Patent ID: 8650867
Filing Date: 2014-02-18
Classification: F01N

Abstract:
1. An exhaust component for receiving exhaust gas from a cylinder head of an internal combustion engine, the exhaust component comprising: a component body defining a gas chamber and first and second runners feeding the gas chamber, the first and second runners being integrally formed with the gas chamber, the component body being structurally configured to be mounted to the cylinder head, the first and second runners being fluidly coupled with a source of exhaust gas; and a shield insert disposed in the gas chamber for dividing the gas chamber into a first flow channel inside the shield insert and a second flow channel at least partially surrounding the first flow channel and defined by the shield insert and the component body, the first and second flow channels receiving exhaust gas from the first and second runners, respectively, wherein the first runner and the first flow channel define a first exhaust flow path, and wherein the second runner and the second flow channel define a second exhaust flow path, and wherein the first and second exhaust flow paths are fluidly isolated from each other, and wherein the component body is formed from a first material and the shield insert is formed from a second material that is more heat-resistant than the first material.