High-speed pressurized impeller disk
US12060889B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2020 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | May 5, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/941
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal impeller includes a pressurized cavity that reduce the stresses in the impeller disk, blades, shroud and hub as the stiffness of the rotor is not compromised while weight is reduced across the component and peak stress regions are shifted across the part. The centrifugal impeller can be a centrifugal pump or a radial inflow turbine. The pressurized cavity is formed between a forward wall and an aft wall of the impeller and can include a plurality of orifices that open into the cavity to supply pressure from low to high pressure location around the impeller. Annular rings can be used within the cavity to stiffen the impeller. Radial and tangential stiffening ribs can be used on the two walls to stiffen the impeller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.