Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 30, 2019
We are designing and manufacturing a new α+-type engine that is considered about higher buffer pressure. Note that the α+-type mechanism is suitable for low-temperature-difference Stirling engines and the α+-type engine has a displacer consisting of two pistons that are connected via rods. Therefore, it is possible to use a regenerator with a sufficiently large area within a small range of temperature difference and to suppress the load applied to the crankshaft. We also develop a new design method suitable for low temperature difference engine. The α+-type engine is most effectively applied to power generation using a combustion heat from a wood biomass because the engine can be driven by indirect heating using 300 deg C thermal oil. We report the design of prototype new 10 kW class engine that reduces volume of 1/2.
