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The flashcards below were created by user
beukelman
on FreezingBlue Flashcards.
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CRP
Controllable reversible pitch
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State the purpose of the CRP system
provides efficient power plant operation over the entire range or the vessel's ahead and astern operating parameters.
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HOPM
- Hydraulic oil power module
- establish and regulate the hydraulic system.
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Gear/attached pump
- A high capacity, high-pressure positive displacement hydraulic screw pump.
- It is mounted on the reduction gear
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Electric/standby pump
- 2 horizontal screw type standby pumps
- located near the reduction gear
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OD box
- Oil distribution box
- mounted on the reduction gear casing.
- It is the interface between the remote control system and the hydraulic/mechanical system.
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CRP head tank
the hydraulic oil head tank is higher than the OD box, to provide a static head to the hydraulic system when the hydraulic pumps are down.
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Emergency hydraulic hand pump
- part of the emergency pitch positioner assembly.
- The hand pump and the 4-way valve, apply enough oil pressure to the OD box to hold the full emergency ahead position
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Hub/blade assembly
- the regulating valve pin, and liner assembly, inside the piston rod directs the flow of hydraulic oil to the piston.
- The blade pitch is set at any desired position by controlling this oil flow
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CRP
controllable reversible pitch propeller
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