End seal structure of fuel rail for gasoline direct injection engine
US10202954B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2016 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Apr 18, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/8076
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Provided is an end seal structure of a fuel rail for a gasoline direct injection engine that has a simple structure and allows an end cap part to meet higher pressure requirements in a fuel rail having the structure in which one end or both ends of a rail body composed of a tubular member, such as a pipe, is/are closed by an end cap or end caps. The end seal structure employs a thread fastening method using the end cap and a collar brazed at the opening end of the fuel rail body and a gasket sealing method as a sealing method, wherein a gasket interposed between the end cap and the fuel rail body is tightened by an axial force generated due to tightening of the end cap that is screwed and fastened to the fuel rail body so as to be sealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.