Chain or toothed belt drive for driving valves in IC engines - has irregular divisions on chain wheels interacting with different length chain links

摘要

The chain links (1) or toothed elements which make up the chain or toothed belt are of different length. The chain or belt runs on chain or toothed belt wheels (2) with correspondingly different tooth spacing. The number of teeth of all the toothed wheels of the chain drive and the number of chain links is divisible by a whole number (n) and the chain comprises groups of (n) chain links of different length with which groups of (n) teeth of different spacing correspond on the circumference of the chain wheels. The chains and chain wheels or belt and toothed wheels can have circumferential markings to prevent faulty assembly. USE/ADVANTAGE - Chain or toothed belt drive for valves in IC engines is designed for reduced vibration and noise.