EXTERNAL HEATING ENGINE Russian patent published in 2008 - IPC F02G1/43 F02G1/53 

FIELD: engines and pumps.

SUBSTANCE: invention relates to engines running by expanding and compressing the working gas heated in one or several continuously communicating chambers, for example, of the Stirling engines. The external heating engine incorporates the hot group crankshaft and the cold group crankshaft, a group of packages of hot cylinders with pistons and the mating group of con rods, a transmission, a fuel pump, a combustion chamber, a compressor feeding the air into the combustion chamber and a heat exchanger. The engine contains also a group of pipes connecting, by pairs, the packages of the hot and cold cylinders and incorporating a heat recovery unit. The cylinders represent parallelepipeds with their thickness d selected from the ration , where: C=2.185·10^-5 is a constant, λ is the heat conductivity factor of working gas (air), ω is the maximum angular speed of rotation of the crankshaft at which isothermal processes of working gas expansion-compression keep running in the cylinders, C_p is the specific working gas heat at a constant pressure, ρ is the working gas density. The cylinder width is selected to make their thickness exceeded by not over four times.

EFFECT: higher efficiency.

9 cl, 2 dwg