Intake channel arrangement for a volute casing of a centrifugal pump, a flange member, a volute casing for a centrifugal pump and a centrifugal pump
US10082154B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2015 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | Nov 6, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D1/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An intake channel arrangement includes an intake channel. The intake channel includes a first end with a first inner diameter, and a second end with a second inner diameter, the second inner diameter being smaller than the first inner diameter, a cross-sectional flow area and an adapter section arranged between the first and second ends, a first channel portion with a surface and the first inner diameter, an annular convex curvature surface joining at an angle to the surface of the first channel portion, the angle being 90°-110° between the surface of the first channel portion and a tangent of the convex curvature surface having a tangent point in an intersection of the surface of the first channel portion and the convex curvature surface, the annular convex curvature surface reducing the cross-sectional flow area from the first inner diameter to the second inner diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.