Internal combustion engine and method of reducing toxic compounds in the exhaust gases therefrom

Patent · Tue Jun 13 04:00:00 EDT 1978

OSTI ID:7095814

Kuroda, H; Nakajima, Y; Hayashi, Y; Nagumo, S I

A multiple-cylinder spark-ignition internal combustion engine for an automotive vehicle is described in which the ratio of the inactive compounds in the mixture gases produced in each combustion chamber to the fuel component in the combustible mixture inducted into the chamber is maintained within a predetermined range and the spark plug for each engine cylinder is arranged so that the flame travel from the spark plug is reduced to a minimum for promoting the combustion reaction to proceed in the least possible time. Improvements are further made in respect of the exhaust gas recirculation rate, the location and measurements of the spark plug, the configurations and measurements of the engine cylinder and the arrangement of the intake and exhaust ports so as to reduce the concentrations of toxic compounds in the exhaust gases without impairing the performance efficiency of the engine.

• Assignee: Nissan Motor Co., Ltd.
• Patent Number(s): US 4094286
• OSTI ID: 7095814
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
AIR POLLUTION CONTROL
AUTOMOBILES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
DESIGN
ENGINES
EQUIPMENT
EXHAUST GASES
GASEOUS WASTES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
TOXIC MATERIALS
VEHICLES
WASTES