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.

Date of Patent:
May. 02, 2023

Filed:

May. 03, 2019
Applicant:

Delphi Technologies Ip Limited, St. Michael, BB;

Inventors:

Andreas Nilsson, London, GB;

Edward Williams, London, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/22 (2006.01); F02M 51/00 (2006.01); F02D 41/30 (2006.01); F02D 41/20 (2006.01);
U.S. Cl.
CPC ...
F02D 41/221 (2013.01); F02M 51/00 (2013.01); F02D 41/30 (2013.01); F02D 2041/2055 (2013.01); F02M 2200/241 (2013.01);
Abstract

A method of determining the nature of a fault in the operation of a hydraulic fuel injector includes sending an actuation pulse to an actuator of the injector, the actuation pulse being above the minimum drive pulse of the injector. The method also includes analyzing a signal from an accelerometer of the injector to determine if there is a high frequency vibration component subsequent to the end of the activation pulse. The method also includes determining the functionality of a needle control valve of the injector dependent on the outcome of analyzing the signal from the accelerometer.


Find Patent Forward Citations

Nilsson, Andreas. (2023). Method of identifying faults in the operation of hydraulic fuel injectors having accelerometers (U.S. Patent No. 11639696). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11639696

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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