Gearbox arrangement for driving coaxial contra rotating multi-bl

Details Gearbox arrangement for driving coaxial contra rotating multi-bl Gearbox arrangement for driving coaxial contra rotating multi-bl

1989-11-02

1990-10-23

Bonck, Rodney H.

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural outputs

475311, 475330, 475332, F16H 3706

Patent

active

049648446

ABSTRACT:
The invention relates to a gearbox arrangement for driving a first multi-bladed rotor and a second coaxial multi-bladed rotor in opposite directions.
The gearbox assembly comprises a first epicyclic gear arrangement and a coaxial second epicyclic gear arrangement. The first epicyclic gear arrangement is driven by a first input shaft, and the second epicyclic gear has a static second input shaft. The first epicyclic gear arrangement is drivingly connected to the first multi-bladed rotor and the second epicyclic gear arrangement is drivingly connected to the second multi-bladed rotor. The first epicyclic gear arrangement is interconnected to the second epicyclic gear arrangement so that the first and second multi-bladed rotors are driven in opposite directions. It is preferred that the first and second epicyclic gear arrangements are dimensioned and configured to drive the first and second multi-bladed rotors with equal and opposite torques, so that the static carrying structure can be of reduced strength and weight.

REFERENCES:
patent: 2186064 (1940-01-01), Dekker
patent: 2401365 (1946-06-01), Mercier
patent: 2522443 (1950-09-01), Gaubatz et al.
patent: 2531032 (1950-11-01), Desmoulins
patent: 2543453 (1951-02-01), Fuller
patent: 2547161 (1951-04-01), Johnson
patent: 2583872 (1952-01-01), Newcomb
patent: 2700311 (1955-01-01), Bade
patent: 2804748 (1957-09-01), Hutchinson

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