Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

DuPont™ Vespel® adds to its portfolio of solutions to boost efficiency, drive out costs in ‘hot, dirty’ operating environments

06.04.2009
The DuPont™ Vespel® parts and shapes business expands its high performance portfolio with Vespel® SP-2515 polyimide parts, which can improve dimensional control, reduce component weight and drive cost out in fluid- and motion-control systems.

“This new product supports our strategy to put science to work in ways that help reduce oil consumption and greenhouse gas emissions,” said Dave Ritchey, Vespel® global transportation marketing director.


Photo: DuPont
DuPont™ Vespel® introduces Vespel® SP-2515 polyimide parts, which can improve dimensional control, reduce component weight and drive out cost in fluid- and motion-control systems.

“Vespel® SP-2515 – which can improve efficiency by reducing friction, weight and cost – is one of several new product and design innovations from Vespel®, which accesses the vast DuPont network of global R&D and application development centres to meet specific market needs.”

Parts made from Vespel® SP-2515 demonstrate a low coefficient of thermal expansion to better match metal, excellent wear properties against aluminium and a low coefficient of friction – all of which can help improve dimensional control, reduce weight and increase component efficiency for lower total system cost.

“The metal friendly nature of Vespel® SP-2515 enables the use of lightweight aluminium as a mating surface for rotating or moving parts,” said Ritchey. “The good wear of Vespel® SP-2515 can eliminate heavy, expensive steel inserts, used to protect the aluminium parts from aggressive materials, such as cast iron or filled thermoplastics.”

Additionally, parts made of Vespel® SP-2515 offer high thermal conductivity – more than four times higher than parts made of Vespel® SP-21 – to help remove heat from critical bearing surfaces, which can lead to cooler running parts and higher PV (pressure x velocity) limits.

Vespel® SP-2515 is initially targeted for the global automotive and commercial vehicle industry where tight tolerances, durability and improvements in energy efficiency are demanded.

Recently commercialized in seal rings, which demand low friction, extreme tolerance control over a broad temperature range, and long life, Vespel® SP-2515 has demonstrated more consistent leakage control than cast iron and other polymeric alternatives. The ability to ‘fine tune’ leakage rates over a broader temperature range helps deliver an efficient and smooth operating transmission and can also lead to a smaller oil pump – which helps reduce parasitic energy losses.

“While extensive testing has shown Vespel® SP-2515 improves the performance of transmission seal rings, we also see attributes which are beneficial more broadly, such as in hydraulic valves, thrust washers and bushings in powertrain applications,” said Ritchey.

Additionally, Vespel® SP-2515 performs very well in environments where contamination particles like carbon, dirt or metal debris can cause rapid failure of components – an extremely important feature in engine components like EGR (exhaust gas recirculation) bushings and turbo linkages where dirt is a constant problem.

For more than 40 years, the Vespel® parts and shapes business has delivered ‘big science, part by part, faster than ever before’ through high-performance, cost-effective solutions for critical fluid- and motion-control systems. In automotive and commercial vehicles, Vespel® parts are used to manage friction in powertrain applications ranging from emission components, variable valve systems, turbochargers and air induction modules. In driveline applications Vespel® parts excel in seal rings, thrust washers and fork pads in automatic, continuously variable, and manual transmissions, transfer cases and torque converters. In heavy-duty off-road transmissions and hydraulic motors, Vespel® seal rings and thrust washers deliver long life and cost-effective solutions to meet short lead time demands and low-volume production requirements.

For more about Vespel® SP-2515, visit tryvespel.dupont.com. For more information about DuPont™ Vespel®, visit vespel.dupont.com.

DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.

The DuPont Oval Logo, The miracles of science™, DuPont™ and Vespel® are registered trademarks or trademarks of E. I. du Pont de Nemours and Company or its affiliates.

Horst Ulrich Reimer | DuPont
Further information:
http://www.dupont.com

More articles from Materials Sciences:

nachricht Manchester scientists tie the tightest knot ever achieved
13.01.2017 | University of Manchester

nachricht CWRU directly measures how perovskite solar films efficiently convert light to power
12.01.2017 | Case Western Reserve University

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Designing Architecture with Solar Building Envelopes

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...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

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...

Im Focus: Bacterial Pac Man molecule snaps at sugar

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...

Im Focus: Newly proposed reference datasets improve weather satellite data quality

UMD, NOAA collaboration demonstrates suitability of in-orbit datasets for weather satellite calibration

"Traffic and weather, together on the hour!" blasts your local radio station, while your smartphone knows the weather halfway across the world. A network of...

Im Focus: Repairing defects in fiber-reinforced plastics more efficiently

Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.

Defects in FRP pieces may be production or operation-related. Whether or not repair is cost-effective depends on the geometry of the defective area, the tools...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

Multiregional brain on a chip

16.01.2017 | Power and Electrical Engineering

New technology enables 5-D imaging in live animals, humans

16.01.2017 | Information Technology

Researchers develop environmentally friendly soy air filter

16.01.2017 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>