James Atkinson (inventor)

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Atkinson Gas Engine as shown in US Patent 367496

James Atkinson (1846–1914)[1] of Hampstead was a British engineer who invented several engines that produced an increased efficiency over the Otto cycle The Atkinson cycle engines were name the "Differential 1882" "Cycle 1887" and "Utilite 1892". The most well known of Atkinson's engines is the "Cycle" which was patented in 1887.[2] By use of variable engine strokes from a complex crankshaft, Atkinson was able to increase the efficiency of his engine, at the cost of some power, over traditional Otto-cycle engines. He was awarded the John Scott Medal of The Franklin Institute in 1889.


  1. ^ C. Lyle Cummins (2000). Internal Fire: The Internal-Combustion Engine 1673-1900. Wilsonville, Ore: Carnot Press. p. 218. ISBN 0-917308-05-0. 
  2. ^ US patent 367496, James Atkinson, "Gas-Engine", issued 1887-08-02 

Further reading[edit]

"Memoirs - James Atkinson". Proceedings of the Institution of Mechanical Engineers: 347. May 1914. 

See also[edit]