Abstract: The invention describes a method for generating corona discharges in two combustion chambers of a combustion engine, into each of which a high-frequency igniter (HFZ3, HFZ4) protrudes which is part of a high-frequency resonant circuit, by providing only one single transformer (TR4), which has a primary side and a secondary side, at least one primary winding on the primary side and a secondary winding on the secondary side, connecting the secondary winding of the transformer (TR3, TR4) to both resonant circuits and feeding into both resonant circuits the high frequency alternate current flowing through the secondary winding.

Abstract: There is obtained an ignition apparatus, for an internal combustion engine, that can make a predetermined output current flow in a stable manner so that the combustion state of the internal combustion engine can always be maintained in a good condition, even in the case where the voltage of the power source connected with the energy storing coil fluctuates.

Abstract: An ignition system for a vehicle includes a distributor having with a Hall Effect stator assembly and ignition module formed preferably as a thick film integrated (TFI) module, which receives a spark output (SPOUT) signal from an electronic control assembly (ECA). The ignition module includes a microprocessor for generating a control signal to an ignition coil and switching ON and OFF the primary current therein. A temperature sensing circuit is operative with the microprocessor for reducing the duty cycle or overall current or power as applied to the control signal from the TFI ignition module to the ignition coil and reducing the heat generated by the TFI ignition module when a temperature threshold for the TFI ignition module has been exceeded.

Abstract: The ignition device for an internal combustion engine includes two spark plugs provided for each cylinder, ignition coils arranged independently to each of the spark plugs, an ignition power source circuit for supplying electrical energy to first coils which constitute the ignition coils, and an ignition transistor circuit for switching on and off the electrical supply from the ignition power source circuit to the first coils. In the ignition device, the first coils corresponding to spark plugs that are provided to the same cylinder are connected in parallel with the ignition transistor circuit that is arranged to each cylinder. The ignition power source circuit is a circuit including an energy storage condenser for storing electrical energy supplied to the first coil. The electrical supply circuit is a circuit including an MOS-type field effect transistor.

Abstract: A system 10 for increasing electrical spark current to the spark plugs of an electronic ignition system for internal combustion engines includes a capacitor 12 parallel with a switch 14; a primary winding 16; a secondary winding 18 in series with a spark plug 20, the capacitor 12 and switch 14 being in series with the primary winding 16; and a battery 22 having a positive terminal connected to the primary winding 16, and a negative terminal connected to the capacitor 12, switch 14 and spark plug 20. The components cooperating to direct positive and negative electrical currents through the primary winding 16 whereby a peak to peak primary winding current occurs that induces a corresponding secondary winding current through said secondary winding 18.

Abstract: An engine cylinder firing event is intentionally defeated by clipping the flyback voltage of the ignition system primary coil winding under the control of a misfire generator that develops a misfire logic signal from ignition dwell events and user inputs and also develops a signal indicative of which cylinder firing event was defeated.

Abstract: In a capacitive ignition system for an internal combustion engine, the discharging and charging of an ignition capacitor is controlled by a control unit which actuates a first circuit-breaking element in a discharging circuit and a second circuit-breaking element in a charging circuit. For the purpose of prolonging the ignition sparks so as to reliably ignite, especially in a lean fuel/air mixture, the control unit, at a time following the ordinary ignition time, actuates the second circuit-breaking element in such a way that it is kept conductive simultaneously with the first circuit-breaking element. Current is then supplied from an electrical energy source and via a primary winding. Thereafter, the control unit actuates either the first or second circuit-breaking elements in such a way that the current supply via the primary winding is interrupted, by which means a renewed ignition voltage is obtained which prolongs the ordinary ignition spark.

Abstract: Improved magnetic pulse timer components provide increased timer voltages with steeper bipolar waveforms. Such improvements are residual in terms of a permanently magnetized timer rotor (30, 40, 60, 70, 80). Rotors (30, 40, 60) have regularly spaced protrusions at the rotor's outer periphery and are permanently magnetized. Rotors (70, 80) have regularly spaced slots in their outer peripheries and may also be permanently magnetized. Such slotted rotors provide the capability of high level and steep bipolar voltage waveforms. Additional magnetic flux switching capability in the timer may be provided by utilizing a permanently magnetized component mounting base plate (90, 100, 110).

Abstract: An ignition system for a fuel burning engine has a transformer with a primary winding (L1) and a secondary winding (L2). A magnetic pulse time (20) provides a bipolar signal to the input circuits of a pair of transistors (Qa-Qb, Qn-Qp, Q2-Q3, Q4-Q5, Q6a-Q7) of opposite conductivities. The output circuits of such transistor pair are serially connected and also connected in series with ignition transformer primary winding. The transistor pair is simultaneously activated to provide current flow in the primary winding and simultaneously deactivated to discontinue such current flow to create an induced voltage in the primary winding that is transferred to the secondary winding to fire igniters of the engine. Transistor pairs of the multijunction, unijunction and field effect Darlington or non-Darlington types may be utilized.

Abstract: A magneto ignition system having inherent means for providing operating biases for components thereof at temperature extremes is disclosed. The disclosed ignition system includes an ignition coil (10) having primary and secondary coil (12, 14) a solid state or semiconductor switch (24) being connected across the primary coil (12) for switching the current therein, and drive and trigger coils (20, 34). The semiconductor switch (24) is driven toward a nonconductive state, to cause an ignition impulse in the secondary coil, by semiconductor latching device (32) which shunts the signal from the drive coil (20) to ground (38). The semiconductor latching device (32) is activated by a trigger coil (34), having a separate magnetic flux path.In order to provide reliable switching at extremes of ambient temperature, means (22) responsive to the common magnetic field of the primary coil, the secondary coil, and the drive coil are provided to effectively provide operating bias to the latching device (32).

Abstract: This invention relates to a contactless ignition circuit for internal combustion engines characterized in that a primary short-circuiting current flowing through the primary winding of an ignition coil is made to flow through a power transistor controlled to be conducted and interrupted by a photoswitching means, the formation is small and simple, the contact is not worn and the life is long.