Exhaust apparatus for internal combustion engine

摘要

An exhaust apparatus for an internal combustion engine includes a first exhaust collecting section, a first exhaust passage, a first exhaust sensor, and a rib. The first exhaust passage is connected to the first exhaust collecting section and has a curved shape to change a flow direction of the exhaust gas from a direction in which the exhaust gas is ejected from each of first cylinders. The first exhaust passage includes an outer wall provided on a radially outer side of the curved shape. The rib is provided on the outer wall of the first exhaust passage and extends along a direction perpendicular to a direction in which the exhaust gas flows. The rib is positioned downstream from the first exhaust sensor.

主权项

1. An exhaust apparatus for an internal combustion engine, the exhaust apparatus comprising:
a first exhaust collecting section including first exhaust ports extending from a plurality of first cylinders in the internal combustion engine, the first exhaust ports being combined to collect exhaust gas ejected from the plurality of first cylinders; a first exhaust passage through which the exhaust gas from the exhaust collecting section is to flow, the first exhaust passage being connected to the first exhaust collecting section and having a curved shape to change a flow direction of the exhaust gas from a direction in which the exhaust gas is ejected from each of the first cylinders, the first exhaust passage including an outer wall provided on a radially outer side of the curved shape; a first exhaust sensor disposed on the outer wall of the first exhaust passage and including a first detector configured to detect a constituent of the exhaust gas, the first detector protruding from the outer wall of the first exhaust passage into an inside of the first exhaust passage; and a rib protruding outward from the outer wall of the first exhaust passage, the rib being positioned downstream from the first exhaust sensor, wherein the rib extends a first distance along the outer wall in a direction perpendicular to a direction in which the exhaust gas is to flow, the rib extends a second distance along the outer wall in the direction in which the exhaust gas is to flow, and the first distance is greater than the second distance.