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Progress in Plasma Processing of Materials, 2001

ISBN:
1-56700-165-3 (Print)

THE HIGH PRESSURE GLIDING DISCHARGE AS A NEW TYPE OF IGNITION OF FUEL MIXTURES IN SPARK IGNITION ENGINES

Jan Janca
Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, CZ-611 37 Brno, Czech Republic

C. Tesar
Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 611 37 Brno, Czech Republic

F. Hosek
Military Academy, Kounicova 65, 61200 Bmo, Czech Rep.

B. Dolejsi
Military Academy, Kounicova 65, 61200 Bmo, Czech Rep.

Abstract

A new way of ignition of very poor fuel mixtures using gliding discharge has been developed. The discharge is excited between at least two diverging electrodes across the streaming gas flow at frequencies (0.05−25) kHz and amplitude voltages (1−3)104 V. Spectral diagnostics of discharge plasma was performed and electron, vibrational and rotational temperatures were determined under various experimental conditions (up to pressure 1.2 MPa). The new ignition system was tested on the one-cylinder engine. The power output is remarkable increased and the fuel consumption is simultaneously reduced.