Method for diagnosis in a fuel injection device comprising a...

Details Method for diagnosis in a fuel injection device comprising a... Method for diagnosis in a fuel injection device comprising a...

2004-08-07

2008-12-23

McCall, Eric S (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Fuel system or part thereof

Reexamination Certificate

active

07467543

ABSTRACT:
A method for diagnosing a fuel injection device which includes a piezoelectric actuator, with which a valve element is actuated. The fuel injection device is connected to a diagnostic device which applies a defined voltage to the piezoelectric actuator. The charge introduced into the piezoelectric actuator, and from that a capacitance of the piezoelectric actuator, are ascertained by means of the diagnostic device.

REFERENCES:
patent: 6472796 (2002-10-01), Hoffmann et al.
patent: 6478013 (2002-11-01), Boecking
patent: 6705291 (2004-03-01), Rueger et al.
patent: 2001/0039484 (2001-11-01), Freudenberg et al.
patent: 2002/0000218 (2002-01-01), Rueger et al.
patent: 2002/0023622 (2002-02-01), Rueger et al.
patent: 198 45 042 (2000-04-01), None
patent: 1 138 907 (2001-10-01), None
patent: 1 139 448 (2001-10-01), None
patent: 1 167 729 (2002-01-01), None
patent: 2002-134804 (2002-05-01), None
patent: 2003-219664 (2003-07-01), None
patent: WO 99/67527 (1999-12-01), None
patent: WO 2004/051066 (2004-06-01), None

Affiliated with

Also associated with

Rating

Method for diagnosis in a fuel injection device comprising 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 for diagnosis in a fuel injection device comprising a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for diagnosis in a fuel injection device comprising a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4041060