Torsion crank axle

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The torsion crank axle is a type of rear wheel guide in front-wheel drive automobiles . Like the twist beam axle, it belongs to the semi-rigid axles .

The wheel carriers connected with a torsionally soft axle bridge are rigidly attached to a support lever ( trailing arm, spring sword) each . The axle bridge is a rigid, but torsionally soft beam, such as a slotted tube or a U-profile. As a result, the two trailing arms can be elastically rotated against each other during unilateral compression. The two wheels compress largely independently of each other, but always remain in alignment (as with a rigid axle ).

The torsion crank axle was used in many models from DKW , Auto Union and Audi NSU from the end of the 1950s , first in 1959 in the DKW Junior , and most recently in the Audi Coupé B3 until the end of 1996 , but also in the VW Passat B1 , which largely coincided with the Audi 80 B1 is identical. As “swords”, the wings were torsionally soft and flexible in the transverse direction, which is why a Panhard rod was necessary for transverse guidance . To stiffen the axle bridge (it acts as a stabilizer ), a torsion bar was built into the U-profile cross member in some versions . Torsion bars or coil springs were used for suspension.

Chrysler Torsionskurbelachsen used from 1980 to 1996 in the K - platform (about the Dodge Aries , Plymouth Reliant , Chrysler LeBaron and also some others).

literature

  • Dieter Korp: Now I'm helping myself , Volume 22: Audi 60, 72 / L, 75 / L, 80 / L, Super 90, until August 1972
  • Dieter Korp: Now I'm helping myself , Volume 51: Audi 100 - all models (from August 1974), Motorbuch Verlag, Stuttgart, ISBN 3-87943-419-0

Web links

Individual proof

  1. Dieter Korp , Now I help myself Volume 22 Audi-60 / L 72 / L 75L 80 / L Super 90 Variant