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:
Jan. 10, 2023
Filed:
Feb. 21, 2022
Applicant:
Raytheon Technologies Corporation, Farmington, CT (US);
Inventors:
Paul H. Dolman, Simsbury, CT (US);
Michael E. McCune, Colchester, CT (US);
Assignee:
Raytheon Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/20 (2006.01); F16H 57/04 (2010.01); F02C 7/36 (2006.01); F01M 11/06 (2006.01); F01M 1/12 (2006.01); F16N 7/40 (2006.01);
U.S. Cl.
CPC ...
F01D 25/20 (2013.01); F16H 57/0475 (2013.01); F01M 11/067 (2013.01); F01M 2001/123 (2013.01); F01M 2001/126 (2013.01); F02C 7/36 (2013.01); F05D 2220/32 (2013.01); F05D 2260/98 (2013.01); F16H 57/04 (2013.01); F16N 7/40 (2013.01);
Abstract
A disclosed lubrication system for a turbofan engine includes a pump for driving lubricant through a lubrication circuit, at least one sensor generating a signal indicative of an engine operating condition and at least one valve for controlling a flow of lubricant through the lubrication circuit. A controller controls operation of the valve to vary the flow of lubricant based on the engine operating condition to maintain lubricant flow within predefined operating limits.