Air gap-insulated exhaust manifold for internal combustion...

Details Air gap-insulated exhaust manifold for internal combustion... Air gap-insulated exhaust manifold for internal combustion...

2007-09-25

2007-09-25

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Common receiver having inlets from plural cylinder

C060S322000

Reexamination Certificate

active

10980647

ABSTRACT:
An air gap-insulated exhaust manifold for internal combustion engines. The manifold includes a flange with openings for fastening elements and further openings, which align with the cylinder exhaust ports of the internal combustion engine. A gas-tight outer shell is connected to the flange. An inner shell is provided with openings, which align with the cylinder exhaust ports of the internal combustion engine. The outer shell has a trough-shaped lower part and a hood-shaped upper part, which is welded gas-tight to the lower part. The inner shell has a trough-shaped lower part and a hood-shaped upper part. The outer shell is connected to the flange in a gas-tight manner. The inner shell is firmly attached to the outer shell at only one place.

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