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    • 3. 发明授权
    • Electromagnetic fuel injection valve
    • 电磁燃油喷射阀
    • US09194346B2
    • 2015-11-24
    • US13384652
    • 2010-05-21
    • Yoichi NakajimaKenichi SaitoKazuhiko Sato
    • Yoichi NakajimaKenichi SaitoKazuhiko Sato
    • F02M63/00F02M51/06B23K33/00F02M61/16
    • F02M51/0675B23K33/006F02M51/005F02M61/168F02M2200/8084
    • In an electromagnetic fuel injection valve including a magnetic coil housing (31) having a coil assembly (28) housed therein, the coil housing (31) includes the first and second coil housing half bodies (31a, 31b) whose cross sections are each shaped like an inferior arc, and which are oppositely disposed so as to interpose the coil assembly (28) and a coupler (34), each of the coil housing half bodies (31a, 31b) includes: a barrel portion (44) for covering an outer peripheral surface of the coil assembly (28); a front-end wall portion (45) and a rear-end wall portion (46) which are in contact with front-end and rear-end surfaces of the coil assembly (28); a front connection cylindrical portion (47) welded to the outer peripheral surface of the magnetic cylindrical body (4); and a rear connection cylindrical portion (48) welded to the outer peripheral surface of the fixed core (5); both the coil housing half bodies are formed symmetrically; and one half part and the other half part of each of the coil housing half bodies (31a, 31b) in an axial direction are formed symmetrically. Thus, it is possible to provide an electromagnetic fuel injection valve which enables the coil housing to be formed from two identical components, and is inexpensive and good in assembling efficiency, as well as has a better magnetic efficiency.
    • 在包括具有容纳在其中的线圈组件(28)的电磁线圈壳体(31)的电磁燃料喷射阀中,线圈壳体(31)包括第一和第二线圈壳体半体(31a,31b),其横截面各自成形 类似于下弧,并且相对地设置成插入线圈组件(28)和联接器(34),每个线圈壳体半体(31a,31b)包括:筒部(44),用于覆盖 线圈组件(28)的外周面; 与线圈组件(28)的前端和后端表面接触的前端壁部分(45)和后端壁部分(46); 焊接到磁性圆筒体(4)的外周面的前连接筒部(47); 以及焊接到所述固定铁心(5)的外周面的后连接圆筒部(48)。 线圈壳半体均对称形成; 线圈壳体半体(31a,31b)的轴向的一半部分和另一半部对称地形成。 因此,可以提供一种电磁燃料喷射阀,其能够使线圈壳体由两个相同的部件形成,并且便宜并且组装效率好,并且具有更好的磁效率。
    • 4. 发明授权
    • Fuel injection valve mounting structure
    • 燃油喷射阀安装结构
    • US08826890B2
    • 2014-09-09
    • US13259279
    • 2010-05-21
    • Kazuhiko Sato
    • Kazuhiko Sato
    • F02M61/14F02M55/02F02M69/46F02M51/06
    • F02M61/145F02M51/061F02M55/02F02M69/465F02M2200/852F02M2200/855
    • A covering body (10) made of a synthetic resin and including a rear shoulder part (16) oriented toward a fuel inlet part (6) side is formed around an outer periphery of an intermediate portion in an axial direction of a fuel injection valve (I). The rear shoulder part (16) includes: a first semicircular shoulder part (16a) extending over a half periphery of the covering body (10); a second semicircular shoulder part (16b) shifted in the axial direction with respect to the first semicircular shoulder part (16a) and extending over the other half periphery of the covering body (10); and a standing wall (16c) standing to connect the first and second semicircular shoulder parts (16a, 16b). On a front end of a fuel supply cap (20), a semicircular holding surface (28b) holding at least one of the first and second semicircular shoulder parts (16a, 16b) to prevent the fuel injection valve (I) from being fallen off from the mounting hole (2), and a rotation stopper surface (28c) abutting against the standing wall (16c) to prevent rotation of the fuel injection valve (I) are formed. Accordingly, it is possible to provide a fuel injection valve mounting structure including positioning means capable of firmly restricting an orientation of a coupler in a given direction without forming projections on a fuel injection valve and a fuel supply cap.
    • 在燃料喷射阀的轴向上的中间部的外周形成由合成树脂构成的包括朝向燃料入口部(6)侧定向的后肩部(16)的覆盖体(10) 一世)。 后肩部(16)包括:在覆盖体(10)的半周上延伸的第一半圆形肩部(16a); 第二半圆形肩部(16b)相对于第一半圆形肩部(16a)沿轴向移动并在覆盖体(10)的另一半周边延伸; 以及站立用于连接第一和第二半圆形肩部(16a,16b)的立壁(16c)。 在燃料供给盖(20)的前端,保持第一和第二半圆形肩部(16a,16b)中的至少一个的半圆形保持面(28b),以防止燃料喷射阀(I)脱落 形成与安装孔(2)相对的转动停止面(28c),与止动壁(16c)抵接以防止燃料喷射阀(I)旋转。 因此,可以提供一种燃料喷射阀安装结构,其包括能够在给定方向上牢固地限制联接器的定向而不在燃料喷射阀和燃料供给盖上形成突起的定位装置。
    • 6. 发明申请
    • ELECTROMAGNETIC FUEL INJECTION VALVE
    • 电磁燃油喷射阀
    • US20120160938A1
    • 2012-06-28
    • US13386470
    • 2010-05-21
    • Kenichi SaitoKazuhiko Sato
    • Kenichi SaitoKazuhiko Sato
    • F02M51/08
    • F02M51/0646F02M51/0632F02M51/065F02M51/0657F02M51/0682F02M61/188Y10S239/90
    • In an electromagnetic fuel injection valve, a valve body guide hole (15) which is connected to a valve seat (8) of a valve seat member (3) and slidably guides a valve body (14), and a large-diameter hole (17) which is connected to a rear end of the valve body guide hole (15) via a tapered hole (16) and has a diameter larger than that of the valve body guide hole (15), are provided in the valve seat member (3) of a valve housing (2), whereas a first longitudinal hole (19) which communicates with a fuel intake cylinder (26) is provided in a fixed core (5); a second longitudinal hole (20) which communicates with the first longitudinal hole (19) is provided from a movable core (12) to a valve shaft (13); a traverse hole (21) which opens the second longitudinal hole (20) to the large-diameter hole (17) is provided in the valve shaft (13); and a relationship between the diameter (D1) of the large-diameter hole (17) and the diameter (D2) of the valve body guide hole (15) satisfies D2/D1
    • 在电磁燃料喷射阀中,与阀座构件(3)的阀座(8)连接并可滑动地引导阀体(14)的阀体导向孔(15)和大直径孔 17),其经由锥形孔(16)连接到阀体导向孔(15)的后端并且具有比阀体导向孔(15)的直径大的直径,设置在阀座构件( 而在一个固定铁芯(5)中设有一个与燃油进气缸(26)连通的第一纵向孔(19); 与第一纵向孔(19)连通的第二纵向孔(20)由可动芯(12)提供给阀轴(13); 在所述阀轴(13)上设置有向所述大直径孔(17)打开所述第二纵向孔(20)的横动孔(21)。 并且大直径孔(17)的直径(D1)与阀体导孔(15)的直径(D2)之间的关系满足D2 / D1 <0.6。 因此,可以提供一种电磁燃料喷射阀,该电磁燃料喷射阀以良好的状态使注入的燃料雾化并且尺寸紧凑。