Analysis of Unrepeatability of an SI Engine Based on Measurements of Indicated Pressure

Paweł Kordos; Aleksander Nieoczym

doi:10.4028/www.scientific.net/AMM.817.3

Paper Titles

Preface

Analysis of Unrepeatability of an SI Engine Based on Measurements of Indicated Pressure
p.3

Dry Friction Effect on the Work of Viscous Torsion Damper
p.13

Effect of Fuel Pilot Dose Parameters on Efficiency of Dual-Fuel Compression Ignition Engines Fuelled with Biogas
p.19

Fuel System Contamination Affecting Injection Equipment of Diesel Engines
p.27

Possibility to Use Cameline (Camelina sativa) as an Alternative Raw Material for Production of Biofuels
p.34

Simulation Investigations of Influence of Tooth Depth Coefficient on Dynamic Phenomena in Toothed Gear
p.41

Verification of a 2–Phase, Zero-Dimensional Model of a Multifuel Compression-Ignition Engine in Single Fuel Operation
p.47

Diagnostic Model of the Marine Propulsion System
p.57

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 817Analysis of Unrepeatability of an SI Engine Based...

Analysis of Unrepeatability of an SI Engine Based on Measurements of Indicated Pressure

Abstract:

The article presents the results of an empirical study of unrepeatability of the spark-ignition engine BMW N43 B20 AY, which uses a spray-guided gasoline direct injection system to create the fuel mixture. The values of the so-called unrepeatability index of maximum indicated pressure were analyzed for two different engine operating conditions: under maximum load (absolute throttle at 91%) and under partial load (absolute throttle at 33%). The values of the index were calculated on the basis of values of indicated pressure recorded over 100-cycles at five predefined rotational speeds of the engine crankshaft. It was found that the unrepeatability of maximum indicated pressure during operation of the test engine was lower under partial load than under maximum load.

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Periodical:

Applied Mechanics and Materials (Volume 817)

Pages:

3-12

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.817.3

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Online since:

January 2016

Authors:

Paweł Kordos, Aleksander Nieoczym*

Keywords:

Combustion Engine, Indicated Pressure, Working Cycles Unrepeatability

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