Exhaust device

摘要

An exhaust device includes: an exhaust manifold, an upstream-side cone of a catalyst, an exhaust gas sensor, an outer shell, and a sensor chamber. Between the upstream-side cone and the outer shell, an inflow channel is formed. The inflow channel has an opening that opens inside the exhaust manifold so as to communicate with the sensor chamber.

主权项

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.