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    • 50. 发明公开
    • SOLENOID VALVE FOR VARIABLE DISCHARGE FUEL SUPPLY APPARATUS
    • ELEKTROMAGNETISCHES VENTILFÜREINE VARIABLE BRENNSTOFFABGABE
    • EP1312790A1
    • 2003-05-21
    • EP00954988.2
    • 2000-08-24
    • MITSUBISHI DENKI KABUSHIKI KAISHA
    • ONISHI, Yoshihiko, Mitsubishi Denki K. K.OJIMA, Kouichi, Mitsubishi Denki K. K.
    • F02M51/00F02M59/36F16K31/06F16K1/34
    • F16K31/0658F02M55/04F02M59/366F02M59/466F02M63/0225F04B49/24
    • The object of the present invention is to provide an electromagnetic valve for a variable discharge fuel supply apparatus with improved relief property and high-responsiveness, a small electromagnetic valve, reduced electric current consumption and increased responsiveness, wherein the valve seat has a valve seating surface present in a flat surface facing the direction of movement of the valve at substantially right angle, and the valve is provided with a flow path formed within the valve and a substantially ring-shaped flat landing surface that encircles the flow path within the valve and closes the flow path by coming into contact with the valve seating surface. The electromagnetic valve may be made to cause the outside of the valve to serve as a high pressure side and the flow path within the valve, as a low pressure side, and to cause both the landing surface of the valve and the valve seating surface of the valve seat to be in ring-shaped so that the valve and the valve seat come into contact only through the space between the outer boundary of the landing surface of the valve and the inner boundary of the valve seating surface of the valve seat. Further, the flow path may be formed in a place where it passes the vicinity of said electromagnetic solenoids at the downstream section of the valve. In addition, the flow path within the valve may extend piercing the valve to reach as far as the vicinity of the solenoid coils, and may be connected to the fuel flow path that is formed in the space between the valve outer boundary and the valve holder inner boundary and linked to the low pressure side, and the valve seat having the valve seating surface may be a part formed separately from the valve holder instead of the one united to the valve holder.
    • 发明内容本发明的目的在于提供一种具有改善的放电特性和高响应性的可变放电燃料供给装置的电磁阀,小的电磁阀,降低的电流消耗和增加的响应性,其中阀座具有阀座表面 存在于面向阀的运动方向基本上成直角的平坦表面中,并且阀设置有形成在阀内的流路和围绕阀内的流动通道并闭合的大致环形的平坦着陆面 通过与阀座表面接触的流路。 可以使电磁阀使得阀的外部用作高压侧和阀内的流动路径,作为低压侧,并且使阀的着陆面和阀座表面两者 阀座为环状,使得阀和阀座仅通过阀的着陆面的外边界与阀座的阀座表面的内边界之间的空间接触。 此外,流路可以形成在其通过阀的下游部分处的所述电磁螺线管附近的位置。 此外,阀内的流动路径可以延伸穿透阀以达到螺线管线圈附近,并且可以连接到形成在阀外边界和阀保持器之间的空间中的燃料流动路径 内部边界并且连接到低压侧,并且具有阀座表面的阀座可以是与阀保持器分开形成的部分,而不是与阀保持器结合的部分。