Motor pump
US11015607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2019 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Aug 19, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A motor pump includes a shaft rotatable around an axis, a driving section including a rotor core integrally fixed to an outer circumference of the shaft and a stator surrounding an outer circumference of the rotor core, a compression section configured to compress a working fluid, a casing surrounding the shaft, the driving section, and the compression section, a partition radially partitioning an inside of the casing into a first space in which the stator is disposed and a second space in which the rotor core is disposed, a first connection path connecting the first space to a first portion of the compression section, and a second connection path connecting the second space to a second portion of the compression section in which a pressure of the working fluid is higher than that of the first portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.