What are the main function of piston? List out the main parts of piston?
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Piston forms a movable boundary into an engine cylinder. If the piston is too tight, it does not move freely inside the cylinder when the pressure force applied during power stroke and if it is too loose it would leaks the pressure force. For proper functioning of an IC engine, piston should form a intermediate fit which provide a good sealing fit and less friction resistance between piston and cylinder wall. These requirements fulfilled by piston rings.
It consist mainly three rings. The first one is known as compression rings, middle one is known as wiper ring or intermediate ring and the last one is known as oil rings. These rings are mainly made by cast iron of fine grain and sometimes by alloy steel.
Function of Piston Rings:
To provide good sealing between piston and engine cylinder.
To regulate the amount of lubricant into engine cylinder.
To provide proper lubrication.
To transfer heat of piston through engine wall and fins.
To minimize friction between piston and engine wall.
thanks
It consist mainly three rings. The first one is known as compression rings, middle one is known as wiper ring or intermediate ring and the last one is known as oil rings. These rings are mainly made by cast iron of fine grain and sometimes by alloy steel.
Function of Piston Rings:
To provide good sealing between piston and engine cylinder.
To regulate the amount of lubricant into engine cylinder.
To provide proper lubrication.
To transfer heat of piston through engine wall and fins.
To minimize friction between piston and engine wall.
thanks
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