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Analysis and Experiments on Carburetor Metering at the Transition Region to the Main System
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Abstract
A series of analyses and experiments has been carried out on the problem of poor air/fuel ratio characteristics at the transition region from the idle system to the main system. The fuel supply characteristic of the idle system, as well as that of the main system, has been treated as a function of intake air-flow rate.
It has been shown theoretically that the behavior of the fuel in the transition region results from the fuel passage construction of the conventional type of carburetor, and that a uniform air/fuel ratio can never be supplied in the transition region without a main air-bleed system. The effects of the main air-bleed system on fuel supply characteristics at the transition region have been investigated quantitatively. The mechanism of fuel supply at the transition region has been confirmed through experiments made on actual parts.
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Shinoda, K., Koide, H., and Yii, A., "Analysis and Experiments on Carburetor Metering at the Transition Region to the Main System," SAE Technical Paper 710206, 1971, https://doi.org/10.4271/710206.Also In
References
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- Linzer V. Wien TH. MTZ 27 1 1966 11 17
- Isobe I. Asano Y. “Discharge Beginning Points of Fuel and Bleed-Air of Carburetor.” The University of Chiba 1968
- Harrington D. L. Bolt J. A. “Analysis and Digital Simulation of Carburetor Metering.” Paper 700082 SAE Automotive Engineering Congress Detroit January 1970