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:
Jun. 08, 2021
Filed:
Sep. 04, 2018
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventor:
Dmitriy B. Sidelkovskiy, Ellington, CT (US);
Assignee:
Raytheon Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 21/06 (2006.01); B64D 29/00 (2006.01); B64D 33/02 (2006.01); F01D 17/08 (2006.01); F02C 7/057 (2006.01);
U.S. Cl.
CPC ...
B64C 21/06 (2013.01); B64D 29/00 (2013.01); B64D 33/02 (2013.01); F01D 17/08 (2013.01); F02C 7/057 (2013.01); B64C 2230/04 (2013.01); F05D 2270/102 (2013.01); F05D 2270/3011 (2013.01);
Abstract
A method to predict an onset of flow separation from a surface of an inner barrel of a nacelle is disclosed. In various embodiments, the method includes determining a static pressure distribution about the inner barrel surface of the nacelle; determining a mean static pressure value and a minimum static pressure value using the static pressure distribution; determining a separation indicator value using the mean static pressure value and the minimum static pressure value; and comparing the separation indicator value against a separation threshold value.