JPS63104619U

JPS63104619U -

Info

Publication number: JPS63104619U
Application number: JP19870986U
Authority: JP
Priority date: 1986-12-26
Filing date: 1986-12-26
Publication date: 1988-07-06

Description

[Brief explanation of the drawing]

第１図は従来の排気ガスろ過装置の概略図、第
２図は本考案による一実施例の排気ガスろ過装置
の概略図である。１……デイーゼルエンジン、２……排気通路、
３……パテイキユレートフイルタ、４……ヒータ
、５……空気通路、８……ターボチヤージヤ、８
１……タービン、８２……コンプレツサ、９……
吸気通路、１０……バイパス通路、１０１……バ
イパス通路用シヤツタ、１１……排気通路用シヤ
ツタ、１２……電磁弁。 FIG. 1 is a schematic diagram of a conventional exhaust gas filtration device, and FIG. 2 is a schematic diagram of an exhaust gas filtration device according to an embodiment of the present invention. 1... Diesel engine, 2... Exhaust passage,
3... Particular filter, 4... Heater, 5... Air passage, 8... Turbo charger, 8
1... Turbine, 82... Compressor, 9...
Intake passage, 10...Bypass passage, 101...Shutter for bypass passage, 11...Shutter for exhaust passage, 12...Solenoid valve.

Claims

[Scope of utility model registration request]

A particulate filter is provided downstream of the turbine in the exhaust passage of the engine and has a turbocharger having a turbine in the exhaust passage of the engine and a compressor in the intake passage, and the particulate filter is provided with a heater on the downstream side; An exhaust passage shutter for opening and closing the exhaust passage provided downstream from the filter, and connected at both ends to parts of the exhaust passage upstream from the particulate filter and downstream from the exhaust passage shutter, respectively. An exhaust gas filtration device comprising a bypass passage, a bypass passage shutter for opening and closing the bypass passage, and an air passage for supplying air to the exhaust passage between the particulate filter and the exhaust passage shutter. The exhaust gas filtration device is characterized in that the air passage is openably and closably connected to the intake passage downstream of the compressor.