Nissan's emission control systems to meet Japanese automotive emissions standards. (5th August 2014)

• Record Type: Journal Article
• Authors: Onoda, M.
• Is Part Of: International journal of vehicle design. Volume 1:Number 5(1981)
• Page Start: 454
• Page End: 466
• Publication Date: 2014-08-05
• Subjects: vehicle design -- engine design -- internal combustion engine -- emission control -- NOx reduction -- exhaust gas re–circulation -- EGR -- three–way catalyst system -- electronically controlled fuel–injection system -- stabilisation of combustion -- fuel economy -- driveability -- O2 sensors -- fast–burn engine -- oxidation catalyst -- Nissan; Motor vehicles -- Design and construction -- Periodicals; 629.231
• Languages: English
• ISSNs: 0143-3369

Abstract

The Nissan Motor Company introduced the Nissan Anti–Pollution System (NAPS) in 1975 in response to a tightening of the Japanese emission control standards. The more stringent standards of 1978, requiring an NOx reduction of at least 80%, made a further improvement of NAPS necessary. To effect this improvement Nissan carried out a series of studies. The stabilisation of combustion and the effective induction of heavy exhaust gas re–circulation (EGR) were studied with the aim of reducing NOx with a heavy EGR. A study of a three–way catalyst system was also made with a view to reducing NOx after emission from the cylinder. As a result of these studies, Nissan's models were equipped with the three most appropriate NAPS systems. These systems are described.