Compressor device and device equipped with a bearing damper

Patent metadata

Field	Value
Publication number	US-12012960-B2
Application number	US-202017765911-A
Country	US
Kind code	B2
Filing date	Dec 15, 2020
Priority date	Dec 18, 2019
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

Compressor device provided with at least one compressor element and a drive for the compressor element, wherein all bearings of at least one shaft in the compressor device configured to carry static axial load, are provided with a bearing damper which comprises a coupling element and at least one damping element made of damping elastomer material. The bearing damper is installed with the aid of the coupling element between a bearing of the compressor device and the housing of the compressor device. The coupling element allows little or no movement of the bearing relative to the housing the radial direction compared to the axial direction. The damping element is configured to dampen the axial movement of the bearing relative to the housing.

First claim

The invention claimed is:

1. A compressor device with a housing and provided with at least one compressor element and a drive for the compressor element, wherein all bearings of at least one shaft in the compressor device configured to carry static axial load, are provided with a bearing damper which comprises a coupling element and at least one damping element made of a damping elastomer material,
wherein the bearing damper is installed with the aid of the coupling element between a bearing of the compressor device and the housing of the compressor device,
wherein the coupling element allows little or no movement of the bearing relative to the housing in the radial direction compared to the axial direction,
wherein the at least one damping element is configured to dampen the axial movement of the bearing relative to the housing, and
wherein the coupling element is a ring-shaped element which includes at least two rings, and the at least two rings are held together along their inner edges and/or outer edges by an inner clamping strip and/or an outer clamping strip respectively.

2. The compressor device according to claim 1 , wherein the at least two rings are made of steel or spring steel.

3. The compressor device according to claim 1 , wherein the coupling element has a thickness in the axial direction of not more than five millimeters.

4. The compressor device according to claim 3 , wherein the at least two rings have a thickness in the axial direction of not more than two millimetres.

5. The compressor device according to claim 1 , wherein said at least two rings, the inner clamping strip and the outer clamping strip are either one assembly or made as one piece.

6. The compressor device according to claim 1 , wherein the inner clamping strip and the outer clamping strip are provided with clamping surfaces between which the damping element is located, and wherein the clamping surfaces extend in the axial direction or in the radial direction.

7. The compressor device according to claim 1 , wherein the coupling element is composed of the at least two rings, and wherein the at least one damping element is provided between the adjacent rings of the at least two rings.

8. The compressor device according to claim 7 , wherein each ring of the at least two rings are provided with spokes extending between a respective inner edge and a respective outer edge, wherein the spokes of the first ring are aligned with the spokes of the second ring, and wherein the at least one damping element is fixed between the aligned spokes of adjacent rings of the at least two rings.

9. The compressor device according to claim 8 , wherein the at least one damping element is made of a rubber and fixed against the aligned spokes by vulcanizing or clamping.

10. The compressor device according to claim 7 , wherein the at least two rings includes at least three rings, wherein each ring of the at least three rings are provided with spokes extending between respective inner and outer edges of the at least three rings, wherein the spokes of the at least three rings are aligned, and wherein the at least one damping element comprises multiple damping elements that are fixed between all of the aligned spokes.

11. The compressor device according to claim 7 , wherein an inner spacer is provided between the inner edge of two consecutive rings of the at least two rings, and an outer spacer is provided between the outer edge and the two consecutive rings.

12. The compressor device according to claim 7 , wherein the at least one damping element is made of a rubber and fixed against the at least two rings by vulcanizing or clamping.

13. A device with a housing comprising a rotating shaft with a bearing,
wherein the bearing is provided with a bearing damper comprising a coupling element and at least one damping element made of damping elastomer material,
wherein the bearing damper is provided with the aid of the coupling element between the bearing and the housing of the device,
wherein the coupling element allows little or no movement of the bearing relative to the housing in the radial direction,
wherein the at least one damping element is configured to dampen the axial movement of the bearing relative to the housing, and
wherein the coupling element is a ring having a thickness in the axial direction of not more than five millimeters.

14. A compressor device with a housing and provided with at least one compressor element and a drive for the compressor element, wherein all bearings of at least one shaft in the compressor device configured to carry static axial load, are provided with a bearing damper which comprises a coupling element and at least one damping element made of a damping elastomer material,
wherein the bearing damper is installed with the aid of the coupling element between a bearing of the compressor device and the housing of the compressor device,
wherein the coupling element allows little or no movement of the bearing relative to the housing in the radial direction compared to the axial direction,
wherein the at least one damping element is configured to dampen the axial movement of the bearing relative to the housing, and
wherein the coupling element is a ring having a thickness in the axial direction of not more than five millimetres.

Assignees

• Atlas Copco Airpower Nv

Inventors

• Verrelst Bjorn
• Vercauteren Nils
• Pittois Stijn
• Van De Walle Axel

Classifications

• F01C21/02

  Arrangements of bearings (bearing constructions F16C) · CPC title

• F16C19/06

  with a single row or balls · CPC title

• F05C2251/02

  Elasticity · CPC title

• F05C2225/02

  Rubber · CPC title

• F01D25/164

  Flexible supports; Vibration damping means associated with the bearing · CPC title