication date: August 17, 2006Inventors: Takatsugu Katayama, Naoki Osada, Yoshitaka Matsuki, Hidehiro Fujita, Masahiko Yuuya, Atsushi Mitsuhori, Tadanori Yanai, Shouta Hamane
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Publication number: 20060157023Abstract: In one aspect, an internal combustion engine includes a fuel injector for injecting fuel into a combustion chamber to produce an air-fuel mixture in the combustion chamber, a spark plug for igniting the air-fuel mixture to cause combustion in the combustion chamber and a controller controls the spark plug to cause combustion in the combustion chamber to apply a torque to start the engine from a stopped condition. The controller determines whether the operation of the engine will be stopped, and adjusts an operating condition of the engine if the controller determines the engine operation will be stopped.Type: ApplicationFiled: January 17, 2006Publication date: July 20, 2006Inventors: Yoshitaka Matsuki, Naoki Osada, Hidehiro Fujita, Masahiko Yuuya, Atsushi Mitsuhori, Tadanori Yanai, Takatsugu Katayama, Shouta Hamane
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Publication number: 20060142928Abstract: An internal combustion engine and control method therefor in which the engine is selectively started by combustion without cranking. The temperature in the combustion chamber of an engine cylinder is stabilized upon starting of the engine, thereby allowing secured staring without cranking. When predetermined idling stop conditions (or engine stop conditions) are established, the temperature in the combustion chamber is estimated based on engine operating conditions read before such establishment, and the period of maintaining a engine rotational speed in a predetermined low range before stopping the engine is calculated or estimated based on the estimated temperature in the combustion chamber. The engine is then stopped after the calculated or estimated period of maintaining the engine rotational speed in the predetermined low range.Type: ApplicationFiled: December 27, 2005Publication date: June 29, 2006Inventors: Masahiko Yuya, Naoki Osada, Yoshitaka Matsuki, Hidehiro Fujita, Atsushi Mitsuhori, Tadanori Yanai, Takatsugu Katayama, Shouta Hamane