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. 12, 2020

Filed:

Jul. 26, 2016
Applicant:

United Technologies Corporation, Farmington, CT (US);

Inventor:

Gregory S. Hagen, Glastonbury, CT (US);

Assignee:

UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 21/00 (2006.01); G01N 33/28 (2006.01); F16N 29/04 (2006.01); F02C 3/04 (2006.01); F02C 7/06 (2006.01); G01M 15/14 (2006.01);
U.S. Cl.
CPC ...
F01D 21/003 (2013.01); F02C 3/04 (2013.01); F02C 7/06 (2013.01); F16N 29/04 (2013.01); G01M 15/14 (2013.01); G01N 33/2858 (2013.01); F05D 2220/32 (2013.01); F05D 2240/35 (2013.01); F05D 2260/98 (2013.01); F16N 2250/32 (2013.01);
Abstract

A debris monitoring system has a first sensor configured to generate a first signal indicating a presence of a metallic particle in a lubrication system. A second sensor is configured to generate a second signal indicating the presence of a metallic particle in the lubrication system. A signal processor is configured to determine a presence of a metallic particle in a fluid passage based on a comparison of at least the first signal and the second signal; the second signal being used to verify accuracy of the first signal. A gas turbine engine and a method for monitoring a fluid passage for debris are also disclosed.


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