To provide an exhauster of a motor vehicle which utilizes waste heat to improve exhaust emission control performance, and to provide an engine exhaust system and a motor vehicle.SOLUTION: An exhauster 50 of a motor vehicle includes: upstream side exhaust pipes 53, 54 connected to an exhaust port of a cylinder head 32 of an engine 23; an inflow head chamber 57 connected to end parts of the upstream side exhaust pipes 53, 54; a purification chamber 56 in which an inflow port opens in the inflow head chamber 57 and a catalyzer is housed; and a downstream side exhaust pipe 55 connected to the outflow side of the purification chamber 56. A catalyst case 52 having the inflow head chamber 57 and the purification chamber 56 is disposed in front of and below the cylinder head 32 and above a lower end of a crank case 34.SELECTED DRAWING: Figure 5
【課題】排熱を活用して排気浄化性能を向上させた自動二輪車の排気装置、エンジン排気系統及び自動二輪車を提供する。【解決手段】自動二輪車の排気装置50は、エンジン23のシリンダヘッド32の排気ポートに接続される上流側排気管53,54と、上流側排気管53,54の端部に接続される流入ヘッドチャンバ57と、流入ヘッドチャンバ57に流入口が開口し内部に触媒体が収納された浄化チャンバ56と、浄化チャンバ56の流出側に接続される下流側排気管55と、を備え、流入ヘッドチャンバ57及び浄化チャンバ56を有する触媒ケース52が、シリンダヘッド32の前方かつ下方であって、クランクケース34の下端よりも上方に配設された。【選択図】 図5
EXHAUSTER OF MOTOR VEHICLE, ENGINE EXHAUST SYSTEM, AND MOTOR VEHICLE
自動二輪車の排気装置、エンジン排気系統及び自動二輪車
2020-01-23
Patent
Elektronische Ressource
Japanisch
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 / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
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