Inductive ignition system for internal combustion engines

Details Inductive ignition system for internal combustion engines Inductive ignition system for internal combustion engines

F - Mech Eng,Light,Heat,Weapons

02

P

F02P 1/00 (2006.01)

Patent

CA 2504358

The ignition system for internal combustion engines comprises a rotor and an armature provided with an ignition coil in which voltage signals, each having pulses of opposite polarities are cyclically induced during each revolution of the rotor; a control unit for the ignition current comprises a current-control switch which can be triggered during a positive pulse of the voltage signals, to cut off the current in the primary winding and generate a high voltage on the secondary winding of the ignition coil. A second control switch has the control electrode connected both to a current-control resistor in series with the current-control switch, and to the outlet of a voltage comparator connected to a timing circuit enabling the sparking within a pre-established time interval, during a positive pulse of each voltage signal, preventing the sparking when the engine is running below a minimum rotational speed, during the forward rotation and at the reverse rotation of the same engine.

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