Removable Ship Propulsion Module With Integrated Cooling
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Solution Overview
Problem
Existing ship propulsion machines face complications in attaching and detaching propulsion modules due to the integration of cooling liquid pipes between the main body and the propulsion module, making operations cumbersome.
Innovation Solution
A ship propulsion machine design that includes a removable propulsion module with a drive shaft inserted into a housing part, featuring a connection mechanism for easy attachment and detachment, and a cooling system integrated within the main body to avoid pipe disconnection during module exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cooling liquid pipes are integrated between the main body and propulsion module, then cooling function is maintained, but attachment and detachment operations become cumbersome
Solution Approach 1:
The propulsion module is designed as a separable unit that can be attached and detached from the main body. The cooling liquid pipes are routed through the main body housing, allowing the propulsion module to be segmented from the cooling system. This enables easy attachment and detachment operations while maintaining the cooling function through the integrated pipe routing in the main body.
2Adaptability or versatility
If propulsion module is made removable for flexibility, then adaptability improves, but connection complexity increases
Solution Approach 1:
The main body housing is designed with a universal structure that can accommodate different propulsion modules (propeller type and water jet type). The housing includes integrated cooling liquid pipe routing and mounting structures that work with both propulsion module types. This universal design enables easy switching between propulsion methods while avoiding the need for separate connection mechanisms for each type.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates easy attachment and detachment of propulsion modules without the need for complex pipe connections, allowing users to switch between propeller and water jet propulsion methods based on water depth, enhancing operational flexibility and efficiency.
Implementation Method 1
a cooling liquid pump that pressure-feeds the cooling liquid via the cooling liquid pipe to the water jacket
Implementation Method 2
a heat sink that cools the cooling liquid
Data Source
AI summary
A ship propulsion machine includes a ship propulsion machine main body and a propulsion module. The ship propulsion machine main body includes a power source, a tank storing cooling liquid, a heat sink cooling the cooling liquid, a cooling liquid passage connecting the power source and the heat sink, a pump causing the cooling liquid to flow in the cooling liquid passage, a first housing part housing the heat sink. The propulsion module includes a drive shaft rotated by the power source and a propulsion device converting rotation of the drive shaft into the propulsion force. A connection mechanism separably connecting an output shaft of the power source and the drive shaft is provided on the power source and on the drive shaft. The first housing part and the propulsion device are provided with an attachment mechanism detachably attaching the propulsion module.