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Monolith diesel exhaust filter with self-regeneration

Patent ·
OSTI ID:6027282
; ;
A self-regenerating diesel engine exhaust particulate filter is disclosed that is comprised of, in a preferred embodiment, porous ceramic walls defining filter surfaces between adjacent inlet and outlet passages and having electric heating wires in the inlet passages to periodically initiate incineration of collected particulates therein. A movable shield is preferably provided to restrict gas flow through the various passages during their respective periods of incineration so as to provide periodic regeneration with a minimum expenditure of external energy.
Assignee:
General Motors Corp
Patent Number(s):
US 4276066
OSTI ID:
6027282
Country of Publication:
United States
Language:
English

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Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
330705 -- Emission Control-- Particulates
AIR FILTERS
AIR POLLUTION CONTROL
CERAMICS
CHEMICAL REACTIONS
COMBUSTION
CONTROL
DIESEL ENGINES
EFFICIENCY
ELECTRIC HEATING
ENERGY EFFICIENCY
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST SYSTEMS
FILTERS
FLUID FLOW
FLUIDS
GAS FLOW
GASEOUS WASTES
GASES
HEAT ENGINES
HEATING
INTERNAL COMBUSTION ENGINES
OXIDATION
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
REGENERATION
SHIELDS
THERMOCHEMICAL PROCESSES
WASTES