Ball retention assembly for synchronous engagement clutch

Patent metadata

Field	Value
Publication number	US-10612608-B2
Application number	US-201815906442-A
Country	US
Kind code	B2
Filing date	Feb 27, 2018
Priority date	Feb 27, 2018
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

A synchronous engagement clutch (SEC) assembly is provided. The SEC assembly includes a starter ball guide and a carrier support. The starter ball guide includes opposed first and second sides and the carrier support includes opposed first and second sides. The first side of the starter ball guide defines an annular groove and the second side of the carrier support defines pockets. The starter ball guide and the carrier support are disposable with the first side of the starter ball guide facing the second side of the carrier support such that engagement balls are retainable in the pockets and the annular groove.

First claim

What is claimed is:

1. A synchronous engagement clutch (SEC) assembly, comprising:
a starter ball guide comprising opposed first and second sides;
a carrier support comprising opposed first and second sides,
the first side of the starter ball guide defining an aperture and an annular groove that tapers with increasing distance from the aperture,
the first side of the starter ball guide comprising an outer diameter and an inner diameter that is taller in an axial direction than the outer diameter,
the second side of the carrier support defining pockets, and
the starter ball guide and the carrier support being disposable with the first side of the starter ball guide facing the second side of the carrier support such that engagement balls are retainable in the pockets and the annular groove.

2. The SEC assembly according to claim 1 , wherein a profile of the second side of the carrier support at each of the pockets mimics a profile of the first side of the starter ball guide at the annular groove.

3. The SEC assembly according to claim 1 , wherein the carrier support comprises radial dividers delimiting each pocket.

4. The SEC assembly according to claim 3 , wherein a profile of each radial divider mimics a profile of the annular groove.

5. The SEC assembly according to claim 1 , wherein each pocket has a depth which is at least equal to or greater than a radius of the engagement balls.

6. The SEC assembly according to claim 1 , wherein each pocket has a circumferential width which exceeds a diameter of the engagement balls.

7. A synchronous engagement clutch (SEC) assembly, comprising:
engagement balls;
a starter ball guide comprising opposed first and second sides and defining a first aperture extending between the first and second sides;
a carrier support comprising opposed first and second sides and defining a second aperture extending between the first and second sides,
the first side of the starter ball guide defining an annular groove about the first aperture wherein the annular groove tapers with increasing distance from the first aperture,
the first side of the starter ball guide comprising an outer diameter and an inner diameter that is taller in an axial direction than the outer diameter,
the second side of the carrier support defining pockets arrayed about the second aperture, and
the starter ball guide and the carrier support being disposable with the first side of the starter ball guide facing the second side of the carrier support at a distance at which the engagement balls are respectively retainable in corresponding ones of the pockets and the annular groove.

8. The SEC assembly according to claim 7 , wherein a profile of the second side of the carrier support at each of the pockets mimics a profile of the first side of the starter ball guide at the annular groove.

9. The SEC assembly according to claim 7 , wherein the carrier support comprises radial dividers delimiting each pocket.

10. The SEC assembly according to claim 9 , wherein a profile of each radial divider mimics a profile of the annular groove.

11. The SEC assembly according to claim 7 , wherein each pocket has a depth which is at least equal to or greater than a radius of the engagement balls.

12. The SEC assembly according to claim 7 , wherein each pocket has a circumferential width which exceeds a diameter of the engagement balls.

13. A synchronous engagement clutch (SEC) assembly, comprising:
a starter ball guide comprising opposed first and second sides a defining a first aperture;
a carrier support comprising opposed first and second sides,
the first side of the starter ball guide comprising a steep-walled inner diameter, a shallow-tapered outer diameter, wherein the steep-walled inner diameter is taller in an axial direction than the shallow-tapered outer diameter, and a curved central diameter radially interposed between the steep-walled inner diameter and the shallow-tapered outer diameter to define an annular groove that tapers with increasing radial distance from the first aperture,
the second side of the carrier support comprising an inwardly curving sidewall and radial dividers extending from the inwardly curving sidewall to define pockets, and
the starter ball guide and the carrier support being disposable with the first side of the starter ball guide facing the second side of the carrier support such that engagement balls are retainable in the pockets and the annular groove.

14. The SEC assembly according to claim 13 , wherein a profile of the second side of the carrier support at each of the pockets mimics a profile of the first side of the starter ball guide at the annular groove.

15. The SEC assembly according to claim 13 , wherein the carrier support is formed to define second aperture.

16. The SEC assembly according to claim 13 , wherein a profile of each radial divider mimics a profile of the annular groove.

17. The SEC assembly according to claim 13 , wherein each pocket has a depth which is at least equal to or greater than a radius of the engagement balls.

18. The SEC assembly according to claim 13 , wherein each pocket has a circumferential width which exceeds a diameter of the engagement balls.

Assignees

• Hamilton Sundstrand Corp
• Hamilton Sunstrand Corp

Inventors

• Lebeau Erik D
• Ni Weishun Willaim

Classifications

• F16D43/06 Primary

  with centrifugal masses actuating axially a movable pressure ring or the like · CPC title

• F16D11/14 Primary

  with clutching members movable only axially (F16D11/02, F16D11/08 take precedence) · CPC title

• F16D41/22

  with clutching ring or disc axially shifted as a result of lost motion between actuating members (F16D41/02, F16D41/24 take precedence) · CPC title

• F16D43/08

  the pressure ring actuating friction plates, cones or similar axially-movable friction surfaces · CPC title