Patent · US Active

Ignition coil

US11195654B2 · kind B2 · utility

0Cited by

5References

5Claims

0Family size

Assignee

BorgWarner Ludwigsburg GmbH · DE

Inventors

Sven Schumm · Walheim, DE
Manfred Adolf · Schwaikheim, DE
Timo Stifel · Stuttgart, DE
Dirk Wüstenhagen · Auma, DE
Manuel Bauer · Graz, AT
Alexander Stark · Althengstett, DE

Key dates

Filing date	Nov 15, 2019
Grant date	Dec 7, 2021
Priority date	—
Expiry date	Nov 15, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH01F27/327
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An inventive ignition coil has a transformer that includes a primary coil, a secondary coil and a core formed from stacked metal sheets. A plastic frame holds the sheets. A housing surrounds an interior in which the transformer is arranged and the interior is sealed with an electrically insulating casting compound. The housing comprises an interior wall bounding bounds a compartment in which a part of the core is arranged, the part of the core being outside the primary coil and the secondary coil.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.