发动机dpf可控再生系统

Engine diesel particulate filter (DPF) controllable regeneration system

Abstract

The utility model discloses an engine diesel particulate filter (DPF) controllable regeneration system. The engine DPF controllable regeneration system comprises a DPF passive regeneration system and a controllable initiative regeneration system. The DPF passive regeneration system comprises a diesel oxidation catalyst (DOC), a DPF, a DPF exit pressure sensor and a DOC entry pressure sensor, wherein the DOC and the DPF are arranged on an engine exhaust system pipeline, the DPF exit pressure sensor is arranged on an exit of the DPF, and the DOC entry pressure sensor is arranged on an entry of the DOC. Output ends of the DPF exit pressure sensor and the DOC entry pressure sensor are respectively connected to an electronic control unit (ECU). The controllable initiative regeneration system comprises a combustor, an oil atomizer of the combustor and an oil pump. The combustor is arranged on the engine exhaust system pipeline and located on the exhaust upstream of the DOC. The oil atomizer of the combustor is arranged on the engine exhaust system pipeline, located on the exhaust upstream of the combustor, and connected with the oil pump through an oil line. Due to the fact that the controllable regeneration system is arranged on the base of an existing DPF passive regeneration system, regeneration reliability and usage universality can be guaranteed, and regeneration cost is reduced at the same time.
本实用新型公开了一种发动机DPF可控再生系统。该系统包括:DPF被动再生系统和可控主动再生系统;其中,DPF被动再生系统包括设置在发动机排气系统管路上的:DOC和DPF,以及设置在DPF出口的DPF出口压力传感器和设置在DOC入口的DOC入口压力传感器,DPF出口压力传感器和DOC入口压力传感器的输出端分别连接到ECU;可控主动再生系统包括:燃烧器、燃烧器喷油器和油泵,燃烧器设置在发动机排气系统管路上,且位于DOC的排气上游,燃烧器喷油器设置在发动机排气系统管路上,且位于燃烧器的排气上游,燃烧器喷油器通过油路与油泵相连接。由于该发动机DPF可控再生系统在现有DPF被动再生系统的基础上增加了可控再生系统,保证了再生可靠性和使用广泛性的同时降低了再生成本。

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    CN-103422946-ADecember 04, 2013广西玉柴机器股份有限公司DPF controllable regeneration system of engine
    CN-104033213-ASeptember 10, 2014斗山工程机械(中国)有限公司一种工程机械及其dpf再生系统
    CN-105067496-ANovember 18, 2015凯龙高科技股份有限公司DPF carrier carbon loading amount test apparatus
    CN-105264193-AJanuary 20, 2016Mtu 腓特烈港有限责任公司用于运行废气后处理装置的方法和用于控制废气后处理装置的机构以及废气后处理装置、马达控制器和带有废气后处理装置的内燃机