Insulated exhaust manifold

Details Insulated exhaust manifold Insulated exhaust manifold

F - Mech Eng,Light,Heat,Weapons

02

F

123/250

F02F 1/42 (2006.01) F01N 13/10 (2010.01)

Patent

CA 1096725

-15- INSULATED EXHAUST MANIFOLD Abstract An exhaust manifold (10) for an internal combustion engine is provided with internal insulation (26) to maintain the outside skin temperature preferably below 450°F (232°C). The manifold (10) is provided with an exhaust conduit or lining (24) comprised of interfitting relatively axially movable sections in contact with the exhaust gases. A low specific gravity or porous sleeve of insulating material (26) is fitted in slightly spaced relationship around the exhaust conduit (24). The sleeve of insulating material (26) may be wrapped to prevent the metal of the outer cast manifold (22) housing from penetrating the insulation. Each section (32,34,36) of the exhaust conduit (24) has a branch (46) for connection to a flanged nipple (50) which is permitted some limited movement relative to the manifold housing (22) when connected to the exhaust ports of the engine.

320133

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