PARTICULATES TRAP FOR INTERNAL-COMBUSTION ENGINE

Japanese Patent JPS603420

A

PURPOSE:To maintain the exhaust pressure and exhaust pressure rise ratio on the upstream side of a particulates trap, below prescribed levels, by removing seals from a prescribed region of outer cells in the peripheral portion of the trap to open both the ends of the cells to extend through the trap. CONSTITUTION:Exhaust gas containing particulates and emitted from an engine flows into inlet-open cells and through-passage cells 12. The exhaust gas flowing into the inlet-open cells passes through thin porous walls into adjacent outlet- open cells and goes out from the downstream side of a particulates trap as the particulates are caught by filtration. The exhaust gas flowing into the through- passage cells 12 goes out, as it is, from their open outlet ports. Seals are removed from 1 to 15% of outer cells in a region extending at 60% or more of the distance from the center line of the trap to its peripheral surface, so that both the ends of 1 to 15% of the outer cells are open and the exhaust gas straightly flows through them.

WO/2006/070838	PLASMA GENERATING ELECTRODE AND PLASMA REACTOR
WO/2009/016896	EXHAUST PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE
JP4642549	Exhaust gas purification device

TOKURA NAOMI
USHIMURA MASAHARU

JP11007183A

January 09, 1985

June 21, 1983

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NISSAN MOTOR

F01N3/02; F01N3/022; (IPC1-7): F01N3/02

Tomijio Sasashima

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