METHOD OF INCREASE EFFICIENCY OF OPERATION OF INTERNAL COMBUSTION ENGINE Russian patent published in 2006 - IPC F02B75/06 F02D35/00 

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: according to proposed method, value of pressure of fuel combustion products onto piston and changing of said pressure onto piston depending on angle of turning of crankshaft journal around its of rotation with account of measured values of pressure and determined values of inertia forces of reciprocating moving masses of piston and engine crank gear in direction along axis of cylinder of internal combustion engine are measured and indicator diagram is plotted after which, for each half-turn of crankshaft, mean summary tangential force acting onto crank, depending on torque on crankshaft, it determined. Then mean summary forces along axis of piston and crank gear, depending on angle of turning of crankshaft, are found. All journals of crankshaft rotate in one direction at constant angular velocity owing to flywheel fitted on crankshaft. Size of flywheel is chosen to provide summary torque of resistance to rotation of crankshaft equal to summary acceleration torque of crankshaft under action of summary inertia force found as difference between mean summary force for mean tangential force and summary pressure force of fuel mixture combustion products, depending on crankshaft turning angle.

EFFECT: increased efficiency and service life of engine by improving efficiency of operation.