FIELD: transport.
SUBSTANCE: invention is presented in two versions. In both versions, power flows from engine 37 via clutch 36 to input shaft. Power is distributed from input shaft 1 into flows through differential mechanism 7 whereat power flow is divided for the first time, and via differential mechanism 9, 10 whereat power flow is divided for the second time making differential unit 11 and, via power machines 5, 8, electric or displacement, to make variator together with differential mechanism 6. Planetary transmission 18 allows matching rpm output by differential unit 8 without interrupting power flow. Note here that one power train of four in matching is straight. In compliance with first version, transmission allows producing variation range about 17 at efficiency lower than 0.95. In compliance with second version said range tends to infinity.
EFFECT: higher efficiency, lower weight and costs.
18 cl, 7 dwg
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