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    • 3. 发明授权
    • Method and apparatus for producing rotationally symmetrical valve seat faces of high surface quality in valves
    • 用于制造阀门表面质量高的旋转对称阀座面的方法和装置
    • US06178637B2
    • 2001-01-30
    • US08913631
    • 1997-09-19
    • Stefan HeroldOliver Kirsten
    • Stefan HeroldOliver Kirsten
    • B21D5310
    • B24B39/02B23P9/02Y10T29/49409Y10T29/49895
    • In known methods for producing rotationally symmetrical valve seat faces, the valve closing body is brought into contact with the valve seat face of the valve seat body, set into a rotary motion, and set parallel to the rotary axis into an oscillating motion of high frequency. When the valve is assembled, care must then be taken that this pairing of the valve closing body and the valve seat body is preserved. In the novel method, the valve seat body is inserted into a receiving body and fixed by means of a tappet. A spherical tool body engages the valve seat face of the valve seat body with a contact pressure force and rotates in a rotary direction that is opposite a rotary direction of the valve seat body. The valve seat body axis and the tool body rotary axis are inclined relative to one another, so that a lubricant introduced can constantly build up a film of lubricant between the tool body and the valve seat face, and an elastic deformation ensures in the valve seat face, producing a relatively broad smoothing trace without significant indentation. The method and the apparatus are especially well suited to machining valve seat faces of fuel injection valves for fuel injection systems of internal combustion engines.
    • 在用于制造旋转对称的阀座面的已知方法中,阀关闭体与阀座主体的阀座面接触,设置成旋转运动,并且平行于旋转轴设置成高频振荡运动 。 当组装阀时,必须注意阀体和阀座体的配对是保持的。 在新颖的方法中,将阀座体插入接收体中并通过挺杆固定。 球形工具主体以接触压力与阀座主体的阀座面接合并沿与阀座主体的旋转方向相反的旋转方向旋转。 阀座主体轴线和工具体旋转轴线相对于彼此倾斜,从而引入的润滑剂可以在工具主体和阀座面之间不断地形成润滑剂膜,并且弹性变形确保阀座 面部,产生相对较宽的平滑迹线而没有显着的缩进。 该方法和装置特别适用于加工用于内燃机燃料喷射系统的燃料喷射阀的阀座面。
    • 4. 发明授权
    • Fuel injection valve
    • 燃油喷射阀
    • US06170767B2
    • 2001-01-09
    • US09367621
    • 1999-11-03
    • Stefan HeroldGeorg Fischer
    • Stefan HeroldGeorg Fischer
    • B05B130
    • F02M51/0685F02M2200/306
    • A fuel injection valve for fuel injection systems of internal combustion engines, in particular for direct injection of fuel into a combustion chamber of an internal combustion engine, has a magnet coil, an armature that can be moved by the magnet coil in a linear stroke direction toward a first return spring, and a valve needle joined to a valve closure element. In the linear stroke direction, the armature engages positively on the valve needle. In the opposite direction, the armature is freely movable independently of the valve needle toward a second return spring. The armature is bearing-mounted on the valve needle by way of at least one slide bearing having several balls.
    • 用于内燃机的燃料喷射系统的燃料喷射阀,特别是用于将燃料直接喷射到内燃机的燃烧室中的燃料喷射阀具有磁体线圈,可以通过磁体线圈在线性行程方向上移动的电枢 朝向第一复位弹簧,以及连接到阀关闭元件的阀针。 在线性行程方向上,电枢正确地接合在阀针上。 在相反的方向上,电枢可独立于阀针朝向第二复位弹簧自由移动。 电枢通过具有多个球的至少一个滑动轴承而轴承安装在阀针上。