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.:
Date of Patent:
Mar. 07, 2017
Filed:
Oct. 05, 2011
Applicant:
Robert Hoffmann, Ruhstorf/Rott, DE;
Inventor:
Robert Hoffmann, Ruhstorf/Rott, DE;
Assignee:
CONTINENTAL AUTOMOTIVE GMBH, Hannover, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 5/30 (2006.01); F02M 65/00 (2006.01); F02D 41/20 (2006.01); F02D 41/22 (2006.01);
U.S. Cl.
CPC ...
F02M 65/00 (2013.01); F02D 41/2096 (2013.01); F02D 41/221 (2013.01);
Abstract
A method for monitoring the condition of a piezoinjector of a fuel injection system is disclosed. The fuel injection is carried out in injection cycles, each of which comprises a filling phase, a holding phase, and an emptying phase. The discharge resistance is ascertained during the holding phase of the piezoinjector. Conclusions about the working order of the piezoinjector are drawn using the ascertained discharge resistance.