Aircraft Hanger High Purity Nitrogen Generation Servicing System

The Aircraft Hangar High Purity Nitrogen Generation Servicing System, developed by Hydraulics International, Inc. (HII), is a state-of-the-art, self-contained unit designed to produce and supply high-purity gaseous nitrogen for various aircraft maintenance applications. This system ensures a consistent and reliable source of nitrogen, eliminating the dependency on external gas cylinders and enhancing operational efficiency within aircraft hangars.​

Technical Details:

1. Nitrogen Production:

   • Purity Level: The system generates nitrogen gas with a purity of 99.5% or higher, meeting the stringent requirements for aircraft servicing operations.

   • Flow Rate: Capable of delivering nitrogen at a flow rate of 30 Standard Cubic Feet per Minute (SCFM), ensuring rapid servicing and reduced downtime.​

   • Pressure Output: Provides nitrogen at pressures up to 5,000 Pounds per Square Inch Gauge (psig), suitable for both low and high-pressure aircraft systems.​

2. Design and Configuration:

   • Self-Contained Unit: The system is enclosed and skid-mounted (electric-driven) or trailer-mounted (diesel-driven), facilitating mobility and ease of integration within hangar environments.​

   • Power Options: Available in both electric-driven (Part Number: 130010-100) and diesel engine-driven (Part Number: 130009-100) configurations, offering flexibility based on facility infrastructure and operational preferences.

3. Operational Features:

   • Automated Control: Equipped with a Programmable Logic Controller (PLC) that automates nitrogen generation and filling processes, minimizing the need for manual intervention.​

   • Purity Monitoring: Features an on-board nitrogen purity analyzer that continuously monitors and calibrates nitrogen purity levels, ensuring compliance with specified standards.​

   • User Interface: Incorporates a Human-Machine Interface (HMI) touch screen, providing real-time operational data, maintenance diagnostics, fault logs, and troubleshooting aids.

4. Compressor and Booster System:

   • Oil-Free Design: Utilizes 100% oil-less feed and high-pressure air compressors, eliminating the need for oil separators and extending the lifespan of nitrogen separation membranes.​

   • Pressure Boosting: Includes integrated pressure boosters to achieve the desired high-pressure nitrogen output, ensuring efficient servicing of aircraft systems.​

5. Safety and Maintenance:

   • Diagnostic Features: The system provides full operation and maintenance diagnostics via the HMI, facilitating proactive maintenance and reducing potential downtime.​

   • Environmental Considerations: Designed with an oil-free compressor system, the unit minimizes environmental impact and reduces maintenance requirements associated with oil management.​

Applications:

• Aircraft Tire Inflation: Supplies nitrogen at controlled pressures (0-400 psig) for safe and efficient inflation of aircraft tires, enhancing tire lifespan and performance.

• Hydraulic Accumulator Charging: Delivers high-pressure nitrogen (up to 5,000 psig) for charging aircraft hydraulic accumulators, ensuring proper hydraulic system functionality.

• Strut Servicing: Provides the necessary nitrogen pressure for servicing aircraft landing gear struts, maintaining optimal shock absorption and structural integrity.​

• On-Board Storage Filling: Capable of filling on-board nitrogen storage bottles to 5,000 psig with 99.5% pure nitrogen in less than 45 minutes at ambient temperature, ensuring readiness for flight operations.​

Technical Specifications Table:

By integrating the Aircraft Hangar High Purity Nitrogen Generation Servicing System into maintenance operations, aviation facilities can achieve greater autonomy, efficiency, and safety in nitrogen servicing tasks, ensuring aircraft systems are maintained to the highest standards.