Exhaust skimming

Patent · Tue Feb 09 00:00:00 EST 1982

OSTI ID:5386825

Bull, J E

An exhaust gas treatment system and method, primarily for a motor vehicle having an internal combustion engine is disclosed. An expansion chamber is connected in a straight line to a first straight line portion of an exhaust conduit from the engine, with a second portion of the exhaust conduit extending in a straight line from the expansion chamber. The expansion chamber has a cross-sectional area 110% to 200% as large as the cross-sectional area of the exhaust conduit. First and second series of openings are provided in the expansion chamber substantially 180 degrees apart along the circumference of the expansion chamber, with the expansion chamber being mounted so that a plane containing the first and second series of openings is generally vertical. Pick-off conduits return carbon monoxide, hydrocarbon gases, and water vapors separated through the openings of the expansion chamber to the engine, the returning gases being filtered to at least remove the excess liquid therein. The excess liquid is vaporized, and the vapor is returned to the intake manifold of the engine, along with the hydrocarbon and/or carbon monoxide gases, which have a relative humidity of 60 to 100% wind return.

• Assignee: Texas Woods Instruments Inc
• Patent Number(s): US 4314446
• OSTI ID: 5386825
• Resource Relation: Patent File Date: Filed date 26 Sep 1979; Other Information: PAT-APPL-079175
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
EXHAUST RECIRCULATION SYSTEMS
DESIGN
INTERNAL COMBUSTION ENGINES
AIR POLLUTION CONTROL
AUTOMOBILES
CARBON MONOXIDE
EXHAUST GASES
EXPANSION CHAMBERS
WATER VAPOR
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CLOUD CHAMBERS
CONTROL
ENGINES
EQUIPMENT
EXHAUST SYSTEMS
FLUIDS
GAS TRACK DETECTORS
GASEOUS WASTES
GASES
HEAT ENGINES
MEASURING INSTRUMENTS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
RADIATION DETECTORS
VAPORS
VEHICLES
WASTES
330100* - Internal Combustion Engines
330702 - Emission Control- Carbon Monoxide
330704 - Emission Control- Hydrocarbons