公开(公告)号：US4742964A

公开(公告)日：1988-05-10

申请号：US922170

申请日：1986-10-23

申请人： Hideki Ito ,  Motohiro Baba ,  Hitoshi Takeuchi ,  Toshiro Makimura ,  Takaaki Takagi

发明人： Hideki Ito ,  Motohiro Baba ,  Hitoshi Takeuchi ,  Toshiro Makimura ,  Takaaki Takagi

IPC分类号： F02M51/06 ,  F02M51/08 ,  F02M61/14 ,  F02M69/04 ,  F02M69/46 ,  H01F7/16 ,  B05B15/00 ,  B05B1/30

CPC分类号： H01F7/1638 ,  F02M51/0675 ,  F02M53/08 ,  F02M61/145 ,  F02M69/044 ,  F02M69/465 ,  Y10S239/90

摘要： An electromagnetic fuel injector comprising a fixed iron core, a solenoid formed by winding a coil around the fixed iron core, a coil holder fixed to the solenoid, an injector casing surrounding the solenoid and the coil holder and formed of a material having high magnetic permeability, a movable iron core inserted between the fixed iron core and the injector casing, a compression spring normally biasing the movable iron core toward an injection nozzle of the injector, a valve body connected at its base to the movable iron core and formed with a flange at a base portion thereof, a stopper adapted to abut against the flange of the valve body and restrict a movable range, a valve housing incorporated in a front portion of the injector casing and slidably supporting the valve body, the valve housing being formed at its front end portion with a valve seat adapted to abut against the valve body, and a radiation member closely fitted on an outer periphery of the injector casing. A connection member may be provided connecting a plurality of injectors mounted on cylinders in a multi-cylinder engine for radiating heat generated in the injectors.

摘要翻译： 一种电磁燃料喷射器，包括固定铁芯，通过围绕固定铁芯卷绕线圈而形成的螺线管，固定到螺线管的线圈架，围绕螺线管的线圈架和线圈架，并由具有高磁导率的材料形成 ，插入在固定铁芯和喷射器壳体之间的可动铁芯，通常将可动铁芯朝向喷射器的喷射喷嘴偏压的压缩弹簧，在其底部连接到可动铁芯并形成有凸缘的阀体 在其基部处具有适于抵靠阀体的凸缘并限制可移动范围的止动件，结合在喷射器壳体的前部中并可滑动地支撑阀体的阀壳体，阀壳体形成在其 具有适于抵靠阀体的阀座的前端部分和紧密配合在喷射器壳体的外周上的辐射构件。 连接构件可以连接安装在多气缸发动机中的气缸上的多个喷射器，用于辐射在喷射器中产生的热量。

公开(公告)号：US5927613A

公开(公告)日：1999-07-27

申请号：US865109

申请日：1997-05-29

申请人： Kazuaki Koyanagi ,  Takaaki Takagi

发明人： Kazuaki Koyanagi ,  Takaaki Takagi

IPC分类号： F02M51/06 ,  F02M61/16 ,  F16K31/06 ,  B05B1/30

CPC分类号： F02M61/168 ,  F02M51/0614 ,  F02M51/0671

摘要： A fuel injector includes a tubular core 3 which attracts an armature 10 of a valve 12 by energizing a solenoid coil 6, and an outside magnetic path forming member 7 which partly surrounds the solenoid coil 6 and which constitutes a magnetic path M together with an armature 10 and the core 3. The outside magnetic path forming member 7 is provided with an end plate 7b having a mounting hole 8, and the core 3 is provided with a flange 3a in contact with the end plate 7b. The core 3 is inserted into the mounting hole 8 of the outside magnetic path forming member 7 such that the end plate 7b comes into contact with the flange 3a of the core 3, thus readily positioning the outside magnetic path forming member 7 on the core 3.

摘要翻译： 燃料喷射器包括管状芯3，其通过激励螺线管线圈6吸引阀12的电枢10;以及外部磁路形成部件7，其部分地围绕螺线管线圈6并且与电枢一起构成磁路M 外侧磁路形成部件7设置有具有安装孔8的端板7b，芯部3设置有与端板7b接触的凸缘3a。 芯3插入到外部磁路形成部件7的安装孔8中，使得端板7b与芯部3的凸缘3a接触，从而容易地将外部磁路形成部件7定位在芯部3上 。

公开(公告)号：US5088650A

公开(公告)日：1992-02-18

申请号：US494539

申请日：1990-03-16

申请人： Takaaki Takagi ,  Toshiro Makimura ,  Kenji Kurita

发明人： Takaaki Takagi ,  Toshiro Makimura ,  Kenji Kurita

IPC分类号： B01D35/02 ,  F02M51/06 ,  F02M51/08 ,  F02M61/16

CPC分类号： F02M61/165 ,  B01D35/02 ,  F02M51/0671 ,  F02M51/0675 ,  Y10S239/23

摘要： A fuel injector including an injector casing having a fuel inlet at a side portion thereof; a valve housing having a fuel injection hole at a front end thereof and having a guide hole at an axial central portion thereof, the guide hole being communicated with the fuel inlet; a valve reciprocably accommodated in the guide hole, the valve being adjusted to close the fuel injection hole when advancing and open the fuel injection hole when retracting; a valve driving device for driving the valve to advance and retract the valve; and a fuel strainer mounted on an outer circumference of the injector casing, the strainer comprising a synthetic resin frame having annular portions at front and rear ends thereof and a metal ring connected to at least one of the front and rear end portions of the frame by insert molding of synthetic resin, the metal ring being press-fitted with the injector casing. With this construction, the generation of a gap due to the creep of resin between the injector casing and the strainer can be prevented to thereby prevent entry of a foreign matter into the injector.

摘要翻译： 一种燃料喷射器，包括在其侧部具有燃料入口的喷射器壳体; 阀壳体，其前端具有燃料喷射孔，并且在其轴向中心部分具有引导孔，所述引导孔与所述燃料入口连通; 可往复地容纳在引导孔中的阀，当进行收缩时推进并打开燃料喷射孔时，调节阀关闭燃料喷射孔; 阀驱动装置，用于驱动阀来推进和缩回阀; 以及安装在所述喷射器壳体的外周上的燃料过滤器，所述过滤器包括合成树脂框架，所述合成树脂框架在其前端和后端具有环形部分，并且金属环通过所述框架的前后端部中的至少一个连接到所述框架 插入成型合成树脂，金属环与喷射器套筒压配合。 通过这种结构，可以防止由于注射器壳体和过滤器之间的树脂蠕变而产生间隙，从而防止异物进入注射器。

公开(公告)号：US07055369B2

公开(公告)日：2006-06-06

申请号：US10702483

申请日：2003-11-07

申请人： Takanori Matsunami ,  Takaaki Takagi ,  Koji Yoshikawa

发明人： Takanori Matsunami ,  Takaaki Takagi ,  Koji Yoshikawa

IPC分类号： G01N7/00

CPC分类号： G01N33/0009

摘要： A gas detector having an intake to let in the gas to be detected and detecting the gas let in through the intake by a gas sensor, in which a porous film is horizontally arranged over the gas intake, in order to prevent the gas permeability of the porous film from being affected by water, oil and/or dust riding on the porous film, wherein a water-repellant and oil-repellant porous film is horizontally provided in a stretched state over the upper end of the intake, and the outside of the outer circumferential edge of the porous film is so structured as to allow liquid on the porous film to fall externally.

摘要翻译： 一种气体检测器，具有吸入待检测气体的入口，并且通过气体传感器检测通过进气口的气体，其中多孔膜水平地布置在气体入口上方，以防止气体渗透性 多孔膜受到水，油和/或尘埃影响的多孔膜，其中防水和防油多孔膜在拉伸状态下水平地设置在进气口的上端，并且外部的 多孔膜的外圆周边缘被构造成允许多孔膜上的液体从外部落下。

公开(公告)号：US5752316A

公开(公告)日：1998-05-19

申请号：US606959

申请日：1996-02-26

申请人： Takaaki Takagi ,  Kaneo Imamura ,  Katuo Yoshihara ,  Akihiro Tanaka

发明人： Takaaki Takagi ,  Kaneo Imamura ,  Katuo Yoshihara ,  Akihiro Tanaka

IPC分类号： F02M51/06 ,  B23P15/16 ,  F02M51/08 ,  F02M61/18

CPC分类号： B23P15/16 ,  F02M61/1806 ,  Y10T29/49298 ,  Y10T29/49419 ,  Y10T29/49423

摘要： An orifice plate to be mounted at a fuel jet section of an injector has a plurality of jet holes formed therethrough for injecting fuel. The orifice plate includes a curved surface formed at an inlet peripheral edge of each of the jet holes, and a cylindrical projection formed at an outlet of each of the jet holes. The cylindrical projection has the same inner diameter as that of the jet hole.

摘要翻译： 安装在喷射器的燃料喷射部分的孔板具有穿过其形成的用于喷射燃料的多个喷射孔。 孔板包括形成在每个喷射孔的入口周边边缘处的弯曲表面，以及形成在每个喷射孔的出口处的圆柱形突起。 圆柱形突起具有与喷射孔相同的内径。

公开(公告)号：US4483485A

公开(公告)日：1984-11-20

申请号：US443571

申请日：1982-11-22

申请人： Kingo Kamiya ,  Takaaki Takagi

发明人： Kingo Kamiya ,  Takaaki Takagi

IPC分类号： F02M51/06 ,  F02M61/16 ,  B05B1/30

CPC分类号： F02M61/166 ,  F02M51/0653 ,  F02M51/0657 ,  F02M51/0671 ,  F02M51/0682 ,  Y10S239/90

摘要： An electromagnetic fuel injector comprising a valve body composed of a spherical valve member and a hollow cylindrical slide member which is adapted to slide along a guide hole and the interior of which is a fuel passage. The slide member is provided with openings for passing liquid fuel therethrough at its peripheral wall. A circumferential clearance ranging from 4 to 30 .mu. is provided between the outer surface of the slide member and the inner surface of the guide hole. At least one of the valve member and the slide member which members constitute the valve body is formed of titanium, titanium alloy, ceramic or ferric material. With this arrangement, the slide member may be fabricated without a strictly high accuracy and the mass of the valve body may be reduced, thus increasing the response characteristics of the valve body to the on-off operation of an exciting coil.

摘要翻译： 一种电磁燃料喷射器，包括由球形阀构件和中空圆柱形滑动构件组成的阀体，所述中空圆柱形滑动构件适于沿导向孔滑动并且其内部是燃料通道。 滑动构件设置有用于使液体燃料在其周边壁上通过的开口。 在滑动构件的外表面和引导孔的内表面之间设置有4至30微米的圆周间隙。 阀构件和构成阀体的构件中的至少一个由钛，钛合金，陶瓷或铁材​​构成。 通过这种布置，可以制造滑动构件而不具有严格的高精度，并且可以减小阀体的质量，从而增加阀体对励磁线圈的开关操作的响应特性。