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1. (WO2018181654) SPARK PLUG FOR INTERNAL COMBUSTION ENGINE
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Pub. No.: WO/2018/181654 International Application No.: PCT/JP2018/013102
Publication Date: 04.10.2018 International Filing Date: 29.03.2018
IPC:
H01T 13/20 (2006.01) ,H01T 13/32 (2006.01) ,H01T 13/52 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
T
SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
13
Sparking plugs
20
characterised by features of the electrodes or insulation
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
T
SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
13
Sparking plugs
20
characterised by features of the electrodes or insulation
32
characterised by features of the earthed electrode
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
T
SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
13
Sparking plugs
52
characterised by a discharge along a surface
Applicants:
株式会社デンソー DENSO CORPORATION [JP/JP]; 愛知県刈谷市昭和町1丁目1番地 1-1, Showa-cho, Kariya-city, Aichi 4488661, JP
Inventors:
伊藤 晋太郎 ITOH, Shintaro; JP
田中 大介 TANAKA, Daisuke; JP
杉浦 明光 SUGIURA, Akimitsu; JP
若杉 亮太 WAKASUGI, Ryota; JP
土井 香 DOI, Kaori; JP
青木 文明 AOKI, Fumiaki; JP
寺田 金千代 TERADA, Kanechiyo; JP
三輪 哲也 MIWA, Tetsuya; JP
Agent:
東田 潔 TOHDA, Kiyoshi; JP
Priority Data:
2017-06987231.03.2017JP
2018-05253920.03.2018JP
Title (EN) SPARK PLUG FOR INTERNAL COMBUSTION ENGINE
(FR) BOUGIE D'ALLUMAGE POUR MOTEUR À COMBUSTION INTERNE
(JA) 内燃機関用のスパークプラグ
Abstract:
(EN) A spark plug 1 has: a cylindrical earthed electrode 2; an insulator 3; and a center electrode 4. The insulator 3 has an insulator projected part 31 that projects to a tip side in a plug axial direction Z more than the earthed electrode 2. The center electrode 4 has an exposed part 41 that is exposed from the tip of the insulator projected part 31. The exposed part 41 of the center electrode 4 has a first section 411 that covers the insulator projected part 31 from the tip side in the plug axial direction Z, and a second section 412 that extends from the first section 411 to the base end side in the plug axial direction Z and covers the entire circumference of the outer circumferential surface 31b of the insulator projected part 31 from the outer circumferential side in the plug diameter direction.
(FR) L'invention concerne une bougie d'allumage 1 comprenant : une électrode cylindrique mise à la terre 2; un isolant 3; et une électrode centrale 4. L'isolant 3 a une partie saillante d'isolant 31 qui fait saillie vers un côté de pointe dans une direction axiale de fiche Z plus que l'électrode mise à la terre 2. L'électrode centrale 4 comprend une partie exposée 41 qui est exposée à partir de la pointe de la partie saillante d'isolant 31. La partie exposée 41 de l'électrode centrale 4 comprend une première section 411 qui recouvre la partie saillante d'isolant 31 depuis le côté de pointe dans la direction axiale de fiche Z, et une seconde section 412 qui s'étend à partir de la première section 411 vers le côté d'extrémité de base dans la direction axiale de fiche Z et recouvre toute la circonférence de la surface circonférentielle externe 31b de la partie saillante d'isolant 31 depuis le côté circonférentiel externe dans la direction du diamètre de la fiche.
(JA) スパークプラグ1は、筒状の接地電極2と絶縁碍子3と中心電極4とを有する。絶縁碍子3は、接地電極2よりもプラグ軸方向Zの先端側へ突出した碍子突出部31を有する。中心電極4は、碍子突出部31の先端から露出した露出部41を有する。中心電極4の露出部41は、碍子突出部31をプラグ軸方向Zの先端側から覆う第一部位411と、第一部位411からプラグ軸方向Zの基端側に延設されると共に碍子突出部31の外周面31bの全周を、プラグ径方向の外周側から覆う第二部位412とを有する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)