ebm-papst

About: ebm-papst is a company organization based out in Mulfingen, Germany. It is known for research contribution in the topics: Rotor (electric) & Stator. The organization has 572 authors who have published 736 publications receiving 3763 citations.

Fan or electric motor

Abstract: The utility model relates to a fan or electric motor, include: airtight electronics casing, the internal printed circuit board who contains electron device that is equipped with of electron sheath, printed circuit board will upper portion region and lower region are divided into to the electronics casing, and said lower region with the cooling wheel of arranging is bordered on to said printed circuit board axial, wherein said printed circuit board has at least one mesopore and several periphery hole or a periphery breach, so that said upper portion regional with establish through-flow connection between the lower region to the air can by said cooling wheel passes through at least one mesopore is followed upper portion is regional to inhale said lower region is and can pass through all marginal pores of several or periphery breach return said upper portion is regional, wherein forms the air return circuit, the air return circuit contain at least one along printed circuit board is equipped with the air current of electron device's surface flow. The fan or electric motor can effectively cool off the printed circuit board in the electronics casing.

Axial ventilator wheel

Abstract: The invention relates to an axial ventilator wheel (1), comprising a wheel body (2) having a hollow cylindrical hub (4) and a plurality of ventilator blades (6) which are distributed around the circumference and connected to the hub (4). Each ventilator blade (6) extends in an axial direction in the area of a blade base (8) connected to the hub (4), and is inclined in a peripheral direction between an inflow side (10) and an outflow side (12) of the hub (4). The hub (4) is shortened with respect to the axial hub length thereof at its inflow side (10) in a peripheral direction between the blade bases (8) of the adjacent ventilator blades (6), respectively, by means of recesses (16) around the edges.

Thermodynamic cycle process system

Abstract: The present invention relates to a thermodynamic cycle process system comprising at least two heat exchangers, an EC compressor, and a combination of electronic components such as EC fans, electronic regulator valves and/or EC pumps. A central supply electronics unit can be connected to an AC voltage source, wherein the electronic components have an integrated power electronics device which produces the PWM operating voltage required for the electronic components. The central supply electronics unit is connected to the individual integrated power electronics devices for the electronic components, and produces the supply voltages required for the respective power electronics devices.

PMSM Drive Systems for Electric Active Steering (EAFS) Application: a Comparative Characterization

Abstract: The aim of the study described by the present paper is to compare sinusoidal and trapezoidal permanent magnet synchronous machine (PMSM) drives technologies for electric active front steering. The design issues for the motors and explanatory finite elements analysis results are illustrated. The simulations of the control systems and power electronics have been ran and the results are presented and discussed. Prototypes have been built and tested. Experimental results, including comparative trapezoidal and sinusoidal control are presented and commented.