Ebm-papst Mulfingen Gmbh & Co Kg

Emb-papst Mulfingen Gmbh & Co Kg

Michael Strehle

Erhard Gruber

Daniel Gebert

Jens Müller

Björn Sudler

Oliver Haaf

Christian Haag

Daniel Conrad

Christian Hammel

Manuel Vogel

Alexander Konzal

Jens Mueller

Katrin Bohl

Thorsten Pissarczyk

Marc Schneider

Jürgen Schöne

Martin Baer

Martin Kleinschrodt

Eric Reichert

Michael Sturm

Reichert Eric

Schneider Marc

A flow guiding device for use on a fan assembly with a motor-operated radial impeller rotating about an axis of rotation. The guiding device has an outer housing and an inner diffuser. A flow duct is formed between the outer housing and inner diffuser. The flow duct extends along an axial flow direction. The outer housing forms a receiving space for the integral holding of the radial impeller. The impeller borders, in the axial direction, on the inner diffuser. The impeller, during operation, takes in a flow axially and blows it out radially into the flow duct. The flow duct is adapted to deflect the flow from a radial direction into an axial direction.

Flow guiding device and fan assembly with flow guiding device

A centrifugal or diagonal impeller has impeller blades () that are curved in the circumferential direction about an axis of rotation and are formed from a single-layer sheet metal. Each blade () has a suction side () and a pressure side () as well as a blade leading edge () and a blade trailing edge (). At least the blade leading edge () of the impeller blades () adjacent to their suction side () have a geometric edge modification in the form of a rounding () over a predetermined partial length of a blade thickness (SD) of the impeller blades ().

Centrifugal or diagonal impeller with modified blade edge

Fan part

Vane damper with trailing edge

A protective grille for a fan has a web structure which comprises radial webs spaced apart in a circumferential direction and coaxial circumferential webs spaced apart in a radial direction. The protective grille has at least a radial outer region and a central region around a central axis of the protective grille. An envelope surface spanned by the radial outer region and the central region is of convexly curved form in the radial outer region and is of flat form, parallel to a radial plane of the protective grille, in the central region.

Protective grille with improved efficiency and noise characteristics

The invention relates to a ventilator wheel which is produced in the form of a radial or a diagonal ventilator wheel, and comprises a bottom disc and a plurality of ventilator blades arranged, on said bottom disc, so as to be distributed about an axial rotational axis, said bottom disc comprising a circumferential radial outer edge section that, when viewed in cross-section, extends in a curved shape in at least some sections and thus forms an elliptical transition of said bottom disc from a radial extension into an axial extension.

Ventilator wheel and ventilator

Fan wheel

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

Fanwheel

Fan grid

A radial fan wheel arrangement includes a circular bottom plate () and a circular cover plate () with a central inflow opening (), as well as wheel blades () running between the bottom plate () and the cover plate (). Pocket-shaped recesses () are configured at least on one side of a plate surface in the space between the wheel blades () in an outer edge area of the cover plate () or the bottom plate () or both. At least one counterweight () is mounted on at least one of the two plates () on a plate edge in an area of the pocket-shaped recesses ().

Radial fan wheel arrangement

Growing community of inventors

Ingelfingen, Germany

Michael Strehle