Patent · US Active

Fan arrangement

US8264176B2 · kind B2 · utility

2Cited by

10References

6Claims

0Family size

Assignee

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

Inventors

Markus Gutmann · Pöchlarn, AT
Arno Karwath · Rottweil, DE
Thomas Dufner · Schonach, DE

Key dates

Filing date	Nov 17, 2008
Grant date	Sep 11, 2012
Priority date	—
Expiry date	Sep 8, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B30/70
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fan arrangement (20) has a fan (24) driven by an electric motor (22), also an apparatus for detecting the electrical power (PIST) consumed by the electric motor (22) during operation; an input apparatus (28) for inputting a desired rotation speed (nSOLL) of said electric motor (22); a converter (26) for converting said desired rotation speed (nSOLL) into a desired electrical power (PSOLL); and a controller (44), which regulates the control input controlling the electric motor (22) in such a way that the difference between the electrical power (PIST) consumed in operation and the desired electrical power (PSOLL) is reduced, in order thereby to improve the air output characteristic curve (49, 58) of the fan arrangement (20) at least in a portion of the overall operating range.

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