| 摘要 |
An epicyclic gear system and driving means therefor comprise three planetary gears disposed within a sealed compartment to form two separate volumes; the planetary gears comprise a primary planetary gear and peripheral planetary gears and mesh with one another and with a stationary ring gear in said compartment. A rotor, eccentrically mounted with respect to the ring gear, is attached to the primary planetary gear. A fourth planetary gear is attached also to the rotor and is driven thereby in engagement with a stationary sungear. The fourth planetary gear is fixed to the primary planetary gear which is attached to the rotor and engages in planetary circular and rotary motion under the drive of the rotor and thereby furnishes a positive rotational impetus to the peripheral planetary gears. Ingress and egress ports communicating with the separate volumes defined by the compartment and the first planetary gears may be used for fluid inlets and outlets in conjunction with use of the system as a pump, a motor, an engine, or as a drive for a pump or other machine.
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