Ignition apparatus for internal combustion engines
An ignition apparatus for internal combustion engines is described using a DC power supply of a battery to be charged by the output of a generator which is driven by an internal combustion engine to produce an AC output. It comprises: a boosting transformer having a primary coil connected to the battery and a secondary coil, for boosting an output voltage of the battery; semiconductor switching means connected in series with the primary coil of the boosting transformer, for intermitting a current flowing through the primary coil from the battery; an intermittance control circuit connected between the control electrode of the semiconductor switching means and the generator, for controlling the semiconductor switching means to make switching operation many times per revolution in synchronism with the output of the generator; a capacitor connected to the secondary coil of the boosting transformer and charged by a voltage induced in the secondary coil; ignition switching means connected to the capacitor and made conductive at ignition time; and an ignition coil having a primary coil and a secondary coil, the primary coil being connected in series with the ignition switching means and the capacitor to constitute a closed circuit and the secondary coil being provided to induce a high voltage for ignition when the ignition switching means is turned on to allow the capacitor to discharge through the secondary coil.
- Assignee:
- Nippondenso Co., Ltd., Kariya
- Patent Number(s):
- US 4699115
- OSTI ID:
- 5853425
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330603* -- Vehicle Design Factors-- Engine System
ALTERNATING CURRENT
CAPACITORS
CURRENTS
DESIGN
DIRECT CURRENT
ELECTRIC BATTERIES
ELECTRIC COILS
ELECTRIC CURRENTS
ELECTRIC GENERATORS
ELECTRICAL EQUIPMENT
ELECTROCHEMICAL CELLS
ENGINES
EQUIPMENT
HEAT ENGINES
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
OPERATION
SEMICONDUCTOR DEVICES
SEMICONDUCTOR SWITCHES
SWITCHES
TRANSFORMERS