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Hemen Yayinlanmak Üzere July 17, 2008

Irtibat: Kathy Brysse

Belt vs. Chain – Study on the Potential for CO2-Saving by the Timing Drive

The timing drives of combustion engines for passenger car engines is nowadays almost exclusively realized by toothed-belts or chains. As part of the intensified efforts to reduce CO2 emissions of combustion engines, the lower friction losses of the toothed-belt drive gain increasing interest.  In order to quantify this basic advantage, FEV in Aachen, Germany – an internationally recognized leader in the design and development of internal combustion engines - has been contracted by the belt drive system suppliers Dayco, Contitech and Gates to conduct an independent study.

Target of the study is to evaluate the differences between chain and toothed-belt drive in respect to friction as well as the noise relevant excitations, using a state-ofthe-art European combustion engine. In addition, the impact on fuel consumption and NVH shall be quantified and evaluated.

The results of the investigations will be presented during this year’s Aachen
Colloquium for Automobile and Engine Technology (6th to 8th October 2008).