Date: October 31, 2005

Next Generation Eaton Supercharger Provides Bigger Boost in Smaller Package

SOUTHFIELD, MICH … Diversified industrial manufacturer Eaton Corporation today unveiled its newest generation of Roots-type supercharger design that will allow automakers to use smaller, more efficient compressors to create more engine boost. The company unveiled the new design, called Twin Vortices Series (TVS™) at the Specialty Equipment Manufacturers Association (SEMA) tradeshow in Las Vegas.

“We think the TVS™ is a game changer that will allow our customers to make more horsepower without the traditional engineering tradeoffs,” said Jeff Romig, vice president and general manager of Eaton’s supercharger business. “The TVS design has remarkably improved efficiencies and broadens the performance range of the supercharger across an engine’s entire performance range.”

The new patented TVS™ design features four-lobe rotors and high-flow inlet and outlet ports that greatly enhance thermal efficiency, enabling greater volumetric capacity at higher revolutions per minute (RPM). Previous Eaton Roots-type designs featured only three-lobe rotor assemblies. The new TVS™ supercharger design is scalable and adaptable to virtually all engine designs.

The TVS™ supercharger design builds on Eaton’s market leadership position of designing and manufacturing Roots-type superchargers for premiere automotive brands.

The first original equipment application of an Eaton supercharger debuted on the 1989 Ford Thunderbird Super Coupe. Since, Eaton superchargers have appeared on the Buick Park Avenue UltraTM, Buick RegalTM, Pontiac Grand PrixTM, Ford Mustang Cobra SVTTM and the Ford Lightening SVTTM. The current generation of Eaton supercharger is available on the MINI Cooper STM, Jaguar XKRTM, Range Rover SportTM, Cadillac STS-VTM, Cadillac XLR-VTM, Chevrolet Cobalt SSTM, Saturn Ion RedlineTM and the Mustang Shelby GT500TM.

Eaton has development programs underway with several automakers to incorporate the TVS™ into future vehicle programs and it is working with its aftermarket partners to make the TVS™ technology available to performance enthusiast in 2007.

Eaton Corporation is a diversified industrial manufacturer with 2005 sales of $11.1 billion. Eaton is a global leader in electrical systems and components for power quality, distribution and control; fluid power systems and services for industrial, mobile and aircraft equipment; intelligent truck drivetrain systems for safety and fuel economy; and automotive engine air management systems, powertrain solutions and specialty controls for performance, fuel economy and safety. Eaton has 60,000 employees and sells products to customers in more than 125 countries. For more information, visit

Contact: Jim Parks
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