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1. WO2011002829 - IGNITION COIL

Publication Number WO/2011/002829
Publication Date 06.01.2011
International Application No. PCT/US2010/040513
International Filing Date 30.06.2010
IPC
H01F 29/02 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
29Variable transformers or inductances not covered by group H01F21/86
02with tappings on coil or winding; with provision for rearrangement or interconnection of windings
CPC
H01F 3/06
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
3Cores, Yokes, or armatures
06made from wires
H01F 3/14
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
3Cores, Yokes, or armatures
10Composite arrangements of magnetic circuits
14Constrictions; Gaps, e.g. air-gaps
H01F 38/12
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
38Adaptations of transformers or inductances for specific applications or functions
12Ignition, e.g. for IC engines
Applicants
  • DELPHI TECHNOLOGIES, INC. [US]/[US] (AllExceptUS)
  • SKINNER, Albert, Anthony [US]/[US] (UsOnly)
  • LEVERS, Harry, Oliver, Jr. [US]/[US] (UsOnly)
  • PAUL, Mark, Albert [US]/[US] (UsOnly)
  • HAMER, Colin [GB]/[US] (UsOnly)
  • HERRERA, Hector, J. [MX]/[MX] (UsOnly)
Inventors
  • SKINNER, Albert, Anthony
  • LEVERS, Harry, Oliver, Jr.
  • PAUL, Mark, Albert
  • HAMER, Colin
  • HERRERA, Hector, J.
Agents
  • CHAN, James, M.
Priority Data
12/825,68029.06.2010US
61/222,58102.07.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IGNITION COIL
(FR) BOBINE D'ALLUMAGE
Abstract
(EN)
An ignition apparatus includes a core, primary and secondary windings and a loop-shaped magnetic return path structure. The structure includes layers of wound strip steel or wound ferritic wire stacked in an outward fashion. The core is placed in an interior of the loop forming at least one air gap between a core end surfaces and the structure. A combined core and magnetic return path structure includes a continuous loop formed by winding ferritic wire either on a spool or on a mandrel and is then bonded. The bonded winding is cut to form two C-shaped portions. Each C-shaped portion has a central yoke that extends into a pair of parallel legs. The C-shaped portions are re-assembled over primary and second windings so that the legs form a pair of parallel branches. One branch acts as the core and the other branch acts as the magnetic return path.
(FR)
L'invention porte sur un appareil d'allumage qui comprend un noyau, des enroulements primaire et secondaire et une structure de trajet de retour magnétique en forme de boucle. La structure comprend des couches d'acier en bande enroulé ou de fil ferritique enroulé, empilées vers l'extérieur. Le noyau est placé dans un intérieur de la boucle formant au moins un entrefer entre les surfaces d'extrémité de noyau et la structure. Un noyau combiné avec une structure de trajet de retour magnétique comprend une boucle continue formée par enroulement du fil ferritique soit sur une bobine, soit sur un manchon, puis lié. L'enroulement lié est coupé pour former deux parties en forme de C. Chaque partie en forme de C a une culasse centrale qui s'étend en une paire de pattes parallèles. Les parties en forme de C sont réassemblées sur des enroulements primaire et secondaire de telle sorte que les pattes forment une paire de ramifications parallèles. Une ramification sert de noyau et l'autre ramification sert de trajet de retour magnétique.
Also published as
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