Small 4 Stroke Engine Diagram. Four stroke four cycle engines are newer and have a separate compartment for oil so you dont have to worry about mixing fuel. Simple in design and function they can produce a lot of work for pennies in gas.
If you enjoyed the information and article you just read be sure to check out our newly released book with even more exciting photos and information. Intake during the intake stroke the piston moves downward drawing a fresh charge of vaporized fuelair mixture. A two stroke or two cycle engine is a type of internal combustion engine which completes a power cycle with two strokes up and down movements of the piston during only one crankshaft revolution.
A stroke refers to the full travel of the piston along the cylinder in either direction.
How do 4 cycle engines work. This relation between the valve opening timings to the piston moves from the top dead centre tdc to the bottom dead centre bdc can be represented on a circle. This is called the valve timing diagram. Each corresponds to one full stroke of the piston.