Cylinder head

Internal-combustion engines – Particular piston and enclosing cylinder construction – Cylinder head

Reexamination Certificate

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Details

C060S322000, C060S323000

Reexamination Certificate

active

07966986

ABSTRACT:
An exhaust system includes a cylinder head having a plurality of exhaust ports. Integrally formed with the cylinder head are a plurality of independent and separate tubes. The tubes are cast, molded or otherwise integrally formed with the exhaust ports of the cylinder head. The cylinder head and tubes eliminate the need for an exhaust flange, welding the tubes to the exhaust flange and securing the exhaust flange to the cylinder head. As a result, the exhaust system has less weight and improved performance over prior art cylinder head and exhaust assemblies.

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International Search Rep, Aug. 8, 2008, Metaldyne Company LLC.

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