To provide a pump impeller optimally designing a discharge capacity without being influenced by the maximum passing particle diameter and promoting passage of solid material having the maximum passing particle diameter.
This impeller 52 rotates around a rotating axis M in the vortex chamber 53a of a casing 53 and includes a single blade 60 having shrouds 61 at both sides in the direction of the rotating axis M. In the impeller 52, an outer flow passage 68 formed in an outer surface between the shrouds 61 of the impeller 52 keeps the same maximum passing particle diameter as that of an inner flow passage 67 in a portion having the maximum flow passage width leading to the impeller outlet 66 of the inner flow passage 67 inside of the impeller 52 and is smaller than the maximum passing particle diameter by gradually reducing flow passage depth, and an interval between the shrouds is enlarged toward radially outward of the impeller 52 in at least a portion corresponding to the maximum flow passage width of the outer flow passage 68.
| JP4649110 | Granule pump feeder |
| WO/2023/067484 | A CHOPPER PUMP |
| JPH01159494 | PUMP AND A METHOD OF SEPARATING GAS BY SUCH FROM A FLUID TO BE PUMPED |
| JP2009221976A | 2009-10-01 | |||
| JP2005036778A | 2005-02-10 | |||
| JP2005036778A | 2005-02-10 | |||
| JP2009221976A | 2009-10-01 |
Yoshihiro Morimoto
Toshiji Sasahara