Patent ID: 6499285
Filing Date: 2002-12-31
Classification: B64D,F02C

Abstract:
A particle separator for a gas turbine engine, the particle separator comprising:a housing that defines an axis and is adapted to be coupled to the engine, the housing defining an annular first flow passage positioned concentrically about the axis, an annular first opening positioned concentrically about the axis, and an annular second flow passage positioned concentrically about the axis in fluid communication with the first flow passage through the first opening, a plurality of first vanes coupled to the housing and spaced circumferentially about the axis in the first flow passage, the first vanes being configured and positioned to impart a velocity to a stream of air flowing through the first flow passage and a different velocity to particles entrained in the stream of air as the stream of air flows past the first vanes, and a rotor including a plurality of blades, positioned in the first flow passage downstream of the first vanes and adjacent the first opening and a blade support, the blades being coupled to the blade support for rotation of the blades about the axis in response to the stream of air flowing past the blades downstream of the first vanes to allow the blades to deflect particles entrained in the stream of air from the first flow passage through the first opening into the second flow passage.