Double pipe exhaust manifold
US6625979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2002 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Feb 28, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2310/14
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Disclosed is a double pipe exhaust manifold having an inner pipe, a mesh spacer member applied to the outer periphery of the inner pipe, and an outer pipe being disposed around the outer periphery of the mesh spacer member in a state that the outer pipe is axially slidable at least to the inner pipe, wherein the outer pipe is divided into two pipe members, and one side end of one of the divided pipe members is put on the corresponding one of the other of the divided pipe members as radially viewed, and the other side end of the divided pipe member is put on the corresponding one of the latter divided pipe member, and the overlapping portions are welded together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.