To provide an exhaust emission control device of an engine which can properly detect exhaust pressure by suppressing a thermal influence of the engine or the like with respect to even a so-called longitudinal engine.SOLUTION: An exhaust emission control device of an engine is arranged in an exhaust passage 5a of the multicylinder engine 3 in which a plurality of cylinders is aligned in a vehicle fore-and-aft direction. The exhaust emission control device comprises an exhaust emission purification converter 51 including a DPF 53 arranged at an exhaust system side face 3c of the engine 3, and a pressure difference sensor 57 for detecting the fore-and-aft pressure of the DPF 53. The pressure difference sensor 57 comprises a sensor main body 571, and a pair of pressure pipes 572, 573 which are connected to an upstream-side pipe part 532 and a downstream-side pipe part 533 of the DPF 53 at their one-side end parts, respectively, and connected to the sensor main body 571 at the other end parts. The sensor main body 571 is attached to a front face upper part of the engine 3.SELECTED DRAWING: Figure 5
【課題】いわゆる縦置きエンジンについても、エンジン等の熱的影響を抑制して適正に排気圧力の検出を行うことができるエンジンの排気浄化装置を提供する。【解決手段】複数の気筒が車両前後方向に列設された多気筒エンジン3の排気通路5aに設けられる。エンジン3の排気系側面3cに配置されDPF53を含む排気浄化コンバータ51と、DPF53の前後圧力を検出する差圧センサ57とを備える。差圧センサ57は、センサ本体571と、一端部がDPF53の上流側管部532及び下流側管部533にそれぞれ接続されるとともに他端部がセンサ本体571に接続される一対の圧力パイプ572,573とを備える。センサ本体571は、エンジン3の前面上部に取り付けられている。【選択図】図5
EXHAUST EMISSION CONTROL DEVICE OF ENGINE
エンジンの排気浄化装置
2019-08-01
Patent
Electronic Resource
Japanese
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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