Method and device for adapting the valve characteristic of a...

Details Method and device for adapting the valve characteristic of a... Method and device for adapting the valve characteristic of a...

2011-04-19

2011-04-19

Kwon, John T (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S114000, C123S478000

Reexamination Certificate

active

07930090

ABSTRACT:
The method and the device serve to adapt the valve characteristic of a fuel injection valve, which has a piezoelectrically driven nozzle needle and by which fuel is injected directly into the combustion chamber of an internal combustion engine, to production-related or age-related variations in the injection behavior. The activation energy and the needle stroke of the fuel injection valve are controlled in such a way that the engine torque in the case of a fuel injection valve with a reference characteristic would not vary. Here, if an actually occurring variation in the engine torque is detected, then by varying the gradient of the activation-energy/valve-stroke characteristic curve of the fuel injection valve, the engine torque is matched to the engine torque generated with an injection valve with a reference characteristic.

REFERENCES:
patent: 6684850 (2004-02-01), Kowatari et al.
patent: 6997161 (2006-02-01), Fuwa et al.
patent: 7107946 (2006-09-01), Lewis et al.
patent: 7128043 (2006-10-01), Lewis et al.
patent: 7174880 (2007-02-01), Henn et al.
patent: 7209824 (2007-04-01), Henn et al.
patent: 2003/0062027 (2003-04-01), Joos et al.
patent: 2006/0047405 (2006-03-01), Bouchain et al.
patent: 199 36 944 (2001-02-01), None
patent: 199 45 618 (2001-03-01), None
patent: 101 48 217 (2003-04-01), None
patent: 199 57 732 (2004-05-01), None
patent: 102 57 686 (2004-07-01), None
patent: 103 11 011 (2004-09-01), None
patent: 103 17 654 (2004-12-01), None
patent: 103 40 975 (2005-03-01), None
patent: 103 49 883 (2005-06-01), None
patent: 10 2004 051 405 (2006-05-01), None
patent: 1 138 919 (2001-10-01), None
patent: WO 03/031787 (2003-04-01), None

Affiliated with

Also associated with

Rating

Method and device for adapting the valve characteristic of a... 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 and device for adapting the valve characteristic of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for adapting the valve characteristic of a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2707498