Turnkey project on the Mestre Jaime Feijó ferry

Characteristics of the electrohydraulic system supplied by Núñez Vigo:

• High power density closed circuit hydraulic drive in compact dimensions for maximum efficiency and performance.
• PTO anchored axial piston pump sized for maximum power on transverse propellers with main engine idling.
• Axial piston hydraulic motor and adjustable displacement for fine setting during start-up.
• Maximum hydraulic power at 280L / min @ 350bar with a torque consumed at PTO of 1800Nm.
• Safety valves and proportional control solenoid valves integrated in the pump assembly.
• Tanks in compact sets with all accessories and ready for anchorage suspended in bulkhead.
• Electronic control with custom designed control panels for the operation of a pair of propellers.
• Modular system for use of up to 3 double control panels.
• Programmable controller to adjust the response to suit the client.
• Push power indication display for maximum control of the ship's maneuvers.
• VDR interface and interconnection with the ship's integrated alarm system.
• Remote pump clutch control integrated in the control panels.
• Indication with alarm code for quick fault identification.

Baliño supplied the complete line of shafts, in which VICUSdt performed the optimization and design of the propeller using a methodology based on CFD tools.

The propeller design goals were to achieve maximum efficiency at a service speed of 14 knots, reaching the maximum speed of 16 knots and combined with a low level of pressure pulses transmitted to the hull at 14 and 16 knots.

Technical characteristics of the propellers:

• HTT-1/900 transverse thruster with 150 kW power
• Drive by bevel group
• Four-blade bronze propeller rotating at 568 rpm.
• Thrust 26 kN