Filtered Water Injector Assembly for Aviation Cooling Nozzle Clogging
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Solution Overview
Problem
Aviation cooling systems face issues with clogging and debris contamination in water injectors, which can lead to reduced cooling efficiency and system reliability due to particulate matter carried in the water coolant.
Innovation Solution
A water injector design featuring a filter with filter media positioned before the spray nozzle to capture particulates, preventing clogs and ensuring efficient water flow, combined with a mounting system to secure the injector to the ram air header and a sealing gasket to prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If water is channeled through the cooling system to enhance cooling efficiency, then cooling performance is improved, but particulate matter in the water causes clogging and reduces system reliability
Solution Approach 1:
The filter is positioned upstream in the water flow path, before the water reaches the spray nozzle and heat exchanger. This preliminary filtration action removes particulate matter before it can cause clogging, allowing the system to maintain both high cooling efficiency and reliability over extended operation periods
2Reliability
If a filter is added to the water injector to capture particulates, then system reliability is improved, but device complexity increases
Solution Approach 1:
The filter is integrated into the water injector assembly itself, merging the filtration function with the existing water delivery system. The filter housing, element, and mounting structures are combined with the injector body, spray nozzle, and mounting plate, creating a unified component that improves reliability without requiring separate filtration systems
Solution Approach 2:
The water injector assembly serves multiple functions: it delivers water for cooling, filters particulates from the water, and provides a mounting structure for attachment to the heat exchanger. This multi-functionality reduces the need for additional separate components, maintaining simplicity while improving 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 solution effectively reduces clogging and maintains cooling efficiency by filtering out debris, ensuring reliable operation of the aviation cooling system and easy maintenance access.
Implementation Method 1
A filter is supported at the body and fluidically exposed to the conduit. The filter is configured and disposed to capture particulate flowing into the water injector towards the spray nozzle.
Data Source
AI summary
A water injector for an aviation cooling system includes a body having a first end, a second end, and an intermediate portion extending therebetween. A conduit extends through the body from the first end to the second end. A spray nozzle is fluidically connected to the conduit and arranged at one of the first end and the second end. A mounting plate is arranged at the other of the first end and the second end. The mounting plate is configured and disposed to secure the body to an aviation cooling component. A filter is supported at the body and is fluidically exposed to the conduit. The filter is configured and disposed to capture particulate flowing into the water injector towards the spray nozzle.