4.4.5 Engine displacement
Engine capacity. This is the volume of space, which is enclosed between TDC and BDC of the piston, multiplied by the number of cylinders. It is measured in cubic centimeters (cm3 ) or liters (l). And the volume, which is above the piston when it is installed in TDC, is called the volume of the combustion chamber. The sum of the volume of the combustion chamber and the working chamber is called the total volume. Usually, this total volume is not indicated in the characteristics. However, it is used for obtaining such an important parameter as the compression ratio.
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