Free-jet centrifuge for cleaning lubricant oil with reduced run-on times
US6620090B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2002 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Jan 15, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B5/005
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A free-jet centrifuge which, in contrast to prior art centrifuges which are braked by bearing friction, includes a device for braking the rotor when the oil pressure falls below a predetermined value. The rotor is mounted in a slide bearing (12), which simultaneously forms the centrifuge oil inlet (23), and also is provided with a roller bearing (19), which minimize bearing friction and enables the rotor to attain the highest possible rotational speeds. Friction partners (15a, 15b) are disposed on the centrifuge housing (10) and rotor (11) and are pressed against one another by a spring (20) when the oil pressure drops below operating pressure, to stop the rotor in order to minimize run-on of the centrifuge and the noise and bearing wear associated with run-on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.