Torque splitting drive train mechanism for a dual counterrotatin

Details Torque splitting drive train mechanism for a dual counterrotatin Torque splitting drive train mechanism for a dual counterrotatin

1989-03-20

1991-04-23

Sotelo, Jesus D.

Marine propulsion

Screw propeller

Having transmission

74665R, 416129, 475248, B63H 2328

Patent

active

050096214

ABSTRACT:
A dual counterrotating propeller drive mechanism for a marine propulsion system incorporates a torque splitting device which consists of a differential gear means and a ratio gear means. The torque splitting device assigns a selectable fixed fraction of the engine torque to each propeller regardless of power, thrust, and speed conditions. The rear one of the two propellers adjusts its rotational speed relative to the front propeller in response to changes in the front propeller's wake and in this way maintains optimum propulsive efficiency over a wide range of operating conditions. Furthermore, precise matching of front and rear propeller parameters for a given application is no longer required.

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