Pipe joint structure and method of assembling same
US7137652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2004 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Oct 20, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L41/086
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a pipe joint structure, a second screw thread formed on an outer circumference end of a joint member is screwed deep into a first screw thread formed on an inner circumference of a cylindrical joint fitting member whose axial end is bonded to a common rail body so that a second flat surface at an axial end of the joint member is pressed against a first flat surface on an outer circumference of the common rail body to form a fluid tight sealing surface therebetween in a state that a fluid passage opened to the second flat surface communicates with a through-hole opened to the first flat surface. Accordingly, even if a position of the joint fitting member to the common rail body is slightly shifted, fluid tight sealing between the first and second flat surfaces is assured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.