| 摘要 |
<p>Pump draws liquid through the filter which consists of self-cleaning filter elements arranged around the pump and connected to the suction side. The filters are cleaned by vibrators working at >50-60 Hz, and they feed into the top of the casing that surrounds the pump, the opposite end to that at which the pump draws in liquid. Increased output is obtd. with no increase in size.</p> |
