Underwater turbine

By using a translationally movable push rod and locking device in the underwater turbine, combined with a hydraulic or pneumatic linear actuator, the limitations of blade adjustment space and shutdown reliability in small underwater turbines are solved, enabling flexible adjustment and automatic shutdown in case of failure.

CN122422650APending Publication Date: 2026-07-17AB SKF SKF PATENT DEPARTMENT

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
AB SKF SKF PATENT DEPARTMENT
Filing Date
2024-12-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In relatively small underwater turbines, existing drive units occupy a large amount of installation space, making blade adjustment difficult and unable to be effectively shut down in the event of power supply failure or malfunction.

Method used

The rotor blades are rotated by a push rod with translational motion and a locking device. The push rod's translational motion is used to adjust the rotation of the rotor blades and fix the blade position in case of failure. The hydraulic or pneumatic linear actuator and locking device ensure that the blades are in a specific position. The rotor spindle design is optimized by combining a rotational decoupling bearing unit.

Benefits of technology

The rotor blades were flexibly adjusted within a limited space, ensuring that the underwater turbine would automatically shut down in case of failure or energy failure, thus improving the system's reliability and energy efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及一种水下涡轮机(1),具有转子毂(2),转子毂连接到转子主轴(6)以联合旋转并且被设计为驱动转子主轴(6),其中,转子主轴(6)延伸到经由转子主轴(6)连接到转子毂(2)的机舱(8)中并且在那里驱动接纳在机舱中的发电机(10),其中,转子毂(2)另外被设计为支撑至少一个转子叶片(4),其中,至少一个转子叶片(4)紧固到转子叶片轴(204),并且其中,转子叶片轴(204)被可旋转地安装在转子毂(2)上,并且具有第一转子毂侧端部(208)和第二海侧端部(207),第一转子毂侧端部突出到转子毂(2)的内部中,第二海侧端部能够固定到相应的转子叶片(4)以联合旋转,其中,在每种情况下,转子叶片轴(204)的转子毂侧端部(208)被设计为与转子叶片调节配置(300)相互作用,以使至少一个转子叶片轴(204)旋转,其中,转子叶片调节配置(300)另外具有可平移运动的推杆(332),推杆(332)具有第一转子毂侧端部(334),第一转子毂侧端部被设计为突出到水下涡轮机(1)的转子毂(2)中并且具有至少一个连接装置(340),至少一个连接装置被设计为能够连接到转子叶片轴(204),使得推杆(332)的平移运动被转化为至少一个转子叶片轴(204)的旋转运动,并且其中,推杆(332)具有第二机舱侧端部(336),第二机舱侧端部被设计为在水下涡轮机(1)的机舱(8)的方向上延伸,其中,转子叶片调节配置(330)另外具有锁定装置(480),锁定装置被设计为将推杆(332)固定在至少一个预定的平移位置。
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