| 摘要 |
With a two-shaft engine, the accessory drive gearbox ( 5 ) for the operation of a generator and other auxiliaries ( 6 ) is connected to the high-pressure shaft ( 1 ) via a high-pressure shaft gearbox ( 3 ), which is coupled to a low-pressure shaft gearbox ( 8 ) connecting to the low-pressure shaft ( 7 ), via an overrunning clutch ( 11 ), a conical-pulley variable transmission ( 10 ) settable on the basis of the shaft speed on both sides, and a first switchable clutch ( 9 ). Under certain operating conditions with low speed of the high-pressure shaft or in case of engine failure, the power of the low-pressure shaft, with the clutch ( 9 ) engaged, is transferred to the high-pressure shaft gearbox and hence to the accessory drive gearbox via the conical-pulley variable transmission, which compensates for shaft speed difference, and the overrunning clutch, in order to reliably further operate the generator and other accessories with low fuel consumption or by windmilling only.
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