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:
Nov. 17, 2020

Filed:

Jun. 23, 2016
Applicant:

United Technologies Corporation, Farmington, CT (US);

Inventors:

Anthony C. Jones, San Diego, CA (US);

Behzad Hagshenas, San Diego, CA (US);

Assignee:

Raytheon Technologies Corporation, Farmington, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64D 41/00 (2006.01); F02C 6/00 (2006.01); F02C 9/42 (2006.01); B64C 13/38 (2006.01); F01D 15/08 (2006.01); F01D 15/10 (2006.01); F02C 7/262 (2006.01); F02C 7/277 (2006.01);
U.S. Cl.
CPC ...
B64D 41/00 (2013.01); B64C 13/38 (2013.01); F01D 15/08 (2013.01); F01D 15/10 (2013.01); F02C 6/00 (2013.01); F02C 7/262 (2013.01); F02C 7/277 (2013.01); F02C 9/42 (2013.01); B64D 2221/00 (2013.01); F05D 2220/323 (2013.01); F05D 2220/50 (2013.01); Y02T 50/44 (2013.01);
Abstract

An aircraft system includes a component configured to operate with a minimum power demand. The aircraft system also includes an auxiliary power unit including an engine. The auxiliary power unit is configured to power the component and to operate the engine in a plurality of operating modes including a power mode and a standby mode. The auxiliary power unit generates a first power output at least equal to the minimum power demand during the power mode. The auxiliary power unit generates a second power output less than the minimum power demand during the standby mode.


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