Schaeffler says it will shortly start volume production of its electromechanical camshaft phasing system for passenger cars.
The supplier maintains use of electromechanical phasing units rather than the current standard hydraulic systems allows the camshaft to adjust more quickly and accurately to prevailing engine operating conditions.
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The last few years have seen a boom in camshaft phasing systems, which control timing of the opening and closing of engine valves.
This enables optimum phasing of the cylinder intake/exhaust cycle, with engine speed and torque demands. Previously used only in high performance engines, variable opening and closing of inlet valves is now standard technology in modern petrol engines.
Camshaft phasing systems are now also being used more frequently on the outlet side too, including some of the latest diesel engines.
Until now, almost all camshaft phasing units have used hydraulic systems.
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