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A Study of Exhaust and Noise Emissions Reduction on a Single Spray Direct Injection
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Abstract
Exhaust and noise emissions were successfully reduced using a Single Spray Direct Injection Diesel Engine (SSDI) on a two-liter naturally-aspirated four-cylinder engine. The compression ratio, the swirl ratio and the pumping rate were optimized to obtain good fuel economy, high power output and low exhaust emissions. Furthermore, through a modification of the fuel injection equipment, hydrocarbon (HC) emissions were reduced.
Upon a test vehicle evaluation of this engine, more than 11% fuel savings relative to Mazda two-liter Indirect Injection Diesel Engines (IDI) were obtained.
As for engine noise, structural modifications of the engine were carried out to obtain noise emission levels equivalent to IDI.
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Citation
Yamauchi, H., Sakurai, S., and Takamori, Y., "A Study of Exhaust and Noise Emissions Reduction on a Single Spray Direct Injection," SAE Technical Paper 890467, 1989, https://doi.org/10.4271/890467.Also In
References
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