Variable jet engine outlet with a mainly circle sector-formed cross section

摘要

The present invention relates to a low signature jet engine outlet comprising movable border segments forming at least one circular arc and being movable radially for controlling the form and area of the outlet, at least one stationary border element for defining the form and area of the outlet, and movable coupling means for connecting the at least one circular arc to the at least one stationary border element. The coupling means are movable along a connection part of the at least one stationary border element, and the connection part of the at least one stationary border element is substantially flat and extending in a substantially radial direction of the at least one circular arc.

主权项

1. A jet engine outlet (1) comprising:
movable border segments (3) forming at least one substantially part-circular arc (29) and being movable radially for controlling the form and area of the outlet (1); at least one stationary border element (27) for defining the form and area of the outlet (1); and at least one movable coupling (31) for connecting the at least one substantially part-circular arc (29) to the at least one stationary border element (27), wherein:
the at least one substantially part-circular arc is centered about at least one arc centerline that is proximate to an engine centerline;the at least one movable coupling (31) is movable along a connection part (45) of the at least one stationary border element (27); andthe connection part (45) of the at least one stationary border element (27) is substantially flat and extending in a substantially radial direction of the at least one substantially part-circular arc (29); andthe at least one stationary border element and the at least one substantially part-circular arc together form a non-circular outlet shape at a cross-section through an axial plane of the outlet.