In these cycles and engines the working fluid is always a gas (i.e., there is no phase change):
*Carnot cycle (Carnot heat engine)
*Ericsson cycle (Caloric Ship John Ericsson)
*Stirling cycle (Stirling engine, thermoacoustic devices)
*Internal combustion engine (ICE):
**Otto cycle (e.g. gasoline/petrol engine)
**Diesel cycle (e.g. Diesel engine)
**Atkinson cycle (Atkinson engine)
**Brayton cycle or Joule cycle originally Ericsson cycle (gas turbine)
**Lenoir cycle (e.g., pulse jet engine)
**Miller cycle (Miller engine)