This exhaust gas purification device is provided with a pre-oxidation catalyst which is disposed in an exhaust gas passage located immediately after an engine mounted on a vehicle; and a muffler which is provided around the pre-oxidation catalyst and which reduces the noise of exhaust gas generated by the engine and discharges the exhaust gas. The muffler is configured to have an inlet which is connected to an upstream exhaust pipe located immediately after the engine and into which exhaust gas flows; and an outlet which is connected to a downstream exhaust pipe and from which the exhaust gas flowing into the muffler from the inlet is discharged after passing through the pre-oxidation catalyst.
Exhaust gas purification device
2021-12-23
Patent
Electronic Resource
English
IPC: | F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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