公开(公告)号：EP0185261A1

公开(公告)日：1986-06-25

申请号：EP85115468.2

申请日：1985-12-05

申请人： NORTHERN ENGINEERING INDUSTRIES PLC

发明人： Wilkin, Geoffrey Alan

IPC分类号： G01F3/20 ,  G01F3/22

CPC分类号： G01F3/222 ,  G01F3/20 ,  G01F3/22

摘要： Fluid operable apparatus has diaphragms 12, 14 reciprocable by fluid in respective chambers 16, 18. Respective sets of valves 144A, B, E, F; 144C, D. G. H are operable in response to movements of the second and first diaphragms 14, 12, respectively, to effect changeovers of fluid flow paths to and from the chambers 16, 18, respectively. First and second detents 110, 116 which have respective curvilinear mutually engageable surfaces, are reciprocable by respective diaphragms 12, 14 along paths which intersect one another. The motions of the detents 110, 116 relative to each other are orbits each about the other whereby changeover of the flow paths of either chamber 16, 18 is prevented unless the diaphragm 12, 14 reaches the end of its stroke preceding that changeover. Stops are provided to determine the maximum strokes of the diaphragms 12, 14.

摘要翻译： 流体可操作装置具有可通过相应腔室16,18中的流体往复运动的隔膜12,14。各组阀144A，B，E，F; 144C，D.G.H.分别可响应于第二和第一隔膜14,12的运动而工作，以分别实现到和从腔室18,18流出的流体路径的转换。 具有相应的曲线可相互接合的表面的第一和第二棘爪110,116可通过相应的隔膜12,14沿彼此相交的路径往复运动。 棘爪110,116相对于彼此的运动是围绕彼此的轨道，由此可以防止任何一个腔室16,18的流动路径的转换，除非隔膜12,14在其切换之前到达其行程的末端。 提供止动件以确定隔膜12,14的最大冲程。