What are the Types of DMF?

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Types of Dual Mass Flywheel:

The main type is named a planetary DMF. The cogwheel and also the torsional damper are incorporated into the most flywheel. For this purpose, the most flywheel is split into primary and secondary pinion-connected masses, and between them, there are four different types of bent springs:


Individual bent spring:

The simplest sort of bent spring is that the standard single spring.


One-phase bent springs in parallel:

The standard springs are called parallel springs of 1 phase. These contain an outer and an innerspring of virtually equal lengths and are connected in parallel. The individual characteristics functions of the 2 springs are added to make the characteristic curve of the spring pair.


Two-phase bent springs in parallel:

In the case of a two-stage spring, there are two curved parallel springs, one inside the opposite, but the interior spring is shorter so that it acts later. The graphical record of the outer spring is customized to extend when the engine is started. The softer outer spring only acts to extend the problematic resonance frequency range. When the torque increases, reaching the most value, the innerspring also acts. During this second phase, the inner and outer springs work together. The collaboration of both springs thus ensures good acoustic isolation in any respect engine speeds.


Three-phase bent spring:

This curved spring consists of an outer and two inner springs with different elastic characteristics connected serially. This category of bent spring uses the 2 concepts together: parallel and series connection to confirm optimal torsional compensation for every value of torque.

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