Patent ID: 8136362

Claim:
A fan duct for a turbomachine, comprising: an internal cylindrical wall; and an external cylindrical wall coaxial with the internal cylindrical wall, the internal and external cylindrical walls are intended to be attached at a first end to an intermediate case of the turbomachine and to be connected at a second end to an exhaust case of the turbomachine, wherein, to make it easier to mount the duct and allow access to equipment mounted on the spool of the turbomachine, the internal cylindrical wall is made up of first removable panels attached to a framework comprising an upstream annular structure, a downstream annular structure and longitudinal elements connecting said upstream and downstream annular structures, wherein the external cylindrical wall comprises openings closed by second panels attached removably to a single support structure, these openings having dimensions that allow said first removable panels of the internal wall through and which allow said first removable panels to be mounted on and removed from the framework of the internal wall, wherein the support structure of the external wall comprises an upstream ring and a downstream ring which are rigidly connected by longitudinal members defining the aforementioned openings between them, and wherein the internal cylindrical wall includes a downstream frustoconical cowling, an upstream end of the cowling is attached to the downstream annular structure of the framework and a downstream end of the cowling includes radial cutouts.