In modern car engines, the oscillating masses, the inertia forces of the moving engine parts has to be kept as low as possible. Small oscillating masses are not only the basis for the engine smoothness; they also have a great influence on the reliability and life of the components. The smaller oscillating mass in the crank mechanism minimizes, the weaker the vibrations and reduces friction and wear of the parts.The contribution of the piston pin to the oscillating mass can be between ten and thirty percent. Mass reduction of the piston pin has a corresponding large effect.In the newly developed MAHLE composite piston pin, an aluminum core is pressed in a steel sleeve. This enables a weight reduction in the piston pin up to twenty percent for gasoline engines and up to thirty percent for diesel passenger car engines.As the production of piston pins should be kept simple and economical, the new composite piston pin utilizes a forming process for its manufacturing.This paper introduces the design principle, the manufacturing process and properties of the composite piston pin.
Composite Piston Pin, A New Lightweight Design Concept
Sae Technical Papers
SAE 2015 World Congress & Exhibition ; 2015
2015-04-14
Aufsatz (Konferenz)
Englisch
Lightweight piston design in hand-held power tools
Springer Verlag | 2017
|Lightweight Piston Design for Increased Reliability and Productivity Requirements
SAE Technical Papers | 2004
|Superbus concept relies on lightweight composite construction
Tema Archiv | 2008
|Piston Sealing System Structure Design for Automobile's Lightweight Auto-Transmission
SAE Technical Papers | 2014
|A new concept for steel-composite lightweight valves
Kraftfahrwesen | 2000
|