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High-speed Imaging Analysis of Misfires in a Spray-guided Direct Injection Engine by Brian Peterson; David L. Reuss; Volker Sick is a Engineering article available to read on EtoBox.

What is High-speed Imaging Analysis of Misfires in a Spray-guided Direct Injection Engine about?

This study is an experimental investigation of rare misfire and partial burn cycles in a spray-guided sparkignited direct-injection optical engine. Spark discharge energy, discharge duration, flame imaging, velocity and equivalence ratio were measured every crank angle degree. Imaging was performed using high-speed 2-D particle image velocimetry (PIV) and planar laser inducted fluorescence (PLIF). The engine was operated near its optimum but produced rare and random partial burn and misfire cycles. Spark energy and spark duration for the partial burn and misfire cycles fell within the range of those for the well-burned cycles, with a slight bias toward low-energy, short-duration discharges, indicating no abnormal spark discharge events. PIV and PLIF measurements extracted from a 4 mm  4 mm region adjacent to and downstream of the spark plug at spark timing revealed that the partial burn and misfire cycles occur under lean mixtures and low velocities, but still within the range of values for the well-burned cycles. PIV and PLIF images of partial burn and misfire cycles were compared to well-burned cycles, which had similar velocities and equivalence ratios near the spark plug at th

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Author

Brian Peterson; David L. Reuss; Volker Sick

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd; Elsevier BV (ISSN 1540-7489)

Published

2011

Language

EN

Field

Engineering (Physical Sciences)