Vacuum pump
US8662841B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2007 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Jun 2, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/668
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vacuum pump comprises a housing, a drive shaft supported by a beating arrangement for rotation relative to the housing about an axis, and a pumping mechanism comprising a stator component mounted on the housing and a disk-shaped rotor component mounted on the drive shaft axially proximate the stator component. The bearing arrangement comprises a bearing supported in both radial and axial directions by a resilient support, comprising inner and outer annular portions connected by a plurality of flexible members, so that there is a fixed relation between the inner race of the bearing and the outer portion of the resilient support to determine the axial clearance between the rotor and stator components of the pumping mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.