Patent · US Active

Radial or diagonal fan wheel

US8932019B2 · kind B2 · utility

2Cited by

4References

13Claims

0Family size

Assignee

emb-papst Mulfingen GmbH & Co. KG · DE

Inventors

Katrin Bohl · Künzelsau, DE
Marc Schneider · Bad Ems, DE
Jürgen Schöne · Bad Mergentheim, DE

Key dates

Filing date	Feb 24, 2011
Grant date	Jan 13, 2015
Priority date	—
Expiry date	Apr 8, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S416/50
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fan wheel (1) is designed as a radial or diagonal fan, comprising a top plate (2) with an inlet port (4), a base plate (6) and a plurality of fan blades (8) distributed around the inlet port (4) and around an axis of rotation (Z). Blade ducts extend (10) respectively between the adjacent fan blades (8). The blade ducts lead radially or diagonally outward from the area of the inlet port (4) and form blow-out ports in the outer region. The blade ducts (10) are designed, with respect to their effective flow cross-section, as large enough that during operation, a turbulent flow with a Reynolds number markedly greater than 2300 is achieved. The top plate (2) or the base plate (6) or both feature a rotationally asymmetrical geometry with a continuous profile, at least in angular sections encompassing the fan blades (8).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.