Integral gear box and electrical generating system

Details Integral gear box and electrical generating system Integral gear box and electrical generating system

1985-12-27

1987-12-22

Herrmann, Allan D.

Machine element or mechanism

Elements

Gear casings

60 3983, 60 39142, 60491, 74687, 74731, F16H 3708, F16H 4704, F02C 7275

Patent

active

047139820

ABSTRACT:
Reductions in weight, frontal area and overhang moment in an aircraft engine gear box and electrical generating system are achieved in a construction including a gear box housing 20 provided with an input shaft 16 connectable to a power take-off 12. A differential 76 is disposed within the housing 20 and includes a carrier shaft 72 mounting meshed planet gears 82, 84. The differential includes a control ring gear 88 to mesh with the planet gear 84 and an output ring gear 92 meshed with the planet gear 82. The carrier shaft 72 is coupled to the input shaft 16. A hydraulic speed trimmer 54 is mounted on the exterior of the housing 20 and includes two pump/motor units 124, 128, each having a shaft 108, 110, extending into the housing 20 to be respectively connected to the carrier shaft 72 and the control ring gear 88. A generator 102 is mounted on the gear box housing 20 and includes a shaft 100 extending into the interior 22 of the housing 20 to be coupled to the output ring gear 92.

REFERENCES:
patent: 3733924 (1973-05-01), Zentz
patent: 4315442 (1982-02-01), Cordner
patent: 4498525 (1985-02-01), Smith
patent: 4557160 (1985-12-01), Reynolds
patent: 4605358 (1986-08-01), Burnandt
patent: 4609842 (1986-09-01), Aleem et al.

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