公开(公告)号：US5092743A

公开(公告)日：1992-03-03

申请号：US593792

申请日：1990-10-05

申请人： Frederic F. Dietrich

发明人： Frederic F. Dietrich

IPC分类号： F04B9/123 ,  F04B9/12 ,  F04B35/02

CPC分类号： F04B9/1222

摘要： A pump of extremely simple manufacture, requiring no maintenance, is made up of a tubular body (1) closed at each end by end pieces (10a and 10b), orifices (15a and 15b) of which are respectively connected to a pneumatic control circuit (4) and to the circuit of liquid in circulation (3). A piston (2) circulates freely within the tubular body, driven by an overpressure or an underpressure appearing in the upper chamber (17a) and controlled by the pneumatic control circuit. The displacement of the piston brings about the filling and emptying of the lower chamber (17b), thus permitting the pumping of a liquid. This type of pump, of universal use, needs only a connection to a compressor (40) and to a vacuum pump (41) for its running, and these two elements may be common to a great number of such pumps.

摘要翻译： 一种非常简单的制造的泵，不需要维护，由端部（10a和10b）在每端封闭的管状体（1）组成，孔口（15a和15b）分别连接到气动控制回路 （4）和循环液体回路（3）。 活塞（2）在管状体内自由地循环，由上部室（17a）中出现的过压或负压驱动，并由气动控制回路控制。 活塞的位移导致下腔室（17b）的填充和排空，从而允许泵送液体。 这种普遍使用的泵只需要连接到压缩机（40）和真空泵（41）以用于其运行，并且这两个元件可能对于大量这种泵是共同的。