Insulated exhaust manifold

Details Insulated exhaust manifold Insulated exhaust manifold

1978-02-15

1980-01-08

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Having vibration attenuating, or expansion and contraction...

60323, 164 98, 164108, F01N 710

Patent

active

041821220

ABSTRACT:
An exhaust manifold for an internal combustion engine is provided with internal insulation so as to maintain the outside skin temperature preferably below 450.degree. F. The manifold is provided with an exhaust conduit or lining that is comprised of interfitting relatively axially movable sections in contact with the exhaust gases. A low specific gravity or porous sleeve of insulating material is fitted in slightly spaced relationship around the exhaust conduit. The sleeve of insulating material may be wrapped to prevent the metal of the outer cast manifold housing from penetrating the insulation. Each section of the exhaust conduit has a branch for connection to a flanged nipple which is permitted some limited movement relative to the manifold housing when connected to the exhaust ports of the engine.

REFERENCES:
patent: 3486326 (1969-12-01), Hermes
patent: 3727410 (1973-04-01), Scheitlin
patent: 3775979 (1973-12-01), Scheitlin
patent: 3864908 (1975-02-01), LaHaye
patent: 3901029 (1975-08-01), Kondo

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