Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2005-03-29
2005-03-29
Lo, Weilun (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S446000, C123S506000, C239S533200, C239S533300, C239S585500
Reexamination Certificate
active
06871636
ABSTRACT:
A fuel injection system for internal combustion engines includes a plurality of injection valves, each connected to an injection line and each having a nozzle chamber and a control chamber, which both communicate with the injection line; a valve member, which controls the injection openings and is actuatable via a first control face, located in the nozzle chamber and acting in the valve opening direction, and via a second control face located in the control chamber and acting in the valve closing direction; a first valve for controlling the pressure prevailing in the control chamber; and a second valve for switching the injection pressure. Both valves, have a common valve body with the valve body stroke H2required to close the first valve being greater than the stroke H1required to open the second valve.
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Greigg Ronald E.
Lo Weilun
Robert & Bosch GmbH
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