Valve cooling device of internal combustion engine
US8479692B2 · kind B2 · utility
2Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2012 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | Jul 6, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49298
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve cooling device of an internal combustion engine in which engine oil is circulated in a valve that faces a combustion chamber, the valve includes a valve umbrella portion and a valve stem. An inside of the valve stem is formed with an oil introduction channel and an oil lead-out channel, a jet portion that includes a jet oil passage coaxially disposed with the oil introduction channel is provided in the extended direction of the valve stem, and the engine oil is injected from an orifice provided on a tip portion of the jet oil passage to an inner portion of the oil introduction channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.