Safran Aircraft Engines

Clement Jarossay

Maurice Guy Judet

Clement Raphael Laroche

Guilhem Camille François Verron

Guillaume Michel Maurice Giliberti

Labyrinth seal for a turbine engine, in particular of an aircraft, including a rotor element rotating about an axis of rotation, and a stator element extending around the rotor element The rotor element includes a series of annular lips extending radially outwards and surrounded by at least one abradable element carried by the stator element. Each lip includes an inner peripheral body portion, an outer peripheral body portion and an upstream annular face for impact of an air flow during operation. At least one lip has, looking from the upstream annular face, a first annular cavity with a concave rounded cross-section on its inner peripheral body portion and a second annular cavity with a concave rounded cross-section on its outer peripheral body portion.

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Moissy-Cramayel, France

Clement Jarossay