Axial thrust compensation for centrifugal pump
US4615662A · kind A · utility
10Cited by
4References
2Claims
0Family size
Inventor
Key dates
| Filing date | Nov 21, 1985 |
| Grant date | Oct 7, 1986 |
| Priority date | — |
| Expiry date | Nov 21, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D13/027
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump motor unit of the type having an impeller connected to the armature, which unit is located in a pump housing whereby the armature is separated from the stator or a driving annular magnet by a magnetic gap in which a magnetically permeable dividing wall is situated, separating the wet side of the pump from the dry side, the dry side containing the electric stator or motor, said impeller armature unit includes radially extending channels whose suction sides communicate with the magnetic gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.