Engine displacement is a crucial measurement in automotive engineering, representing the total volume of all the engine's cylinders. It's a key factor in determining an engine's power output and efficiency.
The formula for calculating engine displacement is:
\[ \text{Displacement} = \frac{\pi}{4} \times \text{Bore}^2 \times \text{Stroke} \times \text{Number of Cylinders} \]
Where:
Let's calculate the displacement for an engine with the following specifications:
Step 1: Apply the formula
Displacement = (π / 4) × 4² × 3.5 × 8
Step 2: Calculate
Displacement = 0.7854 × 16 × 3.5 × 8
Displacement = 351.86 cubic inches
Step 3: Convert to other units (optional)
351.86 cubic inches = 5,766 cc = 5.77 liters
The following diagram illustrates the key components in engine displacement calculation:
This diagram shows a simplified view of an engine cylinder. The bore is the diameter of the cylinder, while the stroke is the distance the piston travels within the cylinder. The engine displacement is calculated using these measurements along with the number of cylinders.