Engine exhaust particulate ignitor construction

Patent · Tue Sep 22 00:00:00 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
• Resource Relation: Patent File Date: Filed date 20 Mar 1985
• Country of Publication: United States
• Language: English

Related Subjects

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