US 12,404,811 B1
Aircraft powerplant gearbox with selectable power coupler
Thomas E. Clark, Wells, ME (US); and Murat Yazici, Glastonbury, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Dec. 11, 2024, as Appl. No. 18/977,606.
Int. Cl. F02C 7/32 (2006.01); F02C 3/107 (2006.01); F02C 7/36 (2006.01)
CPC F02C 7/32 (2013.01) [F02C 3/107 (2013.01); F02C 7/36 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An assembly for an aircraft powerplant, comprising:
a gearbox including a first power transfer apparatus and a second power transfer apparatus independent of the first power transfer apparatus; and
a power coupler mounted to an exterior of the gearbox and comprising a clutch;
the first power transfer apparatus configured to operatively couple and transfer mechanical power through the gearbox between a first engine apparatus and an engine accessory;
the power coupler configured to operatively couple a power coupled accessory to the second power transfer apparatus when the clutch is engaged, and the second power transfer apparatus and the power coupler collectively configured to operatively couple and transfer mechanical power through the gearbox between a second engine apparatus and the power coupled accessory when the clutch is engaged; and
the power coupler configured to operatively decouple the second power transfer apparatus from the power coupled accessory when the clutch is disengaged.