Wall quench and flammability limit effects on exhaust hydrocarbon emission. Final technical report, Phase 8, March 1, 1983-February 28, 1984

Technical Report · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5036523

Quinn, C; Smith, K

This report documents the concluding efforts at the Engineering Sciences Laboratory of TRW on two specific areas of current research activity within the more general context of proposed lean-burn operation of Otto-cycle-type automotive engines. These areas are: (1) achievement of knock-free performance, both under available fuels and current compression ratios and also under higher-octane fuels (e.g., alcohols) and higher-compression-ratio design (for greater thermal efficiency); and (2) identification of counterstrategies for two-wall (crevice-type) quenching of flame propagation, a phenomenon now widely acknowledged to be the major source of unburned-hydrocarbon emissions exhausted from homogeneous-charge cyclinders. There are certainly other highly active areas of research in Otto-cycle engines, such as turbocharging, ignition devices, and valve design, but the two above-cited topics were the topics of this project.

• Research Organization: TRW Space and Technology Group, Redondo Beach, CA (USA). Engineering Sciences Lab.
• DOE Contract Number: AC04-78ET13329
• OSTI ID: 5036523
• Report Number(s): DOE/ET/13329-T2; ON: DE84009754
• 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
ALCOHOLS
COMPRESSION RATIO
CONTROL
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLAME PROPAGATION
FLOW REGULATORS
HEAT ENGINES
HYDROCARBONS
HYDROXY COMPOUNDS
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
KNOCK CONTROL
ORGANIC COMPOUNDS
QUENCHING
SPARK IGNITION ENGINES
VALVES