Effect of Blowby on the Leakage of the Three-Piece Oil Control Ring and Subsequent Oil Transport in Upper Ring-Pack Regions in Internal Combustion Engines
نویسندگان
چکیده
The lubricating oil consumption (LOC) in internal combustion engines contributes to emission and deteriorates the performance of aftertreatment. In this work, an optical engine with a 2D Laser-induced fluorescence (2D-LIF) system was used study operating conditions critical real driving emissions. Additionally, numerical models were analyze ring dynamics, flow gas flow. It found that intake pressure results zero blowby is separation line between two drastically different patterns pack. With lower than line, accumulation three-piece control groove (TPOCR) begins increase, followed by drastic increase third land, second finally visible leaking through top gap, given enough time. time required for leak rings investigated using both measurements modeling. effects drain holes rail gaps, as well their relative rotation on leakage from TPOCR groove, analyzed. These findings contribute improving pack designs calibration spark ignition (SI), gas, hydrogen equipped minimize negative impacts LOC.
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ژورنال
عنوان ژورنال: Lubricants
سال: 2022
ISSN: ['2075-4442']
DOI: https://doi.org/10.3390/lubricants10100250