Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2005-05-17
2005-05-17
Lo, Weilun (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S456000, C123S458000, C123S480000, C701S103000, C701S105000
Reexamination Certificate
active
06892705
ABSTRACT:
The invention relates to a method for operating an internal combustion engine (1) especially of a motor vehicle, wherein fuel, which is to be injected into a combustion chamber (4) or into an intake manifold (7) of the engine (1), is present in a pressure store (13) at a variable injection pressure (p). The injection pressure (p) in the pressure store (13) is adjusted in dependence upon the temperature (T) of the engine (1) in order to obtain an optimal operation of the engine (1) with respect to the lowest possible consumption of fuel and a lowest possible exhaust-gas emission in specific operating states of the engine (1), for example, after a cold start or during a warm-up phase. Preferably, the injection pressure (p) is increased at a temperature (T) of the engine (1) below the operating temperature thereof. In addition, the injection time point can be adjusted to later time points at low temperatures (T) of the engine (1).
REFERENCES:
patent: 4633837 (1987-01-01), Babitzka et al.
patent: 5711275 (1998-01-01), Arai et al.
patent: 5908022 (1999-06-01), Aoki et al.
patent: 6109244 (2000-08-01), Yamamoto et al.
patent: 6223731 (2001-05-01), Yoshiume et al.
patent: 6378501 (2002-04-01), Hisato et al.
patent: 195 47 644 (1997-06-01), None
patent: 0 777 042 (1997-06-01), None
patent: 0 886 058 (1998-12-01), None
patent: 2 290 112 (1995-12-01), None
Lo Weilun
Ottesen Walter
LandOfFree
Method for operating 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 Method for operating an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for operating an internal combustion engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3372706