Centrifugal compressor having a bearing assembly

Patent metadata

Field	Value
Publication number	US-9605683-B2
Application number	US-201313906326-A
Country	US
Kind code	B2
Filing date	May 30, 2013
Priority date	May 30, 2013
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

Embodiments of the present disclosure are directed towards an annular bearing retainer ring comprising a first axial surface, wherein the first axial surface is planar, and a second axial surface, wherein the second axial surface is non-planar.

First claim

The invention claimed is:

1. A compressor, comprising:
a gear box comprising a first retaining bore; and
a rotor assembly, comprising:
a rotor;
a first bearing disposed about the rotor and configured to absorb a load from the rotor, wherein the first bearing is disposed within the first retaining bore of the gear box; and
a first annular bearing retainer ring disposed about the rotor and within the first retaining bore of the gear box, wherein the first annular bearing retainer ring comprises:
a first axial surface, wherein the first axial surface is planar; and
a second axial surface opposite the first axial surface, wherein the second axial surface comprises a first inner radial surface and a first outer radial surface, wherein the first inner radial surface and the first outer radial surface are axially offset from one another, wherein the first axial surface abuts the first retaining bore and the second axial surface abuts the first bearing when the first annular bearing retainer ring is in a first position, and the first axial surface abuts the first bearing and the second axial surface abuts the first retaining bore when the first annular bearing retainer ring is in a second position.

2. The compressor of claim 1 , wherein the first bearing has a first axial position within the gear box when the first annular bearing retainer ring is in the first position, the first bearing has a second axial position within the gear box when the first annular bearing retainer ring is in the second position, and the first and second axial positions are different.

3. The compressor of claim 2 , wherein the gear box comprises a second retaining bore, and the rotor assembly comprises:
a second bearing disposed about the rotor and configured to reduce friction acting on the rotor, wherein the second bearing is disposed within the second retaining bore of the gear box; and
a second annular bearing retainer ring disposed about the rotor and within the second retaining bore of the gear box, wherein the second annular bearing retainer ring comprises:
a third axial surface, wherein the third axial surface is planar; and
a fourth axial surface opposite the third axial surface, wherein the fourth axial surface comprises a second inner radial surface and a second outer radial surface, wherein the second inner radial surface and the second outer radial surface are axially offset from one another.

4. The system of claim 3 , wherein the third axial surface abuts the second retaining bore and the fourth axial surface abuts the second bearing when the second annular bearing retainer ring is in a third position, and the third axial surface abuts the second bearing and the fourth axial surface abuts the second retaining bore when the second annular bearing retainer ring is in a fourth position.

5. The system of claim 4 , wherein the second bearing has a third axial position within the gear box when the second annular bearing retainer ring is in the third position, the second bearing has a fourth axial position within the gear box when the second annular bearing retainer ring is in the fourth position, and the third and fourth axial positions are different.

6. The system of claim 5 , wherein the first annular bearing retainer ring is in the first position, and the second annular bearing retainer ring is in the fourth position.

7. A compressor, comprising:
a gear box comprising a retaining bore; and
a rotor assembly, comprising:
a rotor;
a bearing disposed about the rotor and configured to reduce friction acting on the rotor, wherein the bearing is disposed within the retaining bore of the gear box; and
a bearing retainer disposed about the rotor and within the retaining bore of the gear box, wherein the bearing retainer comprises:
a first axial surface, wherein the first axial surface is planar; and
a second axial surface opposite the first axial surface, wherein the second axial surface is non-planar, wherein the first axial surface abuts the retaining bore and the second axial surface abuts the bearing when the bearing retainer is in a first position, and the first axial surface abuts the bearing and the second axial surface abuts the retaining bore when the bearing retainer is in a second position.

8. The compressor of claim 7 , wherein the bearing has a first axial position within the gear box when the bearing retainer is in the first position, the bearing has a second axial position within the gear box when the bearing retainer is in the second position, and the first and second axial positions are different.

9. The compressor of claim 7 , wherein the second axial surface includes an inner radial surface and an outer radial surface, and the inner radial surface and the outer radial surface are both substantially planar.

10. The compressor of claim 9 , wherein a first thickness between the inner radial surface and the first axial surface is less than a second thickness between the outer radial surface and the first axial surface.

11. The compressor of claim 7 , wherein the bearing retainer comprises an annular ring.

12. The compressor of claim 11 , wherein the annular ring comprises a first arcuate segment and a second arcuate segment removable from the first arcuate segment.

13. The compressor of claim 12 , wherein the first arcuate segment comprises a first position indicator, the second arcuate segment comprises a second position indicator, and the first and second position indicators match one another.

Assignees

• Ingersoll-Rand Company

Inventors

• Blair Noel D
• Gerber Thomas Edward

Classifications

• F16C35/02

  in the case of sliding-contact bearings · CPC title

• F16B43/009

  with a wedging effect in order to adjust the height of the washer · CPC title

• F04D29/052 Primary

  Axially shiftable rotors (F04D29/051 takes precedence {; control by creating a by-pass F04D27/0246}) · CPC title

• F16B43/007

  in two or more parts · CPC title

• F04D25/163

  driven by a common gearing arrangement · CPC title