公开(公告)号：US5224841A

公开(公告)日：1993-07-06

申请号：US874333

申请日：1992-04-24

申请人： Raymon E. Thompson ,  Karl Martin ,  Aleksander Owczarz

发明人： Raymon E. Thompson ,  Karl Martin ,  Aleksander Owczarz

IPC分类号： F04B9/117 ,  F04B43/113 ,  F04B53/10

CPC分类号： F04B9/1174 ,  F04B43/1136 ,  F04B53/1022

摘要： A low contamination double bellows pump suitable for providing relatively constant pressure and delivery. The illustrated pump includes two pumping chambers with bellows arranged in opposed relationship on opposite sides of a central section. The central section acts as a valve body for inlet and outlet valves. The bellows are provided with interior bellows tubes which connect to the free ends of the bellows and slide upon stationary support pistons mounted within each tube. Bellows tube head pieces slide upon piston rods which support the pistons. Pneumatic pressure is controllably supplied to opposing sides of the pistons within the bellows tubes to power the bellows and effect pumping.

摘要翻译： 低污染双波纹管泵适用于提供相对恒定的压力和输送。 示出的泵包括两个泵送室，其中波纹管以相对的关系布置在中心部分的相对侧上。 中心部分用作入口和出口阀的阀体。 波纹管设有内部波纹管，其连接到波纹管的自由端并在安装在每个管内的固定支撑活塞上滑动。 波纹管管头部件在支撑活塞的活塞杆上滑动。 气动压力可控地供应到波纹管内的活塞的相对侧面，以对波纹管供电并实现泵送。