want to read about :Starting and ignition - INTRODUCTION
Electric
5. The electric starter is usually a direct current (D.C.) electric motor coupled to the engine through a reduction gear and ratchet mechanism, or clutch, which automatically disengages after the engine has reached a self-sustaining speed (fig. 11-2).
6. The electrical supply may be of a high or low voltage and is passed through a system of relays and resistances to allow the full voltage to be progres- sively built up as the starter gains speed. It also provides the power for the operation of the ignition system. The electrical supply is automatically cancelled when the starter load is reduced after the engine has satisfactorily started or when the time cycle is completed. A typical electrical starting system is shown in fig. 11-3.
Electric
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| Fig. 11-2 An electric starter |
5. The electric starter is usually a direct current (D.C.) electric motor coupled to the engine through a reduction gear and ratchet mechanism, or clutch, which automatically disengages after the engine has reached a self-sustaining speed (fig. 11-2).
6. The electrical supply may be of a high or low voltage and is passed through a system of relays and resistances to allow the full voltage to be progres- sively built up as the starter gains speed. It also provides the power for the operation of the ignition system. The electrical supply is automatically cancelled when the starter load is reduced after the engine has satisfactorily started or when the time cycle is completed. A typical electrical starting system is shown in fig. 11-3.
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