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AssigneeSnecma
InventorsPhilippe Bouiller, Stephane Rousselin
Estimating the term…
The invention relates to a two-spool bypass turbojet comprising a low-pressure spool having a rear portion carrying a low-pressure turbine provided with a low-pressure rotor, said turbojet including a support structure connected to a casing and to a rear bearing in which said rotor is mounted, the bearing being situated in an enclosure including liquid lubricant feed means, said enclosure being put to atmospheric pressure via an air feed pipe connected to said enclosure via link means. In characteristic manner, said turbojet further comprises an electricity generator connected to the rear end of said low-pressure that extends downstream from said link means, which link means are secured to said rotor and include means for guiding the liquid lubricant from said feed means to said bearing.
A two-spool bypass turbojet comprising a low-pressure spool having, at its rear end, a low-pressure turbine provided with a low-pressure rotor, said turbojet including a support structure connected to a casing and to a rear bearing on which said rotor is mounted, said rear bearing being situated in an enclosure having means for feeding said bearing with liquid lubricant, said enclosure being put to atmospheric pressure by an air feed pipe coaxial with said rotor and connected to said enclosure via link means proving gas communication between said enclosure and said air feed pipe while guaranteeing sealing against liquid lubricant from said enclosure, the turbojet further comprising an electricity generator coaxial with said spool and situated outside said enclosure, said generator being disposed and being connected to the rear end of said low-pressure rotor which extends downstream from said link means, said link means being secured to said rotor and including guide means for guiding the liquid lubricant between said feed means and said bearing.
An air flow link device comprising a radial chimney for passing air, the chimney presenting a duct with an inlet close to an axis of rotation and an outlet spaced apart from the axis of rotation, and a guide wall for a liquid lubricant, the guide wall extending axially around the chimney and being spaced apart from the inlet and the outlet of the duct, the face of the guide all that faces towards the inlet of the duct being inclined relative to the duct so as to act, under the centrifugal effect during rotation of the device about the axis, to direct the flow of liquid between an upstream end and a downstream end of the guide wall, with said device occupying an angular sector defined in a direction extending transversely relative to the axial direction.
Dependencies are inferred from the claim text.