✦ LIBER ✦

Development of instrument for measurement of fuel–air ratio in vicinity of spark plug: application to DI gasoline engine

✍ Scribed by Kiyomi Kawamura; Tetsunori Suzuoki; Akinori Saito; Terutoshi Tomoda; Mutsumi Kanda

Book ID: 104342593
Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 293 KB
Volume: 19
Category: Article
ISSN: 0389-4304
DOI: 10.1016/s0389-4304(98)00023-x

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✦ Synopsis

An instrument to measure time-resolved fuel-air ratio in the vicinity of a spark plug was developed. Properties of absorption and scattering at the wavelengths of visible and infrared rays were utilized to determine the fuel-air ratio in the mixture including liquid and vaporized fuel. The measurement error of the instrument was within 10% as a result of comparison between the overall and the measured fuel-air ratio at the vicinity of the spark plug under the inlet port injection, which forms a relatively homogeneous mixture. The instrument was applied to a direct injection gasoline engine and the mixture formation process was clarified.

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