Ignition coil for an internal combustion engine

Details Ignition coil for an internal combustion engine Ignition coil for an internal combustion engine

1990-11-05

1992-07-07

Kozma, Thomas J.

Inductor devices

With permanent magnet

336178, 336212, H01F 1706, H01F 2724

Patent

active

051286459

ABSTRACT:
The invention is directed to an ignition coil for use in an internal combustion engine. The ignition coil includes a core having at least two parts between which a gap is formed. A primary winding and a secondary winding are mounted on the core in such a manner that the gap of the core is substantially enclosed in the primary winding at least. A permanent magnet, whose cross section is larger in area than the cross section of the core, is disposed in the gap of the core to form a substantially closed magnetic circuit with the core. Preferably, there are disposed a primary bobbin for mounting thereon the primary winding and receiving therein the permanent magnet, and a secondary bobbin for mounting thereon the secondary winding and receiving therein the primary bobbin with the primary winding mounted thereon.

REFERENCES:
patent: 1545429 (1925-07-01), Hunt
patent: 2381763 (1945-08-01), McCreary
patent: 2869050 (1959-01-01), Vanurk et al.
patent: 3209295 (1965-09-01), Baermann
patent: 3968465 (1976-07-01), Fukui et al.
patent: 4546753 (1985-10-01), Piernet
patent: 4627407 (1986-12-01), Betz
patent: 4866409 (1989-09-01), Umpzaki
patent: 4990881 (1991-02-01), Ooyabu

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