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公开(公告)号:WO2017001489A1
公开(公告)日:2017-01-05
申请号:PCT/EP2016/065164
申请日:2016-06-29
Applicant: EATON LIMITED
Inventor: SINGH, Rajesh Kumar , KULKARNI, Aniruddha Mukund , DAWSON, Clive , PRODAN, Adrian
CPC classification number: F16K11/07 , F16K11/0708 , F16K27/041
Abstract: A spool valve arrangement is described comprising a spool (12) axially moveable along a passage formed in a housing (14) to control communication between ports opening into the passage, and an anti-rotation arrangement (32) operable to resist rotation of the spool (12) relative to the housing (14), wherein the anti-rotation arrangement (32) comprises a roller (40) cooperable with the spool (12) and the housing (14) to resist rotation of the spool (12) relative to the housing (14), the roller (40) being supported such that it extends substantially perpendicularly to the axis of the spool (12). An arrangement is also described in which the spool (12) defines a pair of lands (18a, 18b) cooperable with the housing (14) to define a chamber (20a) therebetween in constant communication with a first port (22) provided in the housing (14) throughout a range of movement of the spool (12) relative to the housing (14), cooperation between at least one of the lands (18a, 18b) and the housing (14) controlling communication between the chamber (20a) and at least a second port (26a, 26b) provided in the housing (14), wherein a distribution step (44) is provided on a part of the spool (12) between the lands (18a, 18b) to enhance the uniformity of the fluid velocity within a part of the chamber (20a) adjacent the said at least one of the lands (18a, 18b).
Abstract translation: 描述了一种滑阀装置,其包括可沿着形成在壳体(14)中的通道轴向移动的线轴(12),以控制通向通道的端口之间的连通;以及防止旋转装置(32),其可操作以阻止线轴 (12)相对于所述壳体(14),其中所述防旋转装置(32)包括与所述线轴(12)和所述壳体(14)配合的辊(40),以抵抗所述线轴(12)相对于所述壳体 所述壳体(14),所述辊(40)被支撑成使得其基本上垂直于所述线轴(12)的轴线延伸。 还描述了一种装置,其中,所述线轴(12)限定与所述壳体(14)配合的一对平台(18a,18b),以在其间限定腔室(20a),所述腔室(20a)与设置在所述壳体 在所述线轴(12)相对于所述壳体(14)的整个移动范围内的壳体(14)之间的至少一个之间的协作,所述至少一个所述平台(18a,18b)和所述壳体(14) 以及设置在所述壳体(14)中的至少第二端口(26a,26b),其中在所述平台(18a,18b)之间的所述线轴(12)的一部分上设置分配台阶(44) 所述腔室(20a)的与所述至少一个脊部(18a,18b)相邻的部分内的流体速度。