Patent · US Active

Fan blade

US8167564B2 · kind B2 · utility

11Cited by

5References

15Claims

0Family size

Assignee

ebm-papst Mulfingen GmbH & Co. KG · DE

Inventors

Gunter Streng · Schrozberg, DE
Rainer Muller · Penzberg, DE
Rolf Bickel · Igersheim, DE

Key dates

Filing date	Aug 1, 2007
Grant date	May 1, 2012
Priority date	—
Expiry date	Mar 9, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/388
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a fan blade for axial fans with a blade body comprising an inner inlaid part and an outer blade shaped part partially enclosing said inner inlaid part. The outer blade is made of a material of lower rigidity than the inlaid part. The inlaid part is constructed as a substantially flat metal part adapted to the shape of the blade body and in the fan blade base region has an unencapsulated smooth fixing section.

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