Efficient Automotive Transmission & Driveline
The move to higher, multi-speed automatic transmissions to reduce emissions and improve fuel economy invites opportunities to reduce weight and frictional loss.
More sophisticated transmissions systems face aggressive fluids and increased weight from additional components. DuPont high-performance thermoplastics, elastomers, and specialty polymers can be used in automotive transmission and driveline components and systems to take out unneeded weight and also reduce frictional loss while extending the durability and reliability of mechanical components.
Powertrain Efficiency: Six of every seven liters of fuel put into a vehicle are lost to inefficiency, and a large portion of that is due to frictional loss. DuPont solutions reduce frictional loss and have the added benefit of reducing manufacturing costs.
Lightweighting: Using high-performance plastics and composites can shed pounds in valve bodies and covers, transmission control modules, baffles, and more.
Improved Performance: DuPont™ Vespel® parts reduce friction and improve the performance and lifespan of underhood components.
It has been calculated that six of every seven liters of fuel put into a vehicle are lost to inefficiencies. Connecting inefficiencies to friction, studies have found that somewhere around 10 percent of this lost energy is attributed to friction between moving parts.
Information & Ideas
- Meeting a Baffling Design Challenge
- Vehicle Weight Reduction
- Committed to Sustainable Mobility
- Automatic Transmission Seals
Kevlar® Engineered Elastomer for Tire Reinforcement
Kevlar® Engineered Elastomer for tire reinforcement is based on a new method to disperse para-aramid pulp into rubber. Read the study that explains the science behind this innovative pulp that has been adopted with success in the automobile industry.
Innovative Ideas for Metal Replacement
DuPont collaborates with customers worldwide to develop innovative metal replacement applications to make cars, planes and other equipment more fuel- and cost-efficient.
- Supporting Sustainable Mobility
- High Performance Materials
- Engine Efficiency for Lower CO2
- Vespel® SP-21 Thrust Washers
- Vespel® Thrust Bearings for EGR Valve
Case Study: Cooling System Hoses
DuPont™ Vamac® and DuPont™ Kevlar® work together to help create cooling system hoses with exceptional strength, chemical resistance, and durability in automobiles.
DuPont™ Vespel®SP-21D Thrust Washers
Thinner, lighter Vespel® SP-21D thrust washers replace all-metal needle bearings in a new 7-speed automatic transmission for rear-drive vehicles
Fuel Hose & Tubing Solutions
Products from DuPont, including DuPont™ Viton®, DuPont™ Teflon®, DuPont™ Kevlar®, and DuPont™ Hypalon®, help improve F200 fuel hose and tubing performance, for proven gains in permeation resistance in automobiles.