Plasma Treated Turbine Filter Moisture Barrier
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Solution Overview
Problem
Existing air filters for gas turbine engines are inadequate in harsh environmental conditions such as heavy fog, dust/sand storms, leading to operational problems and the need for frequent replacements.
Innovation Solution
Plasma treatment of turbine filters with coatings that provide a moisture barrier, enhancing their ability to protect the engine from moisture and extend their lifespan by applying hydrophobic and hydrophilic coatings on different sides or regions of the filter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing air filters are used in harsh environmental conditions (heavy fog, dust/sand storms), then the filter can remove particulate, but the filter becomes inadequate and requires frequent replacement
Solution Approach 1:
The patent applies plasma treatment to change the surface parameters of the filter media, creating a hydrophobic coating that repels moisture. This parameter change in surface properties allows the filter to maintain its filtration effectiveness in harsh conditions without requiring frequent replacement, thereby resolving the contradiction between reliability and service life.
Solution Approach 2:
The patent creates a composite structure by combining the original filter media with a plasma-derived hydrophobic coating layer. This composite material combines the particulate removal capability of the filter media with the moisture-repelling properties of the plasma coating, enabling the filter to perform reliably in harsh environmental conditions while extending its service life.
2Reliability
If the filter is treated with plasma coating, then moisture barrier and wear resistance are improved, but the manufacturing process becomes more complex
Solution Approach 1:
The plasma treatment is applied as a preliminary step to the filter media before the filter is installed in the gas turbine engine. By performing the plasma coating treatment in advance, the filter is pre-equipped with moisture barrier and wear resistance properties, eliminating the need for complex in-situ treatments or additional maintenance procedures, thus resolving the contradiction between reliability improvement and process complexity.
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 plasma-treated filters effectively reduce moisture ingress, improve strength, wear resistance, and corrosion resistance, thereby preventing operational issues and extending the filter's life in adverse conditions.
Implementation Method 1
applying at least one plasma treatment coating to the turbine filter unit via the plasma treatment system
Data Source
AI summary
A method, including receiving a turbine filter unit in a plasma treatment system, wherein the turbine filter unit comprises a filter media assembled with a framework, and applying at least one plasma treatment coating to the turbine filter unit via the plasma treatment system.