# US 11,078,998 B2 · Amorphous metal torque convertor stator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,078,998 B2 - Document ID: US11078998B2 - Status: Granted - Kind: B2 - Application number: 16/712,183 - Filed: 2019-12-12 - Published: 2021-06-17 - Granted: 2021-08-03 - Earliest claimed: 2019-12-12 - Assignees: ZF Friedrichshafen AG - Applicants: ZF Friedrichshafen AG - Inventors: Jorge Cisneros; Juraj Cuperka; Troy Menebroker; Enrique Cardenas Urquizo; Andreas Thiede - Web page: https://patentgrep.com/patent/US11078998B2 ## CPC - F16H 41/24: Details - F16D 41/00: Freewheels or freewheel clutches (cycle brakes controlled by back-pedalling B62L5/00 {; one-way linear clutches F16B7/16}) - F16D 41/064: the intermediate members wedging by rolling and having a circular cross-section, e.g. balls (F16D41/061 takes precedence) - F16H 45/02: with mechanical clutches for bridging a fluid gearing of the hydrokinetic type (control of torque converter lock-up clutches F16H61/14) - F16H 2041/246: {relating to one way clutch of the stator} - F16H 2045/0231: {arranged in series} - F16H: GEARING - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES ## 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. ## Claims ### Claim 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. ### Claim 2 (depends on 1) 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. ### Claim 3 (depends on 2) 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. ### Claim 4 (depends on 2) 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. ### Claim 5 (depends on 4) The torque convertor stator of claim 4, wherein the bearing cap forms a first thrust bearing surface. ### Claim 6 (depends on 5) 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. ### Claim 7 (depends on 6) 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. ### Claim 8 (depends on 4) 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. ### Claim 9 (depends on 1) The torque convertor stator of claim 1, wherein the axial thickness of the web is no greater than about two millimeters. ### Claim 10 (depends on 1) A torque converter, comprising the torque convertor stator of claim 1. ### Claim 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. ### Claim 12 (depends on 11) 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. ### Claim 13 (depends on 11) 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. ### Claim 14 (depends on 13) The torque convertor stator of claim 13, wherein the bearing cap forms a first thrust bearing surface. ### Claim 15 (depends on 14) 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. ### Claim 16 (depends on 15) 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. ### Claim 17 (depends on 13) 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. ### Claim 18 (depends on 11) The torque convertor stator of claim 11, wherein the axial thickness of the web is no greater than about two millimeters. ### Claim 19 (depends on 11) A torque converter, comprising the torque convertor stator of claim 11.