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公开(公告)号：US20160097358A1
公开(公告)日：2016-04-07
申请号：US14892948
申请日：2014-03-12
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Takao MIYAKE , Akiyasu MIYAMOTO , Motoyuki ABE , Kiyotaka OGURA , Takatoshi IIZUKA
IPC: F02M51/06
CPC classification number: F02M51/061 , F02M51/066 , F02M51/0671 , F02M63/0022 , F02M63/0075 , F02M2200/50
Abstract: To improve the accuracy of an injection amount by a fuel injection valve, the open/close operation of a valve body needs to be performed promptly. This requires a configuration in which, immediately after starting movement of a movable member, fluid force generated at a seat portion of the valve body is not transmitted. It is also required to suppress a cohesion phenomenon between an end surface of an anchor and an end surface of a fixed core and to prevent sticking. To solve this problem, an electromagnetic fuel injection valve has a configuration in which a valve body includes a second valve body configured to abut against an anchor at valve close, a first valve body that abuts against the anchor at valve open. The second valve abuts against a stroke stopper arranged on an inner periphery of a fixed core at a time of valve-open.
Abstract translation: 为了通过燃料喷射阀提高喷射量的精度，需要及时地进行阀体的开闭动作。 这需要这样的结构，其中在可移动部件开始移动之后，在阀体的阀座部分处产生的流体力不被传递。 还需要抑制锚固件的端面和固定芯的端面之间的内聚现象并防止粘着。 为了解决这个问题，电磁燃料喷射阀具有这样一种构造，其中阀体包括构造成在阀关闭时抵靠锚固件的第二阀体，在阀打开时抵靠锚固件的第一阀体。 在阀打开时，第二阀与设置在固定铁芯的内周上的行程挡块抵接。
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公开(公告)号：US20150377202A1
公开(公告)日：2015-12-31
申请号：US14765489
申请日：2014-01-24
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Eiji ISHII , Motoyuki ABE , Yoshihito YASUKAWA , Kiyotaka OGURA , Hideharu EHARA , Tohru ISHIKAWA
IPC: F02M63/00
CPC classification number: F02M63/0077 , F02M51/0671 , F02M61/12 , F02M61/1813 , F02M61/1833 , F02M61/184 , F02M61/1846 , F02M61/1873 , F02M61/188 , F02M63/0078
Abstract: In a fuel injection valve used in an internal combustion engine, fuel spray travel distance is shortened.There is provided a fuel injection valve including a seat member, in which the seat member includes a conical seat surface that seats fuel by coming in contact with a valve body, and inlet opening portions of a plurality of fuel injection holes on the conical seat surface, and is configured such that an axis of the injection hole connecting the centers of an inlet and an outlet of the fuel injection hole is along a plurality of different conical surfaces, and in which, in an outlet section that is configured of a plane parallel to an inlet section of the inlet opening portion of the fuel injection hole and is positioned at the outlet of the fuel injection hole, the seat member includes the injection hole in which a major axis direction of an ellipse of the outlet section has an inclination angle of greater than 0 degrees with respect to a straight line in a fuel injection direction, which is obtained by projecting the axis of the injection hole on the outlet section, and an inclination angle of a degree before being perpendicular to the straight line in the fuel injection direction.
Abstract translation: 在内燃机中使用的燃料喷射阀中，燃料喷射行驶距离缩短。 提供了一种燃料喷射阀，其包括座椅构件，座椅构件包括通过与阀体接触而抵靠燃料的锥形座面，以及锥形座表面上的多个燃料喷射孔的入口开口部 并且被构造成使得连接燃料喷射孔的入口和出口的中心的喷射孔的轴线沿着多个不同的锥形表面，并且其中在由平行的平面构成的出口部分 到燃料喷射孔的入口开口部的入口部并且位于燃料喷射孔的出口处，座椅构件包括喷射孔，其中出口部的椭圆的长轴方向具有倾斜角 相对于燃料喷射方向上的直线大于0度，其通过将喷射孔的轴线突出在出口部分上而获得，并且倾斜度 在燃料喷射方向垂直于直线之前的角度角。
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公开(公告)号：US20210310452A1
公开(公告)日：2021-10-07
申请号：US17352665
申请日：2021-06-21
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Ryo KUSAKABE , Motoyuki ABE , Tohru ISHIKAWA , Noriyuki MAEKAWA , Masahiro SOMA , Takao MIYAKE , Yasuo NAMAIZAWA
Abstract: In a fuel injection device, a driving unit structure has a magnetic aperture, in which an inner diameter is gradually enlarged toward the mover side, provided in an inner peripheral surface of the magnetic core. It is possible to reduce magnetic delay time upon valve opening from the supply of the electric current to the coil to the rise of magnetic flux and magnetic delay time upon valve closing from the stoppage of the electric current to the coil to reduction of magnetic flux, by providing a magnetic aperture in the inner peripheral surface of the magnetic core. Thus it is possible to improve the dynamic responsiveness upon valve opening and valve closing.
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公开(公告)号：US20170298882A1
公开(公告)日：2017-10-19
申请号：US15640838
申请日：2017-07-03
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yoshihito YASUKAWA , Hideharu EHARA , Tohru ISHIKAWA , Motoyuki ABE , Ryo KUSAKABE
CPC classification number: F02M51/0657 , F02D41/20 , F02M45/00 , F02M45/08 , F02M51/061 , F02M51/0625 , F02M51/066 , F02M61/04 , F02M61/10 , F02M61/20 , F02M2200/08
Abstract: A fuel injection valve includes a valve body, a coil, an inner fixed iron core that is arranged on an inner peripheral side of the coil, and an outer fixed iron core that is arranged on an outer peripheral side of the coil. The fuel injection valve also includes a movable element that is configured to be attracted to the inner fixed iron core and the outer fixed iron core, wherein the movable element is configured to be separable from the valve body and is configured to move the valve body.
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公开(公告)号：US20160230722A1
公开(公告)日：2016-08-11
申请号：US15134642
申请日：2016-04-21
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Ryo KUSAKABE , Motoyuki ABE , Yoshihito YASUKAWA , Noriyuki MAEKAWA , Takuya MAYUZUMI , Tohru ISHIKAWA
CPC classification number: F02M51/0653 , F02D41/20 , F02D2041/2013 , F02D2041/2055 , F02D2041/2058 , F02D2200/0618 , F02M45/12 , F02M51/0671 , F02M51/0685 , F02M59/366 , F02M61/1833 , F02M63/0033
Abstract: A method of controlling a fuel injection device that can control a small amount of injection is provided. A fuel injection device for use in an internal combustion engine, includes: a valve body that can open and close a fuel passage, a needle that transfers a force with the valve body, and executes valve opening/closing operation, and an electromagnet that includes a coil and a magnetic core provided as a driver for driving the needle, and a cylindrical nozzle holder disposed on an outer periphery of the magnetic core and the needle, in which a current is supplied to the coil to exert a magnetic attractive force between the magnetic core and the needle to open the valve body.
Abstract translation: 提供了一种控制能够控制少量喷射的燃料喷射装置的方法。 一种用于内燃机的燃料喷射装置，包括：能够打开和关闭燃料通道的阀体，与阀体传递力并执行阀打开/关闭操作的针，以及电磁体，其包括 设置为用于驱动针的驱动器的线圈和磁芯，以及设置在磁芯和针的外周上的圆柱形喷嘴保持架，其中电流被供应到线圈以在第一和第二磁芯之间施加磁力吸引力 磁芯和针头打开阀体。
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Patent Agency Ranking
公开(公告)号：US20160025052A1
公开(公告)日：2016-01-28
申请号：US14774925
申请日：2014-01-27
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Yoshihito YASUKAWA , Hideharu EHARA , Tohru ISHIKAWA , Kiyotaka OGURA , Motoyuki ABE , Ryo KUSAKABE , Akiyasu MIYAMOTO
CPC classification number: F02M51/0614 , F02M51/0625 , F02M51/0671 , F02M61/042 , F02M63/0012 , F02M2200/8084 , F02M2200/9069
Abstract: In an electromagnetic fuel injection which is structured such that both end surfaces of an inner circumferential iron core portion and an outer circumferential iron core portion face a movable iron core, and a non-magnetic portion made of a metal material is provided between both end surfaces, an object of the present invention is to realize a structure of the electromagnetic fuel injector in which a surface of a target object is unlikely to be affected by a heat treatment with the surface facing the movable iron core. In an electromagnetic fuel injector 1 of the present invention which is structured such that both end surfaces of an inner circumferential iron core portion 401a and an outer circumferential iron core portion 401b face a movable iron core 402, and a non-magnetic portion 401d made of a metal material is provided between both end surfaces, in order to achieve this object, heat in a target member to be heat treated is generated by applying energy to a target member's surface which is different from a target member's surface that faces the movable iron core 402. More preferably, energy is applied to a surface different from a surface on a side that faces the movable iron core 402.
Abstract translation: 在电磁燃料喷射中，内周铁心部分和外周铁芯部分的两个端面面对可动铁芯，以及由金属材料制成的非磁性部分设置在两个端面之间 本发明的目的是实现电磁燃料喷射器的结构，其中目标物体的表面不易受到与可动铁芯面对的表面的热处理的影响。 在本发明的电磁燃料喷射器1中，内周铁芯部401a和外周铁芯部401b的两端面与可动铁芯402相对，而非磁性部401d由 在两个端面之间设置有金属材料，为了达到上述目的，通过向目标构件的表面施加能量而产生热处理对象构件的热量，该目标构件的表面与目标构件的面对可动铁芯的表面不同 更优选地，能量施加到与面对可动铁芯402的一侧上的表面不同的表面。
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公开(公告)号：US20150377176A1
公开(公告)日：2015-12-31
申请号：US14766253
申请日：2014-01-24
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Ayumu HATANAKA , Ryo KUSAKABE , Motoyuki ABE , Toshihiro AONO , Teppei HIROTSU , Hideyuki SAKAMOTO , Takao FUKUDA , Hideharu EHARA , Masahiro TOYOHARA , Akira NISHIOKA , Toshio HORI , Kiyoshi AIKI
CPC classification number: F02D41/401 , F02D41/20 , F02D41/3011 , F02D2041/2006 , F02D2041/2055 , F02D2041/2058 , F02M51/061 , F02M63/0017
Abstract: An object of this disclosure is to provide a fuel injection device that can reliably detect an operation timing of a valve body, that is, a valve opening timing with high accuracy. The current of an electromagnetic valve reaches I2 at time t3, an FET 201 and an FET 221 are turned on, and a battery voltage VB is applied to the electromagnetic valve until time t5 is reached. The amount of displacement of the valve body reaches a target amount of control lift at time t4 between time t3 and time t5, that is, a movable core 304 comes into contact with a fixed core 301. The detection of the valve opening timing is performed during the period from time t3 to time t5.
Abstract translation: 本公开的目的在于提供一种能够可靠地检测阀体的动作正时，即高精度的开阀定时的燃料喷射装置。 在时间t3，电磁阀的电流达到I2，FET201和FET221导通，并且电池电压VB被施加到电磁阀直到时刻t5。 在时刻t3〜时刻t5之间的时刻t4，即可动铁心304与固定铁心301接触，阀体的位移量达到目标控制升程量。进行开阀定时的检测 在时间t3到时间t5。
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公开(公告)号：US20150361938A1
公开(公告)日：2015-12-17
申请号：US14765455
申请日：2014-01-24
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Kiyotaka OGURA , Hideharu EHARA , Motoyuki ABE , Eiji ISHII , Masanori MIFUJI , Atsushi TAKAOKU , Takao MIYAKE
CPC classification number: F02M61/162 , F02M51/0664 , F02M51/0671
Abstract: An object of the invention is to provide a fuel injection valve that applies a swirl to an upstream side of a seat section to shorten spray penetration.When flows into injection hole entries are indicated by arrows 101a to 106a and injection hole exit directions are indicated by arrows 201 to 206, an angle α defined by the inflow direction 101a and the exit direction 201 of an injection hole 71 can be increased. Ina method for applying the twisted angle α, a side groove 15a on an outer peripheral side of a guide member 12a is set to be accompanied with a twist with respect to an axis O1. Furthermore, a flow passage area of the side groove 15a is set smaller than a flow passage area on an upstream side of the guide member 12a and is also set larger than a flow passage area of a seat section 7B that is constructed by a gap between a valve body 7 and an orifice cup 7.
Abstract translation: 本发明的目的是提供一种燃料喷射阀，其向座部的上游侧施加涡流以缩短喷雾穿透。 当流入喷射孔入口时，箭头101a至106a表示出喷射孔出射方向，箭头201至206表示喷射孔71的流入方向101a和出射方向201所限定的角度α。 用于施加扭转角度α的方法，将引导构件12a的外周侧上的侧槽15a设置为相对于轴线O1的扭转。 此外，侧槽15a的流路面积被设定为小于引导构件12a的上游侧的流路面积，并且也设定为大于由座部7B的流路面积构成的座部7B的流路面积， 阀体7和孔口杯7。
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公开(公告)号：US20150354515A1
公开(公告)日：2015-12-10
申请号：US14763029
申请日：2014-01-10
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Yoshihito YASUKAWA , Hideharu EHARA , Tohru ISHIKAWA , Motoyuki ABE , Ryo KUSAKABE
CPC classification number: F02M51/0657 , F02D41/20 , F02M45/00 , F02M45/08 , F02M51/061 , F02M51/0625 , F02M51/066 , F02M61/04 , F02M61/10 , F02M61/20 , F02M2200/08
Abstract: A fuel injection valve having a variable stroke mechanism is constructed. A valve body provided to be slidable; a first movable element for cooperating with the valve body; an inner fixed iron core provided at a position to oppose a second movable element; an outer fixed iron core; and a coil are included. A lift amount of the second movable element is set larger than a lift amount of the first movable element, and a portion of the second movable element is projected into the first movable element. In this way, large and small lifts are constituted by using a difference between magnetic attractive forces that are generated in the first movable element and the second movable element by a current supplied to the coil.
Abstract translation: 具有可变冲程机构的燃料喷射阀构成。 设置为可滑动的阀体; 用于与阀体配合的第一可移动元件; 内固定铁芯，设置在与第二可移动元件相对的位置; 外固定铁芯; 并包括线圈。 第二可移动元件的提升量被设定为大于第一可移动元件的提升量，并且第二可移动元件的一部分突出到第一可移动元件中。 以这种方式，通过使用通过提供给线圈的电流在第一可移动元件和第二可移动元件中产生的吸引力之间的差异来构成大而小的电梯。
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公开(公告)号：US20190331052A1
公开(公告)日：2019-10-31
申请号：US16505082
申请日：2019-07-08
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Ryo KUSAKABE , Motoyuki ABE , Toshihiro AONO , Takashi OKAMOTO
Abstract: The purpose of the present invention is to detect variations between the quantities of fuel injected into cylinders by fuel injection devices and correct the fuel injection quantity variation while minimizing the computational load on a drive device and the level of performance required of a pressure sensor. A drive device for fuel injection devices according to the present invention performs control wherein movable valves are driven so that predetermined quantities of fuel are injected by applying, for the duration of a set energization time, a current that will reach an energization current to solenoids of a plurality of fuel injection devices which open/close fuel flow paths. The drive device is characterized in that the set energization time or energization current is corrected on the basis of a pressure detection value from a pressure sensor that is attached to a fuel supply pipe disposed upstream of the plurality of fuel injection devices.
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