Aeronautics and astronautics – Aircraft power plants – Auxiliary
Patent
1985-06-10
1988-05-10
Peters, Jr., Joseph F.
Aeronautics and astronautics
Aircraft power plants
Auxiliary
B64D 4100
Patent
active
047429763
ABSTRACT:
A ram air turbine and deployment mechanism has commonly had power-generating means in the form of either one, or both, of a hydraulic pump and electrical generator mounted at the end of a pivotal strut adjacent the ram air turbine. Relocation of the power-generating means can provide a system with improved operation, lesser weight and other improvements over prior known systems.
The ram air turbine is mounted at the end of a pivotal strut for movement between stowed and deployed positions. The electrical generator forms a major part of the strut and is located close to the pivot axis of the strut. The hydraulic pump is mounted to aircraft structure within the stowing compartment of the aircraft and has a driven member aligned with the pivot axis of the pivotal strut. The drive of the generator and the pump is derived from rotation of the rotatable hub assembly of the ram air turbine which drives rotatable shaft means within the strut by a first angled spiral gear drive between the ram air turbine and the generator and a second angled spiral gear drive between the rotatable shaft means within the strut and the driven member of the hydraulic pump. The speed relation between the components is determined by sizing of the gears of the angled spiral gear drives wherein the ram air turbine, the generator, and the hydraulic pump can all be operated at optimum speed to maximize the performance of each of the components.
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Cohen application, Ser. No. 685,475, filed Dec. 24, 1984.
Fiorito Lynn M.
Peters Jr. Joseph F.
Sundstrand Corporation
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