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1. 发明申请

WO2015009922A1 BISTABLE DIRECTIONAL CONTROL VALVE WITH MANUAL OVERRIDE FOR A THIRD INTERMEDIATE POSITION 审中-公开
标题翻译：用于第三个中间位置的双向手动控制阀
公开(公告)号：WO2015009922A1
公开(公告)日：2015-01-22
申请号：PCT/US2014/047013
申请日：2014-07-17
申请人： DRESSER, INC.
发明人： STROBEL, Lee, Richard
IPC分类号： F15B13/04 , F16K31/14 , F15B13/043
CPC分类号： F15B13/0402 , F15B13/0431 , F15B2013/0412 , F16K11/07 , F16K31/14 , F16K31/143 , F16K31/426 , F16K31/44 , Y10T137/86582 , Y10T137/86614
摘要： Embodiments of a directional valve assembly (300) that provides a single device with functionality of a two-position design for automated operation and functionality of a three-position design for manual operation. The embodiments can include a housing (354) with a piston chamber (374) and a spool member (362) that transits in the housing to regulate the flow of a working fluid to a cylinder. The embodiments can also have one or more pilot operators (378, 380) that regulate the flow of pilot air into the piston chamber to move the spool member between two positions, i.e., two open positions. The embodiments can also have a manual operator (e.g., a lever (350) ) that can move the spool to the open positions and to a closed position. In one embodiment, the spool member is configured to remain in either a first position, a second position, or a third position in the absence of an outside stimulus on the pilot operators.
摘要翻译：方向阀组件（300）的实施例，其提供单个装置具有用于自动操作的两位置设计的功能和用于手动操作的三位置设计的功能。这些实施例可以包括具有活塞室（374）的壳体（354）和在壳体中转动的阀芯构件（362），以调节工作流体到气缸的流动。实施例还可以具有一个或多个先导操作器（378,380），其调节先导空气流入活塞室中的流动，以使卷筒构件在两个位置之间移动，即两个打开位置。这些实施例还可以具有能够将线轴移动到打开位置和关闭位置的手动操作器（例如，杠杆（350））。在一个实施例中，线轴构件被配置为在导频操作器上不存在外部刺激的情况下保持在第一位置，第二位置或第三位置。

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