Abstract
Keywords: engine, Diesel, hydrostatic, transmision.
The Diesel engines operating characteristics being less adjustable, is necessary a hydraulic coupling transformer that puts in concord the relative rigid momentum of the engine with the great variations of the useful momentum. The authors offer a graphic-analytical research for the motor vehicle hydrostatic transmission agreement with the driving engine characteristics. The method used of the authors offers a good agreement of the calculus results with the known experimental data. Their precision is priority determined by plotting the dependence of the engine, hydraulic coupling transformer and motor vehicle efficiency on the constructive characteristics.