US 12,270,440 B1
Accessory gearbox engine decoupling mechanism
Todd T. Harder, West Chester, PA (US); Yiyi Zhang, Wallingford, PA (US); and Mark Joseph Robuck, Chadds Ford, PA (US)
Assigned to The Boeing Company, Arlington, VA (US)
Filed by The Boeing Company, Arlington, VA (US)
Filed on Jan. 18, 2024, as Appl. No. 18/416,754.
Int. Cl. F16D 11/10 (2006.01); B64D 41/00 (2006.01); F16D 48/00 (2006.01); F16H 25/20 (2006.01); F16D 11/00 (2006.01)
CPC F16D 11/10 (2013.01) [B64D 41/00 (2013.01); F16D 48/00 (2013.01); F16H 25/20 (2013.01); F16D 2011/004 (2013.01); F16H 2025/209 (2013.01)] 20 Claims
OG exemplary drawing
 
10. A system for decoupling an accessory gearbox of an engine, comprising:
a worm gear mechanism;
a threaded rod engaged with the worm gear mechanism;
a decoupling adapter connected to the threaded rod, the decoupling adapter movable between a first position and a second position;
a power take-off gear permanently engaged with the decoupling adapter, the power take-off gear mechanically connected to an accessory system and an external power source; and
a power take-off adapter mechanically connected to the decoupling adapter in the first position, wherein movement of the decoupling adapter between the first and second positions allows for the accessory system to be powered by the external power source without use of the engine.