Next-generation Eaton supercharger powers Toyota TRD Aurion
Third Quarter 2007
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Drawing on its motor sports heritage, Toyota Australia recently unveiled a new performance brand, TRD (Toyota Racing Development), and an all-new vehicle, the Aurion for the Australian market. The TRD Aurion will contain the world's first production application of diversified industrial manufacturer Eaton Corporation's Roots-type supercharger design called the twin vortices series (TVS).
The TVS supercharged TRD Aurion is powered by a 3,5 litre V6 that develops around 235 kW. Harrop Engineering, a certified Eaton distributor, developed the complete supercharger package for the vehicle. The TRD Aurion is slated to go on sale in Australia later this year.
TRD chief engineer Stephen Castles said that the manufacturing of the supercharger components was simplified as the Eaton-designed unit does not require an intercooler. Eaton's new design substantially reduces engine noise and - unlike a turbocharger - improves power and torque across the entire rev range.
"It is totally ironic that the first application of the TVS appears on the world's first TRD production vehicle but we really think it is fitting," said Jeff Romig, vice president and general manager of Eaton's supercharger business. "This vehicle is really focused on providing refined performance and an athletic driving experience and we think the instantaneous torque and boost from the TVS helps provide those dynamics."
The 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.
Eaton claims to be the world's largest manufacturer of original equipment superchargers.
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