LCC20 114: Main Engine Flashcards

1
Q

High Pressure Turbine

A

made by General Electric, 8 Reactive Stage. steam is converted into mechanical energy. High Speed, Low Torque. J3P Turbine.

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2
Q

Low Pressure Turbine

A

made by GE. 6 Reactive Stage ahead, 2 impulse stage astern. Low speed, High torque.

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3
Q

Main Condenser

A

Condenses the Steam back into water. Cooling medium is Seawater provided by the scoop.

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4
Q

Main Circulating Pump

A

Steam driven propeller type pump used to provide seawater to the main condenser when ship is below 8 knots. can be used to de-water a space and a MAX of 5000gpm

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5
Q

Guarding Valves

A

Isolates main steam from HP and LP turbines prior to the throttle valves.

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6
Q

Ahead Throttle Valve

A

Remote hand wheel located in the EOS. Controls amount of main steam admitted to the HP turbine.

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7
Q

Astern Throttle valve

A

Remote hand wheel located in the EOS. Controls amount of main steam admitted to the LP turbine.

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8
Q

Thrust Bearings

A

Prevents axial movement of the turbine rotors. Kingbury type.

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