Exhaust manifold and method of making the same
US6933056B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 14, 2002 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Dec 26, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12056
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust manifold (10) of the present invention comprises a liner (12) that includes inner surface (14) defining manifold passages and an outer surface (16). The exhaust manifold (10) includes a shell (18) of a homogeneous and continuous material disposed over the outer surface (16) of the liner (12). The shell (18) and liner (12) of the exhaust manifold (10) include first (60) and second (72) composition formed from ferrous and non-ferrous metal powders (62), ceramic powder (64), and a binder (74) added thereto to form the manifold (10). The invention discloses a method of making the exhaust manifold (80). Accordingly, the exhaust manifold (10) of the subject invention has a reduced weight and dissipates heat energy contained in the exhaust thereby increasing the efficiency of the catalytic converter (42).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.