Patent ID: 7706960
Filing Date: 2010-04-27
Classification: F02P

Abstract:
1. A capacitor-discharge ignition system for an internal combustion engine having a power generation coil attached to the engine to generate an alternating current output, comprising: a capacitor connected to the power generation coil to be charged by the output of the power generation coil; an ignition coil having a primary winding connected to the capacitor through a current supply path and a secondary winding connected to a spark plug; a switching element connected to the current supply path; a microprocessor which turns on the switching element at a predetermined crank angular position to cause the capacitor to discharge the stored charge to the primary winding so as to produce ignition in the spark plug to ignite air-fuel mixture in a combustion chamber of the engine; an engine stop switch installed at a location where an operator can manually manipulate the switch, and connected to the microprocessor, the switch inputting an engine-stop command signal to the microprocessor when being actuated by the operator, and the microprocessor turns off the switching element to discontinue the ignition to stop the engine when the signal is inputted.