The Renault Trucks Lyon Powertrain Engineering department has designed a prototype DTI 5 four-cylinder Euro 6 step C engine produced with additive manufacturing. The engine’s rocker arms and camshaft bearing caps were manufactured via metal 3D printing and successfully bench tested for 600 hours inside a Euro 6 engine. The number of components in the DTI 5 engine has been reduced by 25 percent, making a total of 200 fewer parts.

“The aim of this project is to demonstrate the positive impact of metal additive manufacturing on the size and weight of an engine. This process has enabled us to reduce the weight of a four-cylinder engine by 120 kg or 25 percent,” says Damien Lemasson, project manager at Renault Trucks. “The tests we have carried out prove the durability of engine components made using 3D printing. It’s not just cosmetic.”


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3D Printing / Additive Manufacturing, News