Clutch carrier assembly

Patent metadata

Field	Value
Publication number	US-2016333944-A1
Application number	US-201615146014-A
Country	US
Kind code	A1
Filing date	May 4, 2016
Priority date	May 12, 2015
Publication date	Nov 17, 2016
Grant date	—

Abstract

A clutch carrier includes a stamped carrier and a hub portion. The stamped carrier has a first circumferential wall, a second circumferential wall axially and radially offset from the first circumferential wall, and a first radial wall extending radially inward from the second circumferential wall. The hub portion has a third circumferential wall extending from the first radial wall, a fourth circumferential wall axially and radially offset from the third circumferential wall, and a second radial wall connecting the third and fourth circumferential walls. In some example embodiments, the first circumferential wall includes a plurality of axially extending fingers for driving engagement with a clutch plate. In an example embodiment, each of the plurality of axially extending fingers includes a groove for receiving a retaining ring.

First claim

What we claim is:

1 . A clutch carrier assembly for a transmission comprising:
a stamped carrier comprising:
a first circumferential wall;
a second circumferential wall axially and radially offset from the first circumferential wall; and,
a first radial wall extending radially inward from the second circumferential wall; and,
a hub portion comprising:
a third circumferential wall extending from the first radial wall;
a fourth circumferential wall axially and radially offset from the third circumferential wall; and,
a second radial wall connecting the third and fourth circumferential walls.

2 . The clutch carrier assembly of claim 1 wherein the first circumferential wall includes a plurality of axially extending fingers for driving engagement with a clutch plate.

3 . The clutch carrier assembly of claim 2 wherein each of the plurality of axially extending fingers includes a groove for receiving a retaining ring.

4 . The clutch carrier assembly of claim 1 wherein the fourth circumferential wall includes a spline for driving engagement with a transmission shaft.

5 . The clutch carrier assembly of claim 1 wherein the third circumferential wall is fixed to the first radial wall by welding.

6 . The clutch carrier assembly of claim 1 wherein the third circumferential wall is drivingly engaged with the first radial wall by a spline connection.

7 . The clutch carrier assembly of claim 1 wherein the carrier comprises a conical portion extending from the second circumferential wall and including a plurality of circumferentially offset flow holes.

8 . The clutch carrier assembly of claim 1 wherein the first radial wall includes a plurality of holes for receiving a respective plurality of rivets.

9 . The clutch carrier assembly of claim 1 wherein the third circumferential wall includes pluralities of axially offset flow holes.

10 . The clutch carrier assembly of claim 1 wherein the carrier and the hub are integrally formed out of a single piece of sheet metal.

11 . The clutch carrier assembly of claim 10 wherein the third circumferential wall and the second radial wall include respective pluralities of flow holes.

12 . A clutch carrier assembly for a transmission comprising:
a clutch carrier including a first radial wall; a cover fixed to the clutch carrier and including:
a second radial wall including:
a first portion in contact with the first radial wall; and,
a second portion including a plurality of circumferentially offset radial depressions;

a third radial wall radially and axially offset from the second radial wall and axially offset from the first radial wall; and,
a first cylindrical protrusion extending from a radially outermost portion of the second radial wall; and,
a hub drivingly engaged with the clutch carrier or the cover.

13 . The clutch carrier assembly of claim 12 further comprising a plurality of rivets circumferentially offset from the radial depressions for fixing the clutch carrier to the cover.

14 . The clutch carrier assembly of claim 13 wherein:
the cover includes a cylindrical protrusion extending from a radially inner most portion of the third radial wall; and,
the clutch carrier is fixed to the hub by welding.

15 . The clutch carrier assembly of claim 13 further comprising a speed sensor wheel including a plurality of radial notches for receiving the radial depressions and fixed to the clutch carrier and the cover by the plurality of rivets.

16 . The clutch carrier assembly of claim 13 wherein:
the hub includes a shoulder or a notch;
the cover is axially retained by the shoulder or a retaining ring disposed in the notch; and,
the clutch carrier is fixed to the hub by welding.

17 . The clutch carrier assembly of claim 13 wherein:
the hub includes a notch, a shoulder, and a spline;
the clutch carrier is axially retained by the shoulder and drivingly engaged with the hub by the spline; and,
the cover is axially retained by a retaining ring disposed in the notch.

18 . The clutch carrier assembly of claim 13 wherein:
the hub includes a shoulder;
the clutch carrier is axially retained by the shoulder; and,
the cover is fixed to the hub by welding.

19 . A cover for a transmission clutch carrier assembly comprising:
a radial wall; a first cylindrical protrusion extending in a first axial direction from a radially outermost portion of the radial wall; a second cylindrical protrusion extending in a second axial direction, opposite the first axial direction, from a distal end of the first cylindrical protrusion and at least partially in contact with the first cylindrical protrusion.

20 . The cover of claim 19 wherein the second cylindrical protrusion comprises a plurality of circumferentially spaced and radially extending apertures.

21 . The cover of claim 20 wherein the apertures are rectangular in shape.

Assignees

• Schaeffler Technologies Ag

Inventors

• Smith David
• Hodge Michael
• Linton Daniel
• Heeke Gregory
• Frary Matthew

Classifications

• F16D13/644

  Hub construction · CPC title

• F16D2021/0661

  Hydraulically actuated multiple lamellae clutches · CPC title

• F16D13/683 Primary

  for clutches with multiple lamellae · CPC title

• F16D2300/12

  Mounting or assembling · CPC title

• F16D21/06

  at least two driving shafts or two driven shafts being concentric · CPC title