Electromotor/pump assembly
US6200109A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1999 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Dec 17, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/14
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention discloses an electric-motor-and-pump assembly including an electric motor, and the pump-sided end of the motor shaft (3) extends through a housing lid (10), is supported with at least one roller bearing (13) on a pump housing (2), and its purpose is to drive pump pistons (17, 18). The housing lid (10) includes a bore in the area of a shaft passage (9) which leaves open a gap (11) to the motor shaft (3). The gap (11) connects a pump-sided crank chamber (14) to an inside space (19) of the motor. The assembly includes a sealing element (20) which shuts off the gap (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.