What parts does a piston consist of?

A piston is an essential component of an internal combustion engine. It typically consists of the following parts:

1. Crown or Head: The top surface of the piston, also known as the crown or head, is the part that comes into direct contact with the expanding gases produced during combustion.

2. Skirt: The long, cylindrical part of the piston that extends down from the crown is called the skirt. It provides stability and guidance for the piston within the cylinder.

3. Ring Grooves: Piston grooves are machined into the piston's outer surface to accommodate piston rings. These grooves hold the piston rings in place and help seal the combustion chamber.

4. Piston Rings: Piston rings are thin circular bands that fit into the ring grooves on the piston. They help seal the combustion chamber, prevent the leakage of gases, and control oil consumption.

5. Wrist Pin Hole: The wrist pin hole, also known as the piston pin bore, is located near the crown end of the piston. It holds the wrist pin (piston pin) in place, which connects the piston to the connecting rod.
 

6. Wrist Pin (Piston Pin): The wrist pin, or piston pin, is a cylindrical pin that connects the piston to the connecting rod. It allows the piston to pivot and move up and down within the cylinder bore.

7. Skirt Coating: Some pistons may have a coating on the skirt to reduce friction and wear, improve efficiency, and enhance durability.

These are the main parts that make up a piston, each playing a crucial role in the proper functioning of the internal combustion engine.

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