Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SPARK PLUG
PROBLEM TO BE SOLVED: To provide a spark plug that has plural insulating members and is enhanced in strength.SOLUTION: A spark plug includes a first insulating member having a first portion having a first hole, a second portion which has a second hole having a larger inner diameter than the first hole and is disposed to be nearer to the rear end side than the first portion, and a shelf portion formed between the first portion and the second portion, a second insulating member having a cylindrical portion which has a through-hole extending in an axial line direction and is disposed in the first hole, and a center electrode having a rod-shaped portion disposed in the through-hole of the cylindrical portion. The second insulating member has a large-diameter portion which is disposed at the rear end side of the cylindrical portion, and has a larger outer diameter than the cylindrical portion. The large-diameter portion is directly or indirectly supported by the shelf portion of the first insulating member.
【課題】複数個の絶縁部材を含むスパークプラグの強度を向上する。【解決手段】スパークプラグは、第１の孔を有する第１部分と、第１の孔より大きな内径を有する第２の孔を有し、第１部分より後端側に配置された第２部分と、第１部分と第２の部分との間に形成された棚部と、を備える第１の絶縁部材と、軸線方向に延びる貫通孔を有し第１の孔に配置された筒状部を備える第２の絶縁部材と、筒状部の貫通孔に配置される棒状部を備える中心電極と、を備える。第２の絶縁部材は、筒状部の後端側に配置され、筒状部より大きな外径を有する大径部を備える。大径部は、第１の絶縁部材の棚部に直接または間接に支持されている。【選択図】 図３
SPARK PLUG
PROBLEM TO BE SOLVED: To provide a spark plug that has plural insulating members and is enhanced in strength.SOLUTION: A spark plug includes a first insulating member having a first portion having a first hole, a second portion which has a second hole having a larger inner diameter than the first hole and is disposed to be nearer to the rear end side than the first portion, and a shelf portion formed between the first portion and the second portion, a second insulating member having a cylindrical portion which has a through-hole extending in an axial line direction and is disposed in the first hole, and a center electrode having a rod-shaped portion disposed in the through-hole of the cylindrical portion. The second insulating member has a large-diameter portion which is disposed at the rear end side of the cylindrical portion, and has a larger outer diameter than the cylindrical portion. The large-diameter portion is directly or indirectly supported by the shelf portion of the first insulating member.
【課題】複数個の絶縁部材を含むスパークプラグの強度を向上する。【解決手段】スパークプラグは、第１の孔を有する第１部分と、第１の孔より大きな内径を有する第２の孔を有し、第１部分より後端側に配置された第２部分と、第１部分と第２の部分との間に形成された棚部と、を備える第１の絶縁部材と、軸線方向に延びる貫通孔を有し第１の孔に配置された筒状部を備える第２の絶縁部材と、筒状部の貫通孔に配置される棒状部を備える中心電極と、を備える。第２の絶縁部材は、筒状部の後端側に配置され、筒状部より大きな外径を有する大径部を備える。大径部は、第１の絶縁部材の棚部に直接または間接に支持されている。【選択図】 図３
SPARK PLUG
スパークプラグ
YAMADA YUICHI (Autor:in) / KASAHARA DAISUKE (Autor:in)
22.10.2015
Patent
Elektronische Ressource
Japanisch