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    FUEL INJECTION VALVE
    11.
    发明申请
    FUEL INJECTION VALVE 审中-公开

    公开(公告)号：US20170218907A1

    公开(公告)日：2017-08-03

    申请号：US15500977

    申请日：2015-07-17

    Applicant: DENSO CORPORATION

    Inventor： Tomoji MATSUKAWA ,  Eiji ITOH ,  Shinsuke YAMAMOTO ,  Kouichi MOCHIZUKI

    IPC: F02M61/16 ,  F02M51/06 ,  F02M63/00

    CPC classification number: F02M61/166 ,  F02M51/0671 ,  F02M51/0682 ,  F02M51/0685 ,  F02M63/0075 ,  F02M2200/50

    Abstract: A fuel injection valve includes: a circular plate portion that is abuttable against an end surface of a needle opposite from a valve seat while the needle being provided to open and close an injection hole upon lifting and seating of the needle relative to the valve seat; and a tubular portion that extends from the circular plate portion toward the valve seat and has an end part, which is opposite from the circular plate portion and is abuttable against a movable core second contact surface of a movable core opposite from the valve seat. In a state where the circular plate portion abuts against the needle, and the tubular portion abuts against the movable core, a gap is formed between a flange member end surface of a flange of the needle and a movable core first contact surface of the movable core opposite from the valve seat.

    FUEL INJECTION VALVE
    12.
    发明申请
    FUEL INJECTION VALVE 有权
    燃油喷射阀

    公开(公告)号：US20150053182A1

    公开(公告)日：2015-02-26

    申请号：US14458624

    申请日：2014-08-13

    Applicant: DENSO CORPORATION

    Inventor： Keigo OOHATA ,  Eiji ITOH

    IPC: F02M61/14 ,  F02M61/18

    CPC classification number: F02M61/14 ,  F02M2200/858

    Abstract: A fuel injection valve is attached to an engine and to have an annular seal material attached thereon. The seal material is attached to a first reduced diameter part. In a use state where a body is inserted in an attachment hole formed at a predetermined position of the engine and a gas pressure that is equal to or higher than a predetermined pressure is applied to the seal material from its nozzle hole-side, the seal material is pressed against a first tapered part by the gas pressure to be compressively deformed, and a clearance between an inner peripheral surface of the attachment hole and an outer peripheral surface of the body is sealed with a compressively-deformed part of the seal material. A taper angle of the first tapered part is set in a range from 10 degrees to 20 degrees.

    Abstract translation: 燃料喷射阀安装在发动机上并具有安装在其上的环形密封材料。 密封材料附接到第一缩径部分。 在将主体插入到形成在发动机的预定位置的安装孔中并且从其喷嘴孔侧向密封材料施加等于或高于预定压力的气体压力的使用状态下，密封件 材料通过压力变形的气体压力被压靠第一锥形部分，并且安装孔的内周表面与主体的外周表面之间的间隙被密封材料的压缩变形部分密封。 第一锥形部的锥角设定在10度〜20度的范围内。

    FUEL INJECTION DEVICE
    13.
    发明申请
    FUEL INJECTION DEVICE 审中-公开

    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

    IPC: F02M51/06 ,  F02M61/18 ,  F02M61/10

    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.

    HIGH-PRESSURE PUMP
    16.
    发明申请
    HIGH-PRESSURE PUMP 审中-公开
    高压泵

    公开(公告)号：US20150132165A1

    公开(公告)日：2015-05-14

    申请号：US14539498

    申请日：2014-11-12

    Applicant: DENSO CORPORATION

    Inventor： Hiroshi INOUE ,  Eiji ITOH

    IPC: F02M59/44 ,  F02M37/04

    CPC classification number: F02M59/442 ,  F02M37/043 ,  F02M59/025 ,  F02M59/366 ,  F02M59/44 ,  F02M59/48 ,  F02M2200/315 ,  F02M2200/803 ,  F02M2200/8061

    Abstract: A high-pressure pump includes a pump body, a cylinder, a plunger, and a plug. The pump body has a fuel chamber therein into which fuel is supplied. The cylinder is disposed inside the pump body and having one end immediately adjacent to the fuel chamber. The cylinder has an inner threaded portion formed on an inner wall of the cylinder at the one end. The plunger is disposed inside the cylinder and is reciprocally movable in an axial direction to change a volume of a pressurizing chamber within which the fuel supplied from the fuel chamber is pressurized. The plug is screwed into the inner threaded portion of the cylinder from the fuel chamber in the axial direction and closing the one end of the cylinder. The plug has an end surface that faces an end surface of the plunger and defines the pressurizing chamber together with the end surface of the plunger. The end surface of the plug is parallel to the end surface of the plunger.

    Abstract translation: 高压泵包括泵体，气缸，柱塞和塞子。 泵体内有一个燃料室，供应燃料。 气缸设置在泵体的内部，其一端紧邻燃料室。 气缸具有在一端形成在气缸的内壁上的内螺纹部分。 柱塞设置在气缸内部并且可沿轴向往复运动，以改变其中从燃料室供应的燃料被加压的加压室的体积。 塞子沿轴向从燃料室旋入汽缸的内螺纹部分，并关闭汽缸的一端。 插头具有面向柱塞的端面的端面，并与柱塞的端面一起限定加压室。 塞子的端面平行于柱塞的端面。

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