Emission control system for a crackcase scavenged two-stroke engine operating near idle

Patent · Tue Jun 12 00:00:00 EDT 1990

OSTI ID:6884885

Albertson, W C; Fenton, D M; Reinke, P E; Stiles, S D

This patent describes a control system for reducing hydrocarbon emissions in the exhaust gas of a crankcase scavenged, two-stroke engine. It comprises: means for increasing the fuel per cylinder delivered to the engine, as operator demand for engine output power increases; means for restricting the delivered mass of air per cylinder to a value less than or equal to that delivered at unloaded engine idle, as engine output power is increased over a defined range of engine operation near idle.

• Assignee: General Motors Corp., Detroit, MI (USA)
• Patent Number(s): A; US 4932371
• Application Number: PPN: US 7-393189A
• OSTI ID: 6884885
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
330704 -- Emission Control-- Hydrocarbons
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION ABATEMENT
CONTROL SYSTEMS
ENGINES
EXHAUST GASES
FLUIDS
FUEL SYSTEMS
FUEL-AIR RATIO
GASEOUS WASTES
GASES
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
ORGANIC COMPOUNDS
POLLUTION ABATEMENT
WASTES