Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2011-06-07
2011-06-07
Kwon, John T (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S446000, C239S585100
Reexamination Certificate
active
07954475
ABSTRACT:
A fuel injector for injecting fuel into a combustion chamber of an internal combustion engine. A fuel supply line enters an injector housing from a high-pressure fuel source which can be hydraulically connected to a pressure chamber. A 3/2 directional control valve for injecting fuel into the combustion chamber has a valve piston which can be moved axially back and forth between a rest position and an injection position. The 3/2 directional control valve, by a first end face of the valve piston, is hydraulically coupled to and can be activated by a piezoelectric actuator. The 3/2 directional control has a ball element which is connected to a second end face of the valve piston and, in the rest position, can be moved against a first sealing edge and, in the injection position, can be moved against a second sealing edge.
REFERENCES:
patent: 4182492 (1980-01-01), Albert et al.
patent: 4462368 (1984-07-01), Funada
patent: 6367453 (2002-04-01), Igashira et al.
patent: 6725841 (2004-04-01), Boecking
patent: 6805101 (2004-10-01), Magel
patent: 6886535 (2005-05-01), Boehland
patent: 6892955 (2005-05-01), Grabandt
patent: 6895940 (2005-05-01), Igashira
patent: 6896208 (2005-05-01), Kuegler
patent: 2002/0117149 (2002-08-01), Igashira et al.
patent: 2006/0043210 (2006-03-01), Boecking
patent: 19949528 (2001-04-01), None
patent: 10055714 (2001-06-01), None
patent: 10325620 (2004-10-01), None
patent: 102004015744 (2005-10-01), None
patent: 102004035455 (2006-02-01), None
patent: 03004857 (2003-01-01), None
patent: 2004048769 (2004-06-01), None
Eisenmenger Nadja
Magel Hans-Christoph
Mennicken Michael
Greigg Ronald E.
Kwon John T
Robert & Bosch GmbH
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