Compact turbomachine with magnetic bearings and auxiliary bearings
US10208759B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2014 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Jun 3, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C32/0442
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbo-machine for compressing or expanding a fluid comprises a housing, a rotary shaft, an electric machine, an impeller mounted at an end of the rotary shaft, radial magnetic bearings, an axial magnetic bearing, an axial detector, radial detectors, a control circuit, and auxiliary bearings. An auxiliary bearing is integrated within a stator portion of the axial magnetic bearing and this stator portion of the axial magnetic bearing is located opposite a rotor armature of the axial magnetic bearing. The rotor armature is made of iron or of a material which is adapted to be attracted in a magnetic field and is constituted by a rear face of the impeller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.