EP 0041475 A1 19811209 - Method of manufacturing an ignition device for an internal-combustion engine, and ignition device obtained thereby.
Title (en)
Method of manufacturing an ignition device for an internal-combustion engine, and ignition device obtained thereby.
Title (de)
Verfahren zur Herstellung einer Zündvorrichtung für Verbrennungsmotor und nach diesem Verfahren hergestellte Zündvorrichtung.
Title (fr)
Procédé de fabrication d'un dispositif d'allumage pour moteur à combustion interne, et dispositif d'allumage obtenu par ce procédé.
Publication
Application
Priority
CH 421280 A 19800530
Abstract (en)
[origin: US4490122A] The present invention relates to a process for manufacturing an ignition device or connector for an internal combustion engine and the ignition device or convection obtained by such process. The ignition convector, in use, creates a plasma for igniting lean mixtures. Said device an insulator 2 containing a central electrode 3 and a metal shell 4, in which the insulator is fixed. The ground electrode of conventional spark-plugs is replaced by a circular capsule 17 welded to the shell base, after having been subjected to a hard chromizing treatment. The shell comprises an annular recess 14 provided in the thickness of its wall, and is welded to the ceramic insulator 2 by brazing.
Abstract (fr)
Dispositif, appelé convecteur d'allumage, comportant, comme les bougies conventionnelles, un corps isolant (2) contenant une électrode centrale (3) et un culot métallique (4) dans lequel est fixé le corps isolant. L'électrode de masse des bougies conventionnelles est remplacée par une capsule circulaire (17) soudée à la base du culot, après avoir subi un traitement de chromisation dure. Le culot comporte un évidementannulaire (14) ménagé dans l'épaisseur de sa paroi, et est soudé au corps isolant en céramique (2) par brasage.
IPC 1-7
IPC 8 full level
H01T 13/32 (2006.01); H01T 13/54 (2006.01); H01T 21/02 (2006.01)
CPC (source: EP US)
H01T 13/54 (2013.01 - EP US)
Citation (search report)
- GB 579599 A 19460808 - GEN MOTORS CORP
- FR 41884 E 19330501 - FR DES BOUGIES POGNON SOC
- FR 814611 A 19370626 - SIEMENS AG
- US 2478656 A 19490809 - DUTTERER REX J L
- FR 2437713 A1 19800425 - SMITHS INDUSTRIES LTD [GB]
- US 2205196 A 19400618 - HARPER JR WILLIAM
- FR 1500692 A 19671103 - BOSCH GMBH ROBERT
- CH 549884 A 19740531 - LECTRA HOLDING SA
- US 4028576 A 19770607 - WOFSEY DAVID
- FR 1190351 A 19591012 - ITALLANA MAGNETI MARELLI FAB
- US 3984717 A 19761005 - ROMANOWSKI EDWARD A, et al
- CH 392992 A 19650531 - KUESTER LEO [DE]
- GB 674002 A 19520618 - STACKPOLE CARBON CO
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
US 4490122 A 19841225; AU 7110881 A 19811203; BR 8103408 A 19820224; CH 624509 A5 19810731; EP 0041475 A1 19811209; JP S5798993 A 19820619
DOCDB simple family (application)
US 26651381 A 19810522; AU 7110881 A 19810528; BR 8103408 A 19810529; CH 421280 A 19800530; EP 81810184 A 19810515; JP 8242881 A 19810529