IP Library › Granted Patent US 12,037,914
Granted Patent B1
US 12,037,914 · App. 18/202,754 · Granted Jul 16, 2024

Phonic wheel for turbine engine bearing compartment

Inventor: Joseph B. Phelps (Rocky Hill, CT)
Assignee: RTX CORPORATION
F01D21/003F02C7/06G01P3/481F05D2270/304F05D2270/80
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Quick Facts
Patent No.
US 12,037,914
App. No.
18/202,754
Granted
Jul 16, 2024
Kind
B1
Abstract

An assembly is provided for a turbine engine. This turbine engine assembly includes a rotating assembly and a sensor. The rotating assembly is configured to rotate about an axis. The rotating assembly includes an engine shaft, a phonic wheel and a lubricant scoop. The phonic wheel is mounted onto the engine shaft. The phonic wheel includes an outer surface and a plurality of apertures arranged circumferentially about the axis. Each of the apertures projects at least partially radially into the phonic wheel from the outer surface. The lubricant scoop is radially outboard of and axially overlaps the outer surface. The sensor is configured to measure fluctuations in a magnetic field induced by the phonic wheel during rotation of the rotating assembly about the axis.

Claims (57)

1. An assembly for a turbine engine, comprising:

a rotating assembly configured to rotate about an axis, the rotating assembly including an engine shaft, a phonic wheel and a lubricant scoop;

the phonic wheel mounted onto the engine shaft, the phonic wheel including an outer surface and a plurality of apertures arranged circumferentially about the axis, and each of the plurality of apertures projecting at least partially radially into the phonic wheel from the outer surface; and

the lubricant scoop radially outboard of and axially overlapping the outer surface; and

a sensor configured to measure fluctuations in a magnetic field induced by the phonic wheel during rotation of the rotating assembly about the axis.

2. The assembly of claim 1 , further comprising:

a sensor system comprising the phonic wheel and the sensor;

the sensor system configured to determine a rotational velocity of the rotating assembly.

3. The assembly of claim 1 , wherein

the plurality of apertures provide the outer surface with a castellated region; and

the castellated region is configured to induce the fluctuations in the magnetic field during the rotation of the rotating assembly about the axis.

4. The assembly of claim 3 , wherein a tip of the sensor is disposed radially outboard of and adjacent the castellated region.

5. The assembly of claim 1 , wherein the outer surface is a cylindrical outer surface.

6. The assembly of claim 1 , wherein

each of the plurality of apertures has a lateral width; and

each circumferentially neighboring pair of the plurality of apertures are spaced apart by a lateral distance that is equal to or less than the lateral width.

7. The assembly of claim 1 , wherein a first of the plurality of apertures comprises an indentation.

8. The assembly of claim 1 , wherein a first of the plurality of apertures comprises a through-hole.

9. The assembly of claim 1 , wherein

the lubricant scoop comprises an axial lubricant scoop; and

the plurality of apertures form a radial lubricant scoop in the phonic wheel.

10. The assembly of claim 1 , wherein

the phonic wheel further includes a channel and a plurality of passages;

each of the plurality of apertures extends radially through the phonic wheel from the outer surface to the channel;

the channel is disposed at a radial inner side of the phonic wheel and fluidly couples the plurality of apertures to the plurality of passages; and

the plurality of passages are arranged circumferentially about the axis, and each of the plurality of passages extends radially out from the channel and through the phonic wheel.

11. The assembly of claim 1 , wherein

the rotating assembly further includes a scoop body mounted with the engine shaft, and the scoop body comprises the lubricant scoop; and

the lubricant scoop comprises a gutter disposed at a radial inner side of the scoop body, and the gutter axially overlaps and is disposed radially opposite the outer surface.

12. The assembly of claim 11 , wherein the scoop body is threaded onto the engine shaft.

13. The assembly of claim 11 , wherein the engine shaft comprises a plurality of passages arranged circumferentially about the axis, and each of the plurality of passages extends axially into the engine shaft from the gutter.

14. The assembly of claim 13 , wherein

the engine shaft further comprises a shoulder;

each of the plurality of passages extends axially through the shoulder; and

the scoop body is mounted onto the shoulder.

15. The assembly of claim 1 , wherein

the rotating assembly further includes a scoop body mounted onto the engine shaft, the scoop body comprises the lubricant scoop, and the scoop body is axially abutted against an engagement surface of the engine shaft; and

the phonic wheel is axially abutted against the engagement surface of the engine shaft.

16. The assembly of claim 1 , wherein the rotating assembly further comprises a bladed rotor connected to the engine shaft.

17. An assembly for a turbine engine, comprising:

a rotating assembly configured to rotate about an axis, the rotating assembly including an engine shaft, a phonic wheel and a lubricant scoop integrated into the phonic wheel;

the phonic wheel mounted onto the engine shaft, the phonic wheel including a plurality of apertures and an annular channel fluidly coupled with the plurality of apertures;

the plurality of apertures arranged circumferentially about the axis and forming the lubricant scoop and a castellated region of the phonic wheel, each of the plurality of apertures extending radially through the phonic wheel to the annular channel; and

the annular channel disposed at a radial inner side of the phonic wheel; and

a sensor configured to measure fluctuations in a magnetic field induced by the castellated region of the phonic wheel during rotation of the rotating assembly about the axis.

18. The assembly of claim 17 , wherein

the phonic wheel further includes a plurality of passages arranged circumferentially about the axis, and each of the plurality of passages extends radially through the phonic wheel to the annular channel; and

the annular channel fluidly couples the plurality of apertures to the plurality of passages.

19. The assembly of claim 17 , wherein

the lubricant scoop comprises a radial lubricant scoop;

the rotating assembly further includes an axial lubricant scoop radially outboard of and axially overlapping the phonic wheel; and

a lubricant collection area is formed by and radially between the phonic wheel and the axial lubricant scoop.

20. An assembly for a turbine engine, comprising:

a rotating assembly configured to rotate about an axis, the rotating assembly including an engine shaft, a phonic wheel and a lubricant scoop;

the phonic wheel mounted onto the engine shaft, the phonic wheel including a plurality of apertures arranged circumferentially about the axis, the plurality of apertures providing the phonic wheel with a castellated region, and each of the plurality of apertures extending radially through the phonic wheel; and

the lubricant scoop radially outboard of and axially overlapping the phonic wheel; and

a sensor configured to measure fluctuations in a magnetic field induced by the castellated region of the phonic wheel during rotation of the rotating assembly about the axis.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 21, 2024
From: PHELPS, JOSEPH B.
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 066857/0374 →
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064402/0837 →