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发明授权
CN105972254B 多路阀 有权

多路阀
摘要：
本发明涉及一种多路阀。提出一种装备有控制活塞（16）的多路阀（1），其中，控制活塞（16）具有空心柱形的周面壁（27），该周面壁分成多个闭锁段（42）和溢流段（43）。每个溢流段（43）拥有至少一个关于相邻的闭锁段（43）径向凹入的溢流凹处（45）。溢流凹处（45）构造成空心柱形的周面壁（27）的窗口状的壁裂口（44）且分别通入由周面壁（27）包围的活塞空腔（32）。周面壁（27）的柱形的壁外表面（28）不仅在闭锁段（42）上而且也在溢流段（43）上延伸。在相应的切换位置中，流体可通过溢流段（43）和活塞空腔（32）在容纳控制活塞（16）的壳体凹槽（3）的轴向相邻的凹槽段（13）之间溢流。
摘要（英）：

The invention relates to a multi-port valve. The multi-port valve (1) comprises a control piston (16), wherein the control piston (16) comprises a peripheral wall (27) in a hollow column shape, and the peripheral wall can be divided into a plurality of locked segments (42) and overflow segments (43). Each overflow segment (43) comprises at least one overflow concave part (45) related to the adjacent segment (43) incurvating in radial direction. The overflow concave parts (45) form window-shaped wall cracks (44) of the peripheral wall (27) in a hollow column shape and are separately communicated by a piston cavity (32) surrounded by the peripheral wall (27). The colunmn-shaped external surface of the wall (28) of the peripheral wall (27) can extend on the locked segments (42) and the overflow segments (43). In corresponding switching position, fluid can pass through the overflow segments (43) and the piston cavity (32) and overflows between the axial adjacent groove segments (13) for holding a shell groove (3) of the control piston (16).

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