About Stirling Engine Technology:
The original kinematic Stirling machine, developed over 200 years ago by Rev. Robert Stirling, did not attain significant technical or commercial success until the latter half of the 20th century.
Why Stirling Engines require less maintenance
The principal “Stirling advantage” is that it is a closed-cycle external combustion engine, meaning the heat source is outside the engine. The inside of the Stirling engine can be sealed and designed for very long-term service intervals as the internals are not polluted the way internal combustion engines are. An increased focus on this technology over the last 50 years led to substantial recent breakthroughs in terms of operating concepts and supporting technologies
Stirling engines also make use of a regenerative heat exchanger that allows them to re-use their heat. This regeneration feature is what makes the Stirling cycle efficient, in addition to allowing it at the same time to be powered by virtually a broad range of gas heat values.