Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2011-08-30
2011-08-30
Huynh, Hai H (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S490000, C239S102200, C310S344000
Reexamination Certificate
active
08006669
ABSTRACT:
A sealing arrangement of a piezoactuator (12) for a fuel injection valve of an internal combustion engine, has connecting pins (14) projecting out of the piezoactuator (12) and a head arrangement (16, 18) placed on to the piezoactuator (12), which is provided with openings (20) for the penetration of the connecting pins (14), wherein a liquid-tight sealing element (30) abuts against the outer surfaces of the connecting pins (14) on one side and also against the head arrangement (16, 18) on the other. In order to ensure a reliable seal with this arrangement, in particular also over extended periods of time, the sealing element (30) abuts against the outer surfaces of the connecting pins (14) located inside the openings (20), and sealing element sections (32) located inside the openings (20) are radially compressed in the openings.
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Written Opinion of the International Searching Authority (Supplementary Sheet) PCT/EP2007/056459, 1 page.
Unruh Marcus
Zumstrull Claus
Continental Automotive GmbH
Huynh Hai H
King & Spalding L.L.P.
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