The Yield of the Thermal Engines

This paper presents an algorithm for determining the dynamic parameters of the main classic mechanism of internal combustion engines. It shows the distribution of forces (on the main engine mechanism) to internal combustion engines. With these forces and together with the kinematic coupling speeds, the efficiency of the thermal engine is determined. The method applies separately for two distinct situations: When the engine is working as a compressor and as a motor mechanism. For the two separate cases, two independent formulas for engine efficiency are obtained. These relationships are then calculated in terms of Otto's mechanical efficiency in four-stroke, two-stroke and four-stroke. The final power of the engine is obtained taking into account the thermal efficiency of the Carnot cycle.