| 摘要 |
A hydrostatic coupling comprises a housing (10) adapted for rotation about a central axis (14). The interior of the housing (10) includes a reservoir (22) for retaining hydraulic fluid, an enclosure (32) retaining a planetary gear pump (26, 36) and ports (38, 40) connecting the reservoir (22) to the pump enclosure (32). A valve assembly (42) is adapted to restrict the flow through output port (40). Torque transmission between sun gear (36) and housing (10) is a function of the flow restriction generated by valve assembly (42).
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