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:
Apr. 25, 2023

Filed:

Jan. 16, 2020
Applicant:

Pratt & Whitney Canada Corp., Longueuil, CA;

Inventor:

Sarmad Khan, Mississauga, CA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 23/80 (2022.01); G01F 23/24 (2006.01); H01H 36/02 (2006.01); G01F 23/263 (2022.01); F01M 11/12 (2006.01); G01F 25/20 (2022.01);
U.S. Cl.
CPC ...
G01F 23/802 (2022.01); F01M 11/12 (2013.01); G01F 23/24 (2013.01); G01F 23/266 (2013.01); G01F 25/20 (2022.01); H01H 36/02 (2013.01);
Abstract

Methods and systems for sensing a fluid level associated with an engine are described. The method comprises generating an input signal and applying the input signal to a resistive portion and a capacitive portion of a fluid level sensing device, measuring a first varying output of the resistive portion of the fluid level sensing device through a first channel of a controller of the engine, measuring a second varying output of the capacitive portion of the fluid level sensing device through a second channel of the controller of the engine, and translating at least one of the first varying output and the second varying output into a level of fluid and outputting the level of fluid.


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