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Technical possibility of the practice of the 1976 regulation: comment on the reply of the special committee

Journal Article:

Abstract

The 1976 Japanese regulations for automobile exhaust are reviewed. Topics include: The meaning of the 1976 regulations, a comparison with those in the United States, problems with the regulations, the present status of technical developments to achieve the regulations, problems related to stratified charge engines, and attitudes and techniques of the big car makers. In an appendix, information on the Kumagaya engines, fuel consumption of various engines, and problems of vibration are presented. The main purpose of the 1976 regulations is to decrease the amount of nitrogen oxides in the exhaust gas to 0.25 g/km. The average carbon monoxide, hydrocarbon, and NOx levels for the Honda stratified charge engines are 1.4, 0.125, and 0.5 g/km. It is possible to reduce this content further. However, the driving characteristics of the cars deteriorate rapidly at lower NOx levels. According to the opinions of Toyota and Nissan, the two largest car makers in Japan, the practical NOx content is 1.0 to 1.1 g/kg from the standpoint of the technological level of the Japanese car industry in 1976.
Authors:
Publication Date:
Jan 01, 1975
Product Type:
Journal Article
Reference Number:
EDB-78-129470
Resource Relation:
Journal Name: Kogai Kenkyu; (Japan); Journal Volume: 4:4
Subject:
54 ENVIRONMENTAL SCIENCES; EXHAUST GASES; POLLUTION REGULATIONS; FEASIBILITY STUDIES; AUTOMOBILES; CARBON MONOXIDE; FUEL CONSUMPTION; HYDROCARBONS; INDUSTRY; JAPAN; MECHANICAL VIBRATIONS; NITROGEN OXIDES; STRATIFIED CHARGE ENGINES; ASIA; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; ENERGY CONSUMPTION; ENGINES; GASEOUS WASTES; INTERNAL COMBUSTION ENGINES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; REGULATIONS; VEHICLES; WASTES; 500600* - Environment, Atmospheric- Regulations- (-1989)
OSTI ID:
6621562
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: KOKED
Submitting Site:
APA
Size:
Pages: 17-29
Announcement Date:
Dec 01, 1978

Journal Article:

Citation Formats

Nishimura, H. Technical possibility of the practice of the 1976 regulation: comment on the reply of the special committee. Japan: N. p., 1975. Web.
Nishimura, H. Technical possibility of the practice of the 1976 regulation: comment on the reply of the special committee. Japan.
Nishimura, H. 1975. "Technical possibility of the practice of the 1976 regulation: comment on the reply of the special committee." Japan.
@misc{etde_6621562,
title = {Technical possibility of the practice of the 1976 regulation: comment on the reply of the special committee}
author = {Nishimura, H}
abstractNote = {The 1976 Japanese regulations for automobile exhaust are reviewed. Topics include: The meaning of the 1976 regulations, a comparison with those in the United States, problems with the regulations, the present status of technical developments to achieve the regulations, problems related to stratified charge engines, and attitudes and techniques of the big car makers. In an appendix, information on the Kumagaya engines, fuel consumption of various engines, and problems of vibration are presented. The main purpose of the 1976 regulations is to decrease the amount of nitrogen oxides in the exhaust gas to 0.25 g/km. The average carbon monoxide, hydrocarbon, and NOx levels for the Honda stratified charge engines are 1.4, 0.125, and 0.5 g/km. It is possible to reduce this content further. However, the driving characteristics of the cars deteriorate rapidly at lower NOx levels. According to the opinions of Toyota and Nissan, the two largest car makers in Japan, the practical NOx content is 1.0 to 1.1 g/kg from the standpoint of the technological level of the Japanese car industry in 1976.}
journal = {Kogai Kenkyu; (Japan)}
volume = {4:4}
journal type = {AC}
place = {Japan}
year = {1975}
month = {Jan}
}