Outlet guide vanes and turbofan with outlet guide vanes

摘要

The invention relates to a Austrittsleitgitter with an outer wall (34 '), an inner wall (36') to form an annular channel (22) and for guiding the hot gas stream and at least one guide vane (32) (between the outer wall 34 ' ) and the inner wall (36 ') is arranged, in which (between the leading edge e) of the vane (32) and the downstream end (35') 'is at least one querschnittsverringernde constriction (38)') is arranged the outer wall (34th At least one absolute constriction (38 ') in the region between the leading edge (E) and the downstream end (35') closer to the rear edge (H) of the vane (32) is arranged as the downstream end (35 ').