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    • 2. 发明公开
    • Directly operated pneumatic valve having an air assist return
    • Rückhub的Direkt angetriebenes Pneumatikventil mitluftunterstütztemRückhub
    • EP1363054A2
    • 2003-11-19
    • EP02257769.6
    • 2002-11-08
    • Mac Valves Inc.
    • Neff, Robert
    • F16K31/06
    • F16K31/0613F16K31/0627F16K31/0634Y10S137/906Y10T137/86622
    • A direct operated valve assembly (10, 210, 310) is provided including a valve body (12, 212, 312) having a pressurized inlet port (30, 230, 330) in communication with a source of pressurized air, a cylinder port (32, 232, 332), a valve bore (36, 236, 336) extending axially within the valve body, and a valve member (46, 246, 346) supported within the valve bore and movable between predetermined positions within the valve bore to selectively direct pressurized air from said inlet port through the cylinder port. An actuator (14, 214, 314) is mounted to the valve body for moving the valve member in a first direction and a biasing member (66, 266, 366) is disposed between the valve member (46, 246, 346) and the valve body (12, 212, 312) to provide a biasing force to the valve member in an opposite direction. Also, an air-assist passage (94, 294, 394) is included for providing a source of pneumatic pressure that acts in combination with the biasing member (66, 266, 366) to operatively move the valve member (46, 246, 346) in a direction opposite to the movement induced by the actuator (14, 214, 314).
    • 提供了一种直接操作阀组件(10,210,310),其包括阀体(12,212,312),该阀体具有与加压空气源连通的加压入口端口(30,230,330),气缸端口 32,232,332),在阀体内轴向延伸的阀孔(36,236,336)和支撑在阀孔内的阀构件(46,246,346),并可在阀孔内的预定位置之间移动 选择性地将来自所述入口的加压空气直接通过气缸端口。 致动器(14,214,314)安装到阀体上,用于沿第一方向移动阀构件,并且偏压构件(66,266,366)设置在阀构件(46,246,346)和 阀体(12,212,312)以相反的方向向阀构件提供偏压力。 此外,包括空气辅助通道(94,294,394),用于提供与偏置构件(66,266,366)组合起作用的气动压力源,以可操作地移动阀构件(46,246,346) )与由致动器(14,214,314)引起的运动相反的方向。
    • 6. 发明公开
    • Piloted poppet valve
    • Fremdgesteuertes Tellerventil
    • EP2236876A3
    • 2014-07-09
    • EP10157644.5
    • 2010-03-24
    • MAC Valves, Inc.
    • Neff, RobertSimmonds, Jeffrey
    • F16K11/07F16K31/40
    • F16K11/07F16K11/0712F16K31/408Y10T137/86549Y10T137/86582Y10T137/86606Y10T137/86614Y10T137/86686Y10T137/86694Y10T137/8671
    • A valve assembly includes a valve body having a valve bore (32). A valve member (36) is slidably disposed within the valve bore between first and second stop positions. First and second valve elements (76,78) of the valve member have first and second sealing surfaces (80,82) equally angled with respect to a valve member longitudinal axis. Each of the first and second sealing surfaces (80,82) is oriented parallel with conical shaped first and second seat surfaces. Both first and second seat surfaces are equally angled with respect to the longitudinal axis and have an adjustable spacing such that the first sealing surface contacts the first seat surface and the second sealing surface contacts the second seat surface simultaneously in the first stop position.
    • 阀组件包括具有阀孔(32)的阀体。 阀构件(36)可滑动地设置在第一和第二停止位置之间的阀孔内。 阀构件的第一和第二阀元件(76,78)具有相对于阀构件纵向轴线等角度的第一和第二密封表面(80,82)。 第一和第二密封表面(80,82)中的每一个均与圆锥形的第一和第二座面平行。 第一和第二座表面相对于纵向轴线具有相同的角度并且具有可调节的间隔,使得第一密封表面接触第一座面,而第二密封表面在第一停止位置同时接触第二座面。