PISTON RINGS
A piston ring is a metallic split ring that is attached to the outer diameter of a piston in an internal combustion engine or steam engine.
Function is to fully maintain in-cylinder airtightness between the piston and cylinder wall. It works hard to keep a lid on combustion gas leaking into the gap between the piston and cylinder created at the time of an explosion.
JU Piston Rings
Jindal Udyog manufactured Modern pistons ring which is made up of three different types of piston rings. Starting from the top of the piston you have the top compression ring. This is the primary ring that seals the piston to the combustion chamber wall. Below this ring you have the second or intermediate compression ring. This ring backs up the top ring by sealing the combustion chamber while also aiding in heat transfer and scraping oil from the cylinder wall. Finally, you have the oil control ring at the bottom, which has the piston ring function of controlling the amount of oil delivered to the combustion chamber wall for lubrication and cooling.