Patents by Inventor Masashi Sagara
Masashi Sagara 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: 7694655Abstract: The purpose of the present invention is to improve cooling efficiency of a cylinder head of an air-cooled engine. With regard to the construction that a cooling fan is provided at one of ends of a crankshaft, and cooling air from the cooling fan is guided to a cylinder head 4 so as to cool the cylinder head 4, an intake manifold 8 is arranged above the cooling fan, a duct 51 is provided at the lateral center of the intake manifold 8 so as to suck air from an air cleaner, cooling air is sent from both sides of the duct 51 to an intake valve, an exhaust valve and an injection nozzle arranged in the cylinder head 4, and a shielding plate 55 is provided at one of lateral sides of the duct 51.Type: GrantFiled: May 16, 2005Date of Patent: April 13, 2010Assignee: Yanmar Co., Ltd.Inventors: Masashi Sagara, Yasuhiro Kanazu, Masami Yoshii
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Patent number: 7644697Abstract: A governor device comprises a first lever connecting a governor lever to a rotary speed setting lever interlockingly, a second lever pivotally supported by the first lever, and a third lever pivotally supported by the second lever, regulated its rotation amount by the second lever and interlocked with a governor weight. A fuel injection compensation spring is provided between the first lever and the second lever so as to bias them for decreasing the rotary speed for a fixed amount at the time of low speed rotation. A compensation starting rotary speed setting device, which is a set load changing means for the fuel injection compensation spring, is provided on the first lever near the fuel injection compensation spring.Type: GrantFiled: August 20, 2004Date of Patent: January 12, 2010Assignee: Yanmar Co., Ltd.Inventors: Jyunichi Samo, Toshio Kamiyama, Masashi Sagara
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Publication number: 20080105220Abstract: The purpose of the present invention is to improve cooling efficiency of a cylinder head of an air-cooled engine. With regard to the construction that a cooling fan is provided at one of ends of a crankshaft, and cooling air from the cooling fan is guided to a cylinder head 4 so as to cool the cylinder head 4, an intake manifold 8 is arranged above the cooling fan, a duct 51 is provided at the lateral center of the intake manifold 8 so as to suck air from an air cleaner, cooling air is sent from both sides of the duct 51 to an intake valve, an exhaust valve and an injection nozzle arranged in the cylinder head 4, and a shielding plate 55 is provided at one of lateral sides of the duct 51.Type: ApplicationFiled: May 16, 2005Publication date: May 8, 2008Inventors: Katsuyuki Shiota, Tomohiko Furuta, Masashi Sagara, Yasuhiro Kanazu, Masami Yoshii
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Publication number: 20070144484Abstract: The purpose of the present invention is to make a limit starting position of the fuel injection amount to be set easily from the outside. A governor device 11 comprises a first lever 31 connecting a governor lever 30 to a rotary speed setting lever 29 interlockingly, a second lever 32 pivotally supported by the first lever 31, and a third lever 33 pivotally supported by the second lever 32, regulated its rotation amount by the second lever 32 and interlocked with a governor weight 22. A fuel injection compensation spring 38 is provided between the first lever 31 and the second lever 32 so as to biases them for decreasing the rotary speed for a fixed amount at the time of low speed rotation. A compensation starting rotary speed setting device 50, which is a set load changing means for the fuel injection compensation spring 38, is provided on the first lever 31 near the fuel injection compensation spring 38.Type: ApplicationFiled: August 20, 2004Publication date: June 28, 2007Applicant: YANMAR CO., LTD.Inventors: Jyunichi Samo, Toshio Kamiyama, Masashi Sagara
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Patent number: 7191753Abstract: The present invention provides an engine cover structure for an engine (1) whose cylinder head (7) is covered at three of front, rear, right and left sides thereof by a fuel tank (10), an air cleaner (20) and a muffler (9), respectively, comprising a cover (50) which covers the remaining one side and/or a top side of the cylinder head (7).Type: GrantFiled: September 7, 2005Date of Patent: March 20, 2007Assignee: Yanmar Co., Ltd.Inventors: Masashi Sagara, Junichi Samo, Toshio Kamiyama, Shinji Nishimura
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Patent number: 7152590Abstract: With regard to a construction that a fan 41 is provided at one side of an engine 1 and covered by a fan casing 45, and an air cleaner 30 is arranged near the fan casing 45 and at a side of a cylinder head 5 on which an intake port 5a is disposed, a suction port 31a communicated with the inside of the fan casing 45 is provided in a main body 31 of the air cleaner 30. A barrier 46 is provided at a position facing to the suction port 31a in the air cleaner 30. A wall standing toward the fan casing 45 and the cylinder head 5 is formed on the outer surface of the main body 31 of the air cleaner 30. An air intake part is provided on one of side surfaces of a cover body 32 of the air cleaner 30 and the cover body 32 is constructed to be an equilateral polygon. An intake pipe 31k communicating the air cleaner 30 with the intake port 5a of the cylinder head 5 is constructed integrally with a main body 31 of the air cleaner 30.Type: GrantFiled: September 7, 2005Date of Patent: December 26, 2006Assignee: Yanmar Co., Ltd.Inventors: Junichi Samo, Katsuyuki Shiota, Yasuhiro Kanazu, Shinji Nishimura, Masashi Sagara
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Publication number: 20060048726Abstract: With regard to a construction that a fan 41 is provided at one side of an engine 1 and covered by a fan casing 45, and an air cleaner 30 is arranged near the fan casing 45 and at a side of a cylinder head 5 on which an intake port 5a is disposed, a suction port 31a communicated with the inside of the fan casing 45 is provided in a main body 31 of the air cleaner 30. A barrier 46 is provided at a position facing to the suction port 31a in the air cleaner 30. A wall standing toward the fan casing 45 and the cylinder head 5 is formed on the outer surface of the main body 31 of the air cleaner 30. An air intake part is provided on one of side surfaces of a cover body 32 of the air cleaner 30 and the cover body 32 is constructed to be an equilateral polygon. An intake pipe 31k communicating the air cleaner 30 with the intake port 5a of the cylinder head 5 is constructed integrally with a main body 31 of the air cleaner 30.Type: ApplicationFiled: September 7, 2005Publication date: March 9, 2006Inventors: Junichi Samo, Katsuyuki Shiota, Yasuhiro Kanazu, Shinji Nishimura, Masashi Sagara
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Publication number: 20060048742Abstract: The present invention provides an engine cover structure for an engine (1) whose cylinder head (7) is covered at three of front, rear, right and left sides thereof by a fuel tank (10), an air cleaner (20) and a muffler (9), respectively, comprising a cover (50) which covers the remaining one side and/or a top side of the cylinder head (7).Type: ApplicationFiled: September 7, 2005Publication date: March 9, 2006Inventors: Masashi Sagara, Junichi Samo, Toshio Kamiyama, Shinji Nishimura
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Patent number: 5097672Abstract: A blow-off duct is rotatably mounted on an air-conditioner. A human body detection device is provided at the blow-off duct in order to detect the presence of a person to be air-conditioned and then to identify the moving direction thereof. Comfortable localized air-conditioning can be realized since a wind direction control device controls a duct drive device of the blow-off duct in response to a human body detected signal and movement signal outputted by the human body detection device, and thus rotating the blow-off duct in accordance with the movement of the person to be air-conditioned.Type: GrantFiled: July 18, 1990Date of Patent: March 24, 1992Assignee: Daikin Industries Ltd.Inventors: Naofumi Takenaka, Ryutaro Ohashi, Masashi Sagara, Ken Takigawa
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Patent number: D509224Type: GrantFiled: September 8, 2004Date of Patent: September 6, 2005Assignee: Yanmar Co., Ltd.Inventors: Katsuyuki Shiota, Masashi Sagara
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Patent number: D522021Type: GrantFiled: September 27, 2004Date of Patent: May 30, 2006Assignee: Yanmar Co., Ltd.Inventors: Manabu Miyazaki, Junichi Samo, Masashi Sagara
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Patent number: D527020Type: GrantFiled: April 7, 2004Date of Patent: August 22, 2006Assignee: Yanmar Co., Ltd.Inventors: Manabu Miyazaki, Junichi Samo, Masashi Sagara