The invention relates to an assembly for a turbomachine extending along an axis (X) and comprising: - a ferrule (32) configured to delimit a fan duct (5) of a flow of gas from said turbomachine, - a casing of blower (2), radially surrounding the shell (32) and delimiting with the shell (32) the fan duct (5), - a stator (6) comprising a plurality of blades (7) comprising a first blade (7a) and a second vane (7b) adjacent to the first vane (7a) delimiting between them a converging flow channel (13) configured to straighten and accelerate the flow by means of an inlet section (14a) included in a plane not perpendicular to the axis of the turbomachine and an outlet section included in a plane (14b) perpendicular to the axis (X) of the turbomachine, the first vane (7a) and the second vane (7b) each having a part downstream not streamlined forming a trailing edge. Figure for the abstract: Fig. 3
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