Wspólnotowy Serwis Informacyjny Badan i Rozwoju - CORDIS

High temperature test rig for compressor casings

New developed coatings such as abradables have to be tested before their applications in engines. At MTU a specially designed rub in rig is used to test these new abradables under nearly realistic conditions. However, the test temperature of this worldwide unique rub in rig was limited to a maximum temperature of 650°C. Because engine performance will be improved upon other terms by increasing the pressure ratio higher temperatures occur in compressors. Thus, higher test temperatures up to 750°C are required for MTU´s test rig. To meet this requirement from the design the existing rub in rig was modified with a new heating system, clamping elements for discs as well as for casings and with a new unit to control the heating system. Through this upgrade MTU got the ability to test abradables for future applications for themselves as well as for customers.

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Coatings for Blades and Casings
Dachauer Strasse 665
80995 Munich
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