Patent · US Expired

Ignition coil

US7170380B2 · kind B2 · utility

11Cited by

3References

2Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Bernd Fischer · Bräunlingen, DE
Markus Weimert · Immenstadt im Allgäu, DE
Konstantin Lindenthal · Blaichach, DE
Tim Skowronek · Immenstadt im Allgäu, DE

Key dates

Filing date	Feb 9, 2005
Grant date	Jan 30, 2007
Priority date	—
Expiry date	Feb 9, 2025

Classification

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

Abstract

An ignition coil for an internal combustion engine, including a magnetically active core, a first coil shell which is used as a support for a first coil winding made of an electrically conductive wire, and a second coil shell which is positioned so as to be concentric to the first coil shell and is used as a support for a second coil winding made of an electrically conductive wire. Situated between the first coil winding and the second coil winding is a shielding layer, which is made of an electrically conductive material and provided with a grounding contact.

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