Turbomachine having an improved oil-recovery device

A turbomachine comprising first and second internal members which are movable in rotation relative to each other about an axis X, and at least one guide bearing mounted between respective first and second tubular walls of axis X of the first and second members,

• the first member comprising a third wall transverse to the axis X,
• the second member comprising a fourth wall transverse to the axis X surrounded by said third wall,
• said third and fourth walls separating two enclosures, respectively, a first enclosure configured to lubricate the bearing, and a second enclosure,
• the fourth wall being bordered by an outer shell of the second member, and the third wall being bordered by an inner shell of the first member, the inner shell surrounding the outer shell and said inner and outer shells delimiting an interface area between said enclosures,
• said turbomachine further comprising an oil-recovery device comprising a tubular tab which extends the first tubular wall of the first member and which extends axially inside one end of the outer shell of the second member the tab being configured to conduct oil to be projected successively from the tab to the outer shell of the second member, and then from the outer shell of the second member to the third wall,
• said inner shell of the second member being extended by a tubular extension which surrounds the outside of the tubular tab axially beyond one end of the inner shell of the first member, and wherein is formed an outer concave groove facing away from the tubular tab,
• wherein the extension surrounds the outside of the tubular tab axially beyond an axial half-length of said tubular tab, has an inner diameter equal to an inner diameter of the outer shell of the second member and an outer diameter less than or equal to an outer diameter of the outer shell, and an annular groove of the second member is rectangular in cross-section.