Valve spring retainer made of titanium
US7803236B2 · kind B2 · utility
0Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2005 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Aug 29, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2303/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
To provide a valve spring retainer made of titanium, capable of reduction in raw material cost and processing cost, a valve spring retainer is formed out of a titanium alloy raw material composed of 0.8 wt %≦Fe≦1.2 wt %, 0.24 wt %≦O≦0.32 wt %, 0.02 wt %≦N≦0.05 wt %, and balance Ti containing unavoidable impurities through cold forging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.