Renault trucks will use 3D printing for the design of engines of the future

By:   Fedora Atjeh Fedora Atjeh   |   Oktober 30, 2017
The emission regulations are very restrictive for all vehicles with combustion engines, and trucks are not far from the guidelines imposed on the industry to achieve a cleaner atmosphere. The problem is that while trucks driven by electric motors arrive in any of their versions, the current diesel have to juggle.

Renault trucks will use 3D printing for the design of engines of the future

To continue playing limbo with the limits of homologation and with a technology that does not give much more than itself, manufacturers have declared war on the peso. Moving a lower mass requires burning less fuel and to achieve this, Renault has launched itself headlong into 3D digital printing to scratch a few kilograms to its latest generation of engines.

Exceeding the Euro 6 standard while maintaining the same levels of performance is not an easy task, that's why the French manufacturer has turned to the creation of complex pieces capable of sticking a good snip on the scale. The process used is called additive manufacturing in metal layer by layer.

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The results are promising with a regime that yields a saving of 25% of the final weight, 120 kg of the 525 kg that weighs the original engine, being able to reduce in step the final size of the thermal block. The alternator clamp, the cable support or even the rockers would be created by digital printing.

Of the 841 parts that make up the engine, 200 have been eliminated through integration, eliminating a considerable amount of assembly hours in the production chain if this technique were taken to mass production. The block of the cylinders has 80 less pieces and other 45 that would be made in a single piece next to the cylinder head.

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At the same time that the weight of the set is reduced, three-dimensional printing allows the manufacture of more resistant parts and with fewer intermediate components, thus achieving greater reliability and an increase in performance.

At the moment it is just a prototype engine with Euro 6 Step C specifications of its popular four-cylinder DTI 5 engine. It is a functional unit in which some pieces have been bench tested for 600 hours.

Video Source : Youtube

In practice, this manufacturing technology will result in less consumption for industrial vehicles that equip it when they are idling and have a higher load capacity when working.

Maybe digital printing is the last bullet in the bedroom of diesel combustion trucks, because sooner or later the future will be electric, especially for the giants of the road 

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