| 摘要 |
A reversing gear connecting a gas turbine to a propulsion shaft includes a big-diameter first gear wheel rotatable with the propulsion shaft and two pinions meshing therewith. There are further two intermeshing gears, one aligned with each of the pinions. One of the pinions has a through bore, permitting the passage of the output shaft from the turbine, a two-way clutch between this first pinion and its aligned gear, to connect, at will, last mentioned gear to the output shaft, or said shaft to the first pinion, the other pinion and its aligned gear being permanently interconnected.
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