Die Erfindung betrifft eine Drehfeldmaschine mit einer in einem Stator (1) und einer am Stator drehbar gelagerten Welle (3) auf der ein Ausenrotor (10) angeordnet ist. Es ist vorgesehen dass der Ausenrotor zumindest teilweise aus einem Kunststoff besteht.

Drehfeldmaschine mit Außenläufer

Die Erfindung betrifft einen Rotor (10) fur eine elektrische Maschine, mit einer Rotorwelle (14), und mit einem auf der Rotorwelle (14) angeordneten Blechpaket (16), welches drehfest mit der Rotorwelle (14) verbunden ist, wobei in radialer Richtung der Rotorwelle (14) zwischen dieser und dem Blechpaket (16) wenigstens ein Wuchtelement (22), welches als Wuchtstift (22), dessen Langserstreckungsrichtung parallel zur axialen Richtung der Rotorwelle (14) verlauft, ausgebildet und zum Wuchten des Rotors (10) angeordnet ist.

Rotor für eine elektrische Maschine, insbesondere eines Kraftfahrzeugs

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

Ein Ventilator (Radial- oder Axialventilator) mit einem Laufrad und einer Vorleiteinrichtung im Stromungspfad vor dem Laufrad, vorzugsweise vor dem Einlaufbereich einer Einlaufduse, hat die Vorleiteinrichtung als Vorleitgitter mit Stegen und/oder Leitflugeln, die derart angeordnet und geformt sind, dass bei einer im wesentlichen drallfreien Zustromung eine Stromungsbeeinflussung in Umfangsrichtung erfolgt.

Ventilator und Vorleitgitter für einen Ventilator

The invention relates to a rotor (10) for a fan, which rotor has a carrier element (11) and a plurality of blades (14), the blades (14) being arranged on the carrier element (11) and the rotor (10) being rotatable about an axis of rotation (15) The carrier element (11) has at least one balancing space (18) for receiving at least one weighting element (20), the balancing space (18) running in the circumferential direction (17) and the balancing space (18) having at most one interruption (24) in the circumferential direction (17), such that the balancing space (18) permits at least substantially free movement of the at least one weighting element (20) in the circumferential direction (17) and, at least in the event of a first rotation of the rotor (10) about the axis of rotation (15), the at least one weighting element (20) is arranged in such a way that an imbalance of the rotor (10) is automatically reduced

Rotor for a fan

The invention relates to a flow rectifier for a flow inlet opening (7) of a fan assembly, comprising a grate structure (11) consisting of grate webs that cross each other, which grate webs bound a large number of grate openings (17) for sucking air in, wherein a preferably circular outlet opening bounded by an outlet-opening edge is provided for the outflow of air from the flow rectifier (8). According to the invention, the grate openings (17) bounded by the grate structure (11) are arranged around a closed central section (10) in a circumferential direction and radially outside of said central section, which central section is axially spaced apart from the outlet opening (15).

Flow rectifier and fan assembly having a flow rectifier

Die Erfindung betrifft einen Stromungsgleichrichter fur eine Stromungseintrittsoffnung (7) einer Lufteranordnung, umfassend eine Gitterstruktur (11) aus sich kreuzenden Gitterstegen, die eine Vielzahl Gitteroffnungen (17) zum Ansaugen von Luft begrenzen, wobei fur den Luftaustritt aus dem Stromungsgleichrichter (8) eine von einem Austrittsoffnungsrand begrenzte, bevorzugt kreisformige, Austrittsoffnung vorgesehen ist. Erfindungsgemas ist vorgesehen, dass die von der Gitterstruktur (11) begrenzten Gitteroffnungen (17) in Umfangsrichtung um sowie radial auserhalb eines geschlossenen Zentralabschnitts (10) angeordnet sind, der axial von der Austrittsoffnung (15) beabstandet ist.

Strömungsgleichrichter sowie lüfteranordnung mit strömungsgleichrichter

The invention relates to a device for ventilating a vehicle seat, said device comprising: a cushion (12) which is elastic with respect to a user contact and which is designed to form a seating surface and/or a contact surface (24) for the back, said cushion having an air flow channel (16, 17) which forms an air outlet (15) in the direction of the seating surface and/or contact surface for the back; a cover unit (18) designed to at least partially cover the air outlet, the unit being air-permeable, rigid and preferably having a lattice-type construction; and a fan unit (14) which is associated with the air flow channel and which has an electric motor-driven fan rotor (30) and a fan housing (32), some sections of which housing radially surround the fan rotor. The cover unit and the fan unit are mutually spaced (d) along the air flow channel and preferably are secured to or in the cushion without a direct connection to sections of said cover unit and fan unit. Preferably, a mechanical connection between the cover unit and the fan unit is achieved only by a flexible, rubber-elastic material, especially preferably a foam-type material of the cushion (12).

Device for ventilating a vehicle seat and vehicle seat

The rotational body (100) is rotatable around an assigned rotational axis (150) and has an annular path that is concentrically arranged to the rotational axis. Two measuring bodies are arranged in the assigned balancing positions in the path. A light-setting viscous fixing material is sectionally provided in the path and fixes the measuring bodies in the assigned balancing positions. The curable viscous fixing material is an adhesive and particularly a light-setting cyanoacrylate- or acrylate adhesive. An independent claim is also included for a method for balancing a rotational body.

Rotational body, particularly rotor of electric motor, is rotatable around assigned rotational axis and has annular path that is concentrically arranged to rotational axis

The motor (100) has an inner stator (110) with a laminated core (120) that includes a central inner recess (125). Bearing arrangements (130, 135) are arranged in the recess. An external rotor (150) is provided with a permanent magnet arrangement (140) that is fastened with a rotor shaft (160). The rotor is arranged at an outer side (129) of the core such that a magnetically active air gap (170) is formed between the rotor and the outer side of the core. A base part (180) is connected with supporting legs (121, 122) of the core, where the supporting legs support the stator at the base part. The motor has an injection molded structure that is made of plastic and provided at the core.

Electronically commutated external rotor motor, has external rotor arranged at outer side of laminated core, and base part connected with supporting legs of core, where supporting legs support inner stator at base part

Andreas Kienzler

Papers

Flow rectifier and fan assembly having a flow rectifier

Strömungsgleichrichter sowie lüfteranordnung mit strömungsgleichrichter

Device for ventilating a vehicle seat and vehicle seat

Rotational body, particularly rotor of electric motor, is rotatable around assigned rotational axis and has annular path that is concentrically arranged to rotational axis

Electronically commutated external rotor motor, has external rotor arranged at outer side of laminated core, and base part connected with supporting legs of core, where supporting legs support inner stator at base part