LCC20 114: Main Engine Flashcards
High Pressure Turbine
made by General Electric, 8 Reactive Stage. steam is converted into mechanical energy. High Speed, Low Torque. J3P Turbine.
Low Pressure Turbine
made by GE. 6 Reactive Stage ahead, 2 impulse stage astern. Low speed, High torque.
Main Condenser
Condenses the Steam back into water. Cooling medium is Seawater provided by the scoop.
Main Circulating Pump
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
Guarding Valves
Isolates main steam from HP and LP turbines prior to the throttle valves.
Ahead Throttle Valve
Remote hand wheel located in the EOS. Controls amount of main steam admitted to the HP turbine.
Astern Throttle valve
Remote hand wheel located in the EOS. Controls amount of main steam admitted to the LP turbine.
Thrust Bearings
Prevents axial movement of the turbine rotors. Kingbury type.