Patent ID: 8935914
Filing Date: 2015-01-20
Classification: F01N,F02D

Abstract:
1. An exhaust device comprising: an exhaust manifold which is connected to each of exhaust ports of a multicylinder internal combustion engine and which collects exhaust gases from the each of exhaust ports; an-upstream-side cone of a catalyst which is connected to the exhaust manifold and purifies the exhaust gases; an exhaust gas sensor that is provided in the upstream-side cone; an outer shell that is superposed on an outer side of the upstream-side cone; and a sensor chamber that is formed between the upstream-side cone and the outer shell, wherein the upstream-side cone is provided with a flow outlet through which the sensor chamber is communicated with an inside of the upstream-side cone, and wherein an inflow channel is formed between the upstream-side cone and the outer shell, the inflow channel having an opening that opens inside the exhaust manifold so as to communicate with the sensor chamber.