Amorphous metal torque convertor stator

Patent metadata

Field	Value
Publication number	US-11078998-B2
Application number	US-201916712183-A
Country	US
Kind code	B2
Filing date	Dec 12, 2019
Priority date	Dec 12, 2019
Publication date	Aug 3, 2021
Grant date	Aug 3, 2021

Abstract

A torque convertor stator includes an annular bearing support, a plurality of stator blades, and a web extending radially between the annular bearing support and the plurality of stator blades. The annular bearing support, the plurality of stator blades, and the web are formed from a single continuous piece of amorphous metal.

First claim

What is claimed is:

1. A torque convertor stator, comprising:
an annular bearing support;
a plurality of stator blades; and
a web extending radially between the annular bearing support and the plurality of stator blades,
wherein the annular bearing support, the plurality of stator blades, and the web are formed from a single continuous piece of amorphous metal, and
wherein an axial thickness of the web is no greater than about three millimeters and no less than a half of a millimeter.

2. The torque convertor stator of claim 1 , further comprising a one-way clutch positioned at a center opening of the annular bearing support, wherein the annular bearing support forms an outer race of the one-way clutch.

3. The torque convertor stator of claim 2 , wherein the outer race comprises a plurality of bearing slots and a plurality of flanges, each slot of the plurality of bearing slots positioned circumferentially between a respective pair of flanges of the plurality of flanges.

4. The torque convertor stator of claim 2 , further comprising a bearing cap mounted to the annular bearing support at the center opening of the annular bearing support.

5. The torque convertor stator of claim 4 , wherein the bearing cap forms a first thrust bearing surface.

6. The torque convertor stator of claim 5 , wherein the web forms a second thrust bearing surface facing opposite the first thrust bearing surface of the bearing cap.

7. The torque convertor stator of claim 6 , wherein each of the first and second thrust bearing surfaces defines a respective plurality of radial flow channels.

8. The torque convertor stator of claim 4 , wherein the one-way clutch comprises an inner bearing ring and a plurality of bearings, the inner bearing ring forming an inner race of the one-way clutch, the plurality of bearings positioned radially between and riding on the inner and outer races.

9. The torque convertor stator of claim 1 , wherein the axial thickness of the web is no greater than about two millimeters.

10. A torque converter, comprising the torque convertor stator of claim 1 .

11. A torque convertor stator, comprising:
an annular bearing support;
a plurality of stator blades;
a web extending radially between the annular bearing support and the plurality of stator blades; and
a one-way clutch positioned at a center opening of the annular bearing support,
wherein the annular bearing support, the plurality of stator blades, and the web are formed from a single continuous piece of amorphous metal,
wherein the annular bearing support forms an outer race of the one-way clutch at an inner surface of the annular bearing support, and
wherein an axial thickness of the web is no greater than about three millimeters and no less than a half of a millimeter.

12. The torque convertor stator of claim 11 , wherein the outer race comprises a plurality of bearing slots and a plurality of flanges, each slot of the plurality of bearing slots positioned circumferentially between a respective pair of flanges of the plurality of flanges.

13. The torque convertor stator of claim 11 , further comprising a bearing cap mounted to the annular bearing support at the center opening of the annular bearing support.

14. The torque convertor stator of claim 13 , wherein the bearing cap forms a first thrust bearing surface.

15. The torque convertor stator of claim 14 , wherein the web forms a second thrust bearing surface facing opposite the first thrust bearing surface of the bearing cap along an axis of the torque convertor stator.

16. The torque convertor stator of claim 15 , wherein each of the first and second thrust bearing surfaces defines a respective plurality of radial flow channels.

17. The torque convertor stator of claim 13 , wherein the one-way clutch comprises an inner bearing ring and a plurality of bearings, the inner bearing ring forming an inner race of the one-way clutch, the plurality of bearings positioned radially between and riding on the inner and outer races.

18. The torque convertor stator of claim 11 , wherein the axial thickness of the web is no greater than about two millimeters.

19. A torque converter, comprising the torque convertor stator of claim 11 .

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Cisneros Jorge
• Cuperka Juraj
• Menebroker Troy
• Urquizo Enrique Cardenas
• Thiede Andreas

Classifications

• F16D41/064

  the intermediate members wedging by rolling and having a circular cross-section, e.g. balls (F16D41/061 takes precedence) · CPC title

• F16H2045/0231

  arranged in series · CPC title

• F16H45/02

  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type (control of torque converter lock-up clutches F16H61/14) · CPC title

• F16H41/24 Primary

  Details · CPC title

• F16H2041/246

  relating to one way clutch of the stator · CPC title