Abstract
The stirling engine has advantages in regard to multi-fuel capability and exhaust emissions. Recently with increasing social demands such as energy conservation and environmental protection, this engine may have potential replacement for conventional piston engine in future.
But the stirling engine has many problems that are posed by aerodynamics flow losses, heat transfer of working gas between expansion space and compression space, seal of working gas and frictional losses. Many results were not presented so much yet.
So, we have manufactured for trial a single acting small stirling engine with pressurized crank case to evaluate the performance, with He gas or N2 gas as working gas. A series of characteristic test was done and influence of each factor on engine performance became clear.
