Patent · US Active

Fan impeller

US9810234B2 · kind B2 · utility

5Cited by

1References

22Claims

0Family size

Assignee

Punker GmbH · DE

Inventors

Henning Bähren · Wulfen, DE
Christian HORNHARDT · Altenholz, DE
Matthias Wolf · Coatesville, US
Yingan Xia · Eckernförde, DE

Key dates

Filing date	Sep 10, 2014
Grant date	Nov 7, 2017
Priority date	—
Expiry date	Jan 28, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fan impeller for the conveyance of a gaseous fluid includes several blades arranged with constant angular spacing around a rotation axis. At least one blade has a boundary zone and an inner zone, together with a bead extending between them along a curved path and/or the boundary zone is determined by a first blade surface and the inner zone is determined by a second blade surface, which are arranged with varying geometry.

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