SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD THEREOF
To provide a spark plug for an internal combustion engine in which airtightness can be ensured easily between the spark plug and a cylinder head.SOLUTION: A spark plug 1 for an internal combustion engine includes a cylindrical housing 2. An outer peripheral surface of the housing 2 has a parallel pl...
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| creator | KAWAI KAZUHIDE |
| description | To provide a spark plug for an internal combustion engine in which airtightness can be ensured easily between the spark plug and a cylinder head.SOLUTION: A spark plug 1 for an internal combustion engine includes a cylindrical housing 2. An outer peripheral surface of the housing 2 has a parallel plane 2a, a pressure-welding plane 2c and a coupling surface 2b. The parallel plane 2a is formed in parallel with the axial direction Z of the spark plug 1. The pressure-welding plane 2c is formed closer to the tip side than the parallel plane 2a and on the inner peripheral side. The pressure-welding plane 2c is tapered to reduce diameter toward the tip side. In a state where the spark plug 1 is attached to an internal combustion engine, the pressure-welding plane 2c is in pressure contact with a cylinder head 11. In the axial section, the coupling surface 2b is formed to be confined in a region closer to the base end side than the extension Lc of the pressure-welding plane 2c. The axial section is the section of the spark plug 1 parallel with the axial direction Z passing through the plug central axis. The coupling surface 2b is a surface connecting the tip of the parallel plane 2a and the outer peripheral end of the pressure-welding plane 2c.SELECTED DRAWING: Figure 1
【課題】スパークプラグとシリンダヘッドとの間の気密性を確保しやすい内燃機関用のスパークプラグを提供する。【解決手段】内燃機関用のスパークプラグ１は、筒状のハウジング２を備える。ハウジング２の外周面は、平行面２ａと圧接面２ｃと連結面２ｂとを有する。平行面２ａは、スパークプラグ１の軸方向Ｚに平行に形成されている。圧接面２ｃは、平行面２ａよりも先端側かつ内周側に形成されている。圧接面２ｃは、先端側へ向かうほど縮径するテーパ状に形成されている。スパークプラグ１が内燃機関に取り付けられた状態において、圧接面２ｃは、シリンダヘッド１１に圧接する。軸方向断面において、連結面２ｂは、圧接面２ｃの延長線Ｌｃよりも基端側の領域に収まるよう形成されている。軸方向断面は、プラグ中心軸を通る軸方向Ｚに平行なスパークプラグ１の断面である。連結面２ｂは、平行面２ａの先端と圧接面２ｃの外周端とをつなぐ面である。【選択図】図１ |
| format | Patent |
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【課題】スパークプラグとシリンダヘッドとの間の気密性を確保しやすい内燃機関用のスパークプラグを提供する。【解決手段】内燃機関用のスパークプラグ１は、筒状のハウジング２を備える。ハウジング２の外周面は、平行面２ａと圧接面２ｃと連結面２ｂとを有する。平行面２ａは、スパークプラグ１の軸方向Ｚに平行に形成されている。圧接面２ｃは、平行面２ａよりも先端側かつ内周側に形成されている。圧接面２ｃは、先端側へ向かうほど縮径するテーパ状に形成されている。スパークプラグ１が内燃機関に取り付けられた状態において、圧接面２ｃは、シリンダヘッド１１に圧接する。軸方向断面において、連結面２ｂは、圧接面２ｃの延長線Ｌｃよりも基端側の領域に収まるよう形成されている。軸方向断面は、プラグ中心軸を通る軸方向Ｚに平行なスパークプラグ１の断面である。連結面２ｂは、平行面２ａの先端と圧接面２ｃの外周端とをつなぐ面である。【選択図】図１</description><language>eng ; jpn</language><subject>BASIC ELECTRIC ELEMENTS ; CORONA DEVICES ; ELECTRICITY ; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES ; OVERVOLTAGE ARRESTERS USING SPARK GAPS ; SPARK GAPS ; SPARKING PLUGS</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200806&DB=EPODOC&CC=JP&NR=2020119687A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200806&DB=EPODOC&CC=JP&NR=2020119687A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KAWAI KAZUHIDE</creatorcontrib><title>SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD THEREOF</title><description>To provide a spark plug for an internal combustion engine in which airtightness can be ensured easily between the spark plug and a cylinder head.SOLUTION: A spark plug 1 for an internal combustion engine includes a cylindrical housing 2. An outer peripheral surface of the housing 2 has a parallel plane 2a, a pressure-welding plane 2c and a coupling surface 2b. The parallel plane 2a is formed in parallel with the axial direction Z of the spark plug 1. The pressure-welding plane 2c is formed closer to the tip side than the parallel plane 2a and on the inner peripheral side. The pressure-welding plane 2c is tapered to reduce diameter toward the tip side. In a state where the spark plug 1 is attached to an internal combustion engine, the pressure-welding plane 2c is in pressure contact with a cylinder head 11. In the axial section, the coupling surface 2b is formed to be confined in a region closer to the base end side than the extension Lc of the pressure-welding plane 2c. The axial section is the section of the spark plug 1 parallel with the axial direction Z passing through the plug central axis. The coupling surface 2b is a surface connecting the tip of the parallel plane 2a and the outer peripheral end of the pressure-welding plane 2c.SELECTED DRAWING: Figure 1
【課題】スパークプラグとシリンダヘッドとの間の気密性を確保しやすい内燃機関用のスパークプラグを提供する。【解決手段】内燃機関用のスパークプラグ１は、筒状のハウジング２を備える。ハウジング２の外周面は、平行面２ａと圧接面２ｃと連結面２ｂとを有する。平行面２ａは、スパークプラグ１の軸方向Ｚに平行に形成されている。圧接面２ｃは、平行面２ａよりも先端側かつ内周側に形成されている。圧接面２ｃは、先端側へ向かうほど縮径するテーパ状に形成されている。スパークプラグ１が内燃機関に取り付けられた状態において、圧接面２ｃは、シリンダヘッド１１に圧接する。軸方向断面において、連結面２ｂは、圧接面２ｃの延長線Ｌｃよりも基端側の領域に収まるよう形成されている。軸方向断面は、プラグ中心軸を通る軸方向Ｚに平行なスパークプラグ１の断面である。連結面２ｂは、平行面２ａの先端と圧接面２ｃの外周端とをつなぐ面である。【選択図】図１</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CORONA DEVICES</subject><subject>ELECTRICITY</subject><subject>GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES</subject><subject>OVERVOLTAGE ARRESTERS USING SPARK GAPS</subject><subject>SPARK GAPS</subject><subject>SPARKING PLUGS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyr0KwjAQAOAsDqK-w-EutBW0jmd6-anNpaTJXIrESbRQ3x8XH8DpW761aIceww36LmlQPoDlSIGxA-ndNQ3RegZibZkAuQGHnBTKmIJlDY6i8Q1EQ4G82orVY3ouefdzI_aKojSHPL_HvMzTPb_yZ2z7qqiKsryc6jMe_0pfxcAt-A</recordid><startdate>20200806</startdate><enddate>20200806</enddate><creator>KAWAI KAZUHIDE</creator><scope>EVB</scope></search><sort><creationdate>20200806</creationdate><title>SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD THEREOF</title><author>KAWAI KAZUHIDE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2020119687A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2020</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CORONA DEVICES</topic><topic>ELECTRICITY</topic><topic>GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES</topic><topic>OVERVOLTAGE ARRESTERS USING SPARK GAPS</topic><topic>SPARK GAPS</topic><topic>SPARKING PLUGS</topic><toplevel>online_resources</toplevel><creatorcontrib>KAWAI KAZUHIDE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KAWAI KAZUHIDE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD THEREOF</title><date>2020-08-06</date><risdate>2020</risdate><abstract>To provide a spark plug for an internal combustion engine in which airtightness can be ensured easily between the spark plug and a cylinder head.SOLUTION: A spark plug 1 for an internal combustion engine includes a cylindrical housing 2. An outer peripheral surface of the housing 2 has a parallel plane 2a, a pressure-welding plane 2c and a coupling surface 2b. The parallel plane 2a is formed in parallel with the axial direction Z of the spark plug 1. The pressure-welding plane 2c is formed closer to the tip side than the parallel plane 2a and on the inner peripheral side. The pressure-welding plane 2c is tapered to reduce diameter toward the tip side. In a state where the spark plug 1 is attached to an internal combustion engine, the pressure-welding plane 2c is in pressure contact with a cylinder head 11. In the axial section, the coupling surface 2b is formed to be confined in a region closer to the base end side than the extension Lc of the pressure-welding plane 2c. The axial section is the section of the spark plug 1 parallel with the axial direction Z passing through the plug central axis. The coupling surface 2b is a surface connecting the tip of the parallel plane 2a and the outer peripheral end of the pressure-welding plane 2c.SELECTED DRAWING: Figure 1
【課題】スパークプラグとシリンダヘッドとの間の気密性を確保しやすい内燃機関用のスパークプラグを提供する。【解決手段】内燃機関用のスパークプラグ１は、筒状のハウジング２を備える。ハウジング２の外周面は、平行面２ａと圧接面２ｃと連結面２ｂとを有する。平行面２ａは、スパークプラグ１の軸方向Ｚに平行に形成されている。圧接面２ｃは、平行面２ａよりも先端側かつ内周側に形成されている。圧接面２ｃは、先端側へ向かうほど縮径するテーパ状に形成されている。スパークプラグ１が内燃機関に取り付けられた状態において、圧接面２ｃは、シリンダヘッド１１に圧接する。軸方向断面において、連結面２ｂは、圧接面２ｃの延長線Ｌｃよりも基端側の領域に収まるよう形成されている。軸方向断面は、プラグ中心軸を通る軸方向Ｚに平行なスパークプラグ１の断面である。連結面２ｂは、平行面２ａの先端と圧接面２ｃの外周端とをつなぐ面である。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS CORONA DEVICES ELECTRICITY GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES OVERVOLTAGE ARRESTERS USING SPARK GAPS SPARK GAPS SPARKING PLUGS |
| title | SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD THEREOF |
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