Brunvoll Equipment
Retractable Azimuth Combi Thruster
Brunvoll retractable azimuth combi thruster (AR 63–AR 115, 500–3,500 kW) that works as an azimuth thruster for positioning, track keeping and take-home, and as a tunnel thruster for port manoeuvring.
Description
The Brunvoll Retractable Azimuth Combi Thruster is a retractable azimuth thruster that can also operate as a conventional tunnel thruster: azimuth mode for positioning, track keeping and redundant take-home propulsion, tunnel mode for port manoeuvring. A vertical top-mounted electric motor provides direct power transmission, eliminating special shafts, quick-release couplings and gearboxes.
Design
- Column-shaped unit installed vertically in the thruster compartment
- Lowered into operating position and retracted into the hull by hydraulically operated lifting equipment
- When retracted, mechanically locked by spring-loaded locking devices; the hull opening is closed by a flush-plate attached to the bottom of the propeller nozzle
- In operating position the unit is locked and pre-loaded by the hydraulic lifting/lowering actuators; azimuth movement is locked by mechanical brakes when not turning
- Stem housing moves through a combined sealing box and bearing housing mounted to the tank top/sea chest integration plate
- Delivered pre-assembled (azimuth arrangement, retracting arrangement and guiding column) on the tank top/sea chest integration plate for easy installation
Underwater unit
- Replaceable propeller blade bearing liners
- Propeller blades replaceable inside the duct
- Various propeller blade materials and designs
- Controllable pitch and fixed pitch propeller versions
- Advanced multiple sealing system for the propeller shaft
- Non-polluting sealing solutions for Environmentally Acceptable Lubricants (EAL); limited amounts of EAL required
- Design complies with US EPA Vessel General Permit (VGP)
Technical data
| Model | Propeller diameter (mm) | Power range (kW) |
|---|---|---|
| AR 63 | 1 750 | 500 – 800 |
| AR 80 | 2 100 | 1 000 – 1 500 |
| AR 100 | 2 600 | 1 800 – 2 500 |
| AR 115 | 2 900 | 2 500 – 3 500 |
Other sizes on request.
Options
- Electric motor starting options: direct on-line (DOL), star-delta (approx. 60% lower in-rush current than DOL), auto-transformer (typically 50–70% motor voltage at start), electronic soft starter, or frequency converter (6-pulse, 12/24-pulse or Active Front End); motor started with propeller in zero pitch position
Applications
Research ships, coast guard vessels, offshore supply vessels and shuttle tankers, including North Atlantic operation.
Specifications
| MODEL | PROPELLER DIAMETER MM | POWER RANGE KW |
|---|---|---|
| AR 63 | 1 750 | 500 - 800 |
| AR 80 | 2 100 | 1 000 - 1500 |
| AR 100 | 2 600 | 1 800 - 2 500 |
| AR 115 | 2 900 | 2 500 - 3 500 |
| *Other sizes on request |
More from Brunvoll
- Brunvoll 2-speed Gearboxes
- Brunvoll Azimuth Thruster with Push Ducted Propellers
- Brunvoll BruCon Condition Monitoring System
- Brunvoll BruCon DP & Joystick Control Systems
- Brunvoll Controllable Pitch Propellers
- Brunvoll CRP Contra Rotating Propellers
- Brunvoll Electric & Hybrid Propulsion System Integration
- Brunvoll Electric Azimuth Propulsion
- Brunvoll Electric CP-Propeller and Gearbox Propulsion System
- Brunvoll Hybrid CPP Propulsion Systems
- Brunvoll LowNoise Tunnel Thrusters
- Brunvoll Medium Speed CPP & Gearbox Propulsion System
Featured products
All products →
Equipment
Munson 48′ Series
48 ft welded aluminum landing craft for heavy cargo in rough conditions, used for oil spill response and firefighting.
Equipment
Marine Stage Gangways and Boarding Ladders
Portable aluminum marine gangways for ship and barge access: GW500 straight truss (2000 lb), GW100 bowed truss (one ton), SGW stage gangway (750 lb, 28 in wide), plus a marine boarding ladder.
System / Package
LNG Fuel Gas Supply System (FGSS)
Marine LNG fuel gas supply system for newbuild and retrofit dual-fuel vessels, conditioning and delivering LNG to engines with controlled pressure, temperature and flow; for tankers, container ships, LNG carriers and Ro-Ro.
Similar products