Cylinder head
US7069885B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F2001/248
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cooling water pipe is deformed so as to have outlet openings respectively placed in a position around a fuel injection nozzle and in a position between ports, and the cooling water pipe is inserted to be placed inside the cylinder head. Thereby, the position around the fuel injection nozzle and the position between the ports can be simultaneously and efficiently cooled, and the structure becomes simpler and the production becomes easier. In order to deform the cooling water pipe, for example, the cooling water pipe is bent first, and subsequently bulge forming by hydraulic pressure is performed. Preferably, the cooling water pipe is made of aluminum. Thereby, the cooling water pipe becomes easier to melt into when the cylinder head is cast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.