PROCEDURE DETERMINING RESISTING FORCES OF OPERATIONAL MACHINES Russian patent published in 2002 - IPC

FIELD: agricultural mechanical engineering. SUBSTANCE: speed of rotation of crankshaft corresponding to maximum torque is achieved at operational movement of tractor thanks to reduced supply of fuel. Then supply of fuel is raised momentarily. Angular acceleration of crankshaft is measured with achievement of rated speed of rotation of crankshaft of engine during acceleration of tractor. Acceleration of crankshaft with acceleration of tractor without working machinery is measured in similar way and resisting force of working machinery is found by formulas obtained from equations of movement of tractor and working machinery. EFFECT: simplified measurement procedure, reduced labor input into it. 1 cl