A dog clutch assembly

By designing a jaw clutch assembly and employing the cooperation of engine shaft, motor gear, sliding sleeve and piston assembly, the problem of bidirectional high torque transmission and rapid response in existing clutches in aircraft hybrid systems has been solved, achieving high reliability and safety and meeting the design requirements of aircraft hybrid systems.

CN224396978UActive Publication Date: 2026-06-23HARBIN DONGAN AUTO ENGINE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HARBIN DONGAN AUTO ENGINE CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing clutches are difficult to achieve bidirectional high torque transmission, rapid response, and high reliability in aircraft hybrid systems, especially in the event of engine failure, where they cannot be disengaged in an emergency, posing a safety hazard.

Method used

Design a jaw clutch assembly, including an engine shaft, a motor gear, a sliding sleeve, a constant pressure spring, and a piston assembly. The sliding sleeve engages or disengages from the motor gear through the cooperation of hydraulic pressure and spring, has a self-locking function, supports bidirectional power transmission, and provides rapid response.

Benefits of technology

It achieves bidirectional torque transmission, rapid response, and high reliability, meeting the requirements of aircraft hybrid systems for transmitting large torques, rapid response, and lightweight design, and ensuring operational safety.

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Abstract

The utility model provides a kind of dog clutch assembly, belong to clutch technical field. Bidirectional large torque transmission function can be realized, with quick response, high reliability and light weight characteristics, suitable for aircraft hybrid transmission. Including engine shaft, motor gear, sliding sleeve, normal pressure spring and piston assembly;The motor gear is installed on engine shaft by needle bearing, the sliding sleeve one end is engaged with engine shaft, through oil pressure, normal pressure spring and piston assembly cooperation, sliding sleeve other end and motor gear present engagement or disengagement state. The utility model is compact in structure, adopts engagement element rigid connection, with self-locking function, can realize bidirectional power transmission function, reliably transmit torque, strong carrying capacity, can quickly respond clutch separation or engagement, guarantee operation safety, meet the demand of aircraft hybrid system transmission large torque, quick response, high reliability, light weight design.
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