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 Physics, photosynthesis and solar cells
01.12.2016 | University of California - Riverside

nachricht New process produces hydrogen at much lower temperature
01.12.2016 | Waseda 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: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

Im Focus: Fraunhofer ISE Develops Highly Compact, High Frequency DC/DC Converter for Aviation

The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

UTSA study describes new minimally invasive device to treat cancer and other illnesses

02.12.2016 | Medical Engineering

Plasma-zapping process could yield trans fat-free soybean oil product

02.12.2016 | Agricultural and Forestry Science

What do Netflix, Google and planetary systems have in common?

02.12.2016 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>