The third is a bi-fuel external combustion engine
that is based on the mono-fuel compressed air engine, with the air in the reservoir compressed at 200 bars.
Cyclone Power Technologies today announced that the European Patent Office (EPO) has issued a notice to grant the company a patent on its heat regenerative external combustion engine
STM Power also said it that it has successfully completed the testing phase of a project to run an external combustion engine
on paint fumes generated at a Ford plant.
The use of hydrogen in external combustion engines
have the benefit of the well-known engine technology combined with a new type of fuel.
For this reason, steam engines are considered to be external combustion engines
As with other external combustion engines
, Stirling engines can use heat sources other than from combustion of fuels.