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Compressor Stator Vane Bushings

Compressor Stator Vane Bushings

Compressor Stator Vane Bushings

Product catalog summary
Introduction
Variable stator vanes (VSV) in jet engine compressors regulate airflow and are located in the high-pressure compressor stages. These components face high pressure and temperature, which increase with modern engine performance.

Challenge
VSV bushings endure high vibration, loads, and temperatures up to 370°C (700°F), along with atmospheric oxidation. They also function as seals to prevent pressure loss, necessitating strict tolerances.

Solution
Omniseal Solutions' Meldin® 7000 polyimide is ideal for VSV applications due to its self-lubricating properties, mechanical strength, and thermo-oxidative stability. This material supports high temperatures and allows for precise tolerances, enhancing system efficiency.

Benefits
  • Self-lubricating properties enhance durability without additional lubrication systems.
  • High temperature resistance in oxidative environments improves longevity.

Specifications
  • Material: Meldin® 7021 Polyimide
  • Application Area: Compressor Variable Stator Vanes
  • Temperature: Up to 367°C (700°F)
  • Tolerances: Down to the micrometer

Conclusion
Meldin® polyimide bushings are a proven solution in aviation, qualified by several jet engine OEMs and used in commercial aircraft for decades.

About Omniseal Solutions™
Omniseal Solutions™ is a global leader in precision sealing and material solutions, with over 65 years of experience in demanding environments.
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Catalog excerpts

Compressor Stator Vane Bushings-1

Omniseal Solutions BEYOND the boundaries of possible AVIATION CASE STUDY VARIABLE STATOR VANE BUSHINGS

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Compressor Stator Vane Bushings-2

Arnaud Verger February 2022 AVIATION LOW COEFFICIENT OF FRICTION DRY RUNNING HIGH TEMPERATURE SELF LUBRICATION At different speed regimes in the jet engine, the airflow in the compressor is regulated by variable stator vanes (VSV), which are generally located at the initial stages of the high pressure compressor. This area experiences relatively high pressure and high temperature that progressively increases with modern engine performances. Due to high vibration and high loads, variable stator vane bushings are subject to considerable strain, high temperature (up to 370°C / 700°F) and atmospheric...

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Compressor Stator Vane Bushings-3

Omniseal Solutions' Meldin® 7000 polyimide is one of the very few materials with self-lubricating properties, mechanical strength and machinability that makes this solution suited for the variable stator vane application. The polyimide’s thermo-oxidative stability also allow the material to sustain the hot air environment. Additionally, tight tolerances can be achieved in order to allow good airflow restriction for improved system efficiency. This Meldin® material is a proven aviation solution, having been qualified by several jet engine OEMs and flying successfully in commercial aircraft for...

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Compressor Stator Vane Bushings-4

Design Expertise & Tailor-made Solutions for Your Critical Applications Omniseal Solutions™ is a global engineering leader with over 65 years of historical legacy, relentlessly dedicated to the design and manufacture of precision sealing and material solutions that protect critical applications in the most demanding environments and passionately driven to push Beyond the Boundaries of Possible. About the Author Arnaud Verger Market Manager - Aviation Paris, France Omniseal Solutions™ [email protected] www.omniseal-solutions.com AVIATION-ACS-309-VANE-BUSHING, © 2022 Omniseal Solutions...

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