The present invention provides a technique capable of improving maintainability even when a diesel engine is provided with both a DPF and an SCR as exhaust gas aftertreatment devices. The present invention is a diesel engine (1) provided with an exhaust gas aftertreatment device (10) for purifying exhaust gas. An exhaust gas aftertreatment device (10) is provided with: a DPF (20) that collects particulate matter contained in exhaust gas; and an SCR (30) for reducing nitrogen oxides contained in the exhaust gas by adding urea. The DPF (20) is disposed so as to extend in the engine front-rear direction, which is a direction parallel to the crankshaft (CS), while the SCR (30) is disposed so as to extend in the engine width direction at a position further to the rear side in the engine front-rear direction than the DPF (20).
本发明提供一种在柴油发动机中即使具备DPF及SCR这两者作为排气后处理装置的情况也能够提升维护性的技术。本发明是具备对排气进行净化的排气后处理装置(10)的柴油发动机(1)。排气后处理装置(10)具有:DPF(20),捕集废气中包含的颗粒状物质;和SCR(30),通过添加尿素来还原废气中包含的氮氧化物。DPF(20)配置为在与曲轴(CS)平行的方向亦即发动机前后方向延伸,另一方面,SCR(30)配置为在比DPF(20)靠发动机前后方向后侧的位置在发动机宽度方向延伸。
Diesel engine
柴油发动机
2023-08-01
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
Tema Archive | 1983