Patents by Inventor Noriaki SUMISYA
Noriaki SUMISYA 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: 9657661Abstract: An engine control system is a system configured to selectively switch between first fuel and second fuel and perform an operation control of a single engine, including: a sensor configured to detect an oxygen concentration of an exhaust gas that is exhausted from the engine; and a control device configured to perform an air-fuel ratio feedback control such that an air-fuel ratio becomes a target air-fuel ratio based on an output signal of the sensor, wherein the control device calculates a correction coefficient of an air-fuel ratio feedback control during an operation with the second fuel, and further stores a fuel composition correction coefficient that is a value in a predetermined range and corrects a difference between the calculated correction coefficient and a targeted correction coefficient arising from a change in composition of the second fuel.Type: GrantFiled: April 17, 2015Date of Patent: May 23, 2017Assignee: KEIHIN CORPORATIONInventors: Takashi Hibira, Shinji Yokoyama, Masaya Ootsuka, Makoto Haruta, Noriaki Sumisya
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Patent number: 9546627Abstract: In a support structure of a direct fuel injection valve capable of supporting a fuel injection valve stably for a long period of time, a valve housing is made of a metal and is provided with a first load bearing portion which is to be supported by an engine in an axial direction of the valve housing, a rear end portion of the fixed core is provided with a second load bearing portion which is to be supported by a resilient holding member in the axial direction, and the first and second load bearing portions are held between the engine and the resilient holding members with a forward set load applied to the resilient holding member by a fuel distribution pipe fitted to a fuel inlet tube and fixed to the engine.Type: GrantFiled: October 18, 2013Date of Patent: January 17, 2017Assignee: Keihin CorporationInventors: Atsushi Okamoto, Atsushi Kamahora, Junichi Miyashita, Noriaki Sumisya
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Patent number: 9435303Abstract: In a fuel injection valve support structure which can apply a substantially constant set load, the fuel injection valve has first and second load receiving portions, the first load receiving portion being supported on the engine, the second load receiving portion being supported on an elastic support member which receives a set load from a fuel supply cap. The elastic support member includes a base plate placed on the second load receiving portion, and an elastic piece curving rearward from one end toward the other end of the base plate, with an apex portion in pressure contact with the cap, the base plate has a portion overhanging from the second load receiving portion and supporting a tip end portion of the elastic piece. The overhang portion starts bending when a load the overhang portion receives from the cap through the elastic piece reaches or exceeds a predetermined value.Type: GrantFiled: November 1, 2013Date of Patent: September 6, 2016Assignee: Keihin CorporationInventors: Takahiro Yasuda, Noriaki Sumisya, Daisuke Kondo, Kenichi Saito
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Patent number: 9371805Abstract: In a fuel injection valve support structure which can apply a substantially constant set load, the fuel injection valve has first and second load receiving portions, the first load receiving portion being supported on the engine, the second load receiving portion being supported on an elastic support member which receives a set load from a fuel supply cap. The elastic support member includes a base plate placed on the second load receiving portion, and an elastic piece curving rearward from one end toward the other end of the base plate, with an apex portion in pressure contact with the cap, the base plate has a portion overhanging from the second load receiving portion and supporting a tip end portion of the elastic piece. The overhang portion starts bending when a load the overhang portion receives from the cap through the elastic piece reaches or exceeds a predetermined value.Type: GrantFiled: November 1, 2013Date of Patent: June 21, 2016Assignee: Keihin CorporationInventors: Takahiro Yasuda, Noriaki Sumisya, Daisuke Kondo, Kenichi Saito
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Publication number: 20150308361Abstract: An engine control system is a system configured to selectively switch between first fuel and second fuel and perform an operation control of a single engine, including: a sensor configured to detect an oxygen concentration of an exhaust gas that is exhausted from the engine; and a control device configured to perform an air-fuel ratio feedback control such that an air-fuel ratio becomes a target air-fuel ratio based on an output signal of the sensor, wherein the control device calculates a correction coefficient of an air-fuel ratio feedback control during an operation with the second fuel, and further stores a fuel composition correction coefficient that is a value in a predetermined range and corrects a difference between the calculated correction coefficient and a targeted correction coefficient arising from a change in composition of the second fuel.Type: ApplicationFiled: April 17, 2015Publication date: October 29, 2015Inventors: Takashi HIBIRA, Shinji YOKOYAMA, Masaya OOTSUKA, Makoto HARUTA, Noriaki SUMISYA
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Publication number: 20140123933Abstract: In a support structure of a direct fuel injection valve capable of supporting a fuel injection valve stably for a long period of time, a valve housing is made of a metal and is provided with a first load bearing portion which is to be supported by an engine in an axial direction of the valve housing, a rear end portion of the fixed core is provided with a second load bearing portion which is to be supported by a resilient holding member in the axial direction, and the first and second load bearing portions are held between the engine and the resilient holding members with a forward set load applied to the resilient holding member by a fuel distribution pipe fitted to a fuel inlet tube and fixed to the engine.Type: ApplicationFiled: October 18, 2013Publication date: May 8, 2014Applicant: KEIHIN CORPORATIONInventors: Atsushi OKAMOTO, Atsushi KAMAHORA, Junichi MIYASHITA, Noriaki SUMISYA
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Publication number: 20140123952Abstract: In a fuel injection valve support structure which can apply a substantially constant set load, the fuel injection valve has first and second load receiving portions, the first load receiving portion being supported on the engine, the second load receiving portion being supported on an elastic support member which receives a set load from a fuel supply cap. The elastic support member includes a base plate placed on the second load receiving portion, and an elastic piece curving rearward from one end toward the other end of the base plate, with an apex portion in pressure contact with the cap, the base plate has a portion overhanging from the second load receiving portion and supporting a tip end portion of the elastic piece. The overhang portion starts bending when a load the overhang portion receives from the cap through the elastic piece reaches or exceeds a predetermined value.Type: ApplicationFiled: November 1, 2013Publication date: May 8, 2014Applicant: Keihin CorporationInventors: Takahiro YASUDA, Noriaki SUMISYA, Daisuke KONDO, Kenichi SAITO