Method of connecting an impeller to a shaft, connection arrangement and rotary machine
US10221691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2014 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | May 29, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A connection arrangement comprising a shaft having an axial through hole, a tie rod located inside the axial through hole, an impeller comprising a solid hub, a plurality of blades, and an integral stub protruding axially from the solid hub; at an end of the tie rod there is an integral body having a shape radially protruding from the tie rod; the stub has a cavity for receiving the body and an axial hole for inserting the body into the cavity; the stub axial hole has a shape corresponding to the shape of the body; the cavity is so sized and shaped as to allow rotation of the body inside the cavity and trapping of the body in the cavity once rotated; the shaft and the impeller are coupled together by a coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.