4 CYCLE ENGINE OPERATION

How a 4-Cycle Engine Works | Briggs & Stratton
How a 4-Cycle Engine Works The Briggs & Stratton 4-cycle engine powers an array of outdoor power equipment, including lawn mowers, generators, lawn tractors and tillers. Our 4-cycle engines lead the world in production and quality.
Four-stroke engine - Wikipedia
OverviewHistoryThermodynamic analysisFuel considerationsDesign and engineering principlesA four-stroke engine is an internal combustion engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction. The four separate strokes are termed: Intake: Also known as induction or suction. This stroke of the piston begins at top dead center and ends at bottom dead center. In this stroke the intake valve must be in the open position while the piston pulls an air-fuel mixture intoSee more on enpedia · Text under CC-BY-SA license