An oil sump moulded from DuPont™ Zytel® nylon resin, is helping the Swedish commercial vehicle manufacturer Scania meet new challenges with regard to noise, emissions and weight. The lightweight yet equally robust oil sump – the lower shell of the oil pan module - is amongst the host of innovative technical solutions incorporated by Scania in its new Euro 6 engines.
An oil sump moulded from DuPont™ Zytel® nylon resin is amongst the host of innovative technical solutions incorporated by Scania in its new Euro 6 engines. It has enabled a reduction in the weight of the component by over 50 percent, or 6 kg, versus its aluminium predecessor to improve fuel economy and reduce emissions.
The ground-breaking application was produced in Sweden by the Plastal Group AB, a leading supplier of engineered plastics to the automotive industry, with the material, design and processing support of DuPont representatives in the country and across Europe and the input of prototype specialists Idé-Pro of Skive, Denmark.Amongst the range of technological highlights contained within the new 440 and 480 hp (324 and 353 kW) 13-litre Euro 6-compliant engines, unveiled by Scania in spring 2011, is the premiere of an oil sump moulded from a heat-stabilized, glass-fibre reinforced grade of Zytel® 66 nylon. The adoption of the DuPont material for this application - a first for the truck market and only the second development for commercial production vehicles worldwide following the launch of the award-winning Daimler oil pan module in 2008 - has enabled a reduction in the weight of the component by over 50 percent, or 6 kg, versus its aluminium predecessor to improve fuel economy and reduce emissions. Perhaps just as significantly, with regard to the environmental impact of the noise emitted by trucks, Scania found switching from metal to plastic in the oil sump dampens engine noise to help meet Euro 6 noise emission standards.
Having settled on the initial design and material, Scania contacted Idé-Pro to undertake the first steps in the parts' development. Idé-Pro not only produces tools and moulds parts, but also offers the development tools and expertise needed during the prototype stage. In such a way the design of the mould could be optimized to minimize warpage.Beyond material selection, DuPont also assisted Scania in refining the sump's design and the production process, particularly with regard to achieving a consistently tight seal between the sump and the engine. This required very precise tolerance control of a large component, measuring 847mm (length) x 467mm (width) x 203mm (height), achieved by comprehensive mould flow analyses, prototype testing and ongoing optimisation of processing parameters. “Ribbing on the underside of the sump also plays a key role in remaining within the permitted tolerances for the part, as well as performing a secondary function as a defensive shield against stone impacts,” said Murray Smith development specialist at DuPont Performance Polymers in Sweden.
DuPont Performance Polymers is committed to working with customers throughout the world to develop new products, components and systems that help reduce dependence on fossil fuels and protect people and the environment. With more than 40 manufacturing, development and research centers throughout the world, DuPont Performance Polymers uses the industry’s broadest portfolio of plastics, elastomers, renewably sourced polymers, filaments and high-performance parts and shapes to deliver cost-effective solutions to customers in aerospace, automotive, consumer, electrical, electronic, industrial, sporting goods and other diversified industries.
Rémi Daneyrole | DuPont
3D scans for the automotive industry
16.01.2017 | Julius-Maximilians-Universität Würzburg
Improvement of the operating range and increasing of the reliability of integrated circuits
09.11.2016 | Technologie Lizenz-Büro (TLB) der Baden-Württembergischen Hochschulen GmbH
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...
Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.
The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...
10.01.2017 | Event News
09.01.2017 | Event News
05.01.2017 | Event News
17.01.2017 | Earth Sciences
17.01.2017 | Materials Sciences
17.01.2017 | Architecture and Construction