Investigating the Effects of Variable Valve Timing on Spark Ignition Engine Performance

Bapiri, Sepehr; Sorusbay, Cem

doi:10.12913/22998624/103917

Artykuł - szczegóły

Tytuł artykułu

Investigating the Effects of Variable Valve Timing on Spark Ignition Engine Performance

Autorzy

Bapiri Sepehr , Sorusbay Cem

Treść / Zawartość

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DOI

10.12913/22998624/103917

Warianty tytułu

Języki publikacji

Abstrakty

In this study, a prototype four-stroke spark ignition engine with four cylinders (two valves per cylinder), with and without turbocharger, as well as variable valve timing system to adjustment of variable valve duration has been investigated. This study covers the effects of intake valve opening (IVO), Intake valve closing (IVC), exhaust valve opening (EVO) and exhaust valve closing (EVC) angles on engine performances and fuel economy. The calculations of engine performance were carried out using the 1-Dimensional simulation with AVL BOOST software. The effects of different valve timing strategies and a combination of them from simulations were analyzed and compared with the reference fixed valve timing cases. It was shown that substantial improvements in fuel consumption and performance can be achieved. The improvements of Indicated Specific Fuel Consumption (ISFC) are remarkable in turbocharged models. Furthermore, we can see the noticeable improvements in torque and power in the naturally aspirated engine.

Słowa kluczowe

spark ignition engine variable valve timing turbocharger AVL BOOST engine performance fuel consumption

silnik o zapłonie iskrowym zmienny rozrząd zaworów turbosprężarka AVL Boost wydajność silnika zużycie paliwa

Wydawca

Lublin University of Technology
Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin

Czasopismo

Advances in Science and Technology. Research Journal

Rocznik

2019

Tom

Vol. 13, no 2

Strony

100--111

Opis fizyczny

Bibliogr. 19 poz., fig., tab.

Twórcy

autor

Bapiri Sepehr

Automotive Engineering, Faculty of Mechanical Engineering, Istanbul Technical University, Istanbul, Turkey
bapiris@itu.edu.tr

autor

Sorusbay Cem

Mechanical Engineering, Faculty of Mechanical Engineering, Istanbul Technical University, Istanbul, Turkey

Bibliografia

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11. http://www.avl.com/web/ast/boost
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14. Cao L., Zhao H., Jiang X. and Kalian N. Understanding the Influence of Valve Timings on Controlled Auto-Ignition Combustion in a Four-Stroke Port Fuel Injection Engine. Journal of Automobile Engineering, 219(6), 2005, 807–823.
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16. Ma T.H. Recent advances in variable valve timing. In Automotive Engine Alternatives. Springer US, 1987, pp. 235–252.
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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).

Typ dokumentu

Bibliografia

Identyfikator YADDA

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