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:
Sep. 20, 2016

Filed:

Sep. 15, 2011
Applicants:

Bret Dwayne Worden, Lawrence Park, PA (US);

Matthew Malone, Lawrence Park, PA (US);

Milan Karunaratne, Lawrence Park, PA (US);

Paul Lloyd Flynn, Lawrence Park, PA (US);

Inventors:

Bret Dwayne Worden, Lawrence Park, PA (US);

Matthew Malone, Lawrence Park, PA (US);

Milan Karunaratne, Lawrence Park, PA (US);

Paul Lloyd Flynn, Lawrence Park, PA (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02D 41/22 (2006.01); F01M 11/10 (2006.01); F02D 41/28 (2006.01);
U.S. Cl.
CPC ...
F02D 41/22 (2013.01); F01M 11/10 (2013.01); F02D 2041/228 (2013.01); F02D 2041/288 (2013.01); F02D 2250/08 (2013.01); Y02T 10/40 (2013.01);
Abstract

Methods and systems are provided for an engine including a crankcase. A condition of the engine may be diagnosed based on frequency content of crankcase pressure. Different types of degradation may be distinguished based on a frequency content of multiple frequencies of the crankcase pressure. Thus, a degraded engine component may be identified in a manner that reduces service induced delay.


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