| 摘要 |
1,219,141. Centrifugal pumps. RENNERODER KUNSTSTOFFWERK G. m. b. H. Jan. 10, 1968 [July 12, 1967], No. 1527/68. Heading F1C. [Also in Division F2] In a centrifugal pump, an exchangeable assembly comprising the impeller, closure plate 11, Fig. 1, housing 5, pump shaft 20 and associated seals, can be removed as a single unit after adjustment of or, as in the case of the pump shown, complete removal of the shaft coupling 1. The parts of the pump which are contacted by the pumped liquid are of plastics material. The closure plate 11 is lined with a plastics member (7), Fig. 3 (not shown). |
