Calculation-Analytical Estimation of the Working Cycle Parameters of the Crankless and Crank Engines Under Similar Loading Conditions

The article contains a comparative estimate of the indicators characterizing the working cycle and indicated parameters of each of the engines (in particular, by the indicated value of the tangential and circumferential forces, torque, and indicated power) as applied to similar conditions of use (identifying the cycle conditions, fuel type, identifying the indicated work of the cycle, value of the compression ratio, air excess ration, etc.) in two-stroke internal combustion engines based on the crank mechanism and two-stroke axial engines with identical structural parameters (in particular, cylinder diameter, piston stroke). It is concluded that, for similar conditions of use, the indicator torques formed during the work cycle of these machines are not equal in magnitude. The indicator torque of the CLM engine with a two-period running track of the motion conversion mechanism exceeds the corresponding torque of the internal combustion engine with a crank mechanism by a factor of two. This conclusion also extends to the indicator powers of the thermal machines under consideration.