Root of an aircraft engine compressor blade

摘要

Compressor blade footing comprising a fiber composite core (4) with a metallic sleeve (5) is held in a recess (9) in a compressor disk (10). The fibers in the fiber composite core are tightly packed so that the pressure loads on the blade edge (2) act directly on the fibers. To introduce force into the sleeve via its microstructurally enlarged inner side (7), the fiber composite core is connected to the inside of the sleeve. To reduce the bending stress of the fiber composite core, the blade foot (3) is mounted in the recess of the compressor disk in an oscillating and friction-dampened manner in a limited angle region. Preferred Features: The fiber composite core consists of carbon fibers in a plastic matrix.