Patent · US Active

Fan arrangement in which the consumed electric power is influenced

US8482235B2 · kind B2 · utility

1Cited by

5References

11Claims

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	Jul 9, 2013
Priority date	—
Expiry date	Oct 7, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH02P29/032
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A fan arrangement (20) has a fan (24) driven by an electric motor (22). It further has an apparatus for continuously detecting an actual electrical value associated with the electric motor (22) during operation, an input apparatus for inputting a desired electrical value for the operation of said electric motor,a comparison apparatus (26) for comparing said electrical value with the actual electrical value, and a controller which regulates said electrical value by pulse width modulation (36).

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