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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9556839 B1

PDFFull Text
Expired
Date of Patent:
Jan. 31, 2017

Filed:

Mar. 14, 2013

Method for operating a fuel injection system and fuel injection system comprising fuel injection valves with a piezo direct-drive

Applicant:

Continental Automotive Gmbh, Hannover, DE;

Inventors:

Hong Zhang, Tegernheim, DE;

Detlev Schoeppe, Wenzenbach, DE;

Assignee:

CONTINENTAL AUTOMOTIVE GMBH, Hanover, DE;

Attorney:

Slayden Grubert Beard PLLC

Primary Examiner:

Lindsay Low

Assistant Examiner:

George Jin

Int. Cl.
CPC ...
F02M 51/06 (2006.01); F02M 47/02 (2006.01); F02D 19/02 (2006.01); F02D 41/20 (2006.01); F02M 65/00 (2006.01); F02D 28/00 (2006.01); F02D 41/38 (2006.01);
U.S. Cl.
CPC ...
F02M 51/0603 (2013.01); F02D 19/027 (2013.01); F02D 28/00 (2013.01); F02D 41/2096 (2013.01); F02D 41/3809 (2013.01); F02M 47/027 (2013.01); F02M 65/00 (2013.01); F02D 2200/0602 (2013.01); F02D 2250/31 (2013.01); F02D 2400/08 (2013.01); F02M 2200/24 (2013.01); F02M 2200/247 (2013.01);
Abstract

A method for operating a fuel injection system includes detecting the pressure prevailing in a pressure accumulator using a fuel injection valve piezo actuator that includes, in addition to the active piezo region used to actuate the closing element, a passive piezo region that acts as a pressure sensor. Using this pressure sensor, the closing element force acting on the passive piezo region, and therefore the pressure prevailing in the pressure accumulator, can be determined.

Find Patent Forward Citations

Quick Actions:

Zhang, Hong. (2017). Method for operating a fuel injection system and fuel injection system comprising fuel injection valves with a piezo direct-drive (U.S. Patent No. 9556839). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9556839

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