Marine Propeller Adjustable Exhaust Volume
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing marine propeller designs require multiple plugs with different ventilation aperture sizes to adjust exhaust volume, leading to increased costs and convenience issues due to the risk of plugs being lost or misplaced.
Innovation Solution
A marine propeller with adjustable exhaust structures, featuring an exhaust unit and an adjustment member with shielding portions that can be moved relative to exhaust holes to adjust the exhaust volume without changing any component parts, allowing optimal performance under varying conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple plugs with different ventilation aperture sizes are used to adjust exhaust volume, then the propeller can achieve optimal performance under different conditions, but the cost increases and the risk of plugs being lost or misplaced increases
Solution Approach 1:
The invention transforms the static plug system into a dynamic adjustable system. The adjustment member can be rotated to change the shielding area of the exhaust through holes, allowing continuous adjustment of exhaust volume. This dynamic mechanism eliminates the need for multiple different plugs while maintaining adaptability to different operating conditions.
Solution Approach 2:
The single adjustment member with rotatable shielding portions serves multiple functions: it can completely block exhaust holes, partially block them at various degrees, or completely open them. This multi-functional component replaces multiple specialized plugs, reducing device complexity while maintaining the ability to adjust exhaust volume for different conditions.
2Adaptability or versatility
If multiple plugs with different ventilation aperture sizes are prepared, then exhaust volume can be adjusted for different conditions, but the cost increases due to preparing a large number of plugs
Solution Approach 1:
Instead of manufacturing multiple static plugs with different aperture sizes, the invention manufactures a single adjustment member with rotatable shielding portions. This dynamic component can be produced more economically while providing the same adaptability through rotational adjustment rather than through multiple discrete parts.
3Adaptability or versatility
If multiple plugs are used to adjust exhaust volume, then optimal performance can be achieved under varying conditions, but convenience decreases due to the risk of plugs getting lost when not in use
Solution Approach 1:
The rotatable adjustment member provides a convenient, tool-free adjustment mechanism. Users can simply rotate the adjustment member to change exhaust volume settings without handling multiple separate plugs. The adjustment member remains permanently installed on the propeller hub, eliminating the risk of loss while maintaining full adjustability.
Solution Approach 2:
The adjustment member is designed to be easily operable by the user without requiring additional tools or assistance. The rotatable mechanism with indicator marks allows users to independently adjust and identify exhaust settings, making the system self-service friendly and eliminating the inconvenience of managing multiple plugs.
Data Source
AI summary
A marine propeller having multiple adjustable exhaust structures is disclosed. Each adjustable exhaust structure includes an exhaust unit with exhaust through holes cut through the outer surface and inner surface of the propeller hub of the marine propeller, an adjustment member with shielding portions mounted in the exhaust unit, and a fastening member for locking the adjustment member to the exhaust unit. The adjustment member is movable to adjust the shielding area of the shielding portions relative to the exhaust through holes when disengaged from the constraint of the fastening member. Thus, the exhaust volume is adjustable to fit different conditions without changing any component parts of the marine propeller, facilitating ease of use of the marine propeller.