Checkout Different Roles Of Piston Rings ....

 A piston is one of the main component of reciprocating engines. And also Piston are employed in  reciprocating pumps, gas compressors and pneumatic cylinders, among other similar mechanisms.Pistons are commonly made of a cast aluminum alloy and various nickel-based alloys, ensuring hardness and the strength to fulfill their mission for excellent and lightweight thermal conductivity . 

Very Important part in Piston is Piston rings.The piston rings is a spring tensioned ring set in grooves in the circumference of a piston which are made to maintain the cylinder and combustion pressure of the automobile. Matarial used to make piston rings is cast iron of fine grain and high elastic material.

Piston rings play different roles:-

  1. They transfer 60 percent of the heat from the piston to the cylinder wall.
  2. The main function of PISTON RING To give a gas-tight sealing of the clearance between the piston and the liner. 
  3. They prevent the fuel/air mixture and exhaust in the combustion chamber from leaking into the sump during compression and combustion.
  4. They keep oil in the sump from leaking into the combustion area, where it would be burned and lost.
  5. Piston rings are fitted in grooves which have been cut in the piston. They are split at one end so they can expand or slipped over the end of piston.
  6. Piston rings prevent the piston from knocking on the cylinder wall.

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