Internal-combustion engines – Charge forming device – With fuel pump
Reexamination Certificate
2006-03-21
2006-03-21
Miller, Carl S. (Department: 3747)
Internal-combustion engines
Charge forming device
With fuel pump
C123S514000, C251S363000
Reexamination Certificate
active
07013877
ABSTRACT:
A pressure control valve for a high-pressure diesel pump of an injection device of a motor vehicle has a valve body and a piezo drive with a tappet securing the valve body in a closed position. The valve body in the closed position closes off a bore, containing a medium under pressure, relative to a pressure-relief bore. The piezo drive has at least one piezo element connected to the tappet. The piezo drive is mounted in a pump housing of the high-pressure diesel pump. A screw element receives the piezo drive and is used to screw the piezo drive into the mounting chamber of the pump housing.
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Neuhaus Rolf
Trzmiel Alfred
Zapf Friedrich
Huckett Gudrun E.
Hydraulik-Ring GmbH
Miller Carl S.
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