| 摘要 |
<p>PCT No. PCT/IT92/00154 Sec. 371 Date Feb. 21, 1995 Sec. 102(e) Date Feb. 21, 1995 PCT Filed Dec. 3, 1992 PCT Pub. No. WO93/11360 PCT Pub. Date Jun. 10, 1993A centrifugal pump is of the type having a diffuser (1) with upstream and downstream ends (1a, 1b), a delivery body (3) fixed to the downstream end and including a delivery chamber, a suction body (2) fixed to an upstream ends (1a) of said diffuser (1) and including a suction chamber. A jacket (8) is fixed between the suction body and said delivery body, defining a space within. The pump includes a multi-functional chamber communicating with said jacket, a first auxiliary outlet communicating between said multi-functional chamber communicating and said suction chamber, a second auxiliary outlet communicating between said multi-functional chamber communicating and the external space, and outlet plugs for opening and closing the two outlets independently of one another. The pump is suitable for different pumping functions.</p> |
