Marine propulsion – Screw propeller – Having transmission
Patent
1991-11-15
1992-12-15
Basinger, Sherman
Marine propulsion
Screw propeller
Having transmission
192 0084, 192 51, B63H 2308
Patent
active
051711761
ABSTRACT:
A method and apparatus for decelerating a marine propulsion system during an emergency stop maneuver is provided. In order to achieve a faster reversal of the direction of rotation of a propeller shaft an engine brake is activated before switching the three shaft birotatory reduction gear system in order to decelerate the engaged and rotating gear system parts effectively. Only when the rotation of the gear system parts has been reduced to a predetermined number of revolutions the gear system is switched to the reversed direction of rotation by a control switch on the bridge so that the propeller shaft is rotating in the reversed direction of rotation and subsequently the number of revolutions of the combustion engine is increased to full load. The emergency stop maneuver may be performed in a very short period of time with the proposed method. The apparatus comprises a motor brake having a throttle valve eccentrically supported in the exhaust pipe of the combustion engine.
REFERENCES:
patent: 1394448 (1921-10-01), Sitney
patent: 3363732 (1968-01-01), Nakamura et al.
patent: 3543891 (1970-12-01), Mathers
Gebhardt Hans
Kubis Heribert
Basinger Sherman
MAN Nutzfahrzeuge Aktiengesellschaft
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