Product Overview

The AMB shaft-driven generator system is an innovative, efficient, and reliable marine power generation solution. The system features an integrated shaft-mounted design, with the generator directly integrated into the propulsion shaft, eliminating the need for a gearbox. Its compact structure and superior efficiency make it particularly suitable for optimizing and retrofitting the electrical systems of both new and existing vessels.

Core technology features

Built-in shaft design

• The generator rotor is directly fixed to the propulsion shaft system by flanges or high-strength bolts, and the stator surrounds the rotor as a whole.
• It abandons the traditional gear reducer, resulting in high transmission efficiency, simplified structure, and significantly improved reliability.

Modular and flexible combination

• The system consists of standardized power generation modules (e.g., 200kW per module) that can be flexibly connected in series according to the ship's needs (supporting power configurations such as 400kW, 600kW, and 800kW).
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• Each module can be installed in a distributed manner in different compartments (such as fore and aft of the engine room), and the electrical systems can operate synchronously in parallel, greatly improving the layout adaptability and making it particularly suitable for the retrofitting of old ships.

Split-type easy installation

• Each module's stator adopts a split-half structure, with optional horizontal (up and down) or vertical (left and right) splitting to adapt to site space and pipeline layout.
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• Installation does not require disassembling the entire shaft system: first, fix the lower/left half to the base, assemble the shaft system, and then install the upper/right half, securing it with high-strength bolts. The rotor also adopts a two-half interlocking design, greatly simplifying the installation process.

Permanent magnet synchronous + bidirectional frequency conversion drive

• It adopts a high-performance permanent magnet synchronous motor, paired with an intelligent bidirectional frequency converter.
• It has both power generation and electric power functions, supports seamless switching between the two modes, and provides ships with flexible energy management and propulsion assistance capabilities.

Six core advantages

1. Significantly reduces fuel consumption

Marine main engines typically have a power margin of over 10%, and shaft-driven generators fully utilize this energy. Fuel costs account for approximately 53% of total ship operating costs, and using shaft generators can directly translate into significant economic benefits.

2. Higher energy efficiency

• The thermal efficiency of the main low-speed diesel engine is higher than that of the medium- and high-speed auxiliary engine.
• The shaft generator system allows for more complete recovery and utilization of the exhaust heat from the main engine, resulting in a significant improvement in overall energy efficiency compared to the high-temperature exhaust waste from the auxiliary diesel engine.

3. Reduce the use of high-cost light diesel oil.

The main generator typically uses economical heavy fuel oil, while auxiliary generators often use light diesel oil, which costs more than twice as much. Shaft-driven generators can significantly reduce light diesel oil consumption, directly lowering fuel procurement costs.

4. Reduce maintenance and operating costs

• by shaft generator during navigation , auxiliary machinery only needs to operate when berthed or in complex waterways, significantly reducing auxiliary machinery operating time.
• The shaft requires less maintenance , has high reliability, and reduces auxiliary machine wear and lubricating oil consumption, resulting in a significant decrease in overall maintenance costs.

5. Improve the cabin working environment

• It can be configured with smaller capacity auxiliary equipment, expand the cabin space, and reduce ambient temperature and noise.
• To create safer and more comfortable working conditions for crew members.

6. Optimize cabin layout and investment

• Auxiliary machine operating time is shortened, higher speed generator sets can be selected, and the size is smaller.
• This can typically reduce the configuration of one auxiliary machine, save on equipment procurement costs, free up more cabin space, and allow for more flexible layout.