Rolling element bearing configured with a gutter and one or more fluid passages

Patent metadata

Field	Value
Publication number	US-10174635-B2
Application number	US-201414769049-A
Country	US
Kind code	B2
Filing date	Feb 20, 2014
Priority date	Feb 20, 2013
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

A rolling element bearing includes a plurality of rolling elements that are arranged circumferentially around an axis, and radially between a bearing inner ring and a bearing outer ring. The inner ring extends axially between a first end and a second end, and includes a plurality of passages that are fluidly coupled with a channel. The passages are arranged circumferentially around the axis. The channel extends axially into the inner ring from the second end, and includes a gutter that extends radially into and axially within the inner ring.

First claim

What is claimed is:

1. A rolling element bearing, comprising:
a plurality of rolling elements arranged circumferentially around an axis, and radially between a bearing inner ring and a bearing outer ring;
the inner ring extending axially between a first end and a second end, and the inner ring including an annular first channel, an annular second channel and a plurality of passages;
the passages arranged circumferentially around the axis, a first of the passages comprising a slot that extends axially through the inner ring from the annular second channel to the annular first channel;
the annular first channel extending axially into the inner ring from the second end, and the annular first channel including a gutter that extends radially into and axially within the inner ring; and
the annular second channel extending axially within and radially into the inner ring.

2. The bearing of claim 1 , wherein
the annular first channel further includes an annular notch that extends axially into the inner ring from the second end; and
the gutter comprises an annular groove that extends radially into the inner ring from the notch.

3. The bearing of claim 1 , wherein each of the passages includes a passage inlet located at the first end, and extends axially through the inner ring from the passage inlet to the annular first channel.

4. The bearing of claim 1 , wherein
the inner ring further includes an annular third channel that extends axially into the inner ring from the first end; and
the passages extend axially through the inner ring between the annular third channel and the annular first channel.

5. The bearing of claim 4 , wherein the annular third channel comprises an annular notch.

6. The bearing of claim 1 , wherein the slot extends radially into the inner ring from an inner side of the inner ring.

7. The bearing of claim 1 , wherein
the passages comprises a plurality of first passages, and the inner ring further includes a plurality of second passages that are arranged circumferentially around the axis; and
the second passages extend radially through the inner ring to respective second passage outlets.

8. The bearing of claim 7 , wherein one of the second passages includes an aperture that extends radially through the inner ring to a respective one of the second passage outlets.

9. The bearing of claim 7 , wherein
one of the second passages includes a second slot that is fluidly coupled with an aperture;
the second slot extends radially into the inner ring from an inner side of the inner ring; and
the aperture extends radially through the inner ring to the respective second passage outlet.

10. The bearing of claim 9 , wherein
the second slot extends axially through the inner ring to the annular second channel, and the aperture extends radially through the inner ring between the annular second channel and a respective one of the second passage outlets; and
the first of the first passages further includes a third slot that extends axially through the inner ring to the second channel.

11. The bearing of claim 1 , wherein the inner ring comprises a split ring with a first axial ring segment and a second axial ring segment, and the annular second channel is formed at an interface between the first axial ring segment and second axial ring segment.

12. A rolling element bearing, comprising:
a plurality of rolling elements arranged circumferentially around an axis, and radially between a bearing inner ring and a bearing outer ring, wherein each of the rolling elements comprises a spherical ball bearing;
the inner ring extending axially between a first end and a second end, and including a plurality of first passages, a plurality of second passages and a channel;
the first passages for directing lubricant from respective first passage inlets to the channel;
the second passages for directing lubricant from respective second passage inlets to the rolling elements, wherein one of the second passage inlets is substantially axially aligned with one of the first passage inlets; and
the channel extending axially into the inner ring from the second end, and including a gutter that extends radially into and axially within the inner ring.

13. The bearing of claim 12 , wherein
the channel further includes an annular notch that extends axially into the inner ring from the second end; and
the gutter comprises an annular groove that extends radially into the inner ring from the notch.

14. The bearing of claim 12 , wherein
the inner ring further includes a second channel for directing lubricant into the first passage inlets and the second passage inlets; and
the second channel extends axially into the inner ring from the first end.

15. An assembly for a turbine engine, comprising:
a rolling element bearing and a turbine engine component arranged along an axis, the bearing including a bearing inner ring;
the inner ring extending axially between a first end and a second end, and the inner ring including a plurality of first passages, an annular first channel and an annular second channel;
the first passages arranged circumferentially around the axis, each of the first passages comprising a first slot that extends axially through the inner ring between the annular first channel and the annular second channel;
the annular first channel extending axially into the inner ring from the second end, and including a gutter that extends radially into and axially within the inner ring;
the annular second channel formed by and extending axially between axially opposed surfaces of the inner ring; and
the turbine engine component including a plurality of component passages, wherein the channel is fluidly coupled between the first passages and the component passages.

16. The assembly of claim 15 , wherein
the component passages are arranged circumferentially around the axis; and
each of the component passages extends radially through the turbine engine component to a component passage outlet.

17. The assembly of claim 15 , wherein the turbine engine component further includes an annular notch that fluidly couples the annular first channel to the component passages.

18. The assembly of claim 15 , wherein the turbine engine component comprises a seal plate.

19. The assembly of claim 15 , wherein
the inner ring comprises a first axial ring segment and a second axial ring segment; and
the annular second channel is formed at an interface between the first axial ring segment and second axial ring segment.

20. The assembly of claim 15 , wherein
the inner ring further includes an annular third channel that extends axially into the inner ring from the first end; and
each of the first passages further comprises a second slot that extends axially through the inner ring between the annular second channel and the annular first channel.

Assignees

• United Technologies Corp

Inventors

• Walker Brady
• Kovacik Ronnie K

Classifications

• F16C33/586

  outside the space between the races, e.g. end faces or bore of inner ring · CPC title

• F16C19/06

  with a single row or balls · CPC title

• F16C33/60

  divided {or split, e.g. comprising two juxtaposed rings} · CPC title

• F05D2240/54

  Radial bearings · CPC title

• F01D25/16

  Arrangement of bearings; Supporting or mounting bearings in casings (bearings per se F16C) · CPC title