Global patent index - EP 1094575 A1

EP 1094575 A1 2001-04-25 - Spark plug

Title (en)

Spark plug

Title (de)

Zündkerze

Title (fr)

Bougie d'allumage

Publication

EP 1094575 A1 (DE)

Application

EP 00122635 A

Priority

DE 19950922 A

Abstract (en)

The sparking plug is such that at the ignition side end region, on the circumference of the center electrode (4), a circular tip (10) is built on or formed. This surrounds the center ring shaped electrode (4). The circular tip (10) has an inclination angle of 15 to 90 degrees.

Abstract (de)

Zündkerze mit einem elektrisch isolierenden Keramikisolator (1), einem metallischen Zündkörper (2), einer Masseelektrode (3) und einer Mittelelektrode (4), die zentrisch in einer Bohrung (5) des Keramikisolators (1) angeordnet ist, wobei um den zündseitigen Endbereich auf dem Umfang der Mittelelektrode (4) eine umlaufende Spitze (10) auf- oder ausgebildet ist, die die Mittelelektrode (4) ringförmig umfaßt. <IMAGE>

IPC 1-7 (main, further and additional classification)

H01T 13/14; H01T 13/39

IPC 8 full level (invention and additional information)

H01T 13/20 (2006.01); H01T 13/14 (2006.01); H01T 13/39 (2006.01)

CPC (invention and additional information)

H01T 13/14 (2013.01); H01T 13/39 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1094575 A1 20010425; EP 1094575 B1 20030115; AT 231297 T 20030215; DE 19950922 A1 20010426; ES 2187419 T3 20030616; JP 2001155838 A 20010608; JP 4837819 B2 20111214; US 6583538 B1 20030624

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