Oil scoop manifold

• US 9,441,541 B2
• Filed: 03/11/2013
• Issued: 09/13/2016
• Est. Priority Date: 04/27/2012
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Wotzak, Mark Gregory
• Primary Examiner(s): SUNG, GERALD LUTHER
• Application Number:
  US13/793,266
• Publication Number:
  US 20130283758A1
• Time in Patent Office: 1,282 Days
• US Class Current: 1/1
• CPC Class Codes: F01D 25/18 Lubricating arrangements of machines or engines in general F01M
• CPC Class Codes: F02C 7/06 Arrangements of bearings bearings F16C; Lubricating of turbo machines F01D25/18; of machines or engines in general F01M
• CPC Class Codes: F16C 19/06 with a single row or balls
• CPC Class Codes: F16C 19/26 with a single row of rollers
• CPC Class Codes: F16C 19/54 Systems consisting of a plurality of bearings with rolling friction spindle bearings F16C35/08
• CPC Class Codes: F16C 2360/23 Gas turbine engines in general F02C
• CPC Class Codes: F16C 33/58 Raceways; Race rings
• CPC Class Codes: F16C 33/583 Details of specific parts of races
• CPC Class Codes: F16C 33/6674 related to the amount supplied, e.g. gaps to restrict flow of the liquid
• CPC Class Codes: F16C 33/6677 from radial inside, e.g. via a passage through the shaft and/or inner ring
• CPC Class Codes: F16C 35/073 between shaft and inner race ring
• CPC Class Codes: F16N 2210/14 Bearings
• CPC Class Codes: Y02T 50/60 Efficient propulsion technologies, e.g. for aircraft

Abstract

The present disclosure involves an oil scoop manifold receives and directs the oil in fore and aft directions to lubricate multiple bearing assemblies.

Claims

1. An oil scoop manifold, comprising:

a first cylindrical landing and a second cylindrical landing spaced from said first cylindrical landing, both said first landing and said second landing being hollow cylindrical structures with an interior surface and an exterior surface;

a plurality of oil scoops aligned in a single circumferential row disposed between said first landing and said second landing;

at least one reservoir in fluid communication with said plurality of oil scoops;

a plurality of axial slots extending from said at least one reservoir in aft and forward directions along the interior surface of said first landing and said second landing;

radial holes associated with said plurality of axial slots, said radial holes allowing movement of oil from said plurality of axial slots from the interior surface of said first landing toward the exterior surface of said first landing, or from the interior surface of said second landing toward the exterior surface of said second landing.

2. The oil scoop manifold of claim 1, said plurality of axial slots having at least two differing lengths.

3. The oil scoop manifold of claim 2, said radial holes being offset from one another in a circumferential direction.

4. The oil scoop manifold of claim 1, said axial slots being of equivalent length.

5. The oil scoop manifold of claim 4, said axial slots extending to ends of said first and second cylindrical landings.

6. The oil scoop manifold of claim 4, said radial holes disposed at varying axial positions of said slots.

7. The oil scoop manifold of claim 1, further comprising bearing seats extending circumferentially about outer surfaces of said first cylindrical landing and said second cylindrical landing.

8. The oil scoop manifold of claim 1, said scoop defined by a first wall and a second wall.

9. The oil scoop manifold of claim 8, further comprising a lower surface passing between said first wall and said second wall.

10. The oil scoop manifold of claim 9, further comprising a pathway in said lower surface passing through toward an inner surface of said first landing or said second landing.

11. The oil scoop manifold of claim 8, further comprising an angled lower surface passing between said first wall and said second wall.

12. The oil scoop manifold of claim 1, further comprising at least one aft wier disposed between said reservoir and said axial slots.

13. The oil scoop manifold of claim 12, said at least one aft wier in fluid communication with some of said axial slots.

14. The oil scoop manifold of claim 12, further comprising at least one forward wier disposed between said reservoir and said axial slots.

15. The oil scoop manifold of claim 14, said at least one forward wier in fluid communication with some of said axial slots.

16. The oil scoop manifold of claim 1, said radial holes being angled.

17. An oil scoop manifold, comprising:

a first wall and a second wall defining a single circumferential row having at least one reservoir and having at least one scoop therein;

first and second landings extending axially from said first and second walls, both said first landing and said second landing being hollow cylindrical structures with an interior surface and an exterior surface;

a weir in fluid communication with said reservoir;

axial slots extending forward and aft along inner surfaces of said landings in flow communication with said weir;

radial holes in fluid communication with said axial slots extending from the interior surface toward the exterior surface of said first and second landings;

said radial holes located at varying distances from said first and second wall.

18. The oil scoop manifold of claim 17, said weir extending circumferentially along said inner surfaces of said landings.

19. The oil scoop manifold of claim 17, said axial slots being at least one of a first axial length and a second axial length.

20. An oil scoop manifold, comprising:

a first cylindrical landing and a second cylindrical landing separated by a scoop and reservoir, both said first landing and said second landing being hollow cylindrical structures with an interior surface and an exterior surface, said scoop and reservoir being aligned in a single circumferential row;

said reservoir in fluid communication with a weir extending circumferentially along the inner surface of said landings;

a plurality of axial slots in flow communication with said weir, said plurality of axial slots extending fore and aft along the interior surface of said first landing and said second landing;

said axial slots each having radial holes for delivery of oil from said slots through an outer surface of said landings;

a plurality of radial holes located along said axial slots allowing oil to pass through said first and second cylindrical landings from the interior surface toward the exterior surface of said first and second landings.