Pump for conveying a highly viscous fluid
US10550850B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2016 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Jan 25, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/4293
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump for conveying a highly viscous fluid includes a casing with at least a first inlet and an outlet for the fluid, and an impeller for conveying the fluid from the inlet to the outlet. The impeller is arranged on a rotatable shaft for rotation around an axial direction, and includes a front shroud facing the first inlet of the pump. The casing includes a stationary impeller opening for receiving the front shroud of the impeller and has a diameter. The front shroud and the stationary impeller opening form a gap having a width in a radial direction perpendicular to the axial direction, and the ratio of the width of the gap and the diameter of the impeller opening is at least 0.0045.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.