公开(公告)号：US4494574A

公开(公告)日：1985-01-22

申请号：US564944

申请日：1983-12-23

申请人： Joseph C. Casilli ,  Lawrence Gibson ,  William D. Hessler

发明人： Joseph C. Casilli ,  Lawrence Gibson ,  William D. Hessler

IPC分类号： F04B43/06 ,  F04B43/067 ,  F04B43/073 ,  F16K1/00

CPC分类号： F04B43/0736 ,  Y10T137/86582

摘要： A diaphragm pump pumping arrangement includes two diaphragm pumps which are arranged and operate in tandem. Each of the diaphragm pumps includes a housing and a movable wall that includes a flexible diaphragm and subdivides the interior of the respective pump housing into a pumping chamber and an actuating chamber. An air distributing control arrangement interposed between and connected to the pump housings includes a spool valve movable in a bore of an aluminum casing of the control arrangement between two end positions in which it alternatingly achieves the admission of the compressed air into one, and discharge of the air from the other, actuating chamber. The spool valve is displaced due to the action of respective switching valves accommodated in individual bores of the control arrangement and displaced by the respective movable walls from their rest positions in which they admit the ambient pressure to the associated end faces to their active positions in which they admit the compressed air to the associated end faces of the spool valve. Each switching valve has an actuating portion that passes through a central passage of an annular element stationarily mounted in the respective bore, with a greater clearance at first, and with a lesser clearance later. A substantially radial passage in the annular element opens onto the zone of the central passage upstream of the lesser clearance, so that compressed air propagates into the radial passage unless prevented from doing so by a seal in a first position of the switching valve, and the lesser clearance provides a throttling action at all times, assuring pressure relief in the radial passage when the seal is in effect.

摘要翻译： 隔膜泵泵送装置包括两个隔离泵，它们排列并串联运行。 每个隔膜泵包括壳体和可移动壁，其包括柔性隔膜并将相应泵壳体的内部细分成泵送室和致动室。 设置在泵壳体之间并连接到泵壳体上的空气分配控制装置包括可在控制装置的铝壳体的孔中在两个端部位置之间移动的滑阀，其中交替地使压缩空气进入一个， 来自另一个的空气，致动室。 滑阀由于容纳在控制装置的各个孔中的各个切换阀的作用而移位，并且被相应的可移动壁从它们的静止位置移位，在这些位置中，它们将环境压力接纳到相关联的端面到其活动位置， 他们承认压缩空气到滑阀的相关端面。 每个切换阀具有致动部分，该致动部分通过固定地安装在相应的孔中的环形元件的中心通道，其间隔更大的间隙，并且随后具有较小的间隙。 环形元件中的基本上径向的通道在较小间隙的上游通向中央通道的区域，使得压缩空气传播到径向通道中，除非通过切换阀的第一位置中的密封件来防止这样做， 较小的间隙始终提供节流作用，当密封有效时，确保径向通道中的压力释放。

公开(公告)号：US4556087A

公开(公告)日：1985-12-03

申请号：US684226

申请日：1984-12-20

申请人： Joseph C. Casilli

发明人： Joseph C. Casilli

IPC分类号： F16L55/053 ,  F16L55/04

CPC分类号： F16L55/053

摘要： A pulsation damper includes a housing which bounds an internal space and two substantially coaxial openings at opposite axial ends thereof. A movable wall sealingly subdivides the internal space of the housing into a fluid-containing compartment which is supplied with the fluid whose pulsations are to be damped through one of the openings, and a gas-containing compartment which communicates with the other opening. An actuating rod is connected to the movable wall for joint movement therewith and has an extension portion which extends into the other opening and has an annular recess and forms a sealed interface with the surface bounding the other opening. Two annular channels open onto such surface at axial spacings from the recess in an equilibrium position of the movable wall. The channel that is closer to the gas-containing compartment communicates with a discharge conduit, while the other channel is permanently supplied with pressurized gaseous medium, so that when the movable wall is axially displaced out of the equilibrium position by more than a predetermined distance away from and toward the other opening, communication is established between the recess and the respective channel and the pressure in the gas-containing compartment is respectively increased and relieved through a conduit system that extends in the actuating rod between the gas-containing compartment and the recess. The channels are provided in respective inserts sealingly received in enlarged passage portions of the housing.

摘要翻译： 脉动阻尼器包括在其相对的轴向端部处限定内部空间和两个基本同轴的开口的壳体。 可移动的壁将壳体的内部空间密封地细分为流体容纳室，其被供应有脉动通过其中一个开口阻尼的流体，以及与另一个开口连通的含气室。 致动杆连接到可移动壁上，用于与其接合运动，并具有延伸部分，该延伸部分延伸到另一个开口中并且具有环形凹部，并形成与限定另一个开口的表面的密封界面。 两个环形通道在可移动壁的平衡位置处以与凹部成轴向间隔开的这种表面。 更靠近含气室的通道与排放管道连通，而另一个通道被永久地供应加压的气体介质，使得当可移动壁轴向移出平衡位置超过预定距离 从另一个开口到另一个开口，在凹槽和相应的通道之间建立了连通，并且通过在气体容纳隔室和凹部之间的致动杆中延伸的导管系统分别增加并释放了含气室的压力 。 通道设置在密封地容纳在壳体的扩大通道部分中的相应插入件中。

公开(公告)号：US4555222A

公开(公告)日：1985-11-26

申请号：US564947

申请日：1983-12-23

申请人： Joseph C. Casilli

发明人： Joseph C. Casilli

IPC分类号： F01L23/00 ,  F04B43/073 ,  F04B43/06

CPC分类号： F01L23/00 ,  F04B43/0736

摘要： A diaphragm pump pumping arrangement includes two diaphragm pumps which are arranged and operate in tandem. Each of the diaphragm pumps includes a housing and a movable wall that includes a flexible diaphragm and subdivides the interior of the respective pump housing into a pumping chamber and an actuating chamber. An air distributing control arrangement interposed between and connected to the pump housings includes a spool valve movable in a bore of an aluminum casing of the control arrangement between two end positions in which it alternatingly achieves the admission of the compressed air into one, and discharge of the air from the other, actuating chamber. The spool valve is displaced due to the action of respective limiting valves accommodated in individual bores of the control arrangement and displaced by the respective movable walls from their rest positions in which they admit the ambient pressure to the associated end faces to their active positions in which they admit the compressed air to the associated end faces of the spool valve. The spool valve carries sealing rings of a material that needs no lubrication, and is made, at least at its peripheral surface, of a material that also needs no lubrication, and the surface bounding the bore for the spool valve is hard-anodized, so that no external lubrication of the control arrangement, by lubricant entrained in the compressed air or otherwise, is needed.

摘要翻译： 隔膜泵泵送装置包括两个隔离泵，它们排列并串联运行。 每个隔膜泵包括壳体和可移动壁，其包括柔性隔膜并将相应泵壳体的内部细分成泵送室和致动室。 设置在泵壳体之间并连接到泵壳体上的空气分配控制装置包括可在控制装置的铝壳体的孔中在两个端部位置之间移动的滑阀，其中交替地使压缩空气进入一个， 来自另一个的空气，致动室。 滑阀由于容纳在控制装置的各个孔中的各个限制阀的作用而移位，并且被相应的可移动壁从它们的静止位置移位，在该位置中，它们将环境压力接纳到相关联的端面到其活动位置， 他们承认压缩空气到滑阀的相关端面。 滑阀带有不需要润滑的材料的密封环，并且至少在其外围表面上由不需要润滑的材料制成，并且用于滑阀的包围孔的表面被硬阳极氧化，因此 不需要通过润滑剂夹带在压缩空气中或其他方式来控制装置的外部润滑。