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公开(公告)号：EP1097304A1
公开(公告)日：2001-05-09
申请号：EP99933760.3
申请日：1999-07-07
CPC分类号： F04B7/0241 , F04B43/0736 , Y10T137/2544
摘要： An air driven double diaphragm pump has two opposed pumping cavities (16, 18) with diaphragms (20, 22) extending across the cavities. An actuator housing (10) includes a control valve assembly (52) having a control valve (76) to direct pressurized air to one or the other of the dual pumping cavities (16, 18) and two relief valves (116) which cooperate with the pump shaft position to release air from one end or the other of the control valve (76) for the shifting thereof. Shuttle valve elements (160) are positioned between the control valve (76) and the pumping chambers (16, 18). The shuttle valve elements are slidably positioned within the valve (162) to move between extreme positions under the pressures within the input and the pumping cavity. In one extreme position, the pumping cavity is in communication with an exhaust (168) having a tapered passage. In the other, the exhaust is cut off and pressurized air is able to pass through a one-way valve (178, 182) in a passageway (174) through the shuttle valve (160) element to charge the pumping chamber.
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公开(公告)号：EP0038618A1
公开(公告)日：1981-10-28
申请号：EP81300850.5
申请日：1981-03-02
CPC分类号： F01L25/06
摘要： An actuator valve for an air driven reciprocating device wherein the valve includes a control rod (92) responsive to movement of the reciprocating device and a valve piston (48) pneumatically actuated by movement of the control rod. The valve piston selectively directs air to reciprocate the driven mechanism. The control rod includes dual axial passageways (108,110) to selectively vent each end of the cylinder (50) within which the valve piston operates. The passageways are sealed such that unused pressurized air will not escape from the air valve.
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公开(公告)号：EP0018143A1
公开(公告)日：1980-10-29
申请号：EP80301083.4
申请日：1980-04-03
CPC分类号： F04B43/0736 , F01L25/066
摘要： A diaphragm pump has opposed pump cavities (29, 31), a pump drive assembly (10, 12, 14) between said cavities (29, 31) forming an inner wall of each of said cavities (29, 31), pump chamber housings (28, 30) meeting with said pump drive assembly (10, 12, 14) to form the outer wall of each of said cavities (29, 31), an inlet manifold (128) extending to and in communication with each of said cavities (29, 31) and an outlet manifold (136) extending to and in communication with each of said cavities (29, 31), said inlet and outlet manifolds (128, 136) being diametrically opposed.
Means (148) forcibly drawing said manifolds (128, 136) toward one another are provided and said manifolds (128, 136) and said pump chamber housings (28, 30) include mating surfaces there between lying in planes at an acute angle to the line of force drawing said manifolds toward one another, said manifold mating surfaces each being outwardly of each associated pump chamber housing mating surface.
The actuator valve comprises a valve piston (48), a control rod (15) fixed to reciprocate with the air driven reciprocating device, and a housing (36) having a cylinder (50) closed at each end and enclosing said valve piston (48), a passageway through which said control rod (15) extends, an air inlet (52) to said cylinder (50) spaced from the ends of said cylinder (50), valve piston vent passages (82, 84) extending from the ends of said cylinder (50) to said passageway, and control rod vent passages (112, 114) extending from said passageway to atmosphere, said valve piston (48) cooperating with said housing (36) to include means (78, 80) for directing incoming air to the ends of said valve piston (48) and means (58, 60) for selectively directing incoming air to and exhausting outgoing air from the air driven reciprocating device.
There is an axial passage (110) in said control rod (15) positioned between said valve piston vent passages (82, 84) to vent selectively each of said valve piston vent passages (82, 84) to said control rod vent passages (112. 114).摘要翻译： 隔膜泵具有相对的泵腔（29,31），位于所述空腔（29,31）之间的泵驱动组件（10,12,14），其形成每个所述空腔（29-31）的内壁，泵室壳体 （28,30），与所述泵驱动组件（10,12,14）相接触以形成每个所述空腔（29,31）的外壁;入口歧管（128），其延伸到每个所述空腔 （29,31）和延伸到每个所述空腔（29,31）并与之连通的出口歧管（136,312），所述入口歧管与出口歧管（128,136）直径相对。 提供了强制地将所述歧管（128,136）彼此拉伸的装置（148），并且所述歧管（128,136）和所述泵室壳体（28,30）包括配合表面，其间位于与所述歧管 所述多个歧管朝向彼此拉伸，所述歧管配合表面各自位于每个相关联的泵室外壳配合表面的外侧。 致动器阀包括阀活塞（48），与空气驱动的往复运动装置一起固定的往复运动的控制杆（15）和具有在每一端封闭的气缸（50）的壳体（36），并封闭所述阀活塞 ），所述控制杆（15）延伸穿过的通道，与所述气缸（50）的端部间隔开的所述气缸（50）的空气入口（52），从所述气缸的端部延伸的阀活塞排气通道（82,84） 所述气缸（50）到所述通道，以及从所述通道延伸到大气的控制杆通气通道（112,114），所述阀活塞（48）与所述壳体（36）协作以包括用于引导的装置（78,80） 进入所述阀活塞（48）的端部的进入空气和用于选择性地将进入的空气引导到空气驱动的往复运动装置的排出空气的装置（58,60）。 所述控制棒（15）中的轴向通道（110）位于所述阀活塞排气通道（82,84）之间，以便选择性地将所述阀活塞通气通道（82,84）中的每一个排出到所述控制杆通气通道（112） 114）。
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公开(公告)号：EP1097304B1
公开(公告)日：2003-10-01
申请号：EP99933760.3
申请日：1999-07-07
CPC分类号： F04B7/0241 , F04B43/0736 , Y10T137/2544
摘要： An air driven double diaphragm pump has two opposed pumping cavities (16, 18) with diaphragms (20, 22) extending across the cavities. An actuator housing (10) includes a control valve assembly (52) having a control valve (76) to direct pressurized air to one or the other of the dual pumping cavities (16, 18) and two relief valves (116) which cooperate with the pump shaft position to release air from one end or the other of the control valve (76) for the shifting thereof. Shuttle valve elements (160) are positioned between the control valve (76) and the pumping chambers (16, 18). The shuttle valve elements are slidably positioned within the valve (162) to move between extreme positions under the pressures within the input and the pumping cavity. In one extreme position, the pumping cavity is in communication with an exhaust (168) having a tapered passage. In the other, the exhaust is cut off and pressurized air is able to pass through a one-way valve (178, 182) in a passageway (174) through the shuttle valve (160) element to charge the pumping chamber.
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5.发明授权
公开(公告)号：EP0898652B1
公开(公告)日：2003-07-16
申请号：EP97924562.8
申请日：1997-05-01
IPC分类号： F04B43/06 , F04B43/073 , F16K15/02 , F16K15/18 , F01L25/06
CPC分类号： F04B43/0736 , Y10S137/903
摘要： An air driven diaphragm pump having two opposed pumping cavities (26). A center section assembly (104) between the pumping cavities includes a cylinder (108) and a power amplifier piston (124). The power amplifier piston as well as the diaphragms (88) are coupled with a common control shaft (116). A valve assembly (138, 144) is arranged with a manifold (162) to receive pressurized air and distribute that air in alternating fashion to the sides of the power amplifier piston as well as to each of the diaphragms. By directing pressure to a side of the power amplifier piston facing the same direction as the diaphragm receiving pressure, an amplified pressure on a pump chamber is experienced. With the power amplifier piston being approximately twice as large as the diaphragm assembly an amplification of three times the pressure on the pump chamber is experienced. Both pump chambers are able to operate to pump material.
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公开(公告)号：EP0859912B1
公开(公告)日：2001-12-19
申请号：EP96936952.9
申请日：1996-10-25
发明人： DUNCAN, Gregory, S.
CPC分类号： F01L25/063 , F04B43/0736 , Y10S91/02 , Y10T137/86606
摘要： A pump having a center section (36) including an air valve (76) is arranged with air chambers to either side of an actuator housing. Diaphragms are associated with the air chambers to create enclosed cavities. Pumping chambers are positioned outwardly of the diaphragms and formed by intake and exhaust manifolds (20, 22). The actuator uses a pilot shifting shaft (62) which is shuttled by movement of the diaphragms. An air valve is controlled by the shuttle shifting shaft to control flow to and from the air chambers. The passageways from the air chambers to exhaust find the passage to the outlet being at least as restrictive to air flow as the remainder of the passageways. A diffuser includes a thin space between two surfaces, one of the surfaces being part of a porous block (96) of material.
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公开(公告)号：EP0890016A1
公开(公告)日：1999-01-13
申请号：EP97908979.0
申请日：1997-03-10
CPC分类号： F04B43/0054
摘要： A flexible diaphragm (20) for an air driven diaphragm pump having a circular configuration with an inner attachment portion (22), an outer attachment portion (48) and an annular flexure portion (40) bounded by transition portions to the inner and outer attachment portions. The annular flexure portion is configured with a constant radius of curvature concave on the air chamber side. The curvature is such that the center of curvature lies substantially within a plane also including the transition portion (38) between the annular flexure portion and the inner attachment portion. The diaphragm is molded in this shape to avoid the creation of internal stress and permanent strain resulting from use of the diaphragm. Fabric (50) is positioned across the diaphragm closest to the air chamber side and being about one-third of the total thickness of the diaphragm from the air chamber side of the diaphragm.
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公开(公告)号：EP1097304B9
公开(公告)日：2004-03-03
申请号：EP99933760.3
申请日：1999-07-07
CPC分类号： F04B7/0241 , F04B43/0736 , Y10T137/2544
摘要： An air driven double diaphragm pump has two opposed pumping cavities (16, 18) with diaphragms (20, 22) extending across the cavities. An actuator housing (10) includes a control valve assembly (52) having a control valve (76) to direct pressurized air to one or the other of the dual pumping cavities (16, 18) and two relief valves (116) which cooperate with the pump shaft position to release air from one end or the other of the control valve (76) for the shifting thereof. Shuttle valve elements (160) are positioned between the control valve (76) and the pumping chambers (16, 18). The shuttle valve elements are slidably positioned within the valve (162) to move between extreme positions under the pressures within the input and the pumping cavity. In one extreme position, the pumping cavity is in communication with an exhaust (168) having a tapered passage. In the other, the exhaust is cut off and pressurized air is able to pass through a one-way valve (178, 182) in a passageway (174) through the shuttle valve (160) element to charge the pumping chamber.
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9.发明公开
公开(公告)号：EP0898652A1
公开(公告)日：1999-03-03
申请号：EP97924562.0
申请日：1997-05-01
CPC分类号： F04B43/0736 , Y10S137/903
摘要： An air driven diaphragm pump having two opposed pumping cavities (26). A center section assembly (104) between the pumping cavities includes a cylinder (108) and a power amplifier piston (124). The power amplifier piston as well as the diaphragms (88) are coupled with a common control shaft (116). A valve assembly (138, 144) is arranged with a manifold (162) to receive pressurized air and distribute that air in alternating fashion to the sides of the power amplifier piston as well as to each of the diaphragms. By directing pressure to a side of the power amplifier piston facing the same direction as the diaphragm receiving pressure, an amplified pressure on a pump chamber is experienced. With the power amplifier piston being approximately twice as large as the diaphragm assembly an amplification of three times the pressure on the pump chamber is experienced. Both pump chambers are able to operate to pump material.
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公开(公告)号：EP0859912A1
公开(公告)日：1998-08-26
申请号：EP96936952.0
申请日：1996-10-25
发明人： DUNCAN, Gregory, S.
CPC分类号： F01L25/063 , F04B43/0736 , Y10S91/02 , Y10T137/86606
摘要： A pump having a center section (36) including an air valve (76) is arranged with air chambers to either side of an actuator housing. Diaphragms are associated with the air chambers to create enclosed cavities. Pumping chambers are positioned outwardly of the diaphragms and formed by intake and exhaust manifolds (20, 22). The actuator uses a pilot shifting shaft (62) which is shuttled by movement of the diaphragms. An air valve is controlled by the shuttle shifting shaft to control flow to and from the air chambers. The passageways from the air chambers to exhaust find the passage to the outlet being at least as restrictive to air flow as the remainder of the passageways. A diffuser includes a thin space between two surfaces, one of the surfaces being part of a porous block (96) of material.
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