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Exhaust particle removing system for an internal combustion engine

Patent ·
OSTI ID:5196459
;
An exhaust particle removing system is described for an internal combustion engine, comprising: (a) a filter disposed in an engine exhaust passage for trapping particles suspended in exhaust gas; (b) a burner for burning off the particles deposited on the filter; (c) means for sensing selectively a pressure in the exhaust passage at a point upstream of the filter and a pressure difference in the exhaust passage across the filter; (d) means for determining a ratio between the upstream pressure and the pressure difference; and (e) means for operating the burner on the basis of the ratio.
Assignee:
Nissan Motor Co., Ltd.
Patent Number(s):
US 4610138
OSTI ID:
5196459
Country of Publication:
United States
Language:
English

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Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
330705 -- Emission Control-- Particulates
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
BURNERS
CALCULATION METHODS
CHEMICAL REACTIONS
COMBUSTION
CONTROL
ENGINES
EXHAUST GASES
EXHAUST SYSTEMS
FILTERS
FILTRATION
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
OXIDATION
PARTICLES
PARTICULATES
POLLUTION CONTROL
PRESSURE MEASUREMENT
REMOVAL
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
WASTES