PLANETARY HYDROMECHANICAL VARIABLE-SPEED DRIVE Russian patent published in 1998 - IPC

FIELD: mechanical engineering. SUBSTANCE: planetary hydromechanical variable-speed drive includes drive and driven shafts, hydrotransformer and two planetary trains. Epicyclic gear of first planetary row is connected with driven shaft. Carrier of this row provided with double-wheel satellite is connected with drive shaft. Sun gear of this row is connected with pump impeller of hydrotransformer. Sun gears of both planetary rows are connected by means of intermediate shaft. Epicyclic gear of second planetary row is connected with turbine wheel of hydrotransformer. Carrier of this row with twin satellites is connected with driven shaft. Reactor of hydrotransformer is also connected with driven shaft. EFFECT: enhanced reliability. 1 dwg