Ebm-Papst Mulfingen Gmbh & Co Kg

Sven Walter

Oliver Haaf

Christian Haag

Bjoern Sudler

An axial fan, having an inner electric motor and a fan wheel connected to the electric motor so as to rotate with it and has a plurality of wheel blades defining a blade length and extend outwardly from the electric motor. A fan housing surrounds the fan wheel. The fan housing is connected to the motor via holding struts which extend to the outside from the motor to the fan housing. A motor housing is provided on the motor behind the fan wheel and accommodates a motor electronics system. A flow duct having an inflow opening and an outflow opening is fastened to the motor behind the fan wheel such that the inflow opening is arranged offset to the outside with respect to the outflow opening. The outflow opening is oriented in such a way that an air flow which exits the outlet opening is guided onto the motor housing.

Axial fan with additional flow channel

A motor, comprising an electronics housing, a stator having a stator bushing, and a rotor. The motor can be fastened to a fastening wall by means of the stator bushing. The motor according to the invention has an air conducting element and an air conveying element. The air conveying element is connected to the rotor in a rotationally fixed manner. The air conducting element surrounds the stator bushing and forms a flow space between the air conducting element and an outer circumference of the stator bushing. The flow space is open on the side of the electronics housing in the direction of the fastening wall through at least one flow gap. The air conducting element opens with an intake opening via a sealing gap in a rotor-side throughflow opening of the air conducting element.

Growing community of inventors

Munich, Georgia

Sven Walter