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Minimization of Inverse Inlet Flow and Consequent Reduction in Specific Fuel Consumption in Gasoline Engines
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English
Abstract
In this paper possible causes of inverse inlet flow observed in one-to four-cylinder gasoline engines are discussed. One possible cause is the angle between crank throws. This was checked experimentally on a four-cylinder engine operated as a two-cylinder and was found to have little effect. Inlet manifold resonance was then postulated as the most probable cause. Accordingly, an inlet manifold resonance analysis was made for a two-cylinder engine. As a result of this analysis changes were made in the inlet manifold. These changes, plus changes in the venturi, substantially reduced the visible inverse flow as well as reducing the brake specifice fuel consumption from 265 grams/psh to 216 grams/psh at 3000 rpm. In addition, better balance of load between the two cylinders was observed.
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Citation
Zhou, L., Yao, C., and Yang, Z., "Minimization of Inverse Inlet Flow and Consequent Reduction in Specific Fuel Consumption in Gasoline Engines," SAE Technical Paper 841093, 1984, https://doi.org/10.4271/841093.Also In
References
- Xian Jiaotong University (P.R.C.) The Principles of I.C.E. Agricultural Machine Publishing House of China 1982
- Morse Philip, M. Vibration and Sound 1948
- He Zhiyong et al. Theoretical Foundations of Sound National Defense Industry Publishing House of China 1981
- Yamada S. Nogushi K. “The Calculation of Pressure Pulsations of Pipe System.” Fluid Dynamics 10 10 1974