| 摘要 |
A planetary gear, e.g. for use as a propeller drive in aircraft, comprises a sun wheel (15), a planet carrier (12) having at least one planet wheel (14), and an outer housing (18) which is in engagement through a hollow wheel (19) with the planet wheel (14). The planet carrier (12) is stationary while the outer housing (18) is arranged to rotate. A lubricant pump (5) is provided in the planetary gearing and lubricant passages (17) are provided in the planet carrier (12), the aircraft propeller being secured directly to the external housing (18). The lubricant pump (5), which is formed for double-flow delivery, sucks in the lubricant from a separately-arranged tank and forces it to the user points and, in a second delivery stream, sucks the lubricant out of the planetary gearing and delivers it through a separate coller back into the tank. Ordinary commercial engine oil or gear oil is used as the coolant. <IMAGE>
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