Ignition System - 1 1 AUTOMOBILE ENGINEERING MODULE 2 IGNITION SYSTEM CIJIL B JOHN Asst Professor Dept of ME JECC Introduction In S.I engines as the

Ignition System - 1 1 AUTOMOBILE ENGINEERING MODULE 2...

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AUTOMOBILE ENGINEERING MODULE 2 – IGNITION SYSTEM CIJIL B. JOHN Asst. Professor Dept. of ME, JECC 1 1
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Introduction In S.I engines, as the compression ratio is lower & the self ignition T of gasoline is higher, for igniting the mixture for the initiation of combustion, an ignition system is a must. The electrical discharge produced b/w the two electrodes of a spark plug by the ignition system starts the combustion process. Function of an ignition system is to initiate the flame propagation process. 11/11/16 2
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IGNITION SYSTEM 11/11/16 3 As air is a poor conductor of electricity, an air gap in an electric circuit acts as a high resistance. But when a high voltage is applied across the electrodes of a spark plug, it produces a spark across the gap. When such a spark is produced to ignite the homogenous A-F mixture in the combustion chamber, it’s called an S.I Engine. Depending upon how the primary energy is available, 1. Battery Ignition System 2. Magneto Ignition System.
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Requirements of an Ignition System 11/11/16 4 It should provide a good spark b/w the electrodes of the plug at the correct timing. It should function efficiently over the entire range of engine speed. It should be light, effective & reliable in service. It should be compact & easy to maintain.
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  • Fall '16
  • MR BIJU CV
  • Internal combustion engine, Ignition system, ignition, Magneto Ignition, battery ignition

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