Exhaust manifold of internal combustion engine

摘要

Herein disclosed is an improved exhaust manifold for an internal combustion engine, which comprises an outer body of aluminium having a configuration corresponding to the exhaust manifold, and insulating layer of ceramic fiber disposed on the inner surface of the outer body for protecting the outer body from the heated exhaust gas, and a protecter incorporated with the insulating layer in a manner to maintain the disposition and configuration of the insulating layer.