EP 3736493 A1 20201111 - GLOW PLUG
Title (en)
GLOW PLUG
Title (de)
GLÜHKERZE
Title (fr)
BOUGIE DE PRÉCHAUFFAGE
Publication
Application
Priority
- JP 2017223485 A 20171121
- JP 2018035539 W 20180926
Abstract (en)
[Abstract] A rapid temperature increase is achieved while power consumption is suppressed. A glow plug (1) according to the present invention includes a ceramic heater (10) that has a conductive ceramic (11) and an insulating ceramic (16) covering the conductive ceramic (11). The conductive ceramic (11) has: a heat generating section (12) that is arranged at a tip; and a lead (14) that is connected to a rear end of the heat generating section (12). In a cross section that is perpendicular to an axis of the ceramic heater (10), the insulating ceramic (16) has a thinnest portion (16a), where an outer circumferential surface thereof and the heat generating section (12) are closest to each other, in a thickness of 0.5 to 0.7 mm.
IPC 8 full level
CPC (source: EP)
F23Q 7/001 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3736493 A1 20201111; EP 3736493 A4 20210602; EP 3736493 B1 20240313; JP WO2019102708 A1 20201022; WO 2019102708 A1 20190531
DOCDB simple family (application)
EP 18880219 A 20180926; JP 2018035539 W 20180926; JP 2019556117 A 20180926