Outboard Engine Cover Ribs for Water Separation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing outboard engine cover structures are inadequate in effectively removing water and moisture that enters during air intake, which can lead to rust and salt damage.
Innovation Solution
An outboard engine cover structure featuring an inner and outer cover with a flow space between them, including an intake at the lower portion of the outer cover and communication ports above, along with first and second ribs arranged between the intake and communication ports to enhance water removal efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If air intake is increased for engine cooling, then cooling efficiency is improved, but water and moisture intrusion is worsened
Solution Approach 1:
The cover is divided into inner and outer covers creating a flow space, with ribs segmenting the air flow path to separate water removal function from air intake function, allowing both cooling and water prevention to occur simultaneously
Solution Approach 2:
The flow space between inner and outer covers acts as an intermediary chamber where air is cooled and water is removed before air enters the engine, mediating between the need for cooling and the need to prevent water intrusion
2Object-affected harmful factors
If water removal structures are added to the cover, then water removal efficiency is improved, but device complexity is worsened
Solution Approach 1:
Ribs are strategically placed only in specific locations within the flow space where they are most effective for water removal, rather than uniformly across the entire cover, optimizing water removal while minimizing added complexity
Solution Approach 2:
The water removal function is merged into the existing cover structure by forming ribs within the flow space, combining protection and cooling functions into a single integrated component rather than adding separate water removal devices
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
The structure effectively removes water from the air intake, improving water removal efficiency without significantly reducing airflow velocity, thus preventing rust and salt damage to the engine.
Implementation Method 1
first ribs arranged between the intake and the communication port in the flow space; and second ribs arranged between the intake and the communication port
Implementation Method 2
configured to cause water and the like to be taken in together with air to be taken in from the intake to stand still or flow in reverse
Data Source
AI summary
An outboard engine cover structure that covers an outboard engine and includes an inner cover on an inside and an outer cover on an outside. The structure includes a flow space for air formed between the inner and outer covers, an intake formed in a lower portion of the outer cover and configured to take in outer air to the flow space, a communication port formed in the inner cover in a position above the intake, and configured to cause an inner space of the inner cover accommodating the outboard engine to communicate with the flow space, first ribs arranged between the intake and the communication port in the flow space; and second ribs arranged between the intake and the communication port and positioned closer to the communication port than the first ribs in the flow space.