Method of operating a fuel injector

Internal-combustion engines – Charge forming device – Fuel injection system

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C701S103000

Reexamination Certificate

active

07856963

ABSTRACT:
A method of operating a fuel injector having a piezoelectric actuator operable by applying a drive pulse thereto, wherein the drive pulse has a frequency domain signature. The method includes i) determining at least one resonant frequency of an injector installation in which the injector is received, in use, and ii) modifying the drive pulse such that a maximum of the frequency domain signature thereof is remote from the determined resonant frequency of the injector installation.

REFERENCES:
patent: 4784102 (1988-11-01), Toshihiko
patent: 5957109 (1999-09-01), Schonfelder
patent: 6155500 (2000-12-01), Takase
patent: 2003/0150420 (2003-08-01), Ishikawa et al.
patent: 2004/0169436 (2004-09-01), Yasuhiro
patent: 2005/0234630 (2005-10-01), Nakazawa et al.
patent: 2006/0096575 (2006-05-01), Araki et al.
patent: 10146068 (2003-04-01), None
patent: 0 995 899 (2000-04-01), None
patent: 1 398 487 (2004-03-01), None
patent: 1 411 239 (2004-04-01), None
patent: 1 772 952 (2007-04-01), None
patent: 10227249 (1998-08-01), None
patent: 2000-23474 (2000-01-01), None
patent: WO 2004/082117 (2004-09-01), None
Japan Office Action dated Nov. 26, 2009.
European Search Report dated Jul. 15, 2008.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of operating a fuel injector 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 of operating a fuel injector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of operating a fuel injector will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4200459

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.