Fairing for a pylon via which a turbine engine is suspended from a wing of an aircraft
View Patent ↗Disclosed is a pylon fairing for a turbine engine. The anterior portion of the pylon fair is attached to a turbine engine in a manner to absorb blows against the fan casing of the turbine engine in case of breakage of the fan blades of the turbine engine. The pylon fairing is configured with the turbine engine such that the anterior part of the pylon fairing is fastened to the engine's fan casing via a front fixing and a rear fixing. The rear fixing is affixed to the fan casing as relatively loose in order to absorb tolerances, and the front fixing is affixed to the fan casing and as flexible in at least approximately a radial direction with respect to the fan casing.
1. A fairing for a pylon, including a turbine engine, wherein:
said turbine engine comprises:
a tubular air intake surrounded by an air intake external cowl; and
a fan, supplied with air by said air intake and enclosed in a fan casing, wherein the fan casing is surrounded by an external fan cowl in aerodynamic continuity with said air intake external cowl,
wherein said pylon fairing has an anterior part, and the pylon fairing is configured with the turbine engine such that the anterior part of the pylon fairing:
is positioned facing an upper part of said fan casing,
has the at least approximate shape of an inverted channel section cut into a whistle shape,
is laterally connected to said external fan cowl through a front end that lies flush with said air intake external cowl, and
is fastened to said fan casing via a front fixing and via a rear fixing, said rear fixing is affixed to said fan casing as relatively loose in order to absorb tolerances, and said front fixing affixed to said fan casing and as flexible in at least approximately a radial direction with respect to said fan casing.
2. The fairing according to claim 1 , wherein said front fixing ( 15 . 1 ) is of the spring link or similar type.
3. The fairing according to claim 1 , wherein said front fixing ( 15 . 1 ) is a link made of a plastically or elastically deformable material.
4. The fairing according to claim 1 , wherein said front fixing comprises a sheet of sheet metal that is transverse with respect to said fan casing and with respect to said fairing anterior part, and said sheet has at least one bend between said fan casing and said fairing anterior part.
5. The fairing according to claim 1 , wherein the tubular air intake which comprises an internal wall defining, with said air intake external cowl, a chamber that is closed off, at said fan end, by an annular rear partition connecting said internal wall and said air intake external cowl, wherein said rear partition has radial flexibility.
6. The fairing according to claim 5 , wherein the radial flexibility of said front fixing and the radial flexibility of said rear partition are approximately equal.
7. The fairing according to claim 5 , wherein said rear partition is made of a plastically deformable material.
8. The fairing according to claim 4 , wherein said front fixing is secured to said fairing anterior part and comprises means to fasten the fairing anterior part to said fan casing.