Übersetzung für "Drehmomentdichte" in Englisch

Maximum torque density and excellent positioning accuracy were the decisive selection criteria.

The high torque density of the motor thus remains advantageously unaffected.

This embodiment likewise has a negative effect on the torque density and the degree of efficiency.

Moreover, the preferred structural part winding has a high space factor, allowing for a high torque density.

The TMB patented design provides the best possible torque density as well as high peak torque and extremely low torque ripple.

In other words, the cogging torque should be reduced without negatively affecting the efficiency and torque density.

A beveling of this kind is known to reduce the permanent magnet flux linkage and thus the torque density and the degree of efficiency of the motor.

Timken helps customers to increase the torque density of their planetary gearbox while reducing the friction torque.

Field weakening synchronous motors as a reluctance motor are cost effective solutions for applications which requires lower torque density.

High torque density translates into a very compact package with maximum torques as high as 448 Nm.

It has a torque density of 30 Nm/kg, which is practically a new record - a nominal torque of about 1,500 Nm is generated with a weight of less than 50 kg.

Specifically, as a first step, the CD Lab team will create analytic models for brushless drives with a significantly raised degree of efficiency and optimized speed and torque density.

The DURUMAX® T1MAX S co-rotating twin shaft extruder gearbox with "Enhanced"design reaches a torque factor of up 32 Nm/cm³ in combination with high safety factors for co-rotation extrusion.

The transverse flux machine (TFM) with its high torque density at low speeds fulfils these requirements very well and makes it possible to save gear steps or the typically very high gear reduction.

In fact, the torque density of TMB+ is increased by up to 20% while keeping the exact same footprint and reducing the power losses by up to 30%.

This arrangement basically also results in the reduction in cogging torque, but at the expense of the torque density and the degree of efficiency as well as in connection with increased manufacturing expenses for installing the partial magnets and their magnetization.

As a result of this, however, the torque density and the degree of efficiency are reduced, and/or increased manufacturing expenses are required to achieve greater accuracy.

SUMMARY OF THE INVENTION The present invention is based on the problem of providing an electric motor of the kind described above which has a low cogging torque as well as a high degree of efficiency and an efficient material utilization (torque density).

However, these machines offer little potential for further development in terms of reducing their mass and torque density and, when used in rail vehicles, these machines usually require a transmission.

The technical implementation of such an active part, in particular with surface-ventilated active parts, significantly contributes to the reduction in the temperature of the electrical winding located in the respective groove, so that the corresponding electric machines may be designed with a higher torque density.

According to a further embodiment, the drive is configured as permanent-excited synchronous motor. In order to equip the synchronous motor with an increased torque density, the provision of a high pole number, in particular greater than or equal to 16 poles, is advantageous.

In particular, embodiments of the present invention render possible an asynchronous machine that, in comparison with conventional asynchronous machines, renders possible a higher continuous torque whilst simultaneously continuing to provide high torque densities.

By way of example, an asynchronous machine that comprises for example a stator outer diameter in the range of 130 to 240 mm can be designed for the purpose of generating a torque density of between 35 Nm/I and 70 Nm/I in order to generate by way of example a torque in the range of 40 Nm to 350 Nm.

The asynchronous machine as claimed in claim 12, wherein the asynchronous machine (1) is configured to generate a torque density of between 35 Nm/liter and 70 Nm/liter.

In order where necessary to be able to provide a high torque density in the short term, suitably changing magnetic fields are generated with the aid of the windings that are provided in the stator in order to induce high rotor currents in the short circuited conductor that is provided in the rotor.

The proposed asynchronous machine in the case of identical outer dimensions is therefore able to provide an identical torque density as is the case in the case of conventional asynchronous machines.

In total, there is achieved a construction that is extremely expedient under the aspects of simple manufacture, simply assembly, maintenance friendliness, the high power density, the high torque density, operational safety, the weight reduction achievable, the cooling of the planetary gear system and the good sealing effect towards the outside.

This kind of machine, in comparison to conventional machines having the same construction volume, makes it possible to attain a substantially higher torque density on account of the possibility of increasing the torque by increasing the pole number.

In addition to the use of soft magnetic composites (SMC) as stator material and NdFeB high-energy permanent magnets, the focus was on optimizing torque density while simultaneously minimizing torque ripple.

The maxon EC-i 40 motor, thanks to the optimized magnetic design, offers a very high torque density and very low cogging torque.