Compact vacuum pump
US6158986A · kind A · utility
2Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1999 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | May 12, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D25/064
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vacuum pump (11) comprises a body (1), a rotor member (9) having a plurality of rotor disks (12) coupled to corresponding plurality of stator rings integral to the body (1). The rotor, member has an axial bell-shaped cavity (13). A rotating shaft (15) and an electric motor (7, 8) are disposed within the axial bell-shaped cavity (13). The rotating shaft (15) is supported by rotation supporting means (5a, 5b). The electric motor comprises a stator (7) integral to the body (1) of the vacuum pump (11) and a rotor (8) coupled to the internal surface of the axial bell-shaped cavity (13) of the rotor member (9).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.