초록 ▼

Thrust reverser actuation mechanisms comprising a pair of nested screwjacks commonly driven by a screwjack drive motor. The inner screwjack translates the blocker doors aft and the outer screwjack deploys the blocker doors into the engine jet stream. The screwjacks have different thread pitches so t

Thrust reverser actuation mechanisms comprising a pair of nested screwjacks commonly driven by a screwjack drive motor. The inner screwjack translates the blocker doors aft and the outer screwjack deploys the blocker doors into the engine jet stream. The screwjacks have different thread pitches so that the blocker doors are translated aft at a faster rate of speed than they are deployed into the engine jet stream.

대표청구항 ▼

A thrust reverser nozzle through which a fluid stream is discharged as a jet, thrust reversal means surrounding said nozzle, a drive means comprising nested inner and outer jackscrews, said inner jackscrew is non-translatable and said outer jackscrew is translatable relative thereto, said inner jack

A thrust reverser nozzle through which a fluid stream is discharged as a jet, thrust reversal means surrounding said nozzle, a drive means comprising nested inner and outer jackscrews, said inner jackscrew is non-translatable and said outer jackscrew is translatable relative thereto, said inner jackscrew is rotated by a jackscrew drive motor and said outer jackscrew is inter-connected to said inner jackscrew for rotation therewith by a slidable mechanical connection therebetween, whereby said thrust reversal means moves rearwardly as a unit at a first speed of translation while moving said thrust reversal means into a position to reverse the flow of gas as it leaves the nozzle at a second speed of translation which is slower than said first speed of translation.