Editing Atkinson cycle (section)

==Atkinson "Cycle Engine"==
The next engine designed by Atkinson in 1887 was named the "Cycle Engine" This engine used poppet valves, a cam, and an over-center arm to produce four piston strokes for every revolution of the crankshaft. The intake and compression strokes were significantly shorter than the expansion and exhaust strokes. 

The "Cycle" engines were produced and sold for several years by the British Engine Company. Atkinson also licensed production to other manufacturers. Sizes ranged from a few up to 100 horsepower.

{{gallery
|File:Atkinson-Gas-Engine.png|Atkinson gas engine as shown in US Patent 367496, 1887
|File:Atkinson Engine with Intake.gif|Animation of the Atkinson "Cycle Engine", 1887
}}