Patent · US Active

Axial or diagonal fan with trip edge on the rotor blade

US9803649B2 · kind B2 · utility

18Cited by

22References

8Claims

0Family size

Assignee

ebm-papst St. Georgen GmbH & Co. KG · DE

Inventors

Peter Ragg · Kununurra, AU
Michael Stadler · Munich, DE

Key dates

Filing date	Dec 20, 2012
Grant date	Oct 31, 2017
Priority date	—
Expiry date	Jan 30, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/72
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An axial- or diagonal-fan has a fan wheel (34) having profiled rotor blades (32). Each blade has a suction or intake side (46), a portion located forward, with respect to the rotation direction (36), and having a leading edge (44), and a portion located rearward, with respect to the rotation direction (36), and having a trailing edge (92). Between said portions, on the intake side (46) of the respective rotor blade (32), a trip or separation edge (66) is provided, said trip edge having an S-shaped contour in a meridian cross-section.

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