Cover disk for a closed impeller
US8469669B2 · kind B2 · utility
1Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2009 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jul 12, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/284
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cover disk (1) for a closed rotor of a radial flow machine or diagonal flow machine for defining a flow channel has a wall thickness which has a local maximum along the profile mean line of the meridional cross section of the cover disk between a first front side (2) and a second front side (3) of the cover disk. An outer surface (1.2) of the cover disk remote of the flow channel has in the area of this local maximum a convex curvature with a radius (R2.2) whose ratio (R2.2/D2) to an outer diameter (D2) of the rotor is within a range of 0.05 to 0.5 (0.05≦R2.2/D2≦0.5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.