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    • 78. 发明申请
    • ELECTROMAGNETIC VALVE
    • 电磁阀
    • WO2011097392A3
    • 2011-11-17
    • PCT/US2011023621
    • 2011-02-03
    • KELSEY HAYES COFERGUSON TIMDOYLE WILLIAMCOLLINS DAVID E
    • FERGUSON TIMDOYLE WILLIAMCOLLINS DAVID E
    • F16K31/06F16K27/00H01F7/16
    • F16K27/0245B60T8/363B60T8/4872F16K27/029F16K31/0665
    • An electromagnetic valve (32) for use in controlling fluid flow between first and second passageways (P1, P2) in a hydraulic valve block (4), includes a valve body (51). The valve body (51) defines a central axis (A), has a central opening (51A) therethrough, has a lower end (54) adapted to be inserted into a bore (19) of the valve block (4), and is provided with a lower cylindrical opening (70). An armature (56) is axially moveable within the valve body (51) and is biased by a spring in one axial direction (57A). A closing element (88) is carried by a lower end (54) of the armature (56). An electromagnetic coil (64) coaxially surrounds the armature (56) and is operable to effect axial movement of the armature (56) in an axial direction opposite the one direction (57B). A valve seat member (62) is carried by the lower end (54) of the valve body (51) and has an orifice (98) providing fluid flow between the first and second valve block passageways (P1, P2). The valve seat member (62) defines a valve seat (96) surrounding the orifice (98) and cooperates with the closing element (88) for selectively closing the orifice (98). The valve seat member (62) includes a cylindrical tubular portion (90) frictionally retained in the lower cylindrical opening (70) of the valve body (51). The lower cylindrical opening (70) of the valve body (51) is provided with a stop surface (68) at the upper end of thereof, and an upper part (92) of the cylindrical portion (90) of the valve seat member (62) includes a flange (100) engageable with the stop surface (68) for limiting downward movement of the valve seat member (62) relative to the valve body (51).
    • 一种用于控制液压阀块(4)中的第一和第二通道(P1,P2)之间的流体流动的电磁阀(32)包括阀体(51)。 阀体(51)限定中心轴线(A),其中心开口(51A)穿过其中,具有适于插入阀块(4)的孔(19)中的下端(54),并且是 设置有下圆柱形开口(70)。 电枢(56)可在阀体(51)内轴向移动,并在一个轴向(57A)上被弹簧偏压。 闭合元件(88)由电枢(56)的下端(54)承载。 电磁线圈(64)同轴地围绕电枢(56)并且可操作以在与一个方向(57B)相反的轴向方向上实现电枢(56)的轴向运动。 阀座构件(62)由阀体(51)的下端(54)承载,并且具有在第一和第二阀座通道(P1,P2)之间提供流体流动的孔口(98)。 阀座构件(62)限定围绕孔口(98)的阀座(96)并与闭合元件(88)协作以选择性地关闭孔口(98)。 阀座构件(62)包括摩擦地保持在阀体(51)的下圆筒形开口(70)中的圆柱形管状部分(90)。 阀体(51)的下圆筒形开口(70)在其上端设有止动面(68)和阀座构件的圆筒部(90)的上​​部(92) 62)包括可与止动表面(68)接合的凸缘(100),用于限制阀座构件(62)相对于阀体(51)的向下运动。