Control of automotive exhaust emission by modifications of the carburetion system

Journal Article · · SAE Prog. Technol.; (United States)

DOI:https://doi.org/10.4271/660114· OSTI ID:6647884

Kopa, R D

Carburetion of a lean air-fuel mixture is proposed for reduction of all major contaminants emitted from automotive exhaust. Since the mixture lean limits tolerable by an internal combustion engine equipped with conventional carburetor make this approach unsuitable for nitrogen oxides control, exhaust gas recirculation as a supplemental control method is considered. Good fuel atomization and homogeneous mixing with air prior to admission into the inlet manifold eliminate power surging and extend the mixture lean limit of satisfactory engine operation. These tasks can be accomplished by pneumatic fuel atomization carburetion. Experimental results indicate effective reduction of unburned hydrocarbons, carbon monoxide, and nitrogen oxides as well as good engine performance at air-fuel ratio settings over 18:1.

• Research Organization: Univ. of California, Los Angeles
• OSTI ID: 6647884
• Journal Information: SAE Prog. Technol.; (United States), Journal Name: SAE Prog. Technol.; (United States) Vol. 12; ISSN SAPTA
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101 -- Internal Combustion Engines-- Spark-Ignition
330700* -- Advanced Propulsion Systems-- Emission Control
AIR POLLUTION CONTROL
AUTOMOBILES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBURETORS
CHALCOGENIDES
DATA
DESIGN
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
EXPERIMENTAL DATA
FLUIDS
FUEL SYSTEMS
FUEL-AIR RATIO
GASEOUS WASTES
GASES
HEAT ENGINES
HYDROCARBONS
INFORMATION
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
VEHICLES
WASTES