초록 ▼

A collection device for collecting, under electrical control, particles (10) in an exhaust from a diesel engine is disclosed. The device has a needle electrode (8) having a needle tip (8a) for charging up the particles (10) by creating a corona discharge around the needle tip (8a) collecting electro

A collection device for collecting, under electrical control, particles (10) in an exhaust from a diesel engine is disclosed. The device has a needle electrode (8) having a needle tip (8a) for charging up the particles (10) by creating a corona discharge around the needle tip (8a) collecting electrode (11) for collecting the charged particles (10a) by electrostatic force and a high voltage power source (13) for applying prescribed high voltage between the needle electrode (8) and the collecting electrode (11), the high voltage power source (13) electrically being connected with the needle electrode (8) and the collecting electrode (11).

대표청구항 ▼

[ What is claimed is:] [1.] A diesel engine exhaust particle collection device for collecting, under electrical control, particles in an exhaust from a diesel engine, comprising:a needle electrode having a needle tip for charging up said particles by creating a corona discharge around said needle ti

[ What is claimed is:] [1.] A diesel engine exhaust particle collection device for collecting, under electrical control, particles in an exhaust from a diesel engine, comprising:a needle electrode having a needle tip for charging up said particles by creating a corona discharge around said needle tip;a collecting electrode for collecting said charged particles by electrostatic force;a deflection electrode for imparting deflection force to said charged particles towards said collecting electrode;a high voltage power source for applying a prescribed high voltage between said needle electrode and said collecting electrode and between said deflection electrode and said collecting electrode;said needle electrode being fixed to a tip of said deflection electrode;said deflection electrode being rod-shaped and larger in diameter than said needle electrode, a shoulder portion being formed thereby;wherein exhaust gas passing close to said needle electrode is disturbed in flow by said shoulder portion and forced to stay for a longer period of time in said corona discharge.