Ring packs for friction optimised engines

Global environmental concerns are driving internal combustion engine designs. The worldwide legislations are setting up milestones to achieve the agreed vehicle emission goals. Development of innovative exhaust gas aftertreatment systems is one approach to meet emission targets, new combustion strategies and improvement of engine mechanical efficiency is another. When it comes to reducing engine friction power losses (Friction Mean Effective Pressure), the power cell unit — and especially the piston ring pack — present great potential. Mahle calculates that the improvements could lead to a reduction of engine fuel consumption of up to 5 %.