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:
Nov. 10, 2020
Filed:
Aug. 10, 2018
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/00 (2019.01); F16N 29/02 (2006.01); B64C 11/30 (2006.01); B64C 11/40 (2006.01); B63H 3/08 (2006.01); G01F 15/00 (2006.01); B64C 11/00 (2006.01);
U.S. Cl.
CPC ...
F16N 29/02 (2013.01); B63H 3/08 (2013.01); B64C 11/00 (2013.01); B64C 11/303 (2013.01); B64C 11/40 (2013.01); G01F 15/003 (2013.01); F16N 2210/08 (2013.01); F16N 2230/00 (2013.01); F16N 2250/04 (2013.01); F16N 2250/08 (2013.01); F16N 2270/20 (2013.01);
Abstract
There is described herein methods and system for correcting steady state errors in propeller speed by calculating a leakage flow rate as a function of engine and propeller parameters.