Electricity: electrical systems and devices – Igniting systems – For electric spark ignition
Patent
1998-07-20
2000-04-18
Fleming, Fritz
Electricity: electrical systems and devices
Igniting systems
For electric spark ignition
361257, F23Q 300
Patent
active
060522704
ABSTRACT:
An ignition system has a first capacitor connected by a switch to the primary windings of a transformer. The secondary windings of the transformer are connected via a rectifier circuit to a second capacitor. An igniter is connected to the second capacitor by a cable that also has its own capacitance. In use, the combined charge on the second capacitor and the cable is gradually increased each time that the switch is closed and charge on the first capacitor is transferred to the transformer. The charge on the second capacitor and cable keeps increasing until it is sufficient to fire the igniter.
REFERENCES:
patent: 3894273 (1975-07-01), Newport, Jr. et al.
patent: 4054936 (1977-10-01), Ansai et al.
patent: 4261025 (1981-04-01), Chafer et al.
patent: 5347422 (1994-09-01), Smith et al.
patent: 5471362 (1995-11-01), Gowan
patent: 5621278 (1997-04-01), Chambers
Fleming Fritz
Smiths Industries Public Limited Company
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