Ebm-papst Mulfingen Gmbh & Co Kg

Emb-papst Mulfingen Gmbh & Co Kg

Thorsten Pissarczyk

Oliver Haaf

Daniel Gebert

Erhard Gruber

Katrin Bohl

Sven Beck

Marc Schneider

Christian Weiss

Michael Strehle

Christian Haag

Sebastian Hoss

Jürgen Schöne

Markus Engert

Jens Müller

Christian Hammel

Björn Sudler

Angelika Klostermann

Eric Reichert

Fan wheel of an axial fan

An axial fan for use with a wall ring plate includes a housing having an inlet region and a rotor. The rotor has an increased rotor diameter compared to a standardised rotor diameter. On the inlet side, the inlet region has a tapered section that narrows in an arched manner in a cross-sectional view from an inlet diameter to a wall ring diameter. The axial width and radial length of the tapered section are formed in a predetermined ratio.

Axial fan with increased rotor diameter

An axial ventilator has multiple fan wheel blades () arranged around an axis of rotation (RA) in a blade ring. At least one of the fan wheel blades () has an inner section () located on the radial inside. A blade edge section () directly adjoins the inner section () and borders a blade edge (). The at least one fan wheel blade () has a local projection () over a radial extension of the blade edge section (). The local projection () is formed as an extension of the chord length of the fan wheel blade. The projection locally enlarges the fan wheel blade () in the blade edge section (). An average angle of attack (&#x3b1;) of the fan wheel blade (), in relation to a plane of rotation (RE), of the fan wheel (), is larger than an average angle of attack (&#x3b2;) of the projection (), in relation to the plane of rotation (RE).

Fan wheel of an axial ventilator

The invention relates to a flow rectifier for an axial fan as well as to an axial fan having a flow rectifier. A flow rectifier according to the invention for an axial fan with a hub and at least one vane is characterized in that the at least one vane can be operatively connected to the hub so as to be detachable. Since the vane and the hub can be connected so as to be detachable, the flow rectifier has a modular structure.

Flow straightener

The invention relates in particular to a ventilator wheel of an axial ventilator, which includes multiple blades, each having radially outward extending blade forward edges and radial outer edges on the outlet side, wherein a transition from the radial outer edges to the blade forward edges is formed, in each case with a projection extending in the circumferential direction relative to the adjacent, radially outward extending blade forward edges, wherein a seamless transition is formed from the radial outer edge portion () to a region of the respective blade situated radially further inward.

Blade of a ventilator wheel, ventilator wheel and axial ventilator

The invention relates to a blade for a fan impeller. In particular, the invention relates to the geometric configuration of the blade in its end area facing a hub. Furthermore, the invention relates to a fan impeller. A blade according to the invention for a fan impeller has an end area facing a hub, whereby the blade has at least one rib in the end area facing the hub, whereby the rib has an outer contour that simulates a flow profile.

Blade

A ventilation device, in particular for heating, cooling and/or humidifying air in residential buildings, includes a duct-shaped housing () with an air inlet opening () and an air outlet opening (), and a fan impeller () as well as a filter unit, heat exchange unit and/or heating coil unit () arranged in the main flow direction (Z) of an air flow generated by the fan impeller (). An air guiding device () is arranged in the flow direction (Z) of the air flow in front of a suction nozzle ()&#x2014;configured as a flow conditioner, includes a bar structure with air guiding bars-such that a flow inlet opening is configured on the suction side at an axial height in front of the flow inlet opening () by the bar structure whose opening surface is smaller than the opening surface of the flow inlet opening ().

Ventilation device, in particular for heating, cooling, and/or humidifying air in residential buildings

Ventilator fan for a ventilation system

Ventilation grid

Growing community of inventors

Gemmingen, Germany

Thorsten Pissarczyk