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== | ==Cylinder Arrangements== | ||
* [[Straight-two]]: has its cylinders arranged in a single row. It is often improperly referred to as a "straight twin". A true straight twin (or parallel twin) engine uses a common crank pin for both cylinders (small displacement [[Honda]], [[Triumph]]). | * [[Straight-two]]: has its cylinders arranged in a single row. It is often improperly referred to as a "straight twin". A true straight twin (or parallel twin) engine uses a common crank pin for both cylinders (small displacement [[Honda]], [[Triumph]]). | ||
* [[Straight-three]]: has its cylinders arranged in a single row. | * [[Straight-three]]: has its cylinders arranged in a single row. | ||
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* [[Boxer twin]]: two cylinders arranged on opposite sides of the crankshaft ([[BMW]]). | * [[Boxer twin]]: two cylinders arranged on opposite sides of the crankshaft ([[BMW]]). | ||
* [[Radial]]: Cylinders are arranged in a radial fashion around the crankshaft (Wankel). | * [[Radial]]: Cylinders are arranged in a radial fashion around the crankshaft (Wankel). | ||
==Valve Operation== | |||
*[[Pushrod engine]] |