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61.发明公开公开(公告)号：US20230243326A1
公开(公告)日：2023-08-03
申请号：US18010500
申请日：2021-05-18
申请人： Hitachi Astemo, Ltd.
CPC分类号： F02M61/168 , B23P11/02 , F02M61/10 , F02M2200/8061
摘要： A method for manufacturing a coupling body includes a press-fitting step of press-fitting a coupling shaft-shaped portion of a valve member into a pit portion of a cap. A peripheral surface of a high-hardness component having a relatively high hardness of an outer peripheral surface of the coupling shaft-shaped portion of the valve member and an inner peripheral surface of the pit portion of the cap includes: a first-stage cylindrical surface having a diameter difference with respect to a peripheral surface of a low-hardness component; and a second-stage cylindrical surface positioned closer to a rear side in a press-fitting direction than the first-stage cylindrical outer peripheral surface and protruding in a radial direction to form a step with respect to the first-stage cylindrical surface. The press-fitting step includes: a first stage at which the peripheral surface of the low-hardness component is deformed in a plastic region by the first-stage cylindrical surface; and a second stage at which the peripheral surface subjected to the deformation in the plastic region is deformed by the second-stage cylindrical surface in an amount smaller than the deformation amount at the first stage.
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公开(公告)号：US20190017480A1
公开(公告)日：2019-01-17
申请号：US15775206
申请日：2016-10-31
CPC分类号： F02M59/366 , F02M63/0019 , F02M63/0071 , F02M2200/8061 , F02M2200/8084 , F02M2200/9069 , F04B7/0076 , F04B53/1082 , F16K31/0675 , H01F3/00 , H01F7/127 , H01F7/1607
摘要： An electromagnetic actuator for a valve mechanism, in particular in a common rail system of a motor vehicle, comprising an armature tappet for actuating a valve element located in a channel, and comprising a pole core, the armature tappet being movable axially along a central axis of the actuator when an excitation coil of an excitation system is energized. The pole core therefore has a tubular shape and has a circumferential flange in the area of the pole core end facing the channel, said flange extending inward in relation to the central axis.
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公开(公告)号：US20180149125A1
公开(公告)日：2018-05-31
申请号：US15573527
申请日：2015-06-30
申请人： CUMMINS INC.
发明人： Darren Ting , Patrick M. Pierz
CPC分类号： F02M53/046 , F01P3/02 , F01P3/16 , F01P2003/024 , F02B19/108 , F02B19/12 , F02B19/18 , F02B2019/006 , F02M21/0215 , F02M21/0278 , F02M53/043 , F02M57/06 , F02M61/14 , F02M2200/8061 , F02M2200/858 , F02M2200/9053 , Y02T10/125 , Y02T10/32
摘要： An apparatus and method are disclosed for an injector assembly including an injector tip having a prechamber, such as a permanent, passive prechamber (PPPC), and a nozzle combustion shield (NCS) to mitigate pre-ignition events, such as knocking, caused by overheating of the prechamber. The NCS has a thermal conductivity greater than the injector tip. The NCS optionally includes a barrel forming a slip fit with the cylinder head bore and forming a press fit with the injector tip. The NCS also optionally includes a brim to form a combustion seal with a cylinder head. As the spark plug ignites a fuel charge in the prechamber, heat is absorbed into the injector tip, flows into the NCS barrel, out of the NCS brim, and into the cylinder head for cooling via a cooling jacket.
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公开(公告)号：US09951731B2
公开(公告)日：2018-04-24
申请号：US14911283
申请日：2013-11-18
CPC分类号： F02M51/0682 , B05B1/18 , F02M51/06 , F02M51/061 , F02M61/168 , F02M2200/8046 , F02M2200/8061 , F02M2200/8084
摘要： A holder of a fuel injection valve is press-inserted to a housing of the fuel injection valve so as to be fixed to the housing, a cap of the fuel injection valve includes a notch portion for notching an annular portion, and is arranged in such a way that an inner circumference surface of the cap is faced to an outer circumference surface of a core of the fuel injection valve via a gap, and an electrode terminal of the fuel injection valve is connected to a terminal of a solenoid of the fuel injection valve via the notch portion of the cap.
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公开(公告)号：US09822749B2
公开(公告)日：2017-11-21
申请号：US14365989
申请日：2012-10-23
CPC分类号： F02M61/168 , F02M51/061 , F02M51/0682 , F02M2200/8061 , F02M2200/8084
摘要： A fuel injector for an internal combustion engine includes: an electromagnetic actuating element having a solenoid coil, a core and a valve casing as the outer solenoid circuit component, and a movable valve-closure body, which cooperates with a valve-seat surface assigned to a valve-seat body. The core and a connection pipe are fixedly connected in an inner opening of a thin-walled valve sleeve and the valve casing at the outer circumference of the valve sleeve is fixedly connected to the valve sleeve by being pressed in/on.
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公开(公告)号：US20170292488A1
公开(公告)日：2017-10-12
申请号：US15512370
申请日：2015-06-17
发明人： Masashi SUGAYA , Kiyotaka OGURA , Takao MIYAKE , Yoshihito YASUKAWA , Ryo KUSAKABE , Atsushi NAKAI
CPC分类号： F02M61/18 , F02M51/061 , F02M51/0685 , F02M61/168 , F02M61/20 , F02M2200/8061
摘要： An object of the present invention is to provide a fuel injection valve which has a structure where failure hardly occurs in a valve member and a peripheral member thereof at the time of press-fitting of a fixed core. The present invention provides a fuel injection valve that includes: a valve member 114A; an anchor 102 which is relatively displaceable with respect to the valve member 114A; a fixed core 107 in which a through-hole 107A is formed; a gap forming member 133 which forms a gap between an engagement portion 129B on the valve member side and an engagement portion 102D on the anchor side; and a biasing spring 134 which biases the gap forming member 133 in a valve closing direction. The engagement portions 102D and 129B are provided in both the anchor 102 and the valve member 114A so as to be engaged with each other when the anchor 102 is displaced in a valve opening direction with respect to the valve member 114A, thereby regulating the displacement of the anchor 102 in the valve opening direction. An outer diameter of the gap forming member 133, an outer diameter of the biasing spring 134, and a maximum outer diameter of the valve member 114A are set to be smaller than an inner diameter of the through-hole 107A.
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公开(公告)号：US20160222960A1
公开(公告)日：2016-08-04
申请号：US14870162
申请日：2015-09-30
申请人： DENSO CORPORATION
发明人： Hiroki INATANI
CPC分类号： F04B53/143 , F02M59/102 , F02M59/442 , F02M2200/8061 , F04B1/0448 , F04B9/042 , F04B17/05 , F04B53/02 , F04B53/14 , F04B53/16 , F16J9/18
摘要： A pump body includes a pump inserted portion inserted in a pump mount hole. A cylinder has a compression chamber at one end side and opens in an end surface of the pump inserted portion at the other end side. A plunger is actuated by a cam and is movable in the cylinder. A seal member restricts fuel in the compression chamber to leak through a slidable gap between the plunger and the cylinder and restricts lubricating oil flowing through the slidable gap into the compression chamber. A retaining member retains the seal member at a predetermined position in the axial direction and restricts the plunger from falling out of the cylinder. The retaining member is press-fitted to an end of the pump inserted portion.
摘要翻译： 泵体包括插入泵安装孔中的泵插入部分。 气缸在一端侧具有压缩室，在另一端侧的泵插入部的端面开口。 柱塞由凸轮致动并且可在气缸中移动。 密封构件限制压缩室中的燃料通过柱塞和气缸之间的可滑动间隙泄漏，并且限制流过可滑动间隙的润滑油进入压缩室。 保持构件将密封构件保持在轴向的预定位置，并限制柱塞从气缸中脱落。 保持构件压配合到泵插入部分的一端。
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公开(公告)号：US09200604B2
公开(公告)日：2015-12-01
申请号：US12308633
申请日：2008-02-01
CPC分类号： F02M51/0682 , F02M51/061 , F02M61/168 , F02M2200/8061
摘要： A fuel injector for fuel-injection systems of internal combustion engines. The fuel injector includes an electromagnetic actuating element having a solenoid coil, a core and a valve cover as external solenoid circuit component, and a movable valve-closure element, which cooperates with a valve-seat surface assigned to a valve-seat body. The core and a connection pipe are fixedly connected in an inner opening of a thin-walled valve sleeve by being pressed into place, and the valve cover at the outer circumference of the valve sleeve is firmly connected to the valve sleeve by being pressed onto it. The firm press-fitted connection of in each case two of these metallic components of the fuel injector is characterized by the fact that at least one of the partner components has in its press-fitting region a structure with score marks, and/or the particular press-fitting region has an intake rounding in at least one transition to an adjoining component section. To safely contain abrasion particles produced in the press-fitting action, starting from the press-fitting region of a partner component, first a recessed region adjoins, which is followed by a press lip, which radially projects further to the outside on the outer contour of this one component partner.
摘要翻译： 一种用于内燃机燃料喷射系统的燃油喷射器。 燃料喷射器包括具有螺线管线圈，芯部和作为外部螺线管回路部件的阀盖的电磁致动元件和与分配给阀座体的阀座表面配合的可动阀闭合元件。 芯和连接管被压入到薄壁阀套的内部开口中，阀套外周的阀盖通过压在阀套上而与阀套牢固连接 。 在每种情况下，燃料喷射器的这些金属部件中的两个的牢固的压配合连接的特征在于，至少一个伙伴部件在其压配合区域中具有带有分数的结构，和/或特定的 压配合区域在至少一个向相邻部件的过渡中进入四舍五入。 为了安全地包含在压入动作中产生的磨损颗粒，从配对部件的压配合区域开始，首先凹陷的区域邻接，其后面是压边，其在外轮廓上进一步径向突出到外部 的这个组件合作伙伴。
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公开(公告)号：US20150226167A1
公开(公告)日：2015-08-13
申请号：US14620027
申请日：2015-02-11
发明人： Jens Ramler , Felix Mayer , Wolfgang Layher , Georg Maier , Takumi Nonaka , Hiroyuki Oka , Hediki Watanabe
CPC分类号： F02M61/166 , B23P15/001 , F02M51/0639 , F02M51/0671 , F02M63/0043 , F02M2051/08 , F02M2200/16 , F02M2200/8053 , F02M2200/8061 , F02M2200/9015 , Y10T29/49417
摘要： An electromagnetic fuel valve has a valve chamber, a valve element and a valve seat assigned to the valve element. The valve chamber is delimited by an electromagnetic drive which moves the valve element relative to the valve seat. The drive includes a receiving housing for a coil carrier with an electrical coil. A magnet core is inserted into the coil carrier and has an end section facing the valve element. At an open sealing end facing toward the valve chamber, a sealing element is arranged between the end section of the magnet core and the receiving housing. To achieve good sealing, that end section of the magnet core situated in the sealing element expands the sealing element and compresses the material thereof radially against the edge of the sealing end of the receiving housing to seal the valve chamber to the interior space of the receiving housing.
摘要翻译： 电磁燃料阀具有阀室，阀元件和分配给阀元件的阀座。 阀室由电磁驱动器限定，电磁驱动器使阀元件相对于阀座移动。 驱动器包括用于具有电线圈的线圈架的接收壳体。 磁芯被插入到线圈架中并且具有面向阀元件的端部部分。 在朝向阀室的敞开的密封端处，密封元件设置在磁芯的端部与接收壳体之间。 为了实现良好的密封，位于密封元件中的磁芯的端部部分使密封元件膨胀并将其材料径向压靠在接收壳体的密封端的边缘上，以将阀室密封到接收器的内部空间 住房。
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公开(公告)号：US09022304B2
公开(公告)日：2015-05-05
申请号：US13914503
申请日：2013-06-10
发明人： Masami Nishida , Keiji Gotoh , Takao Miyazaki
CPC分类号： F02M61/10 , F02M51/0617 , F02M51/0671 , F02M51/0682 , F02M51/0685 , F02M61/166 , F02M61/1813 , F02M61/1853 , F02M63/0063 , F02M2200/03 , F02M2200/08 , F02M2200/8061
摘要： A fuel injection device of a direct injection engine is provided. The device includes an engine body, a fuel injection valve, and a controller for controlling a fuel injection by the fuel injection valve. The fuel injection valve has a nozzle hole, a valve body for opening and closing the nozzle hole, and first and solenoid coils for stroking the valve body by first and second stroke amounts, respectively. The controller performs the fuel injection by the first solenoid coil in an intake stroke period within an engine operating range with an engine load below a predetermined load. The controller performs the fuel injection with a fuel pressure of 40 MPa or above by the second solenoid coil in a period between a compression stroke late stage and an expansion stroke early stage within a low-engine-speed range with an engine speed below a predetermined speed and within a high-engine-load range.
摘要翻译： 提供直喷式发动机的燃料喷射装置。 该装置包括发动机主体，燃料喷射阀和用于控制燃料喷射阀的燃料喷射的控制器。 燃料喷射阀具有喷嘴孔，用于打开和关闭喷嘴孔的阀体，以及分别通过第一和第二冲程量对阀体进行冲程的第一和电磁线圈。 控制器在发动机工作范围内的发动机工作范围内，在发动机负荷低于预定负荷的情况下，通过第一螺线管线圈进行燃料喷射。 控制器在发动机转速低于预定值的低发动机转速范围内，在压缩冲程后期阶段与膨胀冲程早期阶段之间，通过第二螺线管线圈以40MPa以上的燃料压力进行燃料喷射。 在高发动机负载范围内。
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