Title:
遠心羽根車および遠心羽根車の製造方法
Document Type and Number:
Japanese Patent JP7215969
Kind Code:
B2
Abstract:
To efficiently and inexpensively manufacture a centrifugal impeller having a circular main plate, a cylindrical hub protruding from the circular main plate, and a torsion portion at the hub side, and also having a plurality of blade parts protruding from the circular main plate and the hub to one side in an axial direction while having a highly-efficient three-dimensional shape.SOLUTION: A resin-made interpolation member 36 in which notched holes 42 are formed at a resin-made blade main body 35 having a circular main plate 39, a hub 40 and blade parts 41, and which has interpolation parts 44 for filling the notched holes 42, and a resin-made front face plate 37 abut on each other from both sides of the blade main body 35, fusion boss parts 51 formed at the circular main plate 39 and the blade part 41, and filling the notched parts 50 which are opened at an external periphery of the circular main plate 39 protrude to the front face plate 37 side, and integrated with the interpolation member 36, and tip parts of the fusion boss parts 51 which are mildly fit into recesses 53 formed at the front face plate 37 are fused to the recesses 53.SELECTED DRAWING: Figure 3
More Like This:
| WO/1997/007338 | RADIAL-CONSTRUCTION CENTRIFUGAL PUMP IMPELLER |
| JP3672505 | SUBMERGED STIRRING PUMP |
Inventors:
Takeshi Hirako
Ika Tokuto
Ika Tokuto
Application Number:
JP2019117638A
Publication Date:
January 31, 2023
Filing Date:
June 25, 2019
Export Citation:
Assignee:
Hitachi Astemo, Ltd.
International Classes:
F04D29/22; F04D13/06
Domestic Patent References:
| JP2018119515A |
Foreign References:
| US20170321705 | ||||
| WO2009065894A1 |
Attorney, Agent or Firm:
Ochiai Patent Office