Center bearing assembly including a rotatable weld collar with a tuned damper

Patent metadata

Field	Value
Publication number	US-11312232-B2
Application number	US-201916663418-A
Country	US
Kind code	B2
Filing date	Oct 25, 2019
Priority date	Jun 27, 2018
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

A constant velocity joint for a multi-piece propeller shaft includes an outer race extending from a first outer race end to a second outer race end to define an exterior surface. A tuned damper extends radially outwardly from the exterior surface of the of the outer race for reducing noise, vibration, and/or harshness (NVH) generated during operation of the multi-piece propeller shaft.

First claim

What is claimed is:

1. A constant velocity joint for a multi-piece propeller shaft comprising:
an outer race extending from a first outer race end to a second outer race end to define an exterior surface;
said exterior surface of said outer race including an integral raised ring portion disposed between said first and second outer race ends; and
a tuned damper disposed on and extending radially outwardly from said integral raised ring portion of said exterior surface of said outer race for reducing noise, vibration, and/or harshness (NVH) generated during operation of the multi-piece propeller shaft.

2. The constant velocity joint as set forth in claim 1 , wherein said tuned damper is disposed adjacent said second outer race end and in spaced relationship with said first outer race end to facilitate attachment of a shaft segment of the multi-piece propeller shaft to said first outer race end of said outer race.

3. The constant velocity joint as set forth in claim 1 , wherein said tuned damper includes a first damper ring disposed in encircling and abutting relationship with said integral raised ring portion and a second damper ring disposed in encircling and abutting relationship with said first damper ring.

4. The constant velocity joint as set forth in claim 3 , wherein said first damper ring is comprised of a flexible material and said second damper ring is comprised of steel or iron.

5. The constant velocity joint as set forth in claim 1 , wherein said tuned damper is press-fit onto said integral raised ring portion of said exterior surface of said outer race.

6. The constant velocity joint as set forth in claim 1 , further comprising:
an inner race disposed within said outer race; and
a cage housing a plurality of balls disposed between said inner and outer races and rotatably supporting said inner and outer races relative to one another for transmitting torque therebetween.

7. A multi-piece propeller shaft comprising:
a first shaft segment and a second shaft segment;
a constant velocity joint disposed between and operably interconnecting said first and second shaft segments;
said constant velocity joint including an inner race operably interconnected with said first shaft segment;
said constant velocity joint including an outer race operably interconnected with said second shaft segment;
said outer race extending from a first outer race end interconnected to said second shaft segment to a second outer race end to define an exterior surface;
said exterior surface of said outer race including an integral raised ring portion disposed between said first and second outer race ends; and
a tuned damper disposed on and extending radially outwardly from said integral raised ring portion of said exterior surface of said outer race for reducing noise, vibration, and/or harshness (NVH) generated during operation of the multi-piece propeller shaft.

8. The multi-piece propeller shaft as set forth in claim 7 , wherein said tuned damper is disposed adjacent said second outer race end and in spaced relationship with said first outer race end to facilitate attachment of said second shaft segment to said outer race.

9. The multi-piece propeller shaft as set forth in claim 7 , wherein said tuned damper includes a first damper ring disposed in encircling and abutting relationship with said integral raised ring portion of said exterior surface and a second damper ring disposed in encircling and abutting relationship with said first damper ring.

10. The multi-piece propeller as set forth in claim 9 , wherein said first damper ring is comprised of a flexible material and said second damper ring is comprised of steel or iron.

11. The multi-piece propeller shaft as set forth in claim 7 , wherein said tuned damper is press-fit onto said integral raised ring portion of said exterior surface.

12. The multi-piece propeller shaft as set forth in claim 7 further comprising a cage housing a plurality of balls disposed between said inner and outer races and rotatably supporting said inner and outer races relative to one another for transmitting torque therebetween.

Assignees

• Neapco Intellectual Property Holdings Llc

Inventors

• Willyard John

Classifications

• F16D3/387

  Fork construction; Mounting of fork on shaft; Adapting shaft for mounting of fork · CPC title

• F16D2003/22326

  Attachments to the outer joint member, i.e. attachments to the exterior of the outer joint member or to the shaft of the outer joint member · CPC title

• F16C2326/06

  Drive shafts · CPC title

• B60K17/22 Primary

  characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft · CPC title

• F16D3/2245

  where the groove centres are offset from the joint centre · CPC title