Title:
SPARK IGNITION INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JPS5334005
Kind Code:
A
Abstract:
ENGINE Hydrocarbon and carbon monoxide emission of an internal combustion engine fitted with a non-catalytic thermal exhaust reactor is substantially lowered by operating the engine lean during normal modes of engine operation and switching to rich operation during idle using restricted air injection such that the idle exhaust contains about 2-5 volume percent oxygen.
Inventors:
FUREDERITSUKU JIEI MAASHII
JIEFURII SHII HAMIRUTON
JIEFURII SHII HAMIRUTON
Application Number:
JP7845577A
Publication Date:
March 30, 1978
Filing Date:
June 30, 1977
Export Citation:
Assignee:
ETHYL CORP
International Classes:
F02B75/10; F01N3/22; F01N3/30; F02B1/06; F02D33/00; F02B1/04; (IPC1-7): F01N3/10; F02B75/10; F02D33/00
Domestic Patent References:
| JPS48103926A | 1973-12-26 | |||
| JPS517777A | 1976-01-22 | |||
| JPS5141107A | 1976-04-06 | |||
| JPS4532963Y1 | 1970-12-16 |