|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||60/322 ; 60/323|
|발명자 / 주소|
|인용정보||피인용 횟수 : 44 인용 특허 : 0|
An exhaust manifold for conducting the heated exhaust gas from an internal combustion engine. The exhaust manifold has a thin noncast metal inner layer, a thicker sheet metal outer layer, and a layer of insulating material, preferably ceramic beads, between the inner and outer layers. The method of making the exhaust manifold is also disclosed. The exhaust manifold is damped, insulated, and permits quicker light off of the catalytic converter.
An exhaust manifold for conducting heated exhaust gas from an internal combustion engine to an exhaust system, said exhaust manifold having at least one inlet and at least one outlet, said exhaust manifold comprising an inner layer of noncast metal which defines an exhaust gas passage and a surrounding outer layer of sheet metal and having means associated with said inlet for mounting said exhaust manifold to the head of an internal combustion engine, said outlet being adapted to be connected with said exhaust system, one of said layers having a first pr...