Turbomachine comprising an outlet cone incorporating components cooled by circulation of a cooling flow

A double-flow turbomachine comprising:

• an exhaust casing through which a hot primary flow passes and surrounded by a cold secondary flow, and
• a cone carried by the exhaust casing,
• the exhaust casing having a hollow radial arm passing through the primary flow to convey a cooling flow to cool a component located in the cone,
• the cone having an outer wall and an inner wall which runs alongside the outer wall and is radially spaced therefrom to delimit a thermal insulation space through which the cooling flow passes from upstream to downstream before the cooling flow is discharged through an outlet opening at an end of the cone,
• wherein the turbomachine has a cover surrounding the component to channel the cooling flow so that the cooling flow runs along an outside of the component to cool the component before passing through an entirety of the thermal insulation space from upstream to downstream prior to being discharged.