Isolating decoupler

Patent metadata

Field	Value
Publication number	US-11028884-B2
Application number	US-201816040751-A
Country	US
Kind code	B2
Filing date	Jul 20, 2018
Priority date	Jul 20, 2018
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

An isolating decoupler comprising a shaft, a pulley journalled to the shaft on at least one bearing, a one-way clutch engaged with the shaft, a torsion spring engaged between the one-way clutch and the pulley, the shaft comprises an inner race of the at least one bearing, and the torsion spring having an end welded to the one-way clutch and having another end welded to the pulley.

First claim

We claim:

1. An isolating decoupler comprising:
a shaft;
a pulley journalled to the shaft on at least one bearing;
a one-way clutch engaged with the shaft;
a torsion spring engaged between the one-way clutch and the pulley;
the shaft comprises an inner race of the at least one bearing; and
the torsion spring having a first end welded to the one-way clutch and having a second end welded to the pulley.

2. The isolating decoupler as in claim 1 , wherein the at least one bearing is a ball bearing.

3. The isolating decoupler as in claim 1 , further comprising a clutch carrier disposed between the torsion spring and the one-way clutch.

4. The isolating decoupler as in claim 1 further comprising a second bearing.

5. The isolating decoupler as in claim 1 further comprising an outer race of the at least one bearing, wherein the outer race comprises a radially extending flange; wherein the flange is disposed between the at least one bearing and the pulley, the torsion spring welded to the flange.

6. The isolating decoupler as in claim 1 , wherein the shaft comprises an anti-rotation feature.

7. The isolating decoupler as in claim 1 further comprising a second bearing.

8. The isolating decoupler as in claim 7 , wherein the second bearing comprises a ball bearing.

9. An isolating decoupler comprising:
a shaft;
a pulley journalled to the shaft on at least one bearing;
a one-way clutch engaged with the shaft;
a torsion spring engaged between the one-way clutch and the pulley;
the shaft configured as an inner race of the at least one bearing; and
the torsion spring having a first end attached to the one-way clutch and having a second end attached to the pulley.

Assignees

• Gates Corp

Inventors

• Serkh Alexander
• Mora Anthony R
• Rahdar Essie

Classifications

• F16H55/36 Primary

  Pulleys (with features essential for adjustment F16H55/52) · CPC title

• F02B67/06

  driven by means of chains, belts, or like endless members · CPC title

• F16D41/206

  having axially adjacent coils, e.g. helical wrap-springs · CPC title

• F16H35/10

  Arrangements or devices for absorbing overload or preventing damage by overload · CPC title

• F16D41/00

  Freewheels or freewheel clutches (cycle brakes controlled by back-pedalling B62L5/00 {; one-way linear clutches F16B7/16}) · CPC title