Glow plug with pressure sensor

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United States of America Patent

PATENT NO 9897063
SERIAL NO

14356316

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A glow plug (100) includes: a housing (130) having a metal shell (110) and a cap unit (120); and a heater unit (150). A coupling member (180) is joined with the housing (130) and is also joined with the heater unit (150) at its edge portion (188), so as to enable the heater unit (150) to move along an axis line O and couple the heater unit (150) with the housing (130). When the edge portion 188 of the coupling member 180 is irradiated with a laser, at least part of the edge portion (188) melted by laser welding fills a gap (50) between the coupling member (180) and the heater unit (150) to form a welded part (210). As a result, even when there is a gap prior to welding, the weld strength between the coupling member (180) and the heater unit (150) can be maintained.

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First Claim

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Patent Owner(s)

  • NGK SPARK PLUG CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawakatsu, Masahiro Komaki, JP 2 17
Maeda, Shunsuke Duesseldorf, DE 20 197
Nakamura, Yoshihiro Iwakura, JP 109 1068
Suzuki, Hiroyuki Kasugai, JP 830 9965

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