28 Jul., 2025
Share:
In the mysterious underwater world, underwater thrusters are crucial power equipment, acting like the "heart" of underwater devices, providing strong power support for various fields such as marine research, engineering operations, and recreational diving.
Working Principle
The working principle of underwater thrusters is based on Newton's third law, which achieves movement by converting energy to push water and generate a reaction force. Different types of underwater thrusters vary in their energy conversion methods, but they all operate around this basic principle.
Main Types
The propeller-type thruster is the most common type of underwater thruster. It relies on the high-speed rotation of the propeller to push water, generating a reaction force to drive the device. According to the arrangement, it can be divided into single-propeller, dual-propeller, and multi-propeller types. Among them, single-propeller thrusters are low-cost and compact in structure, while dual-propeller and multi-propeller thrusters have stronger maneuverability and are often used in scenarios requiring precise operations. The water-jet thruster gains power by sucking in water and then ejecting it at high speed. It has the advantages of low noise, high efficiency, and anti-entanglement, making it widely used in high-performance equipment such as underwater drones, ensuring flexible movement in complex waters. Bionic thrusters mimic the movement patterns of organisms such as fish tail 摆动 and squid jetting, combining flexibility and concealment. For example, bionic fish-shaped robots equipped with bionic thrusters can move freely in narrow spaces and are often used in scientific research monitoring and military reconnaissance. The pump-jet thruster is a new type of combined hydrodynamic propulsion device developed in recent decades, integrally designed with a duct, rotor, and stator. It features high critical speed and low radiated noise, gradually becoming the preferred choice for traditional mechanical propulsion methods of underwater equipment, and is applied in new-generation torpedoes and quiet submarines in some countries.
Characteristics
Underwater thrusters use high-efficiency motors and propellers, providing strong thrust. They undergo sealing and anti-corrosion treatments, enabling long-term operation in high-salt, high-pressure, and low-temperature underwater environments. They also adopt vibration and noise reduction technologies, are equipped with electronic control systems for precise operation, and have a compact structure for easy installation. In terms of applications, they are core equipment for marine research, assisting ROVs, AUVs, and the "Jiaolong" submersible in completing deep-sea tasks. They aid robotic operations in underwater engineering, support offshore wind power maintenance, reduce physical exertion in diving to expand exploration ranges (with electric underwater scooters becoming a new entertainment option), and enhance submarine performance while assisting underwater unmanned platforms in military missions.
Future Development Trends
Underwater thrusters will develop towards higher efficiency by developing more efficient propulsion systems to reduce energy consumption and improve endurance, meeting the needs of long-term underwater operations. They will move towards intelligence by integrating the Internet of Things and artificial intelligence technologies to achieve autonomous navigation, obstacle avoidance, and task planning, enhancing operational intelligence. They will develop towards multi-functionality by combining sensor and communication technologies, integrating cameras, sonar, and data collection modules to provide comprehensive underwater detection and monitoring capabilities. They will advance towards environmental friendliness by developing low-noise, low-vibration eco-friendly thrusters to reduce impacts on the underwater ecosystem, in line with sustainable development requirements. Additionally, they will move towards miniaturization by developing smaller and more flexible thrusters suitable for underwater tasks in narrow spaces and complex terrains, improving operational flexibility and adaptability.
As a key technical equipment for underwater activities, underwater thrusters will play an increasingly important role in the development of marine science and technology in the future, helping humans better explore the mysteries of the deep sea and carry out various underwater activities.
Latest News
Learn MoreFuber RIM Series Thrusters Launched with a Bang
Fuber RIM Series Thrusters Launched with a Bang, From 1.5kw to 15kw, as bow thruster, subsea thruster
11 Jan., 2025
Fuber Technology Showcases Electric Outboard Motors at BOOT Dusseldorf
Fuber Technology Co., Ltd., a prominent player in the marine equipment sector, recently took part in the renowned BOOT Dusseldorf.
06 Feb., 2025
Hao Ye Technology won the second prize in national competion
On December 12, 2024, the 9th "Maker in China" SME Innovation and Entrepreneurship Competition National Finals came to a successful conclusion in Dongguan, Guangdong Province.
14 Dec., 2024
Related Products
CONTACT US NOW
A Better User Experience
We coopetate with a group of world-class scientific research practitioners, and delivered thousands of units, including Underwater thrusters, electric outboard, rotary actuators, and other products to our customers.
Many knowledgeable and realistic customers have given us a lot of recognition and support, which makes us more firm in the spirit of perfectionist craftsmanship, taking the boundaries of technology as our boundaries, and making unremitting efforts to pursue a better user experience.