초록 ▼

A regeneration system for an exhaust gas cleaning device disposed in an exhaust emission path of an internal combustion engine has an exhaust gas cleaning honeycomb filter and a heating element for the filter, wherein the filter is a checkered SiC honeycomb filter having a given cell structure, and

A regeneration system for an exhaust gas cleaning device disposed in an exhaust emission path of an internal combustion engine has an exhaust gas cleaning honeycomb filter and a heating element for the filter, wherein the filter is a checkered SiC honeycomb filter having a given cell structure, and the heating element is a heater or a glow plug when using a fuel containing fuel additive.

대표청구항 ▼

1. A regeneration system for an exhaust gas cleaning device disposed in an exhaust emission path of an internal combustion engine comprising an exhaust gas cleaning honeycomb filter for collecting particulates included in the exhaust gas and a heating means for the exhaust gas cleaning honeycomb fil

1. A regeneration system for an exhaust gas cleaning device disposed in an exhaust emission path of an internal combustion engine comprising an exhaust gas cleaning honeycomb filter for collecting particulates included in the exhaust gas and a heating means for the exhaust gas cleaning honeycomb filter, said filter is a checked honeycomb filter made of a porous silicon carbide sintered body and having a cell structure that a cell number per square inch is not less than 100 cells and a thickness of a cell wall is not more than 0.43 mm, wherein said internal combustion engine uses a gas oil containing a fuel additive for controlling an amount of particulates produced in the exhaust gas, and said heating means is selected from a heater and a glow plug and disposed in front of an upstream end face of the filter to heat the exhaust gas and to obtain a particulate burning temperature of at least 150.degree. C. sufficient for attaining a filter regeneration ratio of not less than 80%.