ROTOR ASSEMBLY WITH SCOOP

摘要

A rotor assembly having a plurality of scoops disposed in a circumferential array, the scoops extending from an inner surface of the outer wall of the flow path along a radial distance smaller than a radial distance between the inner and outer walls of the flow path. Each of the scoops forms a closed channel from an inlet to an outlet with the inlet and outlet being axially spaced from one another, the outlet being upstream of and adjacent the annular blade path. A gas turbine engine and method of reducing tip vortices in a rotor assembly are also discussed.

主权项

1. A gas turbine engine comprising:
concentric inner and outer walls enclosing an annular flow path; a plurality of blades extending radially across the annular flow path, the blades defining an annular blade path upon rotation with an annular gap being radially defined between the annular blade path and the outer wall; and a plurality of scoops disposed in a circumferential array, the scoops extending from an inner surface of the outer wall along a radial distance smaller than a radial distance between the inner and outer walls, each of the scoops having an inlet and an opposed outlet axially spaced from one another, the outlet of each of the scoops being upstream of and adjacent the annular blade path.