HYDRAULIC DRIVE OF VOLUMETRIC ADJUSTMENT Russian patent published in 2009 - IPC F16H47/02 F16H61/42 F15B11/16 

FIELD: transport.

SUBSTANCE: hydraulic drive is intended for control over various device of materials-handling vehicles. Proposed drive consists of control unit, reversing adjustable pump with drive motor, power hydraulic lines, first constant capacity hydro motor 6 and reducer. Second adjustable hydro motor has its hydraulic chambers communicating with power hydraulic lines and its shaft linked up with reducer parallel to the shaft of aforesaid first hydro motor. Power hydraulic lines accommodate pressure pickups connected, via pressure limiter unit, with adjustably hydro motor. Aforesaid unit comprises comparing amplifier of pickup differential pressure signals and those of preset pressure difference and allows regulating operating volume of hydro motor, if pressure difference signal exceeds preset magnitude.

EFFECT: expanded performances.

2 cl, 1 dwg