First C919 bleed air system delivered by Liebherr

Liebherr-Aerospace has delivered the first bleed air system to Chinese aircraft manufacturer COMAC for the C919 single-aisle aircraft family.

Liebherr was selected in 2010 to develop, manufacture, qualify and certify the integrated air management system for the aircraft. The system, which consists of bleed valves, a pre-cooler, a heat exchanger, high-pressure ducting and corresponding pressure and temperature sensors connected with a bleed monitoring controller, will be used for test-driven development of the CFM LEAP-1C engine.

These components were designed to withstand thermal and mechanical requirements of the new-generation engine. Measuring equipment has been fitted on the parts to provide COMAC and Liebherr-Aerospace with information on the behaviour of the bleed air system during the engine tests.

The next step for Liebherr-Aerospace will be the delivery of additional components for the engine ground and vibration test benches to prepare the flight test campaign of the C919.

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