| 摘要 |
A hydro-mechanical transmission (10) having fluid motor (48/248) that is entirely rotatable to eliminate the need for separate gearing is disclosed. The gearless hydro-mechanical transmission (10) provides a variable speed and torque output from an external mechanical power source (14) and an external hydraulic power source (20). The hydro-mechanical transmission (10) comprises a stationary case (42/242), an output shaft (44/244) mounted within the case for rotation about a central axis (52), a mechanical input (46/246) mounted in coaxial alignment with the output shaft (44/244) for rotation about the central axis (52) with the input (46/246) being connected to and rotatable driven by the mechanical power source (14), a rotatable hydraulic motor (48/248) having a drive unit (60/260) for rotatably driving a driven unit (62/262) with the driven unit (62/262) being coupled to drive the output shaft (44/244), and means (100) for conducting pressurized hydraulic fluid from the hydraulic power source (20) to the hydraulic motor (48/248) for driving the driven unit (62/262) of the hydraulic motor (48/248) by the drive unit (60/260).
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