Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2007-07-24
2007-07-24
Moulis, Thomas (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S468000
Reexamination Certificate
active
11218559
ABSTRACT:
A ring-shaped connecting portion is formed on a seat surface side of a pipe connector. The connecting portion is tapered so that thickness thereof gradually reduces toward a tip end thereof. A protrusion is formed on the tip end of the connecting portion. A ring-shaped groove is formed on a flat outer peripheral surface of a common rail. By fitting the protrusion into the groove, the connector can be positioned to a predetermined position of the common rail. In this structure, current can be concentrated to the protrusion and current density can be increased. As a result, sufficient bonding strength can be attained.
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Jyoko Keizo
Kondo Jun
Ohmi Yoshinori
Yamamoto Akiyoshi
DENSO Corporation
Moulis Thomas
Nixon & Vanderhye PC
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