Push belt transmission

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Push belt in a Toyota Super CVT-i transmission

A push belt transmission is a form of continuously variable transmission with a loop . In shape and structure it is similar to the V-belt drive . However, the V-belt in the V-belt transmission transmits the power through tensile force, a push link belt (push belt) transmits the force through a compressive force.

In the push-link belt drive, a large number of steel slats are easily slidable on a circumferential tensioning belt. This tension band pulls the slats into the wheels, which are shaped like V-belt pulleys. But since the slats can be moved on the belt, they cannot transmit the force with tension because they would be pulled apart. They therefore accumulate on the other side of the drive and the force is transmitted by sliding the slats. A spread of the ratios up to 6 is achieved.

The biggest advantage over V-belts or tension chains is that a higher power can be transmitted because the force is transmitted through pressure and therefore counteracts the pretension of the belt instead of adding to it as with V-belts or link chains.

The disadvantage is the lower possible gear ratio spread than with a link chain due to the larger minimum radius.

Among others, the following vehicles are or have been offered with push link belt transmission:

Web links

Individual evidence

  1. ↑ http://www.google.com/patents/EP0329206
  2. ↑ Patent DE602004007817 : Push belt . Registered on October 8, 2004 , published on March 17, 2008 , applicant: Robert Bosch GmbH, inventor: Robert Arnoldus Mutsaers, Lucas Hendricus Prinsen, Cornelis Johannes Van Der Meer. ‌
  3. ↑ F. van der Sluis, A. Brandsma, J. van Lith, K. van der Meer, A. van der Velde, B. Pennings: Stress reduction in push-link belts for continuously variable automatic transmissions . In: Konstruktions , January / February 2004, pp. 48–50.
  4. ↑ Joachim Deleker: Continuously variable CVT transmission: transmission without gears . In: auto motor und sport . December 3, 2013 ( auto-motor-und-sport.de ).
  5. ↑ CTX automatic transmission , ford-fiesta.de