公开(公告)号：US4564145A

公开(公告)日：1986-01-14

申请号：US495152

申请日：1983-05-17

申请人： Shigetaka Takada ,  Toshiro Makimura ,  Mamoru Matsubara

发明人： Shigetaka Takada ,  Toshiro Makimura ,  Mamoru Matsubara

IPC分类号： F02M51/06 ,  F02M61/18

CPC分类号： F02M61/188 ,  F02M51/0657 ,  F02M51/0682 ,  F02M61/18 ,  F02D2200/0606 ,  Y10S239/90

摘要： Disclosed herein is an electromagnetic fuel injector comprising a fuel outlet opening formed at the front portion of the slide member of the valve body, an annular fuel passage leading from the fuel outlet opening to the valve seat and an annular restricted portion provided at the annular fuel passage. The fuel injector of the invention may compensate decrease in the amount of fuel flow because of decrease in the specific weight of fuel and creation of fuel vapor at the fuel injection nozzle in association with increase in fuel temperature, and may supply an engine with fuel mixture having stable air-fuel ratio to purify exhaust gas during engine operation at high temperatures.

摘要翻译： 本文公开了一种电磁燃料喷射器，其包括形成在阀体的滑动构件的前部处的燃料出口，从燃料出口到阀座的环形燃料通道和设置在环形燃料 通道。 本发明的燃料喷射器可以补偿燃料流量的减少，因为与燃料温度的增加相关联的燃料比重降低和燃料喷嘴处的燃料蒸气的产生，并且可以向发动机供应燃料混合物 具有稳定的空燃比，可在高温发动机运转时净化排气。

公开(公告)号：US5085369A

公开(公告)日：1992-02-04

申请号：US606904

申请日：1990-10-31

申请人： Tsuneaki Aoki ,  Toshiro Makimura ,  Kaneo Imamura

发明人： Tsuneaki Aoki ,  Toshiro Makimura ,  Kaneo Imamura

IPC分类号： F02M51/06 ,  F02M51/08 ,  F02M61/18 ,  F02M69/04

CPC分类号： F02M69/04 ,  F02M51/0675 ,  F02M61/18 ,  F02M69/045 ,  F02M2051/08

摘要： A fuel injector including a valve housing having a fuel injection hole formed at a front end of the valve housing; a valve movably provided int he valve housing so as to open and close the fuel injection hole; a nozzle fixedly mounted to a front end of the valve housing; and a fuel colliding member provided in the nozzle and positioned in alignment with the fuel injection hole in front thereof. A size of the fuel colliding member is smaller in cross section perpendicular to an axis of the fuel injector than that of the fuel injection hole. Accordingly, a radially inside part of a columnar fuel after collision with the fuel colliding member further collides with a radially outside part of the columnar fuel passing outside the fuel colliding member to accelerate atomization of the fuel without reducing a velocity of flow of the fuel.

摘要翻译： 一种燃料喷射器，包括具有形成在所述阀壳体的前端处的燃料喷射孔的阀壳体; 可移动地设置在阀壳体上以便打开和关闭燃料喷射孔的阀; 固定地安装在阀壳体前端的喷嘴; 以及燃料碰撞构件，其设置在所述喷嘴中并且与其前面的燃料喷射孔对准地定位。 燃料碰撞构件的尺寸在垂直于燃料喷射器的轴线的横截面上小于燃料喷射孔的尺寸。 因此，与燃料碰撞构件碰撞之后的柱状燃料的径向内部部分进一步与通过燃料碰撞构件外部的柱状燃料的径向外部部分碰撞，以加速燃料的雾化，而不会降低燃料的流动速度。

公开(公告)号：US07044405B2

公开(公告)日：2006-05-16

申请号：US10771158

申请日：2004-02-04

申请人： Hiroshi Kawazoe ,  Toshiro Makimura

发明人： Hiroshi Kawazoe ,  Toshiro Makimura

IPC分类号： F02M61/00

CPC分类号： F02M61/18 ,  F02M51/0667

摘要： It is, accordingly, an object of the present teachings to provide fuel injectors that can prevent leakage of noise, which is caused by contact of the valve with the valve seat, to the outside of the fuel injector. a representative injector may comprise a fuel passage, a valve, a valve seat, a jet opening and a jet opening downstream channel. The valve is disposed on the fuel passage and the valve seat receives the valve. The jet opening is formed in the valve seat and through which fuel is exhausted. The jet opening may be opened when the valve is moved apart from the valve seat. The jet opening downstream channel extends downstream from the jet opening through the valve seat and communicates the jet opening to the outside. The diameter of the jet opening downstream channel may be arranged and adapted such that the valve seat has a wall thickness to prevent leakage of noise to the outside through the valve seat. Because the diameter of the jet opening downstream channel is designed to be smaller and the wall thickness of the valve seat is designed to be greater, the representative injector can effectively prevent leakage of noise to the outside through the valve seat.

摘要翻译： 因此，本发明的目的是提供能够防止由阀与阀座的接触引起的噪声泄漏到燃料喷射器外部的燃料喷射器。 代表性的喷射器可以包括燃料通道，阀，阀座，喷射开口和下游通道的喷射开口。 阀设置在燃料通道上，阀座接收阀。 喷射口形成在阀座中，燃料被排出。 当阀门从阀座移开时，喷射口可以打开。 喷射开口下游通道从射流开口的下游延伸穿过阀座并将喷射开口连通到外部。 喷射开口下游通道的直径可以被布置和适配，使得阀座具有壁厚度，以防止噪声通过阀座泄漏到外部。 因为喷射开口下游通道的直径被设计得更小，并且阀座的壁厚被设计得更大，所以代表性的喷射器可以有效地防止通过阀座向外部泄漏噪声。

公开(公告)号：US20060016418A1

公开(公告)日：2006-01-26

申请号：US11178609

申请日：2005-07-12

申请人： Tsuneaki Aoki ,  Masami Tatsukawa ,  Toshiro Makimura

发明人： Tsuneaki Aoki ,  Masami Tatsukawa ,  Toshiro Makimura

IPC分类号： F02M57/04

CPC分类号： F02M61/145 ,  F02M51/005 ,  F02M51/0671 ,  F02M61/168 ,  F02M69/042 ,  F02M2200/8061 ,  F02M2200/858 ,  F02M2200/90

摘要： A movable core 31 can move with respect to a fixed core 21. A bobbin 51 on which a coil 52 is wound is disposed around the fixed core 21. A body 22 is disposed around the bobbin 51. A connector 24 is formed of resin and disposed around the fixed core 21. A connecting wire 25 is connected to the coil 52 and embedded in the connector 24. A seal 27 is disposed in a region 26 that is surrounded by the fixed core 21, the connector 24 and the body 22, with the connecting wire 25 running through the seal 27.

摘要翻译： 可动芯31可以相对于固定芯21移动。线圈52缠绕在其上的线轴51围绕固定芯21设置。主体22围绕线轴51设置。连接器24由树脂和 设置在固定芯21周围。连接线25连接到线圈52并嵌入连接器24中。密封件27设置在由固定芯21，连接器24和主体22包围的区域26中， 连接线25穿过密封件27。

公开(公告)号：US5224458A

公开(公告)日：1993-07-06

申请号：US953936

申请日：1992-09-30

申请人： Takashi Okada ,  Toshiro Makimura ,  Kaneo Imamura

发明人： Takashi Okada ,  Toshiro Makimura ,  Kaneo Imamura

IPC分类号： F02M51/08 ,  F02M67/12 ,  F02M69/00 ,  F02M69/04 ,  F02M69/08

CPC分类号： F02M67/12 ,  F02M69/045 ,  F02M69/047 ,  F02M69/08

摘要： A fuel injector of the type in which a valve hole is opened and closed by a valve so as to intermittently inject pressurized fuel from the valve hole includes a distributing adapter fixedly attached to a front end of the valve hole, and an air adapter fixedly attached to a front end of the distributing adapter. The air adapter is formed with a plurality of guide holes directed to a plurality of intake ports of the engine, respectively, and assist air passages each communicating laterally with a corresponding one of the guide holes. The distributing adapter is formed with distributing holes of the same number as the guide holes, each of the distributing holes extending between the valve hole and a corresponding one of the guide holes.

摘要翻译： 一种燃料喷射器，其中阀孔由阀打开和关闭以便从阀孔间歇地喷射加压燃料的类型的燃料喷射器包括固定地附接到阀孔前端的分配适配器，以及固定地连接 到分配适配器的前端。 空气适配器形成有分别引导到发动机的多个进气口的多个引导孔，并且辅助空气通道，每个空气通道与相应的一个引导孔横向连通。 分配适配器形成有与导向孔相同数量的分配孔，每个分配孔在阀孔和对应的一个引导孔之间延伸。

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：US06336621B1

公开(公告)日：2002-01-08

申请号：US09507921

申请日：2000-02-22

申请人： Seiji Ii ,  Hideki Ito ,  Hiroshi Kawazoe ,  Toshiro Makimura

发明人： Seiji Ii ,  Hideki Ito ,  Hiroshi Kawazoe ,  Toshiro Makimura

IPC分类号： F16K3102

CPC分类号： F16K31/0655 ,  F02M51/0667 ,  F02M61/16 ,  F02M61/20 ,  F02M2200/306 ,  F16K31/0651

摘要： A fuel injection port 21 formed in a seat 20 is opened and closed by a movable valve 14 supported by a flat spring 16. The movable valve 14 is biased by an elastic force of a coil spring 26 in a direction that closes the fuel injection port 21. When electric power is supplied to a solenoid coil 4, the movable valve 14 is moved to a direction that opens the fuel injection port 21 as a result of an electromagnetic attraction force between a magnetic circuit M for generating an electromagnetic attraction force and the movable valve 14. Air gaps G0, G1 and G2 are formed within the fuel injection port and permeance ratios between the air gaps may be set to optimal values.

摘要翻译： 形成在座椅20中的燃料喷射口21由支撑在板簧16上的可动阀14打开和关闭。可动阀14由螺旋弹簧26的弹力沿关闭燃料喷射口 当向螺线管线圈4供电时，由于用于产生电磁吸引力的磁路M与电磁吸引力之间的电磁吸引力，可动阀14向打开燃料喷射口21的方向移动， 空气间隙G0，G1和G2形成在燃料喷射口内，气隙之间的磁导率可以设定为最佳值。

公开(公告)号：US5062573A

公开(公告)日：1991-11-05

申请号：US496317

申请日：1990-03-20

申请人： Toshiro Makimura

发明人： Toshiro Makimura

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

CPC分类号： F02M61/1806 ,  F02M51/0675 ,  F02M51/0682 ,  F02M2051/08 ,  Y10S239/90

摘要： An electromagnetic fuel injector including an injector body, a valve housing mounted in a front portion of the injector body and having an injection hole at a front end thereof, a solenoid coil mounted in a rear portion of the injector body, a valve axially movably received in the valve housing, an armature fixed to a rear end portion of the valve, a spring for normally biasing the valve in a valve closing direction, and a nozzle mounted to the front end of the valve housing and having a plurality of atomizer holes communicated with the injection hole of the valve housing. The valve is reciprocated by a magnetic attraction force due to excitation of the solenoid coil and a reaction force of the spring to thereby intermittently inject fuel from the injection hole. An atomizer plate is provided between the nozzle and the injection hole. The atomizer plate has a fuel colliding portion against which the fuel injected from the injection hole collides.

摘要翻译： 一种电磁燃料喷射器，包括喷射器主体，安装在喷射器主体的前部并且在其前端具有喷射孔的阀壳体，安装在喷射器主体后部的螺线管线圈，轴向可移动地接收的阀 在阀壳体中，固定到阀的后端部的电枢，用于在阀关闭方向上正常地偏压阀的弹簧和安装在阀壳体的前端并具有连通的多个雾化器孔的喷嘴 与阀壳的注射孔。 阀由于螺线管线圈的激励和弹簧的反作用力而被磁吸引力往复运动，从而间歇地从喷射孔喷射燃料。 在喷嘴和喷射孔之间设置雾化板。 雾化器板具有燃料碰撞部分，从喷射孔喷射的燃料与其碰撞。

公开(公告)号：US20060027682A1

公开(公告)日：2006-02-09

申请号：US11175276

申请日：2005-07-07

申请人： Tsuneaki Aoki ,  Toshiro Makimura

发明人： Tsuneaki Aoki ,  Toshiro Makimura

IPC分类号： F02M47/02 ,  F02M63/00 ,  F02M51/00 ,  F02M59/00

CPC分类号： F02M51/0682 ,  F02M2200/30 ,  F02M2200/306

摘要： The fuel injector may comprise a valve (25) body, a valve (25) seat, a core (21), and a valve (25). The valve (25) body may have a fuel path. The valve (25) seat may be attached to the downstream end of the valve (25) body and have a fuel injection hole. The core (21) may be attached to the valve (25) body. The valve (25) may be slidably disposed within the valve (25) body and be able to reciprocate between an open position and a closed position. The valve (25) may have an armature on one end and a ball on the other end. The upstream end surface of the armature contacts with the downstream end surface of the core (21) when the valve (25) is in the open position. The ball closes off the fuel injection hole in the valve (25) seat when the valve (25) is in the closed position. At least one of the upstream end surface of the armature or the downstream end surface of the core (21) may be partially plated, and recesses and protrusions are preferably formed by the plated regions and the non-plated regions.

摘要翻译： 燃料喷射器可以包括阀（25）主体，阀（25）座，芯（21）和阀（25）。 阀（25）主体可以具有燃料通路。 阀（25）座可以附接到阀（25）主体的下游端并具有燃料喷射孔。 芯（21）可以附接到阀（25）主体。 阀（25）可以可滑动地设置在阀（25）主体内并且能够在打开位置和关闭位置之间往复运动。 阀（25）可以在一端具有电枢，另一端可以具有球。 当阀（25）处于打开位置时，电枢的上游端表面与芯（21）的下游端表面接触。 当阀（25）处于关闭位置时，球关闭阀（25）座中的燃料喷射孔。 电枢的上游端面或芯部（21）的下游侧端面中的至少一方可以是部分电镀的，凹部和凸部优选地由电镀区域和非电镀区域形成。

公开(公告)号：US06343751B1

公开(公告)日：2002-02-05

申请号：US09510523

申请日：2000-02-22

申请人： Hideki Ito ,  Seiji Ii ,  Hiroshi Kawazoe ,  Toshiro Makimura

发明人： Hideki Ito ,  Seiji Ii ,  Hiroshi Kawazoe ,  Toshiro Makimura

IPC分类号： F02M5100

CPC分类号： F16K31/0655 ,  F02M51/0667 ,  F02M61/16 ,  F02M61/20 ,  F02M2200/306 ,  F16K31/0651

摘要： A fuel injection port 21 formed in a seat 20 is opened and closed by a movable valve 14 supported by a flat spring 16. The movable valve 14 is biased by an elastic force of a coil spring 26 in a direction that closes the fuel injection port 21. When electric power is supplied to a solenoid coil 4, the movable valve 14 is moved to a direction that opens the fuel injection port 21 as a result of an electromagnetic attraction force between a magnetic circuit M for generating an electromagnetic attraction force and the movable valve 14. Air gaps G0, G1 and G2 are formed within the fuel injection port and permeance ratios between the air gaps may be set to optimal valves.

摘要翻译： 形成在座椅20中的燃料喷射口21由支撑在板簧16上的可动阀14打开和关闭。可动阀14由螺旋弹簧26的弹力沿关闭燃料喷射口 当向螺线管线圈4供电时，由于用于产生电磁吸引力的磁路M与电磁吸引力之间的电磁吸引力，可动阀14向打开燃料喷射口21的方向移动， 空气间隙G0，G1和G2形成在燃料喷射口内，气隙之间的磁导率可以设定为最佳阀。