Lubricating a rotating component during forward and/or reverse rotation
An assembly is provided for a turbine engine. This turbine engine assembly includes a rotating component, a turbine engine component and a lubrication system. The lubrication system is adapted to lubricate the turbine engine component where the rotating component rotates a first direction about an axis. The lubrication system is also adapted to lubricate the turbine engine component where the rotating component rotates a second direction about the axis.
1. An assembly for a rotational system that includes a rotating component, the assembly comprising:
a bearing adapted to support the rotating component; and
a lubrication system adapted to lubricate the bearing where the rotating component rotates a first direction about an axis, and adapted to lubricate the bearing where the rotating component rotates a second direction about the axis;
wherein the lubrication system comprises
a first pump adapted to direct lubricant to the bearing where the rotating component rotates the first direction; and
a second pump adapted to direct lubricant to the bearing where the rotating component rotates the second direction;
wherein the first pump is adapted to direct lubricant to the second pump where the rotating component rotates the first direction.
2. The assembly of claim 1 , wherein the second pump is adapted to direct lubricant to the first pump where the rotating component rotates the second direction.
3. The assembly of claim 1 , wherein the lubrication system comprises
a first lubricant reservoir fluidly coupled with the first pump; and
a second lubrication reservoir fluidly coupled with the second pump.
4. The assembly of claim 1 , wherein
the first pump is adapted to be driven by torque from a shaft of the rotational system; and
the second pump is adapted to be driven by the torque from the shaft of the rotational system.
5. The assembly of claim 1 , wherein the bearing comprises a journal bearing.
6. The assembly of claim 1 , further comprising:
a fan rotor;
a compressor rotor; and
a gear train connected between the fan rotor and the compressor rotor, the gear train including the bearing.
7. The assembly of claim 1 , wherein the rotational system comprises a turbine engine.
8. An assembly for a rotational system that includes a rotating component, the assembly comprising:
a bearing adapted to support the rotating component; and
a lubrication system adapted to lubricate the bearing where the rotating component rotates a first direction about an axis, and adapted to lubricate the bearing where the rotating component rotates a second direction about the axis;
wherein the lubrication system comprises
a first lubrication circuit adapted to direct lubricant to the bearing where the rotating component rotates the first direction; and
a second lubrication circuit adapted to direct lubricant to the bearing, independent of the first lubricant circuit, where the rotating component rotates the second direction.
9. The assembly of claim 8 , wherein
the first lubrication circuit comprises a first pump; and
the second lubrication circuit comprises a second pump.
10. The assembly of claim 9 , wherein the first lubrication circuit is adapted to lubricate the first pump where the rotating component rotates the first direction.
11. The assembly of claim 10 , wherein the second lubricant circuit is adapted to lubricate the second pump where the rotating component rotates the second direction.
12. The assembly of claim 8 , further comprising:
a fan rotor;
a compressor rotor; and
a gear train connected between the fan rotor and the compressor rotor, the gear train including the bearing.
13. The assembly of claim 8 , wherein the rotational system comprises a turbine engine.
14. The assembly of claim 8 , wherein the bearing comprises a journal bearing.
15. A method involving a bearing and a rotating component of a turbine engine, the method comprising:
lubricating the bearing where the rotating component rotates a reverse direction about an axis;
wherein the bearing supports the rotating component, and the rotating component is operable to rotate a forward direction and the reverse direction about the axis; and
wherein the rotating component rotates the reverse direction where a rotor of the turbine engine is windmilling.
16. The method of claim 15 , further comprising lubricating the bearing where the rotating component rotates the forward direction about the axis.
17. The method of claim 15 , wherein the lubricating of the bearing comprises directing lubricant to the bearing using a pump driven by torque from a shaft of the turbine engine.
18. The method of claim 15 , wherein the bearing comprises a journal bearing.