Low energy regeneration system for particulate trap for an internal combustion engine

Patent · Tue Jan 12 04:00:00 EST 1988

OSTI ID:5392701

Rao, V D.N.; Wade, W R

A method of generating a particulate trap of an internal combustion engine having exhaust gas arranged to pass through the trap for making the collection is described comprising: (a) reducing the temperatures of the exhaust gas received from a primary exhaust conduit to facilitate condensation of hydrocarbons on the particulates; (b) dividing the exhaust flow between parallel exhaust conduits; (c) interposing a trap in each of the parallel exhaust conduits; (d) selectively syphoning a portion of the exhaust gas around the heat exchanger without substantial loss of heat to thereby expose the portion to the frontal face of one trap; and (e) augmenting the temperature of the syphoned exhaust gas, if needed, to ignite the particulates of the one trap.

• Assignee: Ford Motor Co., Dearborn, MI
• Patent Number(s): US 4720972
• OSTI ID: 5392701
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CHEMICAL REACTIONS
ENGINES
EVAPORATION
EXHAUST GASES
EXHAUST SYSTEMS
FILTERS
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
HEAT EXCHANGERS
INTERNAL COMBUSTION ENGINES
OXIDATION
PARTICLES
PARTICULATES
PHASE TRANSFORMATIONS
REGENERATION
REGENERATORS
WASTES