Misea Marine Equipment
Tunnel Thruster
Transverse hull-mounted tunnel thruster generating lateral thrust for low-speed maneuvering and berthing; electric or hydraulic drive, fixed or adjustable pitch propeller.
Description
The Tunnel Thruster (also called transverse or side thruster) is an auxiliary propulsion unit installed horizontally in the bow or stern hull. It drives water transversely through the hull to produce lateral thrust, compensating for the rudder's lack of steering effect at low speed and reducing dependence on tugs when berthing.
Construction
- Transverse cylindrical tunnel with smooth inner wall to reduce flow resistance and turbulence
- Propeller in fixed-pitch or adjustable-pitch design
- Drive: electric motor (stable output, low noise) or hydraulic motor (high power density, overload resistance for heavy-duty service)
- Sealing and anti-corrosion components for seawater service; vibration damping to reduce hull vibration
Operation
- Propeller reversal switches thrust between port and starboard
- Operates independently of the main engine, with fast response for counteracting crosswind and current
Applications
- Container ships, bulk carriers, tankers, passenger and cruise ships
- Offshore wind service vessels, construction, salvage and drilling support vessels
- Ferries, workboats and naval auxiliary vessels
- Single or multiple units in bow and/or stern positions depending on tonnage and duty
More from Misea Marine
- Misea Marine Azimuth Thruster
- Misea Marine Azimuth Thruster with Tube
- Misea Marine Barge Azimuth Thruster
- Misea Marine Bow Thruster
- Misea Marine Controllable Pitch Propeller (CPP) Bow Tunnel Thruster
- Misea Marine Deck Combination Azimuth Thruster
- Misea Marine Deck Mounted Azimuth Thruster
- Misea Marine Deck Type Rudder Propeller
- Misea Marine Diesel Engine Driven Tunnel Thruster
- Misea Marine Electric Tunnel Thruster
- Misea Marine Fixed Pitch Propeller (FPP) Bow Tunnel Thruster
- Misea Marine Hydraulic Azimuth Thruster
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