NOx reduction is compatible with fuel economy through Toyota's lean combustion system

Book · Tue Jan 01 04:00:00 EST 1985

OSTI ID:6045381

Kimbara, Y; Shinoda, K; Koide, H; Kobayashi, N

T-LCS (Toyota Lean Combustion System) has made the engine possible to be operated with very lean mixture over 22 of air-fuel ratio, and achieved the NOx reduction and the improvement of fuel economy. This system has two features, one of which is the feed-back control of lean mixture strength using the lean mixture sensor that has been newly developed. The other feature is the improved combustion through the swirl control valve and individual timing control of fuel injection for each cylinder. The influence of the test patterns, the vehicle weight and the air-fuel ratio on the exhaust emissions of lean combustion system has been examined and the results are reported in this paper.

• OSTI ID: 6045381
• Report Number(s): TP-851210
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
330701 -- Emission Control-- Nitrogen Oxides
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
CHALCOGENIDES
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
CONTROL EQUIPMENT
CYLINDERS
DATA
DISPERSIONS
ENGINES
EQUIPMENT
EXHAUST GASES
EXPERIMENTAL DATA
FLOW REGULATORS
FLUIDS
FUEL ECONOMY
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
GASEOUS WASTES
GASES
HEAT ENGINES
INFORMATION
INTERNAL COMBUSTION ENGINES
KINETICS
MIXTURES
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POLLUTION ABATEMENT
REACTION KINETICS
TESTING
VALVES
VEHICLES
WASTES
WEIGHT