Electricity: electrical systems and devices – Igniting systems – For electric spark ignition
Patent
1984-09-04
1985-12-10
Griffin, Donald A.
Electricity: electrical systems and devices
Igniting systems
For electric spark ignition
333 12, 174 32, 174 36, F23Q 300, H03H 701
Patent
active
045583927
ABSTRACT:
A transmission cable (30, 50, 70, 80) for an ignition system of a fuel burning engine has a body of electrical insulation (31, 51, 71, 81). The cable has embedded in its insulation either a distributed or lumped parameter capacitive element (32-35, 52-55, 72-75, 82-84) connected in parallel with either a distributed or lumped parameter resistive element (36-38, 56-58, 76, 86-88) which coact to increase the energy delivered to an igniter and hence to a fuel nodule. The parameter values of the capacitive and resistive elements are such as to produce first order poles with only real parts in the complex plane defining the ignition current. Other parameter values are usable where such values limit the peak ignition voltage level drop in the cable to less than 20,000 volts. A feature of this cable is that the capacitive element is structured to produce electric and magnetic field components that cancel each other, thereby also reducing radio noise induction.
REFERENCES:
patent: 3492622 (1970-01-01), Hayashi et al.
patent: 4413304 (1983-11-01), Gerry
patent: 4422054 (1983-12-01), Gerry
patent: 4451764 (1984-05-01), Gerry
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