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公开(公告)号：EP1795739A1
公开(公告)日：2007-06-13
申请号：EP05785209.7
申请日：2005-09-22
申请人： Keihin Corporation
发明人： AKABANE, Akira , TANUMA, Hirokazu
CPC分类号： F02M51/005 , F02M51/0675 , F02M61/168 , F02M61/1853 , F02M2200/9015
摘要： In an electromagnetic fuel injection valve in which a first resin-molded layer that is made of a synthetic resin, covers a solenoid section, and forms a coupler main portion that defines a framework of a power-receiving coupler is covered by a second resin-molded layer made of a synthetic resin that is different from that of the first resin-molded layer so that an outer face of the coupler main portion is exposed from a middle part up to the extremity of the coupler main portion, an endless engagement groove (45) is provided on the outer periphery of the middle part of the coupler main portion (40a) of the first resin-molded layer (41), the second resin-molded layer (42) engaging with the endless engagement groove (45), and an extending portion (42b) extending further outward than the engagement groove (45) is formed in the second resin-molded layer (42) so that the extending portion (42b) makes contact with an outer face of the coupler main portion (40a) when in a non-engaged state and covers the coupler main portion (40a). This prevents a gap or a bulge from occurring in a boundary section between the two resin-molded layers, thus improving the connectivity of a power-supplying coupler to a power-receiving coupler and the merchantability.
摘要翻译： 在电磁式燃料喷射阀中，由合成树脂制成的第一树脂模制层覆盖螺线管部分并且形成限定电力接收联接器的框架的联接器主体部分被第二树脂模制部件覆盖， 由不同于第一树脂模制层的合成树脂制成的模制层，从而使联接器主体部分的外表面从中间部分暴露到联接器主体部分的末端，环形接合槽（ 45）设置在第一树脂模制层（41）的耦合器主体部分（40a）的中间部分的外周上，第二树脂模制层（42）与环形啮合槽（45）啮合， 在所述第二树脂模制层（42）中形成延伸部分（42b），所述延伸部分（42b）比所述接合槽（45）更向外延伸，使得所述延伸部分（42b）与所述联接器主体部分（40a）的外表面 ）当处于非参与状态时 d覆盖联接器主体部分（40a）。 这防止了在两个树脂模制层之间的边界部分中出现间隙或隆起，从而改善了供电耦合器与受电耦合器的连接性和商用性。
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公开(公告)号：EP1757800A1
公开(公告)日：2007-02-28
申请号：EP05748672.2
申请日：2005-06-10
申请人： Keihin Corporation
发明人： Akabane, Akira, Kakuda Dev. Center of Keihin Corp. , Sato, Kenichi, Kakuda Dev. Center of Keihin Corp.
IPC分类号： F02M51/06
CPC分类号： F02M51/0675 , F02M51/0614 , F02M61/168 , F02M61/18 , F02M2200/8061 , F02M2200/8084 , Y10T29/49432
摘要： An electromagnetic fuel injection valve is provided in which a cylindrical magnetic body is welded to a valve seat member having at the rear end thereof a tubular press-fit portion press-fitted into a front portion of the cylindrical magnetic body, a valve body is housed in the valve seat member while being spring-biased in a direction that seats the valve body on a valve seat, and a movable core facing a fixed core is coaxially connected to the valve body, wherein the valve seat member (10) includes the tubular press-fit portion (10a), a large diameter portion (10b) that has substantially the same outer diameter as the outer diameter of the cylindrical magnetic body (9), and an annular shoulder portion (10c) that is formed as a flat face perpendicular to the outer peripheral face of the tubular press-fit portion (10a) and provides a connection between the tubular press-fit portion (10a) and the large diameter portion (10b), an annular abutment receiving face (9a) at the front end of the cylindrical magnetic body (9) is formed so as to define a right angle relative to the inner peripheral face of the cylindrical magnetic body (9), the annular abutment receiving face (9a) abutting against the annular shoulder portion (10c) over substantially the entire face, and the front end of the cylindrical magnetic body (9) and the abutment portion of the valve seat member (10) are welded together along the entire periphery. This enables the thickness of the cylindrical magnetic body to be reduced, thus making it small and improving the responsiveness.
摘要翻译： 提供一种电磁燃料喷射阀，其中圆柱形磁体焊接到阀座构件，阀座构件的后端具有压配合到圆柱形磁体的前部的管状压配合部，容纳阀体 在阀座构件的同时沿阀座上的阀体的方向进行弹簧偏压，并且面向固定芯的可动铁芯与阀体同轴连接，其中阀座构件（10）包括管状 压配合部分（10a），具有与圆柱形磁体（9）的外径基本相同的外径的大直径部分（10b）和形成为平面的环形肩部（10c） 垂直于管状压配合部分（10a）的外周面并且提供管状压配合部分（10a）和大直径部分（10b）之间的连接，在前部的环形邻接接收面（9a） 结束t 圆柱形磁体（9）形成为相对于圆柱形磁体（9）的内周面形成直角，环形台座接收面（9a）基本上与环形肩部（10c）抵接 整个表面和圆柱形磁体（9）的前端和阀座构件（10）的抵接部分沿着整个周边焊接在一起。 这样可以减小圆柱形磁性体的厚度，从而使其小型化并提高响应性。
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公开(公告)号：EP1609980A4
公开(公告)日：2006-09-27
申请号：EP04723732
申请日：2004-03-26
申请人： KEIHIN CORP
发明人： NAGAOKA TAKAHIRO
CPC分类号： F02M61/168 , F02M51/0675 , F02M2200/9061
摘要： An electromagnetic fuel injection valve has a fuel entrance tube (26) and a retainer tube (23). The fuel entrance tube (26) continues to an outer edge of a hollow stationary core (5). The retainer tube (23) is inserted from the fuel entrance tube (26) to a hollow portion (21) of the stationary core (5) and supporting a fixed end of a valve spring (22). The fuel entrance tube (26) is formed of a very hard magnetic material, and a softened region (A) is formed by heating in that portion of the fuel entrance tube (26) that is opposite the retainer tube (23). The retainer tube (23) is fixed to the fuel entrance tube (26) by staking the softened region (A) to the retainer tube (23). In this way, even when the fuel entrance tube is formed of a very hard magnetic material, the retainer tube can be reliably fixed to the fuel entrance tube by staking.
摘要翻译： 电磁燃料喷射阀具有燃料入口管（26）和保持管（23）。 燃料入口管（26）连续到中空固定芯（5）的外边缘。 保持器管（23）从燃料入口管（26）插入到固定芯（5）的中空部分（21）并支撑阀弹簧（22）的固定端。 燃料入口管26由非常硬的磁性材料形成，并且在燃料入口管26的与保持器管23相对的部分中通过加热形成软化区域A. 通过将软化区域（A）桩到保持器管（23），保持器管（23）固定到燃料入口管（26）。 这样，即使当燃料入口管由非常硬的磁性材料形成时，保持管也可以通过铆接而可靠地固定到燃料入口管。
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公开(公告)号：EP1571330A1
公开(公告)日：2005-09-07
申请号：EP05012528.5
申请日：2000-03-16
申请人： Hitachi, Ltd.
发明人： Miyajiima, Ayumu , Okamoto, Yoshio , Kadomukai, Yuzo , Togashi, Shigenori , Amo, Kiyoshi , Yamakado, Makoto , Ishikawa, Tohru , Kubo, Hiromasa , Fujii, Hiroshi
CPC分类号： F02M61/188 , F02B17/005 , F02B23/104 , F02B23/105 , F02B2023/106 , F02B2023/108 , F02B2075/125 , F02M51/0671 , F02M51/0675 , F02M51/0682 , F02M61/162 , F02M61/18 , F02M61/1806 , F02M69/045 , Y02T10/12 , Y02T10/123 , Y02T10/125
摘要： A fuel injection valve for injecting fuel is provided, wherein a fuel spray injected through a fuel injection hole (8) includes a first portion (80A) having a long spray reaching distance and a second portion (80) having a short spray reaching distance, wherein the first portion (80A) consists essentially of a fuel rich spray portion and the second portion (80) consists essentially of a fuel lean spray portion, wherein the first portion (80A) having the long spray reaching distance and the second portion (80) having the short spray reaching distance are formed around a circumference of a cross section crossing a valve axial line (J) of the fuel injection valve (1).
摘要翻译： 本发明提供一种用于喷射燃料的燃料喷射阀，其中通过燃料喷射孔（8）喷射的燃料喷雾包括具有长喷射到达距离的第一部分（80A）和具有短喷射到达距离的第二部分（80） 其中所述第一部分（80A）基本上由富含燃料的喷射部分组成并且所述第二部分（80）基本上由贫燃料喷射部分组成，其中所述第一部分（80A）具有长喷射到达距离，并且所述第二部分 ）在与燃料喷射阀（1）的气门轴线（J）交叉的截面的周围形成有喷射到达距离短的气流。
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15.发明公开Direct injection fuel injector and internal combustion engine mounting the same 有权用于直接喷射，并与该装置的燃料喷射阀搭载内燃机
公开(公告)号：EP1108885A3
公开(公告)日：2003-05-14
申请号：EP00115062.2
申请日：2000-07-26
申请人： Hitachi, Ltd.
CPC分类号： F02M61/1806 , F02B2075/125 , F02M51/0675 , F02M51/0682 , F02M61/162 , F02M69/045 , Y02T10/123
摘要： In a spray characteristic in a direct injection system gasoline engine use electromagnetic system fuel injector (1), to a piston cavity a mixture of fuel and air having a combustible concentration is converged and making rich the mixture having the combustible concentration at a side of ignition plug (65), then an ignition performance is improved and making thin the mixture of fuel and air to a piston direction a combustion performance is improved, namely it is necessary to generate a flat inclined spray. A part of a wall face for forming the injection hole (8) at an outlet portion of the injector is formed with V groove according to two inclination faces with optional angles against a center axial line of the injection hole (8) or a substantially recess shape step-wise rectangular groove having different cut-off depths.
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公开(公告)号：EP1300583A2
公开(公告)日：2003-04-09
申请号：EP02021426.8
申请日：2002-09-25
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M51/0685 , F02M51/0671 , F02M51/0675 , F02M61/16
摘要： Ein Brennstoffeinspritzventil (1), insbesondere zum direkten Einspritzen von Brennstoff in den Brennraum einer gemischverdichtenden, fremdgezündeten Brennkraftmaschine, umfaßt einen Anker (20)-, der mit einer Magnetspule (10) zusammenwirkt, und eine mit dem Anker (20) über eine Hülse (21) in Wirkverbindung stehende Ventilnadel (3), an der ein Ventilschließkörper (4) vorgesehen ist, der zusammen mit einer Ventilsitzfläche (6) einen Dichtsitz bildet. Zwischen der Hülse (21) und dem Anker (20) ist eine Vorhubfeder (22) angeordnet. Ein als Ankeranschlag dienender Anschlagring (15) ist abströmseitig des Ankers (20) angeordnet. An einer dem Anker (20) zugewandten Stirnseite (33) des Anschlagrings (15) und/oder an einer entsprechenden Gegenfläche (38) des Ankers (20) und/oder an einer dem Anker (20) zugewandten Stirnseite (32) der Hülse (21) und/oder einer entsprechenden Gegenfläche (39) des Ankers (20) ist zumindest eine Ausnehmung (31; 37) ausgebildet, welche eine wirksame Anschlagfläche der Stirnseiten (32; 33) verkleinert.
摘要翻译： 的燃料喷射阀（1），特别是用于直接喷射燃料到一个混合压缩的燃烧室，火花点火内燃发动机，包括一个电枢（20）， - 通过一个套筒，其与电磁线圈（10）和所述衔铁（20）配合（ 21）在操作连接的阀针（3）被提供在其上的阀关闭体（4），其形成（与阀座表面6一起）具有密封座。 套筒（21）和所述电枢（20）之间的是预行程弹簧（22）。 用作止动环（15）的电枢光阑设置在电枢（20）的下游。 在面对止动环的端面（33）的电枢（20），（15）和/或在所述电枢（20）和一个相应的反向表面（38）/或在面向电枢的一侧（20）的端面（32）的套筒的（ 21）和/或所述电枢（20）的相应的对置表面（39）是至少一个凹部（31; 37）形成，其包括端面（32的有效的止挡面; 33度减小）。
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公开(公告)号：EP1281859A2
公开(公告)日：2003-02-05
申请号：EP02004282.6
申请日：2002-02-27
申请人： Hitachi, Ltd.
发明人： Terakado, Katsuyoshi, Hitachi,Ltd.,Intell.Prop.Gr. , Yokoyama, Mizuho, Hitachi,Ltd.,Intell.Prop.Group , Kagiyama, Arata, Hitachi,Ltd.,Intell.Prop.Group , Baba, Noboru, Hitachi,Ltd.,Intell.Prop.Group , Souma, Masahiro, Hitachi Car Eng. Co., Ltd.
CPC分类号： F02M61/162 , F02M51/0664 , F02M51/0667 , F02M51/0675
摘要： The invention relates to an electronic fuel injector capable of supplying fuel in a stable manner is provided by employing a swirler (4) , which is manufactured at a lower cost and has durability, and by ensuring superior wear resistance of the swirler (4) and a valve member (2) provided on a movable part (1), which is put into frictional contact with the swirler (4). The electronic fuel injector-comprises a movable part (1), a valve member (2), a valve seat (3), a swirler (4), a stopper (5), a stator core (6), a casing (7), a spring (8), and an electromagnetic coil (9). A valve member (2) is provided at a fore end of the movable part (1). The swirler (4) serves not only to swirl fuel, but also to guide movement of the valve member (2) provided at the fore end of the movable part (1). The swirler (4) is formed of a powder sintered compact of martensitic stainless steel having corrosion resistance and wear resistance.
摘要翻译： 本发明涉及一种能够以稳定的方式供应燃料的电子燃料喷射器，其通过采用以较低成本制造且具有耐久性的旋流器（4）并且通过确保旋流器（4）的优异耐磨性和 设置在与旋流器（4）摩擦接触的可动部（1）上的阀部件（2）。 该电子燃料喷射器包括可动部件1，阀部件2，阀座3，旋流器4，制动器5，定子铁芯6，壳体7 ），弹簧（8）和电磁线圈（9）。 阀部件（2）设置在可动部（1）的前端。 旋流器（4）不仅用于使燃料旋转，而且还用于引导设置在可动部（1）的前端处的阀构件（2）的运动。 旋流器（4）由具有耐腐蚀性和耐磨损性的马氏体不锈钢粉末烧结体形成。
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18.发明公开Direct injection fuel injector and internal combustion engine mounting the same 有权用于直接喷射，并与该装置的燃料喷射阀搭载内燃机
公开(公告)号：EP1108885A2
公开(公告)日：2001-06-20
申请号：EP00115062.2
申请日：2000-07-26
申请人： Hitachi, Ltd.
CPC分类号： F02M61/1806 , F02B2075/125 , F02M51/0675 , F02M51/0682 , F02M61/162 , F02M69/045 , Y02T10/123
摘要： In a spray characteristic in a direct injection system gasoline engine use electromagnetic system fuel injector (1), to a piston cavity a mixture of fuel and air having a combustible concentration is converged and making rich the mixture having the combustible concentration at a side of ignition plug (65), then an ignition performance is improved and making thin the mixture of fuel and air to a piston direction a combustion performance is improved, namely it is necessary to generate a flat inclined spray. A part of a wall face for forming the injection hole (8) at an outlet portion of the injector is formed with V groove according to two inclination faces with optional angles against a center axial line of the injection hole (8) or a substantially recess shape step-wise rectangular groove having different cut-off depths.
摘要翻译： 在直接喷射系统的汽油发动机的喷射特性使用电磁系统中的燃料喷射器（1），在活塞腔的燃料和空气具有可燃浓度被会聚，使富具有可燃浓度的混合物在点火的侧面的混合物 塞（65），然后在点火性能被改善，使燃料和空气的薄的混合物到活塞方向的燃烧性能得到改善，即，有必要产生一个平坦的倾斜的喷雾。 壁面的用于形成在喷孔（8）在所述喷射器的出口部分的一部分上形成与雅丁V形槽两个倾斜面与针对喷射孔（8）的中心轴线或大致凹陷可选角度 形状具有不同的截止深度阶段的矩形槽。
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19.发明公开
公开(公告)号：EP1036933A2
公开(公告)日：2000-09-20
申请号：EP00105325.5
申请日：2000-03-16
申请人： Hitachi, Ltd.
发明人： Miyajima, Ayumu , Okamoto, Yoshio , Kadomukai, Yuzo , Togashi, Shigenori , Amo, Kiyoshi , Yamakado, Makoto , Ishikawa, Tohru , Kubo, Hiromasa , Fujii, Hiroshi
CPC分类号： F02M61/188 , F02B17/005 , F02B23/104 , F02B23/105 , F02B2023/106 , F02B2023/108 , F02B2075/125 , F02M51/0671 , F02M51/0675 , F02M51/0682 , F02M61/162 , F02M61/18 , F02M61/1806 , F02M69/045 , Y02T10/12 , Y02T10/123 , Y02T10/125
摘要： At an outlet portion of an injection hole (8) of a fuel injection valve (1), through removal of a part (A1, 7B) of a wall forming the injection hole (8), a restriction to a spray flow is released, thereby, a deflection spray is formed in which the spray is rich at the side of restriction released and is lean at the side of restricted, accordingly, ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces exhaust amount of unburnt gas components.
摘要翻译： 在燃料喷射阀（1）的喷射孔（8）的出口部分，通过去除形成喷射孔（8）的壁的一部分（A1，7B），释放对喷射流的限制， 从而形成偏转喷雾，其中喷雾在限制释放的一侧是富的，并且在限制的一侧是倾斜的，因此提高了内燃机的点火性能，并且实现了最佳喷雾，其减少了排气量 的未燃气组分。
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公开(公告)号：EP0345771A3
公开(公告)日：1990-09-05
申请号：EP89110371.5
申请日：1989-06-08
申请人： HITACHI, LTD.
IPC分类号： F02M51/06
CPC分类号： H01F41/0206 , F02M51/0675 , H01F3/00 , H01F7/1607 , Y10S239/90
摘要： Disclosed is an electromagnetic type fuel injection valve (10) including a stator iron core (1), an electromagnetic coil (2) concentric with the stator iron core, a casing (4) formed of a magnetizable material and accommodating therein the stator iron core and the electromagnetic coil, a moving body (6, 106) provided at its end with a valve body (6d, 106d), a stopper (7) for the moving body, a valve seat (7a) opposite to the stopper with the moving body interposed therebetween and a spring (9) engaged with an end of the moving body for biasing the same, the moving body being adapted to reciprocate between the valve seat and the stator iron core under the magnetizing force of the electromagnetic coil and the biasing force of the spring, and having an armature (6a, 106a) adapted to be absorbed by the stator iron core and a rod (6b, 106b) contiguous with the valve body, the armature and the rod being formed of the same material so as to be integral with each other, a guide portion (6c, 106c) of the rod and a portion of the moving body adapted to abut against the stopper being subjected to a hardening treatment, and the electromagnetic absorbing force of the armature being increased by reducing the leak magnetic flux leaking through the rod.
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