Limited slip differential and manufacturing method for limited slip differential
US8167757B2 · kind B2 · utility
1Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2008 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Mar 2, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49464
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A plurality of microscopic grooves are created on the surface of the teeth of planetary gears, and thus, irregular unevenness is created. This irregular unevenness includes a plurality of first microscopic grooves which function as lubricant grooves and a plurality of second microscopic grooves which are shallower than the first microscopic grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.