Motor-driven pump with a plurality of impellers
US6514053B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Feb 6, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/2277
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A motor-driven pump with a plurality of impellers, includes a pump housing provided on an electric motor, and an impeller unit provided in an inner space of the housing, the housing having two fluid inlet port regions on two sides near and away from the motor in a longitudinal direction of an output shaft of the motor, and having one fluid discharge port region between the inlet port regions, and the unit including a pair of impellers having a partition wall fixed to the output shaft, directing to the discharge port region, and partitioning the inner space into two portions near and away from the motor, and a pair of blade groups provided on both sides of the partition wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.