Non-axisymmetric impeller hub flowpath
US10962021B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2018 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Jan 9, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/306
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal impeller is disclosed having a non-axisymmetric flowpath surface. The centrifugal compressor may comprise a hub and a plurality of circumferentially spaced vanes. The hub has a flowpath surface and an axis of rotation. The plurality of circumferentially spaced vanes extend from the flowpath surface, with each of the vanes having a pressure-side fillet and a suction-side fillet extending from a leading edge to a trailing edge of the vane. The pressure-side fillet and suction-side fillet intersect the flowpath surface at a runout. The runout of the pressure-side fillet of a first vane is asymmetric to the runout of the suction-side fillet of the first vane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.