Advanced Variable Geometry Turbocharger for Diesel Engine Applications

Arnold, Steve; Groskreutz, Mark; Shahed, S. M.; Slupski, Kevin

doi:10.4271/2002-01-0161

Cited by 29 publications

(11 citation statements)

References 9 publications

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“…VNT (Variable Nozzle Turbo) technology is an ideal solution to solve the problem of deviation between intake and exhaust in turbocharged diesel engines by adjusting the opening of nozzle ring according to demand of air at various conditions. (Wijetunge et al 2004, Arnold et al 2002, Wahlström et al 2010) At present, research on the effect of EGR and VNT on diesel engines mainly focuses on combustion process, performance and emission of engines (Zamboni 2018, Tianling et al 2006, Wenbin et al 2016, Yongzhong et al 2018. At present other studies on pressure waves in the intake and exhaust system mainly focus on the effect of different engine conditions as well as the system structure parameters of intake and exhaust systems.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Effects of EGR and VNT on the Intake and Exhaust Pressure Waves in a High-Pressure Common-Rail Diesel Engine

Liu¹,

Hou²,

Bi³

et al. 2020

JAFM

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The transient pressure waves in the intake and exhaust systems directly affect the intake and exhaust processes of diesel engines, thus further affecting the combustion process and the performance of diesel engines. The variation rules of the intake and exhaust pressure waves at different engine speeds and loads in a high-pressure common-rail diesel engine were studied. Then, the effects of EGR rate and VNT nozzle opening on the intake and exhaust pressure waves were systematically studied by bench test and one-dimensional simulation analysis. The results show that at 2000 r•min-1 full-load, when the EGR rate increases from 0 to 10%, the average intake pressure and the average exhaust pressure both decrease. The fluctuation waveforms of the intake pressure and the exhaust pressure change significantly. The fluctuation intensity of the intake pressure decreases by 58.6%, and the fluctuation intensity of the exhaust pressure increases by 77.2%. As the EGR rate increases from 10% to 30%, the average intake pressure and the average exhaust pressure both decrease. The fluctuation waveforms are basically unchanged. The increasing magnitudes of the intake and exhaust pressure fluctuation intensities are 16.6% and 20.5%, respectively. As the VNT nozzle opening increases, the average intake pressure and the average exhaust pressure both decrease. The corresponding phases of the intake pressure wave crest and trough are delayed. The fluctuation waveforms of the intake and exhaust pressure are basically unchanged, and the fluctuation intensities do not change significantly.

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Section: Introductionmentioning

confidence: 99%

A Study on the Effects of EGR and VNT on the Intake and Exhaust Pressure Waves in a High-Pressure Common-Rail Diesel Engine

Liu¹,

Hou²,

Bi³

et al. 2020

JAFM

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show abstract

“…Even though many findings were reported in this case still the problem is exist. [12], [15]- [18]. Though the advancements in system design like the variable geometry turbine, common rail injection system, and multiple injections, the problem has still persisted due to the limiting parameter say the supply of air.…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of Turbo-Matching of B60j67, B60j68 and A58n75 Turbochargers by Data-logger Method

Roy¹

2017

IJRASET

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Turbocharger is considered as Charge booster of IC Engine, especially at higher load. Negative compressor performance like Surge and Choke occurs by improper turbo-matching. Turbo-matching is a tedious task and requires extreme care. It is one time job for an engine kind and expensive. This research articles focuses on evaluation of appropriateness in turbo-matching of B60J67, B60J68 and A58N75 turbochargers for TATA 497 TCIC -BS III engine. The simulation and datalogger method used obtaining the operating conditions. The road conditions like rough, city drive, highway, slope and slope down were included for on road test (data Logger method). The appropriateness evaluated with use of compressor map.

show abstract

“…Even though many researches were done on this case still the problem is exist. [12], [15]- [18]. Though the advancements in system design like variable geometry turbine, common rail injection system, and multiple injections, the problem is still persist due to the limiting parameter say supply of air.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Turbo-Matching of Turbo-Charger B60j68 for Commercial Vehicle Engine

2017

IJAERD

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Advanced Variable Geometry Turbocharger for Diesel Engine Applications

Cited by 29 publications

References 9 publications

A Study on the Effects of EGR and VNT on the Intake and Exhaust Pressure Waves in a High-Pressure Common-Rail Diesel Engine

A Study on the Effects of EGR and VNT on the Intake and Exhaust Pressure Waves in a High-Pressure Common-Rail Diesel Engine

Experimental evaluation of Turbo-Matching of B60j67, B60j68 and A58n75 Turbochargers by Data-logger Method

Experimental Study on Turbo-Matching of Turbo-Charger B60j68 for Commercial Vehicle Engine

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