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公开(公告)号：US20180238282A1
公开(公告)日：2018-08-23
申请号：US15752278
申请日：2016-06-21
Applicant: DENSO CORPORATION
Inventor： Shinsuke YAMAMOTO , Shinobu OIKAWA , Tomoji MATSUKAWA , Moriyasu GOTOH , Eiji ITOH
CPC classification number: F02M61/10 , F02M51/061 , F02M51/0671 , F02M51/0675 , F02M51/0685 , F02M61/1886 , F02M61/20
Abstract: A movable core is movable relative to a needle main body of a needle. A stationary core is placed on an opposite side of the movable core, which is opposite from a valve seat. A spring is operable to urge the needle and the movable core toward the valve seat. A spring seat is shaped into a ring form and is placed on a radially outer side of the needle main body at the valve seat side of the movable core. The spring is placed between the movable core and the spring seat and is operable to urge the movable core toward the stationary core. A guide is placed on the valve seat side of the movable core in an inside of a housing. An inner wall of the guide is slidable relative to an outer wall of the spring seat to guide reciprocation of the needle.
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公开(公告)号：US20180245557A1
公开(公告)日：2018-08-30
申请号：US15749909
申请日：2016-06-21
Applicant: DENSO CORPORATION
Inventor： Shinobu OIKAWA , Tomoji MATSUKAWA , Shinsuke YAMAMOTO , Moriyasu GOTOH , Eiji ITOH
CPC classification number: F02M51/0675 , F02M51/06 , F02M51/061 , F02M51/0653 , F02M51/0671 , F02M61/10 , F02M61/18
Abstract: A gap forming member has: a plate portion that is placed on an opposite side of a needle, which is opposite from a valve seat; and an extending portion that is formed to extend from the plate portion toward the valve seat, while an opposite end part of the extending portion, which is opposite from the plate portion, is contactable with a movable core. A first wall surface of the gap forming member, which is a wall surface opposed to an outer wall of the flange, is slidable relative to the outer wall of the flange, and a second wall surface of the gap forming member, which is a wall surface opposed to an inner wall of a stationary core, forms a radial gap, which is a gap in a radial direction, between the second wall surface and the inner wall of the stationary core.
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公开(公告)号：US20130276929A1
公开(公告)日：2013-10-24
申请号：US13860958
申请日：2013-04-11
Applicant: DENSO CORPORATION
Inventor： Shinobu OIKAWA
IPC: F16L55/04
CPC classification number: F16L55/04 , F02M59/06 , F02M59/102 , F02M2200/26 , F02M2200/315 , F16L55/053
Abstract: A damper device includes a first diaphragm having a first peripheral part, a second diaphragm having a second peripheral part, a first support portion disposed on the opposite side from the second peripheral part with respect to the first peripheral part, and a second support portion disposed on the opposite side from the first peripheral part with respect to the second peripheral part. The first peripheral part and the second peripheral part are supported between the first support portion and the second support portion. Radially outer sections of the first peripheral part, the second peripheral part, the first support portion, and the second support portion are integrally welded with each other.
Abstract translation: 阻尼器装置包括具有第一周边部分的第一膜片，具有第二周边部分的第二膜片，相对于第一周边部分设置在与第二周边部分相反的一侧上的第一支撑部分， 在第一周边部分相对于第二周边部分的相对侧。 第一周边部分和第二周边部分被支撑在第一支撑部分和第二支撑部分之间。 第一周边部分，第二周边部分，第一支撑部分和第二支撑部分的径向外部部分彼此一体地焊接。
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公开(公告)号：US20180257006A1
公开(公告)日：2018-09-13
申请号：US15542525
申请日：2016-01-13
Applicant: DENSO CORPORATION
Inventor： Norihiro HAYASHI , Shinobu OIKAWA , Kiyoshi NAGATA , Tetsuro OKAZONO
CPC classification number: B01D29/114 , B01D29/0054 , B01D35/02 , B01D35/0273 , B01D2201/32 , B01D2201/60 , F02M37/10 , F02M37/22 , F02M37/50
Abstract: A suction filter which filters fuel inside a fuel tank of a vehicle to let a fuel pump draw filtered fuel into an inlet port includes a filter element disposed inside the fuel tank and filtering stored fuel stored in the fuel tank by allowing the stored fuel to pass through to an inner space, and a partition wall element disposed in a posture with which to divide the inner space to a first space where filtered fuel filtered at the filter element flows in and a second space where the inlet port into which the filtered fuel is drawn opens, and allowing the filtered fuel in the first space to pass through to the second space. The partition wall element is provided in a form of a partition film dividing the inner space to the first space on an upper side and the second space on a lower side.
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公开(公告)号：US20180142656A1
公开(公告)日：2018-05-24
申请号：US15580032
申请日：2016-05-12
Applicant: DENSO CORPORATION
Inventor： Shinobu OIKAWA , Eiji MIMURA
CPC classification number: F02M61/18 , F02M51/06 , F02M51/0614 , F02M51/0625 , F02M51/0682 , F02M61/10 , F02M61/12 , F02M61/16 , F16K31/06 , H01F7/121 , H01F7/1607
Abstract: An inside projection is formed in one piece with a second tubular member and projects in a tubular form toward a third tubular member, and an outside projection is formed in one piece with the third tubular member and projects in a tubular form toward the second tubular member, while an inner wall of the outside projection is engaged with an outer wall of the inside projection. Another inside projection is formed in one piece with the second tubular member and projects in a tubular form toward a first tubular member, and another outside projection is formed in one piece with the first tubular member and projects in a tubular form toward the second tubular member, while an inner wall of the outside projection is engaged with an outer wall of the inside projection.
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Patent Agency Ranking
公开(公告)号：US20160069333A1
公开(公告)日：2016-03-10
申请号：US14943108
申请日：2015-11-17
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Shinobu OIKAWA , Hirokuni TOMITA , Takehiko KATO
CPC classification number: F04B7/0076 , F04B1/0452 , F04B7/02 , F04B19/22 , F04B53/1082 , F16K31/0693
Abstract: Between a movable core chamber and a fuel supply passage, a needle guide slidably supports a needle fixed to a movable core. The needle guide has a communication hole which fluidly connects the movable core chamber and the fuel supply passage. An opening sectional area of the communication hole is defined in such a manner that a fuel discharged amount decreases as an energization start time of a coil is delayed. In a suction stroke, it is restricted that the movable core and the needle bounce toward the fixed core after the needle biases a suction valve toward a stopper by means of a biasing force of a second spring. A relationship between the energization start time of the coil and the fuel discharged amount is properly maintained, so that the fuel discharged amount of the high-pressure pump can be controlled correctly.
Abstract translation: 在可动核心室和燃料供给通道之间，针引导件可滑动地支撑固定到可动芯的针。 针引导件具有将可动核心室和燃料供给通路流体连接的连通孔。 连通孔的开口截面积被限定为随着线圈的通电开始时间延迟，燃料排出量减少。 在吸入行程中，限制了针在针上通过第二弹簧的作用力朝向止动件偏压吸入阀之后，可动芯和针向固定芯反弹。 适当地保持线圈的通电开始时间与燃料排出量之间的关系，从而能够正确地控制高压泵的燃料排出量。
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公开(公告)号：US20140182451A1
公开(公告)日：2014-07-03
申请号：US14197435
申请日：2014-03-05
Applicant: DENSO CORPORATION
Inventor： Shinobu OIKAWA , Yoshinori Yamashita , Katsunori Furuta , Masayuki Kobayashi , Shigeto Tsuge
IPC: F04B19/22
CPC classification number: F04B19/22 , F02D41/3863 , F02M59/46 , F02M63/005 , F02M69/54 , F16K15/026 , Y10T137/7738 , Y10T137/7837 , Y10T137/7938
Abstract: A valve member of a pressure relief valve has a shaft portion, a pressure receiving portion, and a guide portion, wherein the valve member is axially movable in a fuel return passage. When a forward end of the shaft portion is seated on a valve seta, the fuel return passage is closed, while the shaft portion is separated from the valve seat the fuel return passage is opened. A notched portion is formed at an outer wall of the guide portion to thereby form an outer-surface passage. A fuel inlet port is formed in the valve member for communicating a fuel inlet chamber to the fuel return passage at a downstream side of the valve member.
Abstract translation: 泄压阀的阀构件具有轴部，压力接收部和引导部，其中，阀构件在燃料返回通路中可轴向移动。 当轴部的前端位于阀组件上时，燃料返回通道关闭，而轴部分与阀座分离，燃料返回通道打开。 在引导部分的外壁处形成切口部分，从而形成外表面通道。 在阀构件中形成燃料入口，用于在阀构件的下游侧将燃料入口室连通到燃料返回通道。
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公开(公告)号：US20190242347A1
公开(公告)日：2019-08-08
申请号：US16388929
申请日：2019-04-19
Applicant: DENSO CORPORATION
Inventor： Shinobu OIKAWA , Tomoji MATSUKAWA , Shinsuke YAMAMOTO , Moriyasu GOTOH , Eiji ITOH
CPC classification number: F02M51/0675 , F02M51/06 , F02M51/061 , F02M51/0653 , F02M51/0671 , F02M61/10 , F02M61/18
Abstract: A gap forming member has: a plate portion that is placed on an opposite side of a needle, which is opposite from a valve seat; and an extending portion that is formed to extend from the plate portion toward the valve seat, while an opposite end part of the extending portion, which is opposite from the plate portion, is contactable with a movable core. A first wall surface of the gap forming member, which is a wall surface opposed to an outer wall of the flange, is slidable relative to the outer wall of the flange, and a second wall surface of the gap forming member, which is a wall surface opposed to an inner wall of a stationary core, forms a radial gap, which is a gap in a radial direction, between the second wall surface and the inner wall of the stationary core.
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公开(公告)号：US20190145364A1
公开(公告)日：2019-05-16
申请号：US16096442
申请日：2017-03-30
Applicant: DENSO CORPORATION
Inventor： Shinichiro KOSHIMOTO , Masaharu NAKAOKA , Shinobu OIKAWA
Abstract: A housing-includes a pressurizing chamber. A plunger is moved to increase and decrease a volume of the pressurizing chamber, so that the plunger can pressurize the fuel in the pressurizing chamber. A fuel chamber forming portion is placed on a radially outer side of the plunger and forms a fuel chamber that is communicated with the pressurizing chamber. A pulsation damper is placed in an inside of the fuel chamber and is operable to reduce pressure pulsation of the fuel in the fuel chamber. Fixable portions are placed on a radially outer side of the plunger while each of the fixable portions includes a receiving through-hole. The fixable portions are fixed to an engine with bolts, which are provided to correspond with the receiving through-holes, respectively. The fuel chamber forming portion is displaced from axes of the receiving through-holes.
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公开(公告)号：US20170254304A1
公开(公告)日：2017-09-07
申请号：US15509323
申请日：2015-09-14
Applicant: DENSO CORPORATION
Inventor： Shinsuke YAMAMOTO , Shinobu OIKAWA
IPC: F02M51/06
CPC classification number: F02M51/0653 , F02M51/06 , F02M51/061 , F02M51/066 , F02M61/042
Abstract: In a fuel injection valve, when a regulating unit provided in a needle abuts against a movable core, a gap is defined between a flange portion end face of a flange portion and a movable core first end face of the movable core. With the above configuration, when a coil develops a magnetic field, because the movable core abuts against a flange portion while accelerating in a valve-opening direction, a relatively large force is exerted on the needle in the valve-opening direction. The needle is further moved in the valve-opening direction by an urging force of a second spring after the movable core has abutted against the fixed core. With the above configuration, a lift quantity of the needle is longer than a distance by which the movable core moves until the movable core abuts against a fixed core abutting portion since the movable core abuts against the flange portion. As a result, the lift quantity of the needle can be increased without any increase in the electric power to be supplied to the coil.
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