Branch connection stub, a branch connection device comprising a main pipe and said branch connection stub, and a method of connecting such a branch connection stub by welding
US7988202B2 · kind B2 · utility
0Cited by
21References
11Claims
0Family size
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Key dates
| Filing date | Feb 20, 2009 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Apr 23, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F9/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A branch connection stub for connection to a main pipe. The branch connection stub presents an outside surface of revolution and has at least one axial internal passage, a rear segment with a fastener flange, an intermediate segment, and a front segment having a free end presenting a circular outline suitable for being mounting by plane welding around a circular opening in the wall of the main pipe. The intermediate segment includes a first wall and a second wall forming between them an acute angle towards the internal passage. The branch connection stub is applicable to a hot heat exchanger for rocket engines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.