Ignition wire having low resistance and high inductance

Details Ignition wire having low resistance and high inductance Ignition wire having low resistance and high inductance

2007-10-16

2007-10-16

Nguyen, Chau N. (Department: 2831)

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

C174S10500R, C174S108000, C338S214000

Reexamination Certificate

active

11295957

ABSTRACT:
An ignition wire having low resistance and high inductance includes a ferrite core, a coiled wire surrounding the core, and an insulating sheath, where the high voltage ignition wire exhibits a resistance of 130-210 Ohms/ft and an inductance of 44-104 μH. The coiled wire may have a diameter of 0.07-0.11 mm, 110-180 turns/in. and comprises a CuNi-based alloy. The coiled wire is preferably made of a CuNi-based alloy having, by weight, 80-95% Cu and 5-20% Ni. The ferrite core may include a core stranding which includes a ferrite core coating. The ferrite core coating may include, by weight, about 5.0-8.4% carbon, 31.7-37.8 oxygen, 1.5-1.7% copper, 0.6-0.8% aluminum, 0.1-0.2% sulfer, 7.0-11.6% zinc, 2.4-3.3 nickel and the balance iron and minor amounts of impurities.

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