| 摘要 |
A hydromechanical transmission includes a differential mechanism (4) having first, second and third input-output ends (1,2,3) and forming either a first mechanical transfer line for high speeds or a second mechanical transfer line for low speeds, a hydraulic power transmission mechanism (8) having two pump-motors (5,7) connected to the second and third input-output ends, a mode selector mechanism (9) for selecting a high or low speed mode to connect the input shaft (13) with the output shaft (19), and a locking mechanism (11) for locking the input-output shaft of the pump-motor operating at a low speed in a given range of higher speeds in the high speed mode.
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