1991-02-01

Camshaft Chain Drive Package Components for Internal Combustion Engines - The System Approach 910427

This paper deals with the design, development and supply of complete camshaft chain packages with particular reference to the whole system approach. The whole system embraces the timing chain, tightside guide, cam to cam guide, slack side pivot blade, tensioner assembly and cam and crank sprockets - also included are associated oil pump and accessory chain drives often complete with engine front cover assemblies.
With the rising demands for quality and cost savings, the relationship between vehicle engine makers and component suppliers has entered a new era of profound change which is transforming the automobile component industry.
The demands now placed on cam chain components resulting from multi cam and multi valve systems are discussed together with the requirements of a more dedicated and detailed technical approach to all associated camdrive items.
The involvement and committment by the component supplier in the way of facilities is dealt with in detail, involving Computer Aided Design, stress calculation, development samples and finally series production supply.
The achievement of 300.000 km durability for all component systems is discussed involving a variety of modern engine designs embracing multi cam, multi valve types.
The work culminates in a state of the art appraisal of latest technology and techniques now necessary for effective cam driving.
The vital importance in the formulation of close associations with engine makers, is highlighted, so both supplier and user can optimise on low cost, high quality design of all cam drive components focusing on the supplier user partnership approach.

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