Patents by Inventor Yuusuke Andou
Yuusuke Andou 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: 11384710Abstract: A control device is included in a fuel injection system. The fuel injection system includes a low pressure pump, a high pressure pump, an accumulator, a fuel injection valve, a relief valve, and a return pipe. The high pressure pump increases a pressure of a fuel discharged from the low pressure pump and discharges high pressure fuel. The accumulator stores the high pressure fuel discharged from the high pressure pump. The relief valve is provided in a high pressure portion provided downstream from the high pressure pump and opens when a high pressure abnormality occurs in the high pressure portion. The return pipe returns the high pressure fuel in the high pressure portion to a low pressure portion provided downstream from the low pressure pump by the relief valve opening.Type: GrantFiled: July 22, 2021Date of Patent: July 12, 2022Assignee: DENSO CORPORATIONInventors: Yuusuke Andou, Hisatoshi Shibuya, Satoshi Masuda
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Publication number: 20210348577Abstract: A control device is included in a fuel injection system. The fuel injection system includes a low pressure pump, a high pressure pump, an accumulator, a fuel injection valve, a relief valve, and a return pipe. The high pressure pump increases a pressure of a fuel discharged from the low pressure pump and discharges high pressure fuel. The accumulator stores the high pressure fuel discharged from the high pressure pump. The relief valve is provided in a high pressure portion provided downstream from the high pressure pump and opens when a high pressure abnormality occurs in the high pressure portion. The return pipe returns the high pressure fuel in the high pressure portion to a low pressure portion provided downstream from the low pressure pump by the relief valve opening.Type: ApplicationFiled: July 22, 2021Publication date: November 11, 2021Inventors: Yuusuke ANDOU, Hisatoshi SHIBUYA, Satoshi MASUDA
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Patent number: 9970435Abstract: A high-pressure pump has an elastic member arranged in a damper chamber between a first diaphragm and a second diaphragm. The elastic member is always in contact with both diaphragms while the high-pressure pump is operated. When the diaphragms are further vibrated due to a resonance under a situation where a frequency of the pressure pulsation of low-pressure fuel is in agreement with the characteristic frequency of the diaphragms, the elastic member restricts the deformation of the diaphragms. Therefore, the resonance of the first diaphragm and the second diaphragm can be restricted.Type: GrantFiled: June 3, 2015Date of Patent: May 15, 2018Assignee: DENSO CORPORATIONInventors: Masayuki Kobayashi, Eiji Ito, Yoshitomo Oguma, Yuusuke Andou
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Patent number: 9694763Abstract: A wire harness protector having a grounding function and including a protector main body with a housing portion where a wire harness can be inserted and housed; a vehicle fixing portion protruding from the protector main body; and a conductive metal fitting where one end portion is configured to be fixed by bolting to the vehicle fixing portion and also to a vehicle body, and a ground terminal connecting portion is provided in another end portion. The wire harness protector is configured such that a ground terminal branched to extend from the wire harness can be connected to the ground terminal connecting portion, the ground terminal connecting portion includes a bolt-like portion protruding into the housing portion. The wire harness protector makes it possible to effectively improve assembly work efficiency, and possible to stabilize and suppress poor contact points.Type: GrantFiled: April 21, 2016Date of Patent: July 4, 2017Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Yuusuke Andou
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Publication number: 20160315421Abstract: A wire harness protector having a grounding function and including a protector main body with a housing portion where a wire harness can be inserted and housed; a vehicle fixing portion protruding from the protector main body; and a conductive metal fitting where one end portion is configured to be fixed by bolting to the vehicle fixing portion and also to a vehicle body, and a ground terminal connecting portion is provided in another end portion. The wire harness protector is configured such that a ground terminal branched to extend from the wire harness can be connected to the ground terminal connecting portion, the ground terminal connecting portion includes a bolt-like portion protruding into the housing portion. The wire harness protector makes it possible to effectively improve assembly work efficiency, and possible to stabilize and suppress poor contact points.Type: ApplicationFiled: April 21, 2016Publication date: October 27, 2016Inventor: Yuusuke ANDOU
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Publication number: 20150260182Abstract: A high-pressure pump has an elastic member arranged in a damper chamber between a first diaphragm and a second diaphragm. The elastic member is always in contact with both diaphragms while the high-pressure pump is operated. When the diaphragms are further vibrated due to a resonance under a situation where a frequency of the pressure pulsation of low-pressure fuel is in agreement with the characteristic frequency of the diaphragms, the elastic member restricts the deformation of the diaphragms. Therefore, the resonance of the first diaphragm and the second diaphragm can be restricted.Type: ApplicationFiled: June 3, 2015Publication date: September 17, 2015Inventors: Masayuki KOBAYASHI, Eiji ITO, Yoshitomo OGUMA, Yuusuke ANDOU
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Patent number: 9096185Abstract: A grommet includes a resin inner assembled to a grommet main body composed of a rubber or elastomer, a seal lip provided in the grommet main body to press against an outer surface of a body panel, and an engagement tab provided in the resin inner to engage with a periphery of a through-hole in the body panel. A base portion of the seal lip projects from a resin inner holder of the grommet main body: An inclined portion projects outward from the base portion. The inclined portion has a seal projection. A plurality of deformation prevention ribs are provided in a circumferential direction with intervals therebetween to connect the front end side of the inclined portion and the resin inner holder.Type: GrantFiled: October 9, 2013Date of Patent: August 4, 2015Assignee: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Tetsuya Fujita, Yuusuke Andou
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Patent number: 9074593Abstract: A high-pressure pump has an elastic member arranged in a damper chamber between a first diaphragm and a second diaphragm. The elastic member is always in contact with both diaphragms while the high-pressure pump is operated. When the diaphragms are further vibrated due to a resonance under a situation where a frequency of the pressure pulsation of low-pressure fuel is in agreement with the characteristic frequency of the diaphragms, the elastic member restricts the deformation of the diaphragms. Therefore, the resonance of the first diaphragm and the second diaphragm can be restricted.Type: GrantFiled: February 14, 2013Date of Patent: July 7, 2015Assignee: DENSO CORPORATIONInventors: Masayuki Kobayashi, Eiji Ito, Yoshitomo Oguma, Yuusuke Andou
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Publication number: 20140196931Abstract: A grommet includes a resin inner assembled to a grommet main body composed of a rubber or elastomer, a seal lip provided in the grommet main body to press against an outer surface of a body panel, and an engagement tab provided in the resin inner to engage with a periphery of a through-hole in the body panel. A base portion of the seal lip projects from a resin inner holder of the grommet main body: An inclined portion projects outward from the base portion. The inclined portion has a seal projection. A plurality of deformation prevention ribs are provided in a circumferential direction with intervals therebetween to connect the front end side of the inclined portion and the resin inner holder.Type: ApplicationFiled: October 9, 2013Publication date: July 17, 2014Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Tetsuya FUJITA, Yuusuke ANDOU
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Publication number: 20130230417Abstract: A high-pressure pump has an elastic member arranged in a damper chamber between a first diaphragm and a second diaphragm. The elastic member is always in contact with both diaphragms while the high-pressure pump is operated. When the diaphragms are further vibrated due to a resonance under a situation where a frequency of the pressure pulsation of low-pressure fuel is in agreement with the characteristic frequency of the diaphragms, the elastic member restricts the deformation of the diaphragms. Therefore, the resonance of the first diaphragm and the second diaphragm can be restricted.Type: ApplicationFiled: February 14, 2013Publication date: September 5, 2013Applicant: DENSO CORPORATIONInventors: Masayuki KOBAYASHI, Eiji Ito, Yoshitomo Oguma, Yuusuke Andou