Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2007-08-07
2007-08-07
Moulis, Thomas (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S447000, C123S511000
Reexamination Certificate
active
10542317
ABSTRACT:
A fuel injection system for an internal combustion engine and having a high-pressure fuel pump and a fuel injection valve for each engine cylinder. A first electrically actuated control valve controls a connection of the pump working chamber to a low-pressure region and a second electrically actuated control valve controls a connection of a control pressure chamber of the fuel injection valve to a relief region. A pressure reservoir is filled by the high-pressure fuel pump and from which fuel can be withdrawn in order to execute a fuel injection with the fuel injection valve independent of the delivery from the high-pressure fuel pump. The connection between the fuel pump and the pressure reservoir and injection valve contains a coupling device having a piston acted on at one end by the pressure prevailing in the pressure reservoir acted on at the other end by the pressure prevailing in the connection. The piston executes a delivery stroke oriented toward the pressure chamber in order to execute a fuel injection, and that the coupling device contains a bypass connection via which the connection communicates with the pressure reservoir.
REFERENCES:
patent: 4712528 (1987-12-01), Schaffitz
patent: 5433182 (1995-07-01), Augustin et al.
patent: 5954032 (1999-09-01), Augustin et al.
patent: 6374802 (2002-04-01), Boecking
patent: 6520152 (2003-02-01), Mahr et al.
patent: 6637408 (2003-10-01), Djordjevic
patent: 2002/0002964 (2002-01-01), Kohketsu et al.
patent: 2006/0162695 (2006-07-01), Shibata
patent: 196 51 671 (1998-06-01), None
patent: 197 47 092 (1999-04-01), None
patent: 1 273 797 (2003-01-01), None
Greigg Ronald E.
Moulis Thomas
LandOfFree
Fuel injection device for an internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fuel injection device for an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel injection device for an internal combustion engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3836601