EP 0034955 B1 19841024 - IGNITION COIL FOR INTERNAL-COMBUSTION ENGINES
Title (en)
IGNITION COIL FOR INTERNAL-COMBUSTION ENGINES
Publication
Application
Priority
- FR 8003653 A 19800220
- FR 8009742 A 19800430
Abstract (en)
[origin: EP0034955A1] 1. Ignition coil for internal combustion engines, comprising a closed magnetic circuit (1) formed by a plurality of sheet metal elements or laminations which are assembled to form a rectangular frame comprising branches of rectangular cross-section, a permanent magnet (2) situated between two half-branches (3a and 3b) forming a branch (3), a primary winding (4) and a secondary winding (5) surrounding a branch (6) opposite to the branch (3), characterized in that the magnetic circuit (1) comprises at least one magnetic junction (7) situated at one of the extremities of the branch (6) along a plane forming an acute angle (alpha) with the plane of the surfaces (2a and 2b) of the permanent magnet (2) adjacent to the circuit (1).
IPC 1-7
IPC 8 full level
H01F 3/10 (2006.01); H01F 29/14 (2006.01); H01F 38/12 (2006.01)
CPC (source: EP)
H01F 3/10 (2013.01); H01F 29/146 (2013.01); H01F 38/12 (2013.01)
Citation (examination)
- DE 1464202 A1 19690522 - LICENTIA GMBH
- FR 1048081 A 19531218 - PHILIPS NV
- FR 1041524 A 19531023 - PHILIPS NV
- DE 2226289 A1 19730104 - TDK ELECTRONICS CO LTD
- FR 66586 E 19570416 - APP MARCHAL SOC D EXPL CONST D
Designated contracting state (EPC)
DE GB IT SE
DOCDB simple family (publication)
EP 0034955 A1 19810902; EP 0034955 B1 19841024; DE 3166748 D1 19841129; ES 499553 A0 19811201; ES 8200744 A1 19811201
DOCDB simple family (application)
EP 81400073 A 19810121; DE 3166748 T 19810121; ES 499553 A 19810218