Integral stator and one-way clutch

Abstract

The present invention broadly comprises a stator and clutch assembly for a torque converter including first and second halves for a stator, each formed from first and second single pieces. Blades for the stator are disposed within respective annuli for the first and second halves. The assembly also includes a one-way clutch. The first and second halves have inner circumferential portions configured to form a portion of the clutch. The assembly includes an axially displaceable plate connected to a hub. The plate and a circumferential portion are operatively arranged to form a portion of the clutch. In some aspects, the plate and the circumferential portion are arranged to lockingly engage and the assembly includes a displacement element arranged to urge the plate toward the circumferential portion. In some aspects, the plate and hub are formed from a single piece or the plate is axially displaceable with respect to the hub.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The nature and mode of operation of the present invention will now be more fully described in the following detailed description of the invention taken with the accompanying drawing figures, in which:

FIG. 1 is a partial cross-section of a present invention stator and clutch assembly in a torque converter with an axially displaceable clutch plate and hub in an unlocked mode;

FIG. 2 is a partial cross-section of the stator and clutch assembly in FIG. 1 in a locked mode;

FIG. 3 is a partial cross-section of a present invention stator and clutch assembly in a torque converter with an integral clutch plate and hub in an unlocked mode; and,

FIG. 4 is a partial cross-section of the stator and clutch assembly in FIG. 3 in a locked mode.

Claims

1. A stator and clutch assembly for a torque converter, comprising: a first half for a stator; and,a second half for said stator, wherein said first and second halves are each formed from first and second single pieces, respectively, and wherein blades for said stator are disposed within respective annuli for said first and second halves.

2. The assembly recited in claim 1 further comprising: a one-way clutch; and, wherein said first and second halves further comprise first and second inner circumferential portions, respectively, configured to form a portion of said one-way clutch.

3. The assembly recited in claim 2 further comprising: an axially displaceable plate connected to a hub; and, wherein said plate and said first inner circumferential portion are operatively arranged to form a portion of said one-way clutch.

4. The assembly recited in claim 3 wherein said plate and said first inner circumferential portion are arranged to lockingly engage.

5. The assembly recited in claim 3 wherein said first inner circumferential portion further comprises at least one opening and said plate further comprises at least one protrusion axially aligned with said at least one opening.

6. The assembly recited in claim 3 wherein said plate further comprises at least one opening and said first inner circumferential portion further comprises at least one protrusion axially aligned with said at least one opening.

7. The assembly recited in claim 3 further comprising: a first displacement element arranged to urge said plate axially toward said first inner circumferential portion.

8. The assembly recited in claim 3 wherein said plate and said hub are formed from a third single piece.

9. The assembly recited in claim 8 further comprising: a second displacement element disposed between said second inner circumferential portion and said plate.

10. The assembly recited in claim 3 wherein said plate is axially displaceable with respect to said hub.

11. The assembly recited in claim 10 further comprising: a third displacement element disposed between said plate and said hub.

12. The assembly recited in claim 1 further comprising: a first wear-prevention element disposed between said hub and a first element selected from the group consisting of said first and second inner circumferential portions.

13. The assembly recited in claim 1 wherein said first half further comprises a first annular portion disposed between said clutch and said annulus for said first half, said second half further comprises a second annular portion disposed between said clutch and said annulus for said second half, and at least portions of said first and second annular portions are in contact.

14. The assembly recited in claim 13 wherein said torque converter further comprises first and second bearings; and, wherein said first and second annular portions are operatively arranged to receive said first and second bearings, respectively.

15. The assembly recited in claim 14 wherein said first and second halves further comprise at least one first and second retention elements, respectively, operatively arranged to engage said first and second bearings, respectively.

16. A stator and clutch assembly for a torque converter, comprising: a first axial portion for a stator;a second axial portion for said stator; and,a one-way clutch, wherein, said first axial portion further comprises a first annular portion disposed radially outside said clutch, said second axial portion further comprises a second annular portion disposed radially outside said clutch, at least portions of said first and second annular portions are in axial contact, and said first and second annular portions are operatively arranged to receive first and second bearings, respectively.

17. A stator and clutch assembly for a torque converter, comprising: a first axial end for a stator comprising a first circumferential portion disposed between blades for said stator and an axis for said stator;a second axial end for said stator comprising a second circumferential portion disposed between said blades and said axis; and,a one-way clutch comprising an axially displaceable plate, wherein said first and second ends are each formed from first and second single pieces, respectively, wherein said plate and said first circumferential portion are operatively arranged to form a portion of said one-way clutch, and wherein said plate and said first circumferential portion are arranged to lockingly engage.