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crankshaft
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internal-combustion engine: four-stroke cycle gasoline engine lubrication system Diagram of a gasoline engine showing a cross-section of a piston and cylinder. Key parts such as the spark plug, valves, camshaft, piston, connecting rod, and crankshaft are labeled. Labeled cross-sectional diagram of a V-type gasoline engine for an automobile, showing internal components such as pistons, crankshaft, camshaft, intake and exhaust valves, connecting rods, spark plugs, and intake manifold.
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crankshaft

machine component
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internal-combustion engine: four-stroke cycle
internal-combustion engine: four-stroke cycle An internal-combustion engine goes through four strokes: intake, compression, combustion (power), and exhaust. As the piston moves during each stroke, it turns the crankshaft.

A crankshaft is a mechanical component that converts straight-line motion into rotary motion, or vice versa. It is a crucial part of mechanisms like reciprocating piston engines and pumps. The crankshaft itself consists of a series of cranks and crankpins to which an engine's connecting rods are attached. A crank is an arm secured at a right angle to a shaft, enabling the conversion of linear to rotary motion when paired with a connecting rod. In an engine, the crankshaft's rotation is essential for the operation of other components, such as the camshaft, which is driven by the crankshaft via a chain or gears.1234

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4 Britannica Sources
  1. slider-crank mechanism
  2. crankshaft
  3. crank
  4. gasoline engine - Camshaft

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