Vibracoustic develops better start-stop manners
ERJ staff report (DS)
Weinheim, Germany - Vibracoustic said it has developed a new system to improve comfort when fuel-management systems start and stop the engine to save fuel. The solution on offer: a decoupled pulley with mechanical overrunning clutch.
In modern engine systems, the engine is stopped as the vehicle comes to a standstill and is then started again as it moves on. However, this eco-friendly technology causes annoying noises and vibrations which can irritate the passenger of a vehicle over the course of time, especially when stop-and-go traffic.
The Vibracoustic solution is to fit a soft elastomer spring between crankshaft and belt drive, to decouple annoying crankshaft vibrations at low engine speeds and a mechanical overrunning clutch to eliminate the severe vibrations which arise as the engine is restarted and the vehicle moves on.
Stefan Gräber, Head of Business Development in the Torsional Vibration Damper Division, says: "Our product combines the outstanding insulation properties of a standard decoupled pulley in stationary operation with a mechanical overrunning clutch function during engine start. This system extends the durability of all belt drive components and ensures silent, vibration-free operation when the engine is started again by the fuel-saving start-stop system."
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Press release from Vibracoustic
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