Electrical ignition device for regeneration of a particulate trap

Patent · Tue May 17 04:00:00 EDT 1988

OSTI ID:7033999

Rao, V D.N.; Aimone, M G

This patent describes an ignition system for regenerating a particulate trap for the exhaust gas of an internal combustion engine, the particulate trap having an entrance face for receiving a gaseous flow therethrough. The system comprises: (a) a flow guide means effective to direct exhaust gas to the entrance face during filtration by the trap and a gaseous flow during regeneration of the trap; (b) an open cell ceramic foam body extending across the flow guide means and having (i) radially outer ring surface in contact with the radially outer portion of the entrance face and (ii) an entrance surface remote from the particulate trap, the foam body having a pocket located radially inwardly of the ring surface to provide a separation, between the body and trap; (c) electrically energized resistance heating means stationed in a radially central portion of the open cell body adjacent the entrance surface effective to heat the body during regeneration to a temperature effective to ignite the ignitable particulate collection.

• Assignee: Ford Motor Co., Dearborn, MI
• Patent Number(s): US 4744216
• OSTI ID: 7033999
• Country of Publication: United States
• Language: English

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
CONTROL
ELECTRICAL EQUIPMENT
ENGINES
EQUIPMENT
EXHAUST GASES
FLUID FLOW
FLUIDS
GAS FLOW
GASEOUS WASTES
GASES
HEAT ENGINES
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
PARTICLES
PARTICULATES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
REGENERATION
WASTES