Eaton Advances Supercharger Technologies: Saving Fuel and Reducing Emissions

Date: September 22, 2010

MARSHALL, Mich . . .  Diversified industrial manufacturer Eaton Corporation today announced that, in addition to boosting engine performance, its superchargers can provide up to a five percent fuel savings and reduce emissions compared to competing technologies.

“We have won four new programs this year because of the advancements we’ve made to superchargers in overall performance and value compared to competing technologies, such as turbochargers,” said Darryl Niven, general manager, Eaton Supercharger Division.  “Our superchargers are fuel-efficient, maintenance-free and provide flexibility in packaging space that makes them easily adaptable for use in a variety of engines.”

Recent examples of the trend toward supercharging include:
• Nissan recently announced its 2011 1.2L, 3-cylinder Micra city car will be powered an engine with Eaton’s most advanced supercharger, the Twin Vortices Series (TVS®).  Nissan says the engine is “aiming to achieve the lowest level of fuel consumption in the world for a gasoline-powered engine,” and offers the engine power output equivalent to a 1.5L engine.
• China’s largest independent automaker, Chery Automobile Co. Ltd., will debut the first use of Eaton superchargers in China on three vehicles, the 2010 1.6S Tiggo, 1.3S A3 and Riich 1.3S G3.
• Volkswagen’s 2010 1.4L TSI Twincharger four-cylinder engine combines a supercharger with turbocharging, and won the International Engine of the Year Award for the second consecutive year.  The engine is used in more than eight Volkswagen models.
• The 2010 Porsche Cayenne S Hybrid SUV features an Audi 3.0L V6 direct fuel- injection engine with Eaton’s TVS supercharger that produces 20 percent less carbon dioxide emissions compared to gas-only systems and achieves 26mpg.
• The 2010 Volkswagen Touareg Hybrid features a supercharged 3.0L TSI V6 engine that is shared with the automaker’s Audi brand and matched with a new 8-speed automatic transmission and an electric-hybrid system to provide 17 to 25 percent better fuel economy than a conventional Touareg.
• Audi will replace the 3.6-liter V-6 and the 4.2-liter V-8, in favor of two versions of the company’s relatively new 3.0-liter supercharged V-6 on its 2011 Q7 sport utility vehicle (SUV). The new supercharged V6 will provide 17 to 24 percent better fuel economy than the current 3.6L V6 and 4.2L V8 engines. 

Eaton supercharger designs boosts power and low-end torque that drivers want while also providing vehicle manufacturers with the option of using a smaller, more efficient engine with no loss in performance or drivability. The original Eaton supercharger design is a Roots-type positive displacement supercharger that features twin three –lobe rotors that are twisted 60-degees. The intermeshing, high-speed rotor design pumps air directly into the engines intake system that when mixed with fuel creates more power instantly and without the lag that is common with turbo charging.

Eaton’s most advanced supercharger, the Eaton TVS® supercharger, is also a Roots-type positive displacement device but it has twin four-lobe rotors that are twisted 160-degrees. The fourth lobe and added twist, when combined with redesigned air inlet and outlet ports, creates a smooth, highly efficient flow of air into the engine and has improved noise and vibration characteristics.

Eaton superchargers perform well with all engine types, including diesel, which produce cooler exhaust temperatures that can limit the efficiency of turbochargers. Supercharged engines can also provide up to a 50 percent reduction in emissions during acceleration and deceleration events when compared to a non-supercharged engine creating the same amount of power.

Eaton superchargers also excel at lowering emissions on cold starts and for start/stop hybrid motors and because they are relatively compact they can be placed anywhere near the engine.

“Packaging becomes a real issue for our customers, especially with hybrid variations because they have to fit more components into the same space or sometimes a smaller space,” Niven said. ”Our design is compact and flexible and allows our customers to fit it into their current engine architecture and also across multiple platforms.”

Eaton is the worldwide leader in original equipment supercharger solutions. The first original equipment application of an Eaton supercharger debuted on the 1989 Ford Thunderbird Super Coupe.  Since, in addition to the vehicles listed above, Eaton superchargers have appeared on various Mercedes Benz models, the Buick Park Avenue Ultra, Buick Regal, Pontiac Grand Prix, Ford Mustang Cobra SVT, Ford Mustang Shelby GT500, Ford Lightening SVT, MINI Cooper S, Jaguar XKR, Range Rover Sport, Cadillac STS-V, Cadillac XLR-V, Chevrolet Cobalt SS and the Saturn Ion Redline.

Eaton’s TVS supercharger design was first introduced in 2008 on the Audi A6, Corvette ZR1, Cadillac CTS-V, Jaguar XJ XK XF and Range Rover vehicles and in addition to those mentioned earlier, appeared in 2010 on eight Audi models including the Audi S4 and S5.

Eaton’s Vehicle Group is a global technology leader in truck and automotive drivetrain and powertrain systems for performance, fuel economy and safety with products ranging from engine valves to hybrid drive systems. The group serves Automotive and Truck businesses with $2.7 billion sales in 2009, and is organized by global regions.

Eaton Corporation is a diversified power management company with 2009 sales of $11.9 billion. Eaton is a global technology leader in electrical components and systems for power quality, distribution and control; hydraulics components, systems and services for industrial and mobile equipment; aerospace fuel, hydraulics and pneumatic systems for commercial and military use; and truck and automotive drivetrain and powertrain systems for performance, fuel economy and safety. Eaton has approximately 70,000 employees and sells products to customers in more than 150 countries. For more information, visit  

Darlene Oleksik, (248) 226-6788
Erin Millerschin, (248) 276-1970