Exhaust manifold and method of making the same

Details Exhaust manifold and method of making the same Exhaust manifold and method of making the same

2005-08-23

2005-08-23

Jenkins, Daniel (Department: 1742)

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

C419S005000, C060S323000

Reexamination Certificate

active

06933056

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).

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