External combustion hot gas piston engine

摘要

Two or more burners heat separate heater sections, with the hot combustion products passing through rows of heater tubes and then giving up more of their heat to a preheater for the air of a different burner. If three or more burners are used, the burners and preheaters are advantageously arranged in a closed chain. Mutual interaction is thus provided so that variations in the combustion intensity in one burner are rapidly equalized over the whole engine; regulation and control is improved and the gas flow paths are to a large extent short and deflection-free. Distribution of mechanical and thermal loads throughout the engine are equalized, making it possible to operate normally at higher temperatures.