Internal-combustion engines – Igniters – Sparkers
Patent
1999-03-16
2000-07-11
Yuen, Henry C.
Internal-combustion engines
Igniters
Sparkers
439126, H01R 3300
Patent
active
060857102
ABSTRACT:
A plug boot contains an ignition cable which is fitted with the stud terminal of a spark plug extending from an engine cylinder block. This plug boot is covered with a heat shield, and further with an auxiliary heat shield. The cylinder-side end portion of the auxiliary heat shield is fixed between the spark plug and the cylinder block. The cable-side end portion of the auxiliary heat shield is provided with a lid unit. This lid unit includes a fixing retaining member and a pressing portion. The fixing retaining member fits the lid unit to the auxiliary heat shield, while the pressing portion exerts downward forces on the plug boot. By the combination of fitting forces and downward forces, the ignition cable and the spark plug are reliably connected.
REFERENCES:
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patent: 4163597 (1979-08-01), Brenholts
patent: 4497532 (1985-02-01), Bezusko et al.
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Kobayashi Yoshinao
Uchiyama Takehito
Sumitomo Wiring Systems Ltd
Vo Hieu T.
Yuen Henry C.
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