| 摘要 |
A mechanical-electronic shut-off system detects a shaft failure and initiates the shut-off of the fuel supply. It features, on the free end of a reference shaft ( 2 ) connected the to energy-consuming end of the respective shaft ( 1 ), an axially moveable signal trip element ( 13, 14 ) held under pre-load ( 12 ) whose locking arrangement ( 17,18 ) is released via a radial driver arrangement ( 17, 19 ) by rotary movement in the event of a shaft failure. The resultant relative rotation of the shaft ( 1 ) enables the signal trip element to move towards a sensor ( 21 ) or a switching element. An electric signal so produced instantly interrupts the further supply of fuel by means of an electronic control and avoids or controls a dangerous overspeed condition of the failed shaft.
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