EXHAUST GAS CLEANING APPARATUS WITH IMPROVED CONFIGURATION ENSURING PROPER INJECTION OF REDUCING AGENT

摘要

An exhaust gas cleaning apparatus for cleaning the exhaust gas from an internal combustion engine includes: an exhaust gas passage through which the exhaust gas flows; a reducing agent injector that injects a reducing agent into the exhaust gas passage; and a reduction catalyst that is provided in the exhaust gas passage downstream of the reducing agent injector to promote, at least, a reduction reaction between a component of the exhaust gas and the reducing agent. The exhaust gas passage includes a bent portion formed with a bend. The reducing agent injector is provided on the outside of the bend of the bent portion to inject the reducing agent in a direction that deviates from a tangent line, which is tangent to a central axis line of the bent portion at a downstream-side end of the bent portion, toward the inside of the bend of the bent portion.