Engine exhaust particulate ignitor construction

Patent · Tue Sep 22 04:00:00 EDT 1987

OSTI ID:5831216

Lupoli, P J; Mattis, D J

This patent describes a vibration-resistant exhaust-gas purification canister for installation in an exhaust line of an internal combustion engine in a vehicle, comprising in combination: (a) a generally tubular exhaust-gas casing having an open end, (b) an end fitting having a wide mouth removably connected to the open end of the exhaust-gas casing, and having an inlet port for connection to an exhaust line, (c) releasable fastening means joining the wide mouth of the fitting to the open end of the exhaust-gas casing so as to close off the open end, (d) a porous filter element in the path of the exhaust gas, the filter element trapping particulate matter carried in the exhaust gas, (e) a vibration-resistant, spiral, tightly wound igniting coil disposed between the porous filter element in the exhaust-gas casing and the inlet port of the fitting. The coil is located in a path along which the particulate-containing exhaust stream flows, for vaporizing at least some of the particulate matter in the stream whereby the resultant vaporized particulate matter can pass through the porous filter element with minimal clogging of the filter element, (f) means comprising and enclosing electrically-conducting annular casing, mounting the igniting coil on the end fitting with a face of the coil being exposed to the exhaust steam so as to increase the efficiency of the vaporizing that occurs. The enclosing casing is connected to an outer convolution of the coil and constituting a terminal thereof, and (g) electrical connection means for establishing a circuit from an electrical system of a vehicle to the inner convolution of the igniting coil.

• Assignee: Casco Products Corp., Bridgeport, CT
• Patent Number(s): US 4695429
• OSTI ID: 5831216
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330705* -- Emission Control-- Particulates
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
CONTROL
DESIGN
EFFICIENCY
ELECTRIC CONDUCTORS
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ENGINES
EQUIPMENT
EVAPORATION
EXHAUST GASES
EXHAUST SYSTEMS
FABRICATION
FASTENING
FILTERS
FILTRATION
FLUIDS
FOULING
GASEOUS WASTES
GASES
HEAT ENGINES
IGNITION
INSTALLATION
INTERNAL COMBUSTION ENGINES
JOINING
MATERIALS
PARTICLES
PARTICULATES
PHASE TRANSFORMATIONS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POROUS MATERIALS
PURIFICATION
REMOVAL
SEPARATION PROCESSES
WASTES