We generally differentiate between compression rings and oil control rings. The key task for both ring types is to mutually seal off the combustion chamber and crankcase.
- Sealing against combustion gases
- Heat dissipation
- Scrape off and spread oil
Inertia and gas loads, as well as high temperatures, place high technical demands on piston rings. Optimum durability and compliance with emissions regulations are only achieved by tailoring piston rings precisely to the particular engine.