Расчет утечки газов в ДВС при динамической модели функционирования поршневых колец

Abstract

The calculation of gas leaks through the ring seals of the internal combustion engine taking into account the dynamics of the piston rings is proposed. The shortcomings of previous works in this field are noted. A quantitative estimate of the leak age of gases through the ring seal of a high-speed diesel engine, which confirmed the previously known experimental dependence of the leakage of gases on the engine speed of the crankshaft. Formulas for the calculation of gas leaks are given for different cases of mutual arrangement of rings in the grooves of the piston. An example of leakage calculation for a high-speed diesel is given. It is noted that the nature of the change in gas leaks from the rotational speed of the crankshaft can reveal irregularities in the normal operation of the piston rings and outline ways to improve the ring seal. Authentic conclusions are drawn and ways of experimental evaluation of the dynamic stability of the ring seal are indicated.