FIELD: transport engineering; road vehicles and earth-moving and transportation machinery. SUBSTANCE: proposed hydromechanical brake drive contains pedal, mechanical booster in form of lever, hydraulic booster and hydraulic lines, shoe and wheel, movable actuating hydraulic cylinder connected with lever and hydraulic booster. Hydraulic booster is made in form of two hydraulic cylinders, one of which is output link of hydraulic booster and provides pressing of housing of movable actuating hydraulic cylinder. Additional effort on shoe is provided owing to difference in diameter of pistons of movable actuating hydraulic cylinder and hydraulic cylinder being output link of hydraulic booster. EFFECT: improved efficiency, reduced energy consumption in process of braking. 1 dwg
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