Marine propulsion plant with reversible propeller shaft connecte

Details Marine propulsion plant with reversible propeller shaft connecte Marine propulsion plant with reversible propeller shaft connecte

1976-03-16

1977-10-04

Blix, Trygve M.

Power plants

Motive fluid energized by externally applied heat

Having ancillary structure for starting

60 3916S, 60629, 74DIG8, 115 34R, 192 4C, B63H 2308, F01K 1302

Patent

active

040516792

ABSTRACT:
When reversing a marine power plant, due consideration must be given to the fact that the inertia of the ship will continue to force the ship through the water during a moment of time after the shut down of the prime mover, with the propeller then acting as a water turbine tending to rotate the propeller shaft in the same direction as before. If the propulsion plant includes a gas turbine and a reversing gear, the reversing gear is designed in such a manner that the part thereof connected to the turbine will represent, in use, a smaller inertia than the part connected to the propeller shaft, with the propeller shaft together with the propeller attached thereto representing a considerable rotating body. By suitable selection of the means engaging the parts of the reversing gear in their respective working positions for ahead and astern running, respectively, it will be possible to disengage the turbine part of the gear, to brake this part and then to re-engage the gear parts in their new relative position, thereafter braking the propeller connected part by the power of the turbine and finally bringing the whole system to rotate in the desired direction.

REFERENCES:
patent: 2741351 (1956-04-01), Fletcher et al.
patent: 3037348 (1962-06-01), Gassmann
patent: 3173255 (1965-03-01), Kronogard
patent: 3363732 (1968-01-01), Nakamura et al.
patent: 3488947 (1970-01-01), Miller et al.
patent: 3762161 (1973-10-01), Pennig

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