Ebm-papst St. Georgen Gmbh & Co Kg

Jürgen Herr

Wolfgang Laufer

Roland Keber

Tobias Sieger

Georg Eimer

Johannes Dannecker

Julien Grilliat

Dominik Haas

Norbert Weisser

Markus Flaig

Arnold Schulde

Clemens Günter

Simon Hoppe

Martin Müller

Stefan Mayer

Marcel Paffendorf

Christoph Mayer

Bozidar Radjenovic

Niclas Griesshaber

Johannes Fehrenbach

Ventilating fan

An axial ventilator () has a housing () and a fan wheel () arranged in the housing () to generate an axial air flow through the housing (). The fan wheel () has multiple fan wheel blades () that extend radially outward from a hub () up to a respective blade tip (). The blades extend spaced apart from an inner wall of the housing () via a head gap (). The fan wheel blades () have boreholes () along the respective blade tip ().

Axial ventilator having noise reducing fan wheel blades

A fan () has a fan housing (). The latter has an air entrance opening () and an air exit opening (). It further has a swivel joint arrangement () having at least one swivel joint () that is arranged on a joint carrier (); at least one non-return flap () that is journaled rotatably by means of the at least one swivel joint () and, in its closed position, at least partly closes off the air exit opening (); and at least one elastic return member () that is associated with the at least one non-return flap () and urges it toward its closed position.

Ventilator

Growing community of inventors

St. Georgen, Germany

Jürgen Herr