Multi-propeller drive system

Details Multi-propeller drive system Multi-propeller drive system

1994-07-05

1995-05-09

Avila, Stephen P.

Marine propulsion

Screw propeller

Shaft braking or locking

440 75, 440 80, B63H 2128

Patent

active

054135125

ABSTRACT:
A multi-propeller drive system having a single input shaft for connection an engine system, a differential gear assembly for dividing the driving force from the input drive shaft between a pair of output shafts and a pair of laterally spaced propellers driven by the output shafts of the differential gear assembly. The differential gear assembly operates in a manner wherein one output shaft, if required, is permitted to revolve at a different rate than the other output shaft. A pair of brake mechanisms acting on the output shafts of the differential gear assembly enable an operator to control the rotational speed of the respective propellers without modifying the engine speed or transmission settings.

REFERENCES:
patent: 3112728 (1963-12-01), Krause
patent: 3922997 (1975-12-01), Jameson
patent: 4451238 (1984-05-01), Arnold
patent: 4820209 (1989-04-01), Newman

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