F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/111, 244/47
F16H 37/06 (2006.01) B64D 7/00 (2006.01) B64D 35/08 (2006.01) F16H 57/02 (2006.01)
Patent
CA 1325346
MULTIPLE ENGINE DRIVE FOR SINGLE OUTPUT SHAFT AND COMBINING GEARBOX THEREFOR ABSTRACT OF THE DISCLOSURE A dual engine drive system for a single propeller shaft includes a single torque-combining gearbox separated from the engines by gearbox input shafts. The engines, gearbox and propeller shaft are mounted as a unit on a common support frame adapted for installation in existing fixed-wing, single-engine aircraft. Each input shaft drives its own primary gear train within the gearbox. Each gear train includes its own output gear coupled to the propeller shaft through an overrunning clutch. An auxiliary drive train driven by the propeller shaft drives redundant propeller governors, an overspeed governor, and an oil pump for lubricating the propeller shaft and auxiliary gear train. The primary gear trains also drive oil pumps for lubricating their own gearbox sections. The three oil pumps are in separate subcircuits of a common oil circuit, and a mechanism is provided for enabling an operating oil pump of one subcircuit to supply oil to another subcircuit if the oil pump in such other circuit fails.
594038
Oyen Wiggs Green & Mutala Llp
Soloy Llc
LandOfFree
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