• synonyms

Otto cycle

See more synonyms for Otto cycle on Thesaurus.com
noun Thermodynamics.
  1. an idealization of the thermodynamic cycle of the internal combustion engine with air as the working substance: intake of air at atmospheric pressure, then adiabatic compression, then ignition with an increase of pressure and temperature at constant volume, then adiabatic expansion and performance of work, then a drop to atmospheric pressure at constant volume and a rejection of heat to the environment, then the exhaust of air at constant pressure.
Show More

Origin of Otto cycle

1885–90; named after Nikolaus August Otto, 1832–91, German engineer and inventor
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for otto cycle

Historical Examples

  • Practically all motor-cycle engines work on the "Otto-cycle" principle.

    The Romance of Modern Mechanism

    Archibald Williams

  • In the ordinary "Otto-cycle" motor an explosion occurs once in every two revolutions of the crank.

British Dictionary definitions for otto cycle

Otto cycle

  1. an engine cycle used on four-stroke petrol engines (Otto engines) in which, ideally, combustion and rejection of heat both take place at constant volumeCompare diesel cycle
Show More

Word Origin

C19: named after Nikolaus August Otto (1832–91), German engineer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012