| 摘要 |
A hydrostatic clutch of the type in which an input shaft has a casing in which a positive displacement gear pump is received and an output shaft is connected to the gear pump. According to the invention the gear pump includes a gear pump body provided with intake and pressure passages, the body being limitedly rotatable in the casing so that upon reversal of the rotation of the input shaft, the passages of the body will switch over as to communication with openings of the casing and thereby reverse the pump.
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