In addition to the task of sealing off the combustion chamber, piston rings also have the function of dissipating the heat that arises in the piston to the cylinder surface and that of controlling the oil balance.
As temperatures, pressures, and rotational speeds continue to rise, piston rings are subjected to ever increasing loads. Concepts for lower wear and friction, better sealing, and greater break resistance are in demand. MAHLE is therefore continuously developing new coatings and ring design variants.
The MAHLE piston ring product range offers the optimal piston ring or piston ring pack for every engine. The broad range of products includes compression rings and oil control rings in various designs, profiles, and technologies.