Engine Compartment Fluid Drain Shielding Airflow
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In engine compartments, airflow from cooling inlets can interfere with fluid drainage, redirecting leaked fluids away from drain holes and potentially causing fires due to the presence of flammable fluids, which exacerbates the risk of fire hazards.
Innovation Solution
A fluid drainage system comprising a funnel member with a drain shield that directs airflow away from the fluid and includes deck holes to allow unimpeded fluid entry, ensuring effective drainage to an external drain line, while preventing airborne fluid from being redirected by airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling inlet is located near a deck drain hole to provide cooling airflow, then cooling efficiency is improved, but airflow redirects fluid away from the drain hole preventing proper drainage
Solution Approach 1:
A shield member is introduced as an intermediary component between the cooling inlet and the drain hole. The shield member has a first surface facing the cooling inlet and a second surface facing the drain hole, creating a physical barrier that mediates the interaction between airflow and fluid drainage, allowing both cooling and drainage functions to operate effectively without interfering with each other
2Temperature
If airflow directs fluid along the airflow path through the air flow inlet screen, then cooling airflow is maintained, but flammable fluid scrubs hot surfaces causing fire hazard
Solution Approach 1:
The shield member acts as a protective intermediary that blocks the path between the cooling airflow and the drain hole area. This prevents flammable fluid that has been redirected by airflow from coming into contact with hot engine surfaces, thereby eliminating the fire hazard while preserving the cooling airflow function
Solution Approach 2:
The shield member utilizes the airflow path in a beneficial way by strategically positioning itself to allow cooling airflow to pass over it while simultaneously using the airflow direction to keep flammable fluid away from hot surfaces. The potential harmful effect of airflow redirecting fluid is converted into a beneficial separation that prevents fire hazards
3Reliability
If drain holes are provided on the engine deck floor, then fluid drainage path is established, but airflow causes fluid to miss the drain holes and flow along the engine deck
Solution Approach 1:
The shield member serves as an intermediary structure that modifies the local airflow pattern around the drain hole. By positioning the shield with its first surface facing the cooling inlet and second surface facing the drain hole, it creates a protected zone that guides fluid toward the drain hole while allowing cooling airflow to pass over, thereby improving fluid flow control without compromising drainage reliability
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 system effectively shields fluids from airflow, ensuring they are directed to the external drain line, reducing the risk of fires by preventing fluid from being redirected and providing a safe path for fluid drainage from the engine compartment.
Implementation Method 1
A drain shield circumscribes the top end of the funnel member and upwardly extending therefrom and directs airflow away from the funnel member
Implementation Method 2
a funnel member adapted to receive fluid in the top end and direct the fluid to an external drain line through a drain hole at the bottom end
Data Source
AI summary
The present invention achieves technical advantages as an engine compartment drainage system that allows fluid on an engine deck to exit an engine compartment, while shielding fluid from airflow. A fluid drainage apparatus utilizes a funnel member to direct fluid to an external drain line. A drain shield circumscribes the top end of the funnel member and upwardly extending therefrom and directs airflow away from the funnel member. A plurality of deck holes are disposed in the drain shield, such that fluid on the deck can enter the funnel member and exit the engine compartment. A fluid drainage system, disposes the fluid drainage apparatus in an engine deck to allow fluid on the deck to enter a funnel member of the apparatus and direct it toward the external drain line.