Gasoline Systems Ignition coil Gasoline engines require an ignition spark to start Ignition coil the combustion of the air-fuel mixture in the combustion chamber. This spark is generated at the spark plug. The ignition coil transforms energy from the vehicle electric system into the required high voltage and provides it to the spark plug. Task The air-fuel mixture in the combustion chamber is ignited by means of an ignition spark. The spark plug requires an ignition voltage of up to 30,000 Volts to generate the spark. The ignition coil generates this voltage from the 12 V vehicle electrical system and delivers it to the spark plug at the time of ignition. Customer benefits ▶ Compact, lightweight and robust Function ▶ Scalable spark energy The ignition coil works like a transformer. Using two – High eﬃciency concentric coils it transforms the electric energy from – Can be used for all combustion processes the vehicle battery into high voltage, stores it tempo- ▶ Customization rarily and then delivers it to the spark plug as a high- – Installation point, primary connector, jacket, voltage current surge. spark energy and characteristic ▶ Flexible jacket makes it also suitable for diﬃcult installation conditions Technical features Power Mini ignition coil Ignition energy 50–90 mJ Secondary voltage (35 pF/10 MΩ) > 32 kV Option Integrated electronics Application with Gasoline, CNG, ﬂex fuel Robert Bosch GmbH Gasoline Systems Postfach 30 02 40 70442 Stuttgart Deutschland www.bosch-automotivetechnology.com Printed in Germany 292000P15S-C/CCA-201309-En © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.