Particle-trapping device for a turbomachine and turbomachine with such a device
AssigneeSafran Helicopter Engines
InventorsAmaury Paillard, Stephane Pascaud
Life of this patent
Estimating the term…
Abstract
The invention relates to a particle-trapping device (2) for a turbomachine, said particles being contained in an air stream flowing inside a turbomachine, in particular the air stream flowing in the bypass region (17) of the combustion chamber (13) of said turbomachine. The device is characterized in that it comprises: —at least two particle deflectors (3, 3a, 3b, 3c), —a member (5) for collecting and storing the particles deflected by said deflector, —and means (6) for attaching said trapping device (2) to a part of the turbomachine.
Claims9
A turbomachine comprising a combustion chamber and a bypass area provided between a wall of said combustion chamber and an outer casing of said turbomachine, wherein the turbomachine is equipped with a particle-trapping device disposed inside said bypass area, said particle-trapping device comprising:
- at least two particle deflectors for deflecting grains of sand or dust particles, contained in an air flow circulating inside the bypass area of the combustion chamber of said turbomachine,
- at least one support frame,
- an element for collecting and storing particles deflected by the at least two particle deflectors,
- means for attaching said trapping device on a portion of the turbomachine,
- said particle deflectors having an annular shape and being attached to the at least one support frame so as to be coaxial, to be radially aligned and to be spaced radially from one another or from each other, said deflectors being inclined in the same direction with respect to their axes of revolution (X-X′) so as to be turned toward said element for collecting and storing particles.
The turbomachine according to wherein it comprises three deflectors.
Dependencies are inferred from the claim text.