Valve system for overhead-camshaft-type internal combustion engine, and engine incorporating same
US8161927B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2008 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Oct 17, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2305/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve system of an overhead-camshaft-type internal combustion engine includes a cam holder fastened to a cylinder head having a combustion chamber formed therein. The cam holder supports a camshaft, and is disposed above the combustion chamber. The cam holder includes a bottom wall, a pair of oppositely-facing support walls having lower sides thereof joined with each other by the bottom wall, and a rib joining predetermined oppositely-facing portions of respective upper side portions of the support walls with each other. The support walls of the cam holder pivotally support the cam shaft. The rib may be integrated with the cam holder, or may be separately formed and fastened to the support walls of the cam holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.