Saturday, August 25, 2012

What is Cubic Centimeter (cc) for Engine

Engine displacement is the volume swept by all the pistons inside the cylinders of an internal combustion engine in a single movement from top dead center (TDC) to bottom dead centre (BDC). It is commonly specified in cubic centimeters (cc), (l), or (mainly in North America) cubic inches (CID). Engine displacement does not include the total volume of the combustion chamber.

Engine displacement is determined from the bore and stroke of an engine's cylinders. The bore is the diameter of the circular chambers cut into the cylinder block.
 \mbox{displacement} = {\pi\over 4} \times \mbox{bore}^2 \times \mbox{stroke} \times \mbox{number of cylinders}
To simplify:
 \mbox{displacement} = \mbox{bore}^2 \times 0.7854 \times \mbox{stroke} \times \mbox{number of cylinders}
 Try calculate this and you will get same answer.

Bore: 81 mm and Stroke: 87.3 mm

P/s: Don't forget to convert unit mm to cm.

Answer: 1798 cc