Audi is using American supercharging muscle to give its new 3.0 liter TFSI V6 the desired wallop. Eaton Corporation has been enlisted by Ingolstadt to supply positive-displacement, Roots-type blowers that will work with direct injection to deliver 290 horsepower and fat, responsive torque down low on the tach. Roots blowers aren't anything new, but Eaton has refined the design with its latest Twin Vortices Series units. The TVS units add a fourth lobe to the rotors, and crank up the twist to 160 degrees for maximizing the amount of atmosphere the blower can pump out. Jettisonning turbochargers may help packaging when the V6 is crammed into the S4's engine bay, as well as reducing complexity by simplifying intake plumbing. 310 lb/ft of torque at 2,500 rpm will put a grin on anyone's face, and we'd expect to see this engine proliferate into many Audi engine bays. Press Release after the jump.

[Source: Eaton]

PRESS RELEASE

SOUTHFIELD, MI--Diversified industrial manufacturer Eaton Corporation today announced that its Twin Vortices Series™ (TVS™) supercharger has been chosen by Audi to power the automaker's all-new 3.0 liter TFSI V6 engine.

"Audi engineers did extensive comparative testing and found our new TVS supercharger provided superior throttle response and low-end torque coveted by drivers," said Joao Faria, president of Eaton's Powertrain and Specialty Controls Business. "Additionally, when paired with direct injection and enhanced transmission ratio, the TVS supercharger helps the engine achieve 290 hp with an average fuel economy of nearly 24 miles per gallon."

The supercharged 3.0 liter TFSI V6 is a member of Audi's family of ultramodern V engines and will go into production later this year. Audi has a tradition of developing supercharged engines dating back to grand prix racing cars in the 1930s.

The Eaton TVS is an all-new Roots-type positive displacement supercharger that features twin four-lobe rotors that are twisted 160-degrees. The intermeshing, high-speed rotor design pumps air directly into the engines intake system that when mixed with fuel creates more power. By comparison, the original Eaton supercharger features three lobes twisted 60 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.

With sales of $1.6 billion in 2007 and 11,000 employees around the world, Eaton's Automotive Group supplies the passenger car, light-truck and commercial vehicle industries with critical components that reduce emissions and fuel consumption and improve vehicle stability and performance. Principal products include, engine valves and valve train components, transmission and engine controls, superchargers, locking and limited slip differentials, cylinder heads, fluid conveyance components, decorative body moldings and spoilers.

Eaton Corporation is a diversified power management company with 2007 sales of $13 billion. Eaton is a global technology leader in electrical 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 81,000 employees and sells products to customers in more than 150 countries. For more information, visit www.eaton.com.


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