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1. CN103999306 - 火花塞

Office
China
Application Number 201280062586.3
Application Date 06.12.2012
Publication Number 103999306
Publication Date 20.08.2014
Grant Number 103999306
Grant Date 18.05.2016
Publication Kind B
IPC
H01T 13/20
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
13Sparking plugs
20characterised by features of the electrodes or insulation
F02P 13/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
13Sparking plugs structurally combined with other parts of internal-combustion engines
CPC
H01T 13/20
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
13Sparking plugs
20characterised by features of the electrodes or insulation
H01T 13/34
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
13Sparking plugs
20characterised by features of the electrodes or insulation
34characterised by the mounting of electrodes in insulation, e.g. by embedding
Applicants 日本特殊陶业株式会社
Inventors 中村真衣
Agents 中原信达知识产权代理有限责任公司 11219
中原信达知识产权代理有限责任公司 11219
Priority Data 2011279811 21.12.2011 JP
Title
(ZH) 火花塞
Abstract
(ZH)

即使在后端侧主体部长或者绝缘体的平坦部的面积小的情况下,也能够更切实地防止绝缘体后端部的破损。火花塞(1)具备:具有轴孔(4)的绝缘子(2)、配置于绝缘子(2)的外周的主体配件(3)、以及具备插通于轴孔(4)的后端侧的腿部(6A)及从绝缘子(2)的后端露出的头部(6B)的端子电极(6)。此外,绝缘子(2)中从主体配件(3)的后端露出的部位的长度(L)被设为28mm以上且34mm以下,或平坦部(2F)的面积被设为25mm2以下。在这样的火花塞(1)中,从绝缘子(2)的后端起向轴线(CL1)方向前端侧在5.5mm的范围内,绝缘子(2)的最薄壁部(2A)的厚度(t)被设为1.0mm以上。此外,平坦部(2F)的投影区域(PA1)与平坦部(6F)的投影区域(PA2)重合的区域(AR)的面积(D)被设为8mm2以上。