Outboard motor gear box shell provided with partition plate

By installing partitions in the outboard engine gearbox housing to separate the heat dissipation cavity, circulating heat exchange of the coolant is achieved, solving the problem of reduced cooling efficiency caused by the deposition of seawater impurities, ensuring stable operation of the equipment and extending its service life.

CN223399191UActive Publication Date: 2025-09-30GUANGDONG INLAND PORT & SHIPPING IND RES CO LTD
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Patent Information

Application Number
CN202423023017.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-09-30
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

During operation, impurities and particles in seawater are easily deposited on electric outboard motors, resulting in reduced cooling efficiency and possible blockage and damage to the equipment.

Method used

An outboard motor gearbox housing with a partition is designed, which includes a first heat dissipation chamber, a second heat dissipation chamber, and a liquid storage chamber. The heat dissipation chamber is divided into multiple heat dissipation zones by the partition, and flow holes are provided at the connection points. Coolant is circulated in the heat dissipation chamber for heat exchange, thereby increasing the heat exchange area and extending the flow path.

Benefits of technology

It effectively improves cooling efficiency, prevents equipment clogging, ensures stable operation of the outboard engine gearbox, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.
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Abstract

A first heat dissipation cavity, a second heat dissipation cavity and a liquid storage cavity are arranged in the shell, the liquid storage cavity is located at the front end of the shell and communicated with a storage box storing cooling liquid, the first heat dissipation cavity is located at the rear end of the shell and communicated with a water pump, and the second heat dissipation cavity is located between the liquid storage cavity and the first heat dissipation cavity. The liquid storage cavity is communicated with the second heat dissipation cavity, the first heat dissipation cavity is communicated with the second heat dissipation cavity, a plurality of partition plates are arranged in the first heat dissipation cavity and the second heat dissipation cavity at intervals, and the partition plates are vertically arranged to divide the first heat dissipation cavity and the second heat dissipation cavity into a plurality of heat dissipation subareas. Cooling liquid is subjected to heat dissipation through the first heat dissipation cavity and the second heat dissipation cavity, and stable operation of the outboard motor gearbox is ensured; by controlling the flowing path of the cooling liquid, the heat exchange time is prolonged, the heat exchange area is increased, and the heat dissipation performance is improved.
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