Particulate trap system for engine exhaust using electrically powered regeneration

Patent · Tue Jan 07 04:00:00 EST 1986

OSTI ID:6068072

Rao, V D.N.; Wade, W R; Aimone, M G

This patent describes an apparatus for removing oxidizable particulates from an automotive engine having a driven output part, and consists of: a) a particulate filter trap disposed in such stream; b) electrically heated elements proximate to the filter to promote oxidation of particulates collected in the filter; c) an alternator for converting the motion of the engine driven output part to a supply of electrical energy which can be connected to the elements and effective to heat the elements to at least the incineration temperature of the particulates while the engine is at least at an idle condition; d) electrically actuated means for diverting the stream of exhaust gases away from at least a portion of the filter trap and for delayedly admitting a flow of a fluid medium effective to transfer heat between the elements and collected particulates and to supply oxygen for supporting oxidation of the particulates.

• Assignee: Ford Motor Co., Dearborn, MI
• Patent Number(s): US 4562695
• OSTI ID: 6068072
• 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 ABATEMENT
ALTERNATORS
CHEMICAL REACTIONS
COMBUSTION
DESIGN
ELECTRIC GENERATORS
ELECTRIC HEATING
ENERGY TRANSFER
ENGINES
EXHAUST GASES
EXHAUST SYSTEMS
FILTERS
FLUID FLOW
FLUIDS
GASEOUS WASTES
GASES
HEAT TRANSFER
HEATING
OXIDATION
PARTICLES
PARTICULATES
POLLUTION ABATEMENT
THERMOCHEMICAL PROCESSES
VEHICLES
WASTES