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    • 2. 发明授权
    • Solenoid actuated valve assembly
    • 电磁阀驱动阀组件
    • US5947442A
    • 1999-09-07
    • US927011
    • 1997-09-10
    • Rodney M. ShurmanEdward B. ManringDavid L. BurtChafic HammoudGeorge L. Muntean
    • Rodney M. ShurmanEdward B. ManringDavid L. BurtChafic HammoudGeorge L. Muntean
    • F02M59/46F02M63/00F16K31/06
    • F16K31/0696F02M63/0017F02M63/0019F02M63/0022F02M63/0075F02M63/022F02M2200/304
    • A compact fluid flow control valve is provided which effectively and predictably controls the flow of fluid using a minimum number of components to permit inexpensive manufacture and assembly. The control valve includes a one-piece valve plunger guide and stop which extends through an aperture formed in a stator of the solenoid assembly. The valve plunger guide and stop includes an integral guide surface for guiding the valve plunger through reciprocal movement within the aperture of the stator, an integral stop surface positioned for abutment by the valve plunger when in the energized position to define a minimum air gap between an armature and the stator. The one-piece valve plunger guide and stop reduces the number of parts of the control valve to achieve simplicity in structure and lower costs while avoiding the need for a shim to set the minimum air gap. The present control valve also includes a plunger overtravel impact limiting device including a movable valve head and a hydraulic damping device. The hydraulic damping device includes a fluid passage formed between a portion of the valve plunger assembly and the valve housing. The velocity of the valve plunger assembly is substantially decreased as the valve plunger assembly squeezes fuel from the fluid passage during movement of the valve plunger toward the closed position. The plunger overtravel impact limiting device effectively reduces valve seat wear and valve bounce.
    • 提供了一种紧凑的流体流量控制阀,其使用最少数量的部件有效且可预测地控制流体的流动,从而允许廉价的制造和组装。 控制阀包括一个整体的阀柱塞导向件和止动件,其延伸穿过形成在螺线管组件的定子中的孔。 阀柱塞导向件和止动件包括整体引导表面,用于通过在定子的孔内往复运动来引导阀柱塞,一体式止挡表面定位成在处于通电位置时与阀柱塞邻接,以限定最小气隙 电枢和定子。 一体式阀柱塞导向件和止动件减少了控制阀的部件数量,从而实现了结构简单性和降低成本,同时避免了垫片设置最小气隙的需要。 本控制阀还包括柱塞超行程冲击限制装置,其包括可动阀头和液压阻尼装置。 液压阻尼装置包括形成在阀柱塞组件的一部分和阀壳体之间的流体通道。 阀柱塞组件的速度基本上减小,因为阀活塞组件在阀柱塞向关闭位置移动期间从流体通道挤压燃料。 柱塞超程冲击限制装置有效减少阀座磨损和阀门反弹。