Power transmission shaft
US6319337A · kind A · utility
16Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2000 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Jan 28, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S148/902
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The power transmission shaft 12 is made by applying induction hardening to carbon steel with hardening ratio in a range from 0.25 to 0.50. For the carbon steel, one containing 0.39 to 0.49% of C, 0.4 to 1.5% of Si, 0.4 to 1.0% of Mn, 0.025% or less S, 0.02% or less P and 0.01 to 0.1% of Al by weight as the basic components, with the rest comprising Fe and inevitable impurities is used. This makes it possible to achieve higher strength and lighter weight of the power transmission shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.