Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Patent
1979-05-31
1981-03-24
Chatmon, Jr., Saxfield
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Silicon controlled rectifier ignition
315172, 315174, 315176, 123606, 123637, 315209T, H05B 3702, H05B 3904, H05B 4136
Patent
active
042582962
ABSTRACT:
An inductive-capacitive charge-discharge ignition system includes an ignition transformer primary winding and a capacitor to be charged by a unipolar alternating current source. An electronic switch connects the primary winding and capacitor in parallel during the discharge mode of the system so that the discharge current from the capacitor aids the discharge current in the primary winding. Rectifiers may be used between the outputs of the source and the primary winding and capacitor. Another version of this system employs DC power to charge the primary winding, and the unipolar source to charge the capacitor, with a rectifier between the source and capacitor. Another capacitor may be used in the secondary winding of the ignition transformer. The system may be controlled by a variety of timers. A high velocity igniter arc having luminous particles surrounding a more concentrated filament of such luminous particles is developed by the system extending across the entire base of an igniter.
REFERENCES:
patent: 3906919 (1975-09-01), Asik et al.
patent: 3972315 (1976-08-01), Munden et al.
patent: 4033316 (1977-07-01), Birchenough
patent: 4106462 (1978-08-01), Hildebrandt et al.
patent: 4136301 (1979-01-01), Shimojo et al.
patent: 4167927 (1979-09-01), Mikami et al.
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