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    • 6. 发明授权
    • Power-branched hydrostatic vehicle transmission
    • 动力分配静电车辆传动
    • US3587238A
    • 1971-06-28
    • US83842869
    • 1969-07-02
    • MOLLY HANS
    • MOLLY HANS
    • B60K17/10F16H39/02F16D31/06
    • B60K17/10F16H39/02
    • THE TRANSMISSION INCLUDES A CASING HAVING A MAIN PORTION AND AN INSERT PORTION RELEASABLY CONNECTED. THE OUTPUT SHAFT IS CARRIED ON SPACED BEARINGS IN THE INSERT. THE OUTPUT DRIVE GEAR IS BETWEEN THE BEARINGS. ON THE OUTPUT SHAFT, OUTBOARD OF ONE BEARING, IS THE HOUSING OF A SICKLE-TYPE GEAR PUMP. WITHIN THE HOUSING IS A RING GEAR HAVING A PINION INSIDE IT. THE PINION IS CONCENTRIC WITH THE OUTPUT SHAFT AND IS CONNECTED TO AN INPUT SHAFT. ON THE OUTPUT SHAFT OUTBOARD OF THE OTHER BEARING IS THE CYLINDER BLOCK OF AN AXIAL PISTON MOTOR WITH THE VALVE MEMBER OF THE MOTOR BETWEEN THE CYLINDER BLOCK AND SAID OTHER BEARING. FLUID PASSAGES EXTEND THROUGH THE OUTPUT SHAFT BETWEEN THE PUMP AND THE MOTOR. THE CYLINDERS OF THE MOTOR HAVE RELIEF PASSAGES UNCOVERED BY THE PISTONS WHEN THE PISTONS REACH THE OUTWARD EXTENT OF THEIR MOVEMENT. THE POSITION OF THE MOTOR SWASH PLATE IS CONMOVEMENT. THE POSITION OF THE MOTOR SWASH PLATE IS CONTROLLED BY A PAIR OF HYDRAULIC SERVOS ON OPPOSITE SIDES OF THE

      AXIS OF THE OUTPUT SHAFT. A PRESSURE OPERATED SLID VALVE TO CONTROL THE SERVOS EXTENDS THROUGH AND BEYOND THE DISTAL END MANUAL ADJUSTMENT. THE SLIDE VALVE COMMUNICATES WITH THE SERVOS THROUGH A DIRECTIONAL CONTROL VALVE.