Servocylinders made of stainless steel equipped with digital proportional valves are the ideal smart hydraulic solution to optimize performances and comfort of naval and marine applications. These solutions for pitch propeller and marine stabilization systems are for use both at high-speed during a vessel’s motion and also while at anchor.
Servocylinders made of stainless steel equipped with digital proportional valves are the ideal smart hydraulic solution to optimize performances and comfort of naval and marine applications.
The underwater fin’s stabilizing system, actuated by Atos electrohydraulic servoactuators, ensures full ship stability, roll, pitch and direction, thus allowing to cruise at high speed with the best comfort. This allows modern commercial, pleasure and luxury vessels to offer enhanced comfort and fuel economy in any sea condition.
Particularly, the bow foils control the stability (pitching) by lifting and lowering the vessel through precise longitudinal regulations through digital proportional valves. The stern foils trim the ship motions (rolling) and the vertical movement (heaving) and the rudder by the fins who are operated by TEZ digital proportional valves, featuring top accuracy and fast response time, with integrated user friendly axis controller and servocylinders capable to perform a combined closed loop control of force and position.
Bow foils on hydrofoil yachts control the stability (pitching) by lifting and lowering the vessel through precise longitudinal regulations through digital proportional valves; the stern foils trim the ship motions (rolling) and the vertical movement (heaving) and the rudder by the fins who are operated by TEZ digital proportional valves.
Atos digital electrohydraulics offers innovative solutions also for other naval applications suitable for commercial, pleasure and luxury crafts, including:
- Controllable pitch propeller: propulsion systems performing higher propulsive efficiency thanks to the adjustment of the blade pitch.
- Roll stabilization systems: underwater fins or anti-roll torque devices generate a counteracting moment to prevent the tendency of the vessel to roll, thus granting enhanced comfort and a safe navigation.
Different solutions are available for stabilization foils and pitch control to ensure high performance and, at the same time, keep the best comfort in any sea condition. The core of these systems, which equip the vessels, is the hydraulics which allow smart and long-lasting solutions:
- Controllable pitch propeller: the digital proportional valves control hydraulic motor connected to the axial rotation of blades, to improve vessel maneuverability and fuel economy.
- Underwater fins: the fins and steer motion are operated by TEZ digital proportional valves, featuring top accuracy and fast response time, with integrated user friendly axis controller and servocylinders capable of performing a combined closed loop control of force and position.
- Anti-roll torque devices: they are interfaced through Fieldbus to the hydrofoils electronic system and to the shipboard sensors (inclinometer, gyroscope and accelerometers) to modify the gravity centre rotatory by stainless steel cylinder controlled from digital proportional valve.
A view of a controllable pitch propeller
Naval environments are very demanding, with factors like high salt content, water based fluids and extended temperature range all coming into play, Atos components in marine execution are the perfect solutions to perform excellent motion control.
Digital servoactuators feature top accuracy and fast response time for pitch propeller and bow steering, with on board axis controller performing closed loop position controls and fieldbus interfacing to master control system.
Stainless steel cylinders with built-in transducer, ensure a corrosion protection over 2000 h in neutral salt spray. Atos electrohydraulics products (power pack + manifolds + cylinders) may be certified by main marine classification societies (RINA, ABS, BV, DNV, Lloyd’s Register, etc.)
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Filed Under: Components, Cylinders & Actuators
