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Development of a New Generation Lean Burn Engine
Published October 06, 1992 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Autumn Conference
A new 1.61 DOHC 4-valve lean burn engine was introduced to Japanese market in 1992, which was adaptable to middle class vehicle even with automatic transmission. In this paper, a comparison is made between the previous Toyota's lean burn engine and the new one. Further description is given upon economy and exhaust emission performances of new lean burn engine, which are achieved through technologies such as a new intake port design and a new lean mixture feedback control system with combustion pressure sensor