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公开(公告)号：EP3263885A1
公开(公告)日：2018-01-03
申请号：EP16743048.7
申请日：2016-01-08
发明人： MIYAMOTO Akiyasu , ABE Motoyuki , YASUKAWA Yoshihito , MIYAKE Takao , IIZUKA Akira , OGURA Kiyotaka
CPC分类号： F02M51/0625 , F02M51/06 , F02M51/066 , F02M51/0685 , F02M61/10 , F02M61/16 , F02M61/166 , F02M61/18 , F02M61/205 , F02M2200/00 , F02M2200/26 , F02M2200/306 , F02M2200/9015
摘要： An object of the present invention is to provide a fuel injection valve configured to suppress bouncing of a valve element that is caused as a result of the valve element being rendered elastic when the valve element collides with a valve seat.
The fuel injection valve of the present invention includes the valve element configured to come into contact with the valve seat for closing an injection hole and to separate from the valve seat for unclosing the injection hole, an elastic member urging the valve element toward the valve seat, a movable iron core disposed to be in and out of contact with the valve element, a fixed iron core disposed to be opposed to the movable iron core, and a coil configured to generate electromagnetic force for moving the movable iron core. At least one lower rigidity part having reduced rigidity per axial unit length is provided between a surface where urging force of the elastic member is transmitted to the valve element and a seat part whereat the valve element comes into contact with and separates from the valve seat.摘要翻译： 本发明的目的在于提供一种燃料喷射阀，其构造成抑制当阀元件与阀座碰撞时由于阀元件弹性而引起的阀元件的弹跳。 本发明的燃料喷射阀包括：阀元件，该阀元件被构造成与用于关闭喷射孔的阀座接触并且与用于打开喷射孔的阀座分离;弹性构件，其将阀元件朝向阀座 可移动铁芯，其设置成与阀元件接触和不接触;固定铁芯，其设置为与可移动铁芯相对;以及线圈，其被配置为产生用于移动可移动铁芯的电磁力。 在弹性部件的作用力传递至阀体的面与阀体与阀座接触分离的座部之间，设置至少一个每轴单位长度的刚性降低的下部刚性部。
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公开(公告)号：EP3315761A1
公开(公告)日：2018-05-02
申请号：EP16817746.7
申请日：2016-06-17
发明人： YASUKAWA Yoshihito , MIYAMOTO Akiyasu , MIYAKE Takao , IIZUKA Takatoshi , SUGAYA Masashi , OGURA Kiyotaka , ABE Motoyuki
CPC分类号： F02M63/0075 , F02M47/027 , F02M51/06 , F02M51/0675 , F02M63/0017 , F16K27/029 , F16K31/06 , F16K31/0675 , F16K31/0689 , H01F3/00
摘要： An object is to make it possible to stably perform a valve opening operation of a valve element even when an injection interval is shortened.
A solenoid valve of the present invention is provided with a valve element that abuts against and separates from a valve seat to seal fuel; a movable iron core capable of being separated from the valve element; and a fixed iron core arranged opposed to the movable iron core. The solenoid valve also includes: a first spring member that energizes the valve element toward a side of the valve seat; a second spring member that energizes the movable iron core toward the fixed iron core; and a stopper part disposed on the side of the valve seat with respect to the movable iron core, and arranged with the movable iron core via a gap in a displacement direction in a valve closed state. In the solenoid valve, the gap is set such that the movable iron core collides with the stopper part when being displaced in the valve closing direction after the valve element is opened.摘要翻译： 目的是即使在缩短喷射间隔时也能够稳定地进行阀芯的开阀动作。 本发明的电磁阀具备与阀座抵接而分离而密封燃料的阀芯， 能够与阀体分离的可动铁芯， 以及与可动铁芯相对配置的固定铁芯。 电磁阀还包括：第一弹簧构件，该第一弹簧构件朝向阀座的一侧激励阀元件; 第二弹簧构件，其将可动铁芯向固定铁芯通电; 以及相对于可动铁芯配置在阀座侧的止动部，在阀关闭状态下与可动铁芯经由间隙沿位移方向配置。 在电磁阀中，间隙被设定为使得当阀元件打开之后当可动铁芯在闭阀方向上移位时可动铁芯与止动部件碰撞。
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3.发明公开FUEL INJECTION VALVE, CONTROL DEVICE FOR FUEL INJECTION VALVE, AND CONTROL METHOD 审中-公开燃油喷射阀，燃油喷射阀控制装置及控制方法
公开(公告)号：EP3267018A1
公开(公告)日：2018-01-10
申请号：EP16758844.1
申请日：2016-02-26
发明人： ITAYA Takaki , KUSAKABE Ryo , YAMAOKA Shirou , OGURA Kiyotaka
CPC分类号： F02D41/402 , F02D41/02 , F02D41/0255 , F02D41/06 , F02D41/08 , F02D41/20 , F02D41/3023 , F02D41/34 , F02D45/00 , F02P5/152 , Y02T10/44
摘要： The purpose of the present invention is to provide a control means which, with respect to injection control of a fuel injection valve, reduces deviation between an injection quantity of fuel injected by the fuel injection valve and a target value, the deviation being caused due to a pressure in a combustion chamber, as an injection timing in a compression stroke of an engine is retarded.
The present invention pertains to a fuel injection valve that performs a plurality of injections in one engine cycle, and performs control in such a manner that injection pulse signals 603 and 604 are transmitted to a drive circuit, and from the drive circuit for the fuel injection valve that outputs drive current waveforms 605, 606 for fuel injection, the injection pulse signal 612 in the compression stroke when the injection timing is retarded is shortened.摘要翻译： 本发明的目的是提供一种控制装置，该控制装置相对于燃料喷射阀的喷射控制减小由燃料喷射阀喷射的燃料的喷射量与目标值之间的偏差，该偏差是由于 随着发动机的压缩冲程中的喷射正时的延迟，燃烧室内的压力被减缓。 本发明涉及一个燃料喷射阀，其在一个发动机循环中执行多次喷射，并且以喷射脉冲信号603和604被传输到驱动电路并且从用于燃料喷射的驱动电路 输出用于燃料喷射的驱动电流波形605,606的阀，缩短喷射正时延迟时的压缩冲程中的喷射脉冲信号612。
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公开(公告)号：EP3263872A1
公开(公告)日：2018-01-03
申请号：EP16755144.9
申请日：2016-02-01
发明人： KUSAKABE Ryo , IIZUKA Takatoshi , MIYAKE Takao , SUGAYA Masashi , OGURA Kiyotaka , YAMAOKA Shirou
CPC分类号： F02D41/20 , F02D41/26 , F02D41/3064 , F02D41/307 , F02D2041/2041 , F02D2041/2051 , F02D2041/2058 , F02M51/00 , F02M51/06 , F02M51/061 , F02M61/10
摘要： The purpose of the present invention is to provide a drive device that improves the precision of injection quantities by stabilizing the behavior of a valve body 214 under the condition that a valve body reaches a height position lower than a maximum height position and making the injection pulse width and the injection quantity gradient small. The present invention is a drive device for a fuel injection device for use in an internal combustion engine, wherein: the fuel injection device is provided with a valve body 214 that can open and close a fuel passage, a needle 202 that activates an opening and closing valve by transmitting power between itself and the valve body 214, and an electromagnet that comprises a solenoid 205 and a fixed core 207 provided as drive means for the needle 202, and a cylindrical nozzle holder 201 disposed on the outer peripheral side of the needle 202; and the drive device 150 controls a drive current flowing to the coil so as to decrease from the maximum drive current to a first drive current 610 that is lower than the maximum drive current before the valve body 214 reaches the maximum height position so that the valve body 214 reaches a height position lower than the maximum height position.
摘要翻译： 本发明的目的在于提供一种驱动装置，该驱动装置通过在阀体到达比最高位置低的高度位置并且使喷射脉冲变得稳定的状态下稳定阀体214的动作来提高喷射量的精度 宽度和注入量梯度小。 本发明是一种用于内燃机的燃料喷射装置的驱动装置，其中：燃料喷射装置设置有能够打开和关闭燃料通道的阀体214，启动开口的针202以及 通过在其本体与阀体214之间传递动力而开闭阀，以及具有螺线管205和作为针202的驱动单元而设置的固定芯207的电磁铁，以及配置在该针的外周侧的筒状的喷嘴支架201 202; 并且驱动装置150将流过线圈的驱动电流从最大驱动电流减小到低于阀体214达到最大高度位置之前的最大驱动电流的第一驱动电流610，使得阀 主体214到达比最大高度位置低的高度位置。
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公开(公告)号：EP3006720A1
公开(公告)日：2016-04-13
申请号：EP14801701.5
申请日：2014-03-12
IPC分类号： F02M51/06
CPC分类号： F02M51/061 , F02M51/066 , F02M51/0671 , F02M63/0022 , F02M63/0075 , F02M2200/50
摘要： To improve accuracy of injection amount by a fuel injection valve, open/close operation of a valve body needs to be performed promptly. This needs 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. At the same time, it is required to suppress occurrence of the cohesion phenomenon between an end surface of an anchor and an end surface of a fixed core, and then, to prevent sticking.
To solve the above-described problem, an electromagnetic fuel injection valve of the present invention has a configuration in which a valve body includes a second valve body configured to abut against an anchor at a time of valve-close, a first valve body that abuts against the anchor in a course of valve-open. In this configuration, the second valve abuts against a stroke stopper arranged on an inner periphery of a fixed core at a time of valve-open. In this configuration, the lengths of first valve and the second valve are prescribed such that a gap can be obtained without causing the fixed core and the anchor to abut directly against each other at the time of valve-open, and plating for the fixed core and the anchor is discontinued.摘要翻译： 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。 这需要这样的构造，其中，在可移动构件开始运动之后，在阀体的阀座部分处产生的流体力不被传递。 同时，需要抑制锚的端面与固定芯的端面之间的内聚现象的发生，防止粘着现象。 为了解决上述问题，本发明的电磁燃料喷射阀具有这样的结构，其中阀体包括构造成在阀关闭时抵靠锚固件的第二阀体，邻接于第二阀体的第一阀体 在阀门打开的过程中对着锚。 在这种构造中，第二阀在阀打开时抵靠配置在固定铁芯的内周上的行程限位器。 在这种结构中，第一阀和第二阀的长度被规定为使得在阀打开时不会使固定芯和锚直接抵接，并且固定芯的电镀可以获得间隙 并停止锚。
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公开(公告)号：EP3252302B1
公开(公告)日：2019-10-30
申请号：EP16743079.2
申请日：2016-01-12
发明人： MIYAKE Takao , NAKAI Atsushi , OGURA Kiyotaka , IIZUKA Akira
IPC分类号： F02M61/18
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公开(公告)号：EP3343079A1
公开(公告)日：2018-07-04
申请号：EP16838992.2
申请日：2016-07-25
CPC分类号： F02M51/0685 , F02M51/06 , F02M51/0621 , F02M51/0682 , F02M61/10 , F02M61/168 , F16K31/06 , F16K31/0651 , H01F7/16
摘要： Provided is an electromagnetic valve capable of stabilizing an injection amount even when injection is performed while an intermediate member continues to be displaced after valve closing and returns to a closed valve standby state.
For that purpose, a valve body 303 opens or closes a flow path. A movable iron core 404 moves the valve body 303 in a valve opening direction using a magnetic attraction force. An intermediate member 414 forms a preliminary stroke gap (g1) between the movable iron core 404 and the valve body 303 in a closed valve state. A stopper portion 410c collides with the intermediate member 414 when the intermediate member 414 moves in a direction in which the preliminary stroke gap (g1) is reduced.-
公开(公告)号：EP3252302A1
公开(公告)日：2017-12-06
申请号：EP16743079.2
申请日：2016-01-12
发明人： MIYAKE Takao , NAKAI Atsushi , OGURA Kiyotaka , IIZUKA Akira
IPC分类号： F02M61/18
摘要： Recent exhaust gas regulation requires reduction of an amount and quantity of particulate matter included in an exhaust gas, and a normal maximum fuel pressure may be increased to approximately 35MP. When the normal maximum fuel pressure is 35 MPa, a fuel injection valve is required to work for example at a pressure up to 45 MPa. In such a condition, a fluid force may exceed a valve opening force depending on a seat diameter, and a needle valve cannot be kept open and closed, when opening thereof is required.
In order to solve the above problems, a fuel injection valve according to the present invention includes a valve seat portion, a valve body which is seated on or separated from the valve seat portion, an injection hole which is formed on a downstream side from the valve seat portion, and a guide portion which is formed on an upstream side from the valve seat portion seating a valve body seat portion of the valve body to guide a guided portion on a downstream side of the valve body, in which the valve seat portion is formed to have a dimension in a crossing direction crossing an axial direction of 0.4 to 0.8 times a dimension of the guide portion in the crossing direction.摘要翻译： 最近的废气调节要求减少排气中包含的颗粒物质的量和数量，并且正常的最大燃料压力可以增加到约35MP。 当正常最大燃料压力为35MPa时，燃料喷射阀需要例如在高达45MPa的压力下工作。 在这种状态下，流体力可能会超过阀座的开启力，并且当需要打开时，针阀不能保持打开和关闭。 为了解决上述问题，根据本发明的燃料喷射阀包括：阀座部分;阀座，该阀座位于阀座部分上或与阀座部分分离;喷射孔，形成在阀座部分的下游侧 阀座部以及引导部，所述引导部形成在所述阀座部的上游侧，所述引导部就座于所述阀体的阀体座部，以在所述阀体的下游侧引导被引导部，其中，所述阀座部 形成为具有在与交叉方向上的引导部分的尺寸的0.4至0.8倍相交的与轴向方向交叉的交叉方向上的尺寸。
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