公开(公告)号：EP0094813A1

公开(公告)日：1983-11-23

申请号：EP83302733.7

申请日：1983-05-13

申请人： Warren Rupp-Houdaille, Inc.

发明人： Rupp, Warren E.

IPC分类号： F16K15/14

CPC分类号： F16K15/147 ,  Y10T137/7843 ,  Y10T137/7883 ,  Y10T137/7885

摘要： A check valve for controlling the flow of fluid through a passageway comprises an elastomeric valve element (21) that permits flow of fluid through the passageway in a downstream direction while preventing the flow of fluid in the upstream direction. The valve element (21) comprises a base portion (22) secured to the walls of the passageway and provided with an opening (27) through which fluid can flow. Flow of fluid is controlled by vanes (26) projecting downstream from the base portion (22), each vane (26) being flexibly connected to the base portion (22) and being movable about its line of connection between an open position in which ready flow of fluid in a forward direction is permitted, and a closed position in which the vanes (26) make sealing engagement with each other preventing upstream flow of fluid. The vanes are shaped to resist external pressures and a separate rigid supporting member (24) is provided comprising a base portion (23) secured, with the base portion (22) of the valve element (21), to the walls of the passageway. The rigid member includes a sleeve (39) which supports the vanes adjacent their zones of pivotal connection to the base portion (22) against external fluid pressure.

公开(公告)号：EP0104847B1

公开(公告)日：1987-01-21

申请号：EP83305447.1

申请日：1983-09-16

申请人： Warren Rupp-Houdaille, Inc.

发明人： Rupp, Warren E.

IPC分类号： F04B43/06 ,  F16K11/07

CPC分类号： F01L23/00 ,  F04B9/115 ,  F04B43/073

公开(公告)号：EP0104847A1

公开(公告)日：1984-04-04

申请号：EP83305447.1

申请日：1983-09-16

申请人： Warren Rupp-Houdaille, Inc.

发明人： Rupp, Warren E.

IPC分类号： F04B43/06 ,  F16K11/07

CPC分类号： F01L23/00 ,  F04B9/115 ,  F04B43/073

摘要： A fluid-operated reciprocating pump comprises a central housing (80), a pair of chamber housings (40,60) attached to opposite sides of the central housing, and a pumping diaphragm (55,75) in each chamber housing that separates an inner pressure chamber (57,77) from an outer pressure chamber (56,76). Each outer pressure chamber is connected to an inlet manifold (43,63) and a discharge manifold (44,64), and one-way check valves (25,26) control the flow of the material being pumped through the chambers. The pumping diaphragms (55,75) are connected together by a connecting rod (101) that extends through the central housing. The central housing defines inlet and outlet ports (85,86) for operating fluid, a reversing valve chamber (89), a pilot valve chamber (95), and passages (97,98,91,92,93,94) connecting'. the reversing valve chamber to the pilot valve chamber, the inlet port, the outlet port and the inner pressure chambers (57,77). A reversing valve (90) is slidably mounted in the reversing valve chamber (89) to control the supply of operating fluid to alternate from one inner chamber to the other, and a pilot valve (96) is slidably mounted in the pilot valve chamber to control the movement of the reversing valve (90). The pilot valve is controlled by a pair of pivotally mounted lever assemblies (110,120) engaged and pivoted by the connecting rod (101) and located within the central housing, each lever assembly (110,120) comprising one lever arm (114,124) which is engagable by means (118) on the connecting rod (101) and another arm (115,125) which Is arranged to engage an end of the pilot valve (96).