Shaped and finished metallic torque converter reactor
US6231309A · kind A · utility
6Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1999 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Jun 18, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/915
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Transmission torque converter reactor thrust washer segments (12) comprising a surface hardenable aluminum alloy are subjected to electrical discharge machining (EDM) using an electrode (26) and under conditions effective to impart a hydrodynamic bearing surface profile to the segment surfaces (12a), reduce segment surface roughness, and increase segment surface hardness. Torque converter reactors (10) having integrated thrust washer segments machined in this manner exhibit improved wear resistance and hydrodynamic lift when compared to as cast thrust washer segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.