| 摘要 |
<p>The invented liquids pump has in its crankcase /1/ beneath a cover /15/ two identical, side-by-side arranged crank recesses /2', 2''/. In each recess there is mounted on a central pin /9/ a crank disk /3/ being provided with a connecting rod journal /12/. The connecting rod journals /12/ are coupled by means of a connecting rod, consisting of a shank /8/ and connecting rod eyes /11/. In a groove /6/, performed between the crank recesses /2', 2''/, there is mounted a sliding sealing element /7/ being optionally provided with a rotary sealing roller /13/ having an opening in its shank /14/. The connecting rod shank /8/ passes over said sealing element /7/ from the first crank recess /2'/ into the second crank recess /2''/. Medium inlet passages /4/ and outlet passages /5/ have their orifices between the crank recesses /2', 2''/. The sealing element /7/ separates a space of the first crank recess /2'/ from the second crank recess /2''/ and said connecting rod shank /8/ separates a space of the inlet passages /4/ from the outlet passages /5/. The device is put into operation by rotation of the crank disks /3/ in opposite direction to each other, to thereby inducing pumping action and expelling, optionally compression of the handled medium.</p> |
