| 摘要 |
The pump (1) has a pump housing (2) containing a pump wheel (17), having a central opening (18a) for fitting to the end (11) of a shaft projecting into the pump housing and 2 discs (18,19) provided with axially projecting blades (21,22), with a feed line (37) used for supplying water between bearing sidewall (3) of the pump housing and the pump wheel. The latter is formed from welded sheet metal, with the axially projecting blades formed by bending pump blades (20) through slits in the discs. An Independent claim for a manufacturing method for a dredger pump is also included. |
