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Rotrex Develops Electrically-Driven Fully Variable Supercharger

Posted on July 02, 2008

Rotrex has developed an electrically-driven fully variable supercharger for automotive and transportation markets. In addition to its first application on a fuel cell hybrid, the product is also targeted for mild- and full-hybrid systems.Due to the design of the Rotrex traction drive which can achieve speeds up to 300,000 rpm, high-speed and efficient low-inertia impellers can be applied. The electric motor only needs to turn up to 20,000 rpm response time to reach 90% boost is lower than 300 milliseconds.The Rotrex traction drive uses an elastic annulus with a small pre-span to secure conta...

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battery , electric , fuel cell , hybrid , pem