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An Analysis of Wall Flow and Behavior of Fuel in Induction Systems of Gasoline Engines
The transient performance of an engine generally depends on the volume of wall flow and behavior of fuel in the induction system which is composed of the intake manifold and the intake port.
An experimental technique has been developed for estimating these phenomena in a gasoline engine, which employs a meter for measuring the air-fuel mixture ratio.
Using this technique we analyzed single point and multipoint injection systems, and determined the differences in the volume of fuel associated with wall flow.
The effects of the shape and specifications of fuel supply system components on the volume of wall flow and fuel behavior in these systems were also made estublished.
Nagaishi, H., Miwa, H., Kawamura, Y., and Saitoh, M., "An Analysis of Wall Flow and Behavior of Fuel in Induction Systems of Gasoline Engines," SAE Technical Paper 890837, 1989,
Hatsuo Nagaishi, Hiromichi Miwa, Yoshihisa Kawamura, Masaaki Saitoh
Nissan Motor Co., Ltd.
SAE International Congress and Exposition
SAE Transactions Journal of Engines-V98-3
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