Description

Cylinder Block

A cylinder block, also known as an engine block, is the main structure of an internal combustion engine. It houses essential components like the cylinders, coolant passages, and oil galleries, forming the foundation of the engine.

Functions of a Cylinder Block

1. Houses the Cylinders – The block contains cylindrical holes where pistons move up and down.
2. Supports Other Engine Components – Provides a mounting base for the cylinder head, crankshaft, and other engine parts.
3. Facilitates Cooling and Lubrication – Contains coolant passages and oil galleries to regulate temperature and reduce friction.
4. Ensures Structural Integrity – Designed to withstand high pressure and temperature during engine operation.

Materials Used

• Cast Iron – Durable and provides excellent heat resistance but is heavy.
• Aluminum Alloy – Lighter than cast iron, improves fuel efficiency, and enhances heat dissipation.

Types of Cylinder Blocks

1. Inline Cylinder Block – Cylinders are arranged in a straight line (e.g., Inline-4, Inline-6).
2. V-Type Cylinder Block – Cylinders are placed in a V-shape (e.g., V6, V8, V12).
3. Flat (Boxer) Cylinder Block – Cylinders are placed horizontally opposite