Outlet guide vanes and turbofan with outlet guide vanes

摘要

The invention relates to an outlet guide with an outer wall (34 '), an inner wall (36') for forming an annular channel (22) and for guiding the hot gas flow and at least one vane (32) between the outer wall (34 '). ) and the inner wall (36 ') is arranged, wherein between the leading edge (E) of the vane (32) and the downstream end (35') of the outer wall (34 ') at least one cross-section reducing constriction (38') is arranged. At least one absolute constriction (38 ') in the region between the leading edge (E) and the downstream end (35') is located closer to the trailing edge (H) of the vane (32) than to the downstream end (35 ').