Thrust reverser cascade assembly with flow deflection shelf

摘要

An aircraft engine thrust reverser cascade assembly includes a plurality of circumferentially spaced cascade segments, each cascade segment including a plurality of spaced vanes, including an aft-most vane, and rails defining a series of cells or air passages therebetween. The cascade assembly also includes an aft cascade ring removably attached to the aft ends of the cascade segments. A flow deflection shelf is mounted to each of the cascade segments and includes a deflector portion that at least partially extends forward of a group of cells of the cascade segments along which the flow deflection shelf is mounted. The deflector portion is configured to at least partially redirect at least a portion of a volume of air forwardly as the air outwardly passes through the group of cells of the cascade segments.

主权项

1. An aircraft engine thrust reverser cascade assembly comprising:
(a) a plurality of circumferentially spaced cascade segments, each cascade segment including a forward end, an aft end, and a plurality of ribs and spaced vanes defining a series of air passages therebetween, and with the vanes including an aft-most vane; and (b) a flow deflection shelf mounted along the aft end of each cascade segment, the flow deflection shelf mounted substantially perpendicular to the aft most vanes and configured to at least partially redirect at least a portion of air passing through each cascade segment forwardly as the air passes outwardly between aft-most vanes and the aft end of each cascade segment; and (c) an aft cascade ring comprising a body portion and a deflection portion, the body portion attached to each cascade segment and the deflection portion position to form an angle of less than ninety degrees relative to the flow deflection.