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1. (WO2017110209) IGNITION PLUG AND IGNITION SYSTEM PROVIDED WITH SAME
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/110209 International Application No.: PCT/JP2016/079898
Publication Date: 29.06.2017 International Filing Date: 07.10.2016
IPC:
H01T 13/50 (2006.01) ,F02B 23/08 (2006.01) ,F02P 3/01 (2006.01) ,F02P 13/00 (2006.01) ,H01T 13/20 (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
50
having means for ionisation of gap
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
23
Other engines characterised by special shape or construction of combustion chambers to improve operation
08
with positive ignition
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
P
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
3
Other electric spark ignition installations characterised by the type of ignition power generation storage
01
Electric spark ignition installations without subsequent energy storage, i.e. energy supplied by an electrical oscillator
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
P
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
13
Sparking plugs structurally combined with other parts of internal-combustion engines
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
Applicants:
三菱電機株式会社 MITSUBISHI ELECTRIC CORPORATION [JP/JP]; 東京都千代田区丸の内二丁目7番3号 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008310, JP
日本特殊陶業株式会社 NGK SPARK PLUG CO., LTD. [JP/JP]; 愛知県名古屋市瑞穂区高辻町14番18号 14-18, Takatsuji-cho, Mizuho-ku, Nagoya-shi, Aichi 4678525, JP
Inventors:
民田 太一郎 TAMIDA Taichiro; JP
井上 貴裕 INOUE Takahiro; JP
橋本 隆 HASHIMOTO Takashi; JP
中川 光 NAKAGAWA Akira; JP
坂下 友一 SAKASHITA Tomokazu; JP
永井 孝佳 NAGAI Takayoshi; JP
棚谷 公彦 TANAYA Kimihiko; JP
亀田 裕之 KAMEDA Hiroyuki; JP
山田 裕一 YAMADA Yuichi; JP
伴 謙治 BAN Kenji; JP
Agent:
大岩 増雄 OIWA Masuo; JP
竹中 岑生 TAKENAKA Mineo; JP
村上 啓吾 MURAKAMI Keigo; JP
吉澤 憲治 YOSHIZAWA Kenji; JP
Priority Data:
2015-25092724.12.2015JP
Title (EN) IGNITION PLUG AND IGNITION SYSTEM PROVIDED WITH SAME
(FR) BOUGIE D’ALLUMAGE ET SYSTÈME D’ALLUMAGE LA COMPORTANT
(JA) 点火プラグ及びこれを備えた点火システム
Abstract:
(EN) According to the present invention, in an ignition plug (1), due to a ground electrode (14) being set to have a thin rod or net shape, a sufficiently strong radical is generated locally via a barrier discharge and the quenching effect by the electrode is small and flame growth is not readily prevented. Further, by making a thickness dimension of a second dielectric body (12b) facing a discharge region (15) uniform, the barrier discharge expands on a surface of the second dielectric body (12b), radical generation is maintained and combustibility after ignition is promoted. Further, an end part (11c) of a high voltage electrode (11) and the ground electrode (14) are arranged facing one another in a combustion chamber (22), so a fuel gas introduced to the combustion chamber (22) readily flows to the discharge region (15) and is readily ignited by the radical generated via discharge.
(FR) Selon la présente invention, dans une bougie d’allumage (1), en raison de la mise en forme de tige mince ou de filet d’une électrode de masse (14), un radical suffisamment fort est généré localement grâce à une décharge de barrière, et l’effet d’extinction par l’électrode est faible et la croissance de flamme n’est pas facilement évitée. En outre, en uniformisant une dimension d’épaisseur d’un deuxième corps diélectrique (12b) faisant face à une zone de décharge (15), la décharge de barrière s’étend sur une surface du deuxième corps diélectrique (12b), la génération de radical est maintenue et la combustibilité après l’allumage est promue. En outre, une partie d’extrémité (11c) d’une électrode à haute tension (11) et l’électrode de masse (14) sont agencées en vis-à-vis dans une chambre de combustion (22), de sorte qu’un gaz combustible introduit dans la chambre de combustion (22) s’écoule facilement vers la zone de décharge (15) et est facilement allumé par le radical généré par décharge.
(JA) 点火プラグ(1)において、接地電極(14)を細い棒状または網状とすることにより、バリア放電によって局所的に十分強いラジカルが生成されると共に、電極による消炎効果が少なく火炎の成長を妨げにくい。また、放電領域(15)に対面する第二誘電体(12b)の厚さ寸法を均一にすることにより、バリア放電は第二誘電体(12b)の表面に広がり、ラジカルの生成が維持され着火後の燃焼性が促進される。また、高電圧電極(11)の端部(11c)と接地電極(14)が燃焼室(22)の内部で対向配置されているので、燃焼室(22)に導入された燃料ガスが放電領域(15)に流れ込み易く、放電で生じたラジカルによって着火され易い。
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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, JP, KE, KG, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
Also published as:
JPWO2017110209CN108370134US20180301877EP3396795