Ignition coil with non-filtering/non-segregating secondary windi

Details Ignition coil with non-filtering/non-segregating secondary windi Ignition coil with non-filtering/non-segregating secondary windi

1995-06-21

1999-01-19

Gellner, Michael L.

Inductor devices

Coil or coil turn supports or spacers

Coil turns cemented to support or embedded in plastic

336206, 336209, 336213, 336219, H01F 2730, H01F 2724

Patent

active

058617914

ABSTRACT:
An ignition coil for an internal combustion engine and a method of making the same in which layers of the secondary winding are separated by a non-filtering
on-segregating material embedded in an electrically insulated ignition coil housing. The preferred non-filtering secondary winding separator is a solid filament, non-absorbing
on-adsorbing mesh, such as a nylon mesh. Using the non-filtering
on-segregating secondary winding separator prevents filler damming when an ignition coil housing is manufactured using a vacuum encapsulation and curing process in which an encapsulation compound (e.g. a thermal setting epoxy) has solid additives (e.g. sand fillers). Non-absorbing
on-adsorbing separators are also advantageous because the separators do not alter the chemistry of the encapsulation compound.

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patent: 5396210 (1995-03-01), Purohit et al.
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