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

FIELD: engines and pumps.

SUBSTANCE: invention relates to power plants and volume expansion engines, particularly to those running by expanding and compressing a working volume of gas heated and cooled in one or several continuously communicating chambers, e.g. operating on the Stirling engine principle. The external heating engine incorporates a hot set and cold set crankshafts, a set of hot cylinders with pistons and a hot con-rod set coupled, on one side, with hot pistons and, on the other side, with the hot set crankshaft, a set of cold cylinders with pistons and a cold con-rod set coupled, on one side, with cold pistons and, on the other side, with the cold set crankshaft. The engine also comprises a set of pipes connecting in pairs the hot and cold cylinders and incorporating a heat regeneration unit, a power train, a combustion chamber, a compressor, a heat exchanger and a fuel pump. The dimensions of the hot cylinders set and cold cylinders set PX are selected from the ration d>0, where d is the cylinder diameter, C=2.185-10^-5 is a constant, λ is the operating gas (air) heat conductivity, ω is the maximum crankshaft phase rate at which isothermal operating gas expansion-compression do not vary, C_p is the operating gas (air) specific heat at constant pressure, ρ is the operating gas density.

EFFECT: higher efficiency.

8 cl, 2 dwg