calculating dispalcement of an cycle 4 internal combustion engine

Engine Cylinder Overbore Volume: Compute the Volume (displacement) of an Engine with an Overbore based on the stroke, bore, overbore and number of cylinders.

Engine Cylinder Volume: Compute the Volume (displacement) of a Engine Cylinder based on the bore and stroke.

Total Engine Displacement: Compute the Total Volume (displacement) of a Combustion Engine based on the bore, stroke and number of cylinders.

Piston Position: Computes the Piston Position based on the crank angle, crank radius, and rod length.

Stroke (length): Compute the Stroke Length based on the total engine displacement, number of cylinders and the bore.

Rod Length Stroke Ratio: Compute the Rod and Stroke Length Ratio base on the two lengths.

Displacement Ratio: Compute the Displacement Ratio based on the volumes at the beginning and end of the stroke.

Compression Ratio: Compute the Combustion Ratio base on the minimum and maximum displacements of the cylinder at the beginning (1-Induction) and compressed (3-Power) portions of the combustion cycle.

Bore Stroke Ratio: Compute the Bore Stroke Ratio based on the diameter of the bore and the length of the stroke.

Bore (diameter): Compute the Bore Diameter based on the engine displacement, number of cylinders and the stroke length.

This page also include general information on combustion engines. The Engine calculator provides useful formulas and equations used in performance engine tuning including the calculation of key ratios and volumes. Operation without variable displacement is wasteful because fuel is continuously pumped into each cylinder and combusted even though maximum performance is not required.The Engine calculator provides formulas for engine mechanics and performance tuning.These include measurements for total displacement (volume) of cylinders and components, bore, rod length, stroke, and ratios commonly used in performance tuning.

The use of cylinder deactivation at light load means there are fewer cylinders drawing air from the intake manifold, which works to increase its air pressure. Low cylinder pressure means low fuel efficiency. Some large capacity engines need to be throttled so much at light load that the cylinder pressure at top dead centre is approximately half that of a small 4-cylinder engine. This causes an inefficiency known as pumping loss. In these conditions the throttle valve is nearly closed and the engine needs to work to draw air.

In typical light-load driving the driver uses only around 30 percent of an engine's maximum power. Cylinder deactivation is used to reduce the fuel consumption and emissions of an internal combustion engine during light-load operation. Controlling engines by cutting out individual cylinders Rendering engines inoperative or idling.

Calculating dispalcement of an cycle 4 internal combustion engine