A marine dual-power switching device

By designing an external high-power motor and a coupling in the marine gearbox, the problems of high diesel engine noise and insufficient motor power are solved, achieving silent high-speed driving and safe control, simplifying motor maintenance, and being suitable for various types of ships.

CN120308319BActive Publication Date: 2025-09-23HANGZHOU XIAOSHAN JIANGNAN GENERAL MASCH CO LTD
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Patent Information

Application Number
CN202510821544.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2025-09-23
Estimated Expiration
2045-06-19

AI Technical Summary

Technical Problem

In existing marine gearbox systems, diesel engines are noisy and environmentally unfriendly when used as the main power source, while electric motors are underpowered and struggle to meet high-speed driving requirements. Furthermore, the motors are built into the gearbox, making maintenance difficult and preventing the installation of high-power motors.

Method used

The high-power motor is placed outside the gearbox, and the coupling is equipped with an annular oil chamber and a corrugated damping plate. Power is transmitted through the coupling and the diesel engine can be quickly started in an emergency, achieving silent high-speed driving and safe control.

Benefits of technology

A high-power motor is used as the main power source to meet the needs of silent and high-speed driving, ensure the rapid start of the diesel engine in an emergency, avoid capsizing accidents, ensure safety and environmental protection, and simplify motor maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120308319B_ABST
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Abstract

The present invention discloses a marine dual-power switching device, which relates to the technical field of marine gearboxes, and includes a diesel engine, a motor, and a gearbox. The motor serves as the main power input of the gearbox, and the diesel engine serves as the auxiliary power input of the gearbox, and the power of the motor is greater than that of the diesel engine. The motor is externally arranged on the outside of the gearbox, and the output shaft of the motor is rotationally matched with the motor input shaft arranged inside the gearbox through a coupling. The coupling is an elastic damping coupling. The present invention uses a high-power motor as the main power and a diesel engine as the auxiliary power of a marine generator set. By placing the high-power motor outside the gearbox, the traditional design is broken, and the connection of a high-power and large-size motor can be realized. The motor is used as the main power to drive the ship to operate. The diesel engine is only used in emergency situations. The dual power input meets various requirements such as safety and environmental protection.
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Citation Information

Patent Citations

  • Dual-power motor externally-hung marine gearbox

    CN118753485A

  • Hydroeleastic joint with an overpressure channel having a variable cross-section

    CN1630787A