Study of timing belt tensioner behaviour

Lovas, László [Lovas, László (géptan és gépelemek), author] Járműelemek és Hajtások Tanszék; Daniel, Play; Márialigeti, János [Márialigeti, János (Géptan és gépelemek), author] Járműelemek és Hajtások Tanszék

English Scientific Conference paper (Chapter in Book)
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    Toothed belt transmissions are widely used in modern engineering, from inkjet printer transmissions through motorbike primary and secondary transmissions to airplane luggage elevator transmissions. They are silent, do not need excessive maintenance, and allow cost reduction. Similarly, internal combustion engine timing drive transmissions are often realized by timing belt. In engine timing drive transmissions, driving and driven pulleys generally do not allow adjusting belt tension. Thus, a belt tensioner is used to furnish and maintain preload force. It also compensates belt length variation under load. The tensioner consists of a short arm fixed by pivot on the engine block on one end and has an idler pulley on the other end. A torsional stiffness and a torsional damping element also join the arm and the engine block. Numerical model and simulation software were developed to modelize the timing drive transmission. For a given belt transmission layout, various stiffness values were tested numerically. Simulation input data come from measurements on real engines. Viscous and Coulomb-type damping cases were tested. System response to various parameter values is studied and discussed.
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    2021-04-14 13:27