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:
May. 16, 1995
Filed:
Nov. 18, 1992
Applicant:
Inventors:
Eugenio DiValentin, Enfield, CT (US);
Roy W Schneider, Ellington, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C / ;
U.S. Cl.
CPC ...
36442401 ; 36442405 ; 36443101 ;
Abstract
An aircraft propeller speed control defines values for propeller speed governing control law parameters, such as gains and dynamic compensations, based on known values of propeller and engine dynamic characteristics over the complete propeller operating envelope. Adjusting control law gains and dynamic compensations as functions of propeller and engine dynamic characteristics over the entire flight envelope provides for control of propeller speed to obtain optimum stability and consistent propulsion performance over the entire flight envelope.