The document discusses the piston and piston rings components of a cylinder block. The piston reciprocates inside the cylinder and transmits energy to the crankshaft through the connecting rod. It is made of aluminum alloy 4652 due to its low specific gravity and is manufactured through casting. Piston rings maintain a pressure-tight seal between the piston and cylinder walls and transfer heat from the piston head to the cylinder walls. The rings are fitted into grooves cut into the piston and are split at one end to expand or slip over the piston end.

1. Cylinder Block
M.Suresh

2. Piston

3. Piston
• Piston is used to reciprocate inside the
cylinder.
• It transmits the energy to the crankshaft
through the connecting rod.
• Material: Aluminum Alloy 4652 because of its
Low Specific Gravity.
• Manufacturing Method: Casting

4. Piston Rings

5. • To maintain a pressure-tight seal between the
piston and cylinder walls and also it transfers the
heat from the piston head to cylinder walls.
• These rings are fitted in grooves that have been
cut in the piston.
• They are split at one end so they can expand or
slipped over the end of the piston.