Impeller for water pump
US6712583B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 17, 2002 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Apr 17, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/43
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An impeller for a water pump includes an impeller main body composed of a synthetic resin and having a vane member formed around a rotating center portion; and a metal boss in which a circular boss member positioned on the forward side of the rotating center portion and provided with a gradually narrowing portion at the axial end thereof, and a periaxial support boss member positioned on the rearward side of the rotating center portion are consecutively formed in the axial direction, and in which an axial support surface is formed between the circular boss member and periaxial support boss member, the metal boss being insert-fitted into said rotating center portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.