Four-stroke engine - Wikipedia
A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the …
Four-stroke cycle | Definition, History, & Facts | Britannica
Nov 19, 2025 · Four-stroke cycle, principle by which most modern automobile engines function. As illustrated by the figure, while the inlet valve is open, the piston first descends on the intake stroke. …
Four-Stroke Engines: Everything You Need to Know - Pilot ...
Aug 14, 2025 · Learn all about how four-stroke engines work, their main components, and why they matter in modern vehicles.
4-Stroke Engines: What Are They and How Do They Work? | UTI
Apr 13, 2023 · What are 4-stroke engines and how do they differ from 2-stroke? Get an inside look at 4-stroke engines, how to maintain them and how to work on them!
What is a 4-Stroke Engine? | How does a Four-Stroke Engine work?
A 4-stroke engine is an IC engine that uses four strokes of the piston to complete a working cycle. It converts the thermal energy of the fuel into useful mechanical work due to the upward and downward …
Four Stroke Engine : What is It and What Does it Do?
The four-stroke piston engine is used in all cars and light trucks, and it doesn't matter if they burn gasoline or diesel. So what does four stroke mean? The crankshaft must go around twice, and each …
Four stroke engine - Energy Education
The four-stroke engine is the most common types of internal combustion engines and is used in various automobiles (that specifically use gasoline as fuel) like cars, trucks, and some motorbikes (many …
Four Stroke Engine: Working, Cycle, Diagram & Key Differences
Four-stroke engine refers to an internal combustion (IC) engine that completes a power cycle using four distinct piston movements: intake, compression, power (combustion), and exhaust. This cycle is …
4 Stroke Engine Parts Explained - saVRee
What is 4 stroke engine, and how does a 4 stroke engine work? Learn about four stroke cycle engine components and parts in an animated video.
Four Stroke Cycle Engines - University of Washington
A four-stroke cycle engine is an internal combustion engine that utilizes four distinct piston strokes (intake, compression, power, and exhaust) to complete one operating cycle.