Piston rings play a key role in internal combustion engines. This spare part is included in the piston grooves, its main function is to seal the combustion chamber, where gases are burned, and the energy needed to move the car or machinery is generated.
PISTON RINGS FUNCTIONS
SEALING THE COMBUSTION CHAMBER
As we mentioned at the beginning, their main function is to seal the combustion chamber. During the compression cycle, they prevent hot gases and combustion products from escaping into the engine crankcase. It ensures that the power generated by the explosion of the air-fuel mixture is converted into motion, rather than energy loss.
Another role it plays is oil control. Two types of rings, one upper and one lower, help maintain the proper balance of oil on the cylinder walls. The upper segment scrapes off excess oil, preventing it from reaching the combustion chamber and preventing inefficient combustion. The lower ring ensures perfect lubrication by distributing the oil on the cylinder walls.
In addition, they help to dissipate the heat produced during combustion to prevent the engine from overheating and therefore to function properly.
MAINTENANCE AND LONGEVITY
Keeping this engine part in good condition is essential. Excessive wear can lead to reduced compression, increased oil consumption and loss of power. Therefore, if piston rings are worn, it is highly recommended to replace them with new ones to maintain good engine performance.
TYPES OF PISTON RINGS
The following shows the different shapes that piston rings can have:
Compression ring: located in the first groove of the piston and whose main function is to create pressure to cause sealing during the combustion process. Also known as the fire ring.
Scraper ring: usually located in the second groove and is responsible for removing excess oil from the combustion chamber or liner wall.
Oil ring: also known as a grease ring, it is designed to provide the necessary lubrication between the piston and the sleeve. It is located in the third groove of the piston.
At Oryx Parts we have a wide range of piston rings for both passenger cars and industrial machinery. If you need this spare part, do not hesitate to contact us.