Lubricating oil distributor for a mechanical reduction gear of aircraft turbine engine
A lubricating oil distributor for a turbine engine mechanical reduction gear, for example of an aircraft, has an annular shape about an axis X and is formed of one single part. The distributor includes first and second independent oil circuits, the first oil circuit having a first oil inlet connected by a first annular chamber to several oil outlets distributed over a first circumference C 1 about the axis X, and the second oil circuit having a second oil inlet connected by a second annular chamber to several oil outlets distributed over a second circumference C 2 about the axis X, the first and second circumferences having different diameters.
1. A lubricating oil distributor for a turbine engine mechanical reduction gear having an annular shape about an axis (X) and being formed of one single part, the lubricating oil distributor comprising: a first and a second independent oil circuit, the first independent oil circuit having a first oil inlet connected by a first annular chamber to several oil outlets distributed over a first circumference (C 1 ) about the axis (X), and the second independent oil circuit having a second oil inlet connected by a second annular chamber to several oil outlets distributed over a second circumference (C 2 ) about the axis (X), the first and second circumferences having different diameters,
wherein the first and second chambers are formed by two coaxial and closely linked tubular rings wherein a diameter of the first circumference (C 1 ) is less than a plurality of ring diameters of the closely linked tubular rings, and wherein a diameter of the second circumference (C 2 ) is greater than the plurality of ring diameters.
2. The lubricating distributor according to claim 1 , wherein the first and second inlets are oriented in a radial direction with respect to the axis (X).
3. The lubricating distributor according to claim 1 , wherein the first and second inlets are situated in a plane perpendicular to the axis (X) and are inclined against one another by a determined angle (a).
4. The lubricating distributor according to claim 1 , wherein the first and second chambers have, in an axial cross-section, a circular shape.
5. The lubricating distributor according to claim 1 , wherein the several oil outlets distributed over the second circumference are oriented axially in a same direction.
6. The lubricating distributor according to claim 1 , further comprising fixing pads having orifices for passages of screws.
7. A planet-carrier for a turbine engine mechanical reduction gear, the planet-carrier comprising:
a cage defining a housing for receiving a central sun gear of axis (X) of rotation and of planet gears arranged around the sun gear; and
a lubricating distributor according to claim 1 , being fixed on the cage.
8. The planet-carrier according to claim 7 , wherein the cage comprises at its periphery housings configured to receive axial fingers integral with the planet-carrier of the reduction gear, each housing being passed through by a radial pin which is configured to guide in rotation a connecting means carried by one of the fingers, the first and second inlets of the distributor being oriented respectively according to a first direction and a second direction which each pass through a free space sector (S) delimited axially by the cage and the cage-carrier and extending circumferentially between two adjacent fingers.
9. A lubricating oil distributor for a turbine engine mechanical reduction gear having an annular shape about an axis (X) and being formed of one single part, the lubricating oil distributor comprising: a first and a second independent oil circuit, the first independent oil circuit having a first oil inlet connected by a first annular chamber to several oil outlets distributed over a first circumference (C 1 ) about the axis (X), and the second independent oil circuit having a second oil inlet connected by a second annular chamber to several oil outlets distributed over a second circumference (C 2 ) about the axis (X), the first and second circumferences having different diameters, wherein the first and second chambers have, in an axial cross-section, a circular shape.
10. A lubricating oil distributor for a turbine engine mechanical reduction gear having an annular shape about an axis (X) and being formed of one single part, the lubricating oil distributor comprising: a first and a second independent oil circuit, the first independent oil circuit having a first oil inlet connected by a first annular chamber to several oil outlets distributed over a first circumference (C 1 ) about the axis (X), and the second independent oil circuit having a second oil inlet connected by a second annular chamber to several oil outlets distributed over a second circumference (C 2 ) about the axis (X), the first and second circumferences having different diameters, wherein the first and second chambers are formed by two coaxial and closely linked tubular rings.