Core ring with cut or lanced features

Patent metadata

Field	Value
Publication number	US-9651129-B2
Application number	US-201414522051-A
Country	US
Kind code	B2
Filing date	Oct 23, 2014
Priority date	Nov 4, 2013
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A core ring for a torque converter comprising: an annular body portion including an inner concave surface, an outer convex surface, an inner circumferential edge, and an outer circumferential edge; a plurality of blade tab slots for receiving a plurality of blades; and at least one positioning element including material protruding axially inward from the inner concave surface to form a tip of the positioning element for aligning a stator. A method for installing a torque converter onto a transmission is also provided.

First claim

I claim:

1. A core ring for a torque converter comprising:
an annular body portion including:
an inner concave surface;
an outer convex surface;
an inner circumferential edge; and
an outer circumferential edge;

a plurality of blade tab slots for receiving a plurality of blades; and
at least one positioning element disposed radially outward of the inner circumferential edge and including material protruding axially inward from the inner concave surface to form a tip of the positioning element for aligning a stator.

2. The core ring as in claim 1 wherein the at least one positioning element for aligning the stator is situated entirely between the blade tab slots.

3. The core ring as in claim 1 wherein the core ring extends circumferentially about an axis.

4. The core ring as in claim 1 wherein the at least one positioning element is a cut feature.

5. The core ring as in claim 4 wherein the inner circumferential edge is discontinuous.

6. The core ring as in claim 5 wherein the inner circumferential edge is separated into a plurality of areas equal to the number of cut features.

7. The core ring as in claim 1 wherein the at least one positioning element is a lanced feature.

8. The core ring as in claim 7 wherein the inner circumferential edge is continuous.

9. The core ring as in claim 1 wherein the core ring is stamped low carbon steel.

10. A torque converter comprising:
the stator;
the core ring of claim 1 including the at least one positioning element situated entirely between the blade tab slots; and,
a plurality of blades including respective blade tabs disposed in the core ring blade tab slots.

11. The torque converter as in claim 10 wherein the core ring extends circumferentially about an axis.

12. The torque converter as in claim 11 wherein the at least one positioning element is a cut feature.

13. The torque converter as in claim 12 wherein the inner circumferential edge is discontinuous.

14. The torque converter as in claim 13 wherein the inner circumferential edge is separated into a plurality of areas equal to the number of cut features.

15. The torque converter as in claim 11 wherein the at least one positioning element is a lanced feature.

16. The torque converter as in claim 15 wherein the inner circumferential edge is continuous.

17. The torque converter as in claim 10 wherein the core ring is stamped low carbon steel.

18. The torque converter as in claim 10 wherein the stator is cast aluminum.

19. A torque converter comprising: a stator and a core ring for supporting a plurality of blades, the core ring including at least one element for centering the stator, each centering element being entirely situated between the blades.

20. The torque converter as in claim 19 wherein the at least one centering element is a cut or lanced feature.

Assignees

• Schaeffler Technologies Gmbh & Co Kg
• Schaeffler Group Usa Inc
• Schaeffler Technologies Ag

Inventors

• Dattawadkar Aditya

Classifications

• F16H41/28 Primary

  with respect to manufacture, e.g. blade attachment · CPC title

• F01D25/28

  Supporting or mounting arrangements, e.g. for turbine casing · CPC title

• F16H2041/285

  of stator blades · CPC title

• F01D9/042

  fixing blades to stators (fixing stator-rings in the casing or to each other F01D25/246) · CPC title

• F16H41/26

  Shape of runner blades or channels with respect to function · CPC title