Gas circulator
US4725198A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1986 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Jun 24, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/056
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas circulator, e.g. for circulating a coolant gas in a nuclear power station, the circulator comprising a shaft (34) rotatable about its axis, circulation blades (54, 56) mounted adjacent one end of the shaft for rotation in the coolant gas, a first bearing, (32), in the form of an active magnetic bearing adjacent one end of the shaft, a seal mounted around the shaft between the first bearing and the blades to prevent the circulating fluid from entering the first bearing, a second bearing (32) in the form of a fluid lubricated bearing spaced from one end of the shaft and a motor to rotate the shaft, the second bearing having a journal bearing portion and an axial thrust bearing portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.