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:
Dec. 07, 2021
Filed:
Jun. 21, 2019
Applicant:
Honeywell International Inc., Morris Plains, NJ (US);
Inventors:
Robert Mallette, Mesa, AZ (US);
Harold Riley, Gilbert, AZ (US);
Assignee:
HONEYWELL INTERNATIONAL INC., Charlotte, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64D 41/00 (2006.01); F01D 25/20 (2006.01); F02C 7/06 (2006.01); F16N 29/02 (2006.01); F16N 7/40 (2006.01);
U.S. Cl.
CPC ...
B64D 41/00 (2013.01); F01D 25/20 (2013.01); F02C 7/06 (2013.01); F16N 7/40 (2013.01); F16N 29/02 (2013.01); F05D 2220/50 (2013.01); F05D 2260/80 (2013.01); F05D 2260/98 (2013.01); F16N 2210/04 (2013.01); F16N 2250/18 (2013.01);
Abstract
An auxiliary power unit (APU) oil quantity indication system and method provides a stable and accurate oil quantity indication during startup, mission duration and shutdown. The system determines a gulp value at various stages of operation, which is combined with a raw oil quantity indication to provide an indicated oil quantity.