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. 26, 2021
Filed:
Feb. 07, 2019
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Daniel L. Gysling, Glastonbury, CT (US);
Philip Andrew Varney, Manchester, CT (US);
Assignee:
Raytheon Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/16 (2006.01); F16F 15/023 (2006.01); F16F 15/027 (2006.01);
U.S. Cl.
CPC ...
F01D 25/164 (2013.01); F16F 15/0237 (2013.01); F16F 15/0275 (2013.01); F16F 2222/12 (2013.01); F16F 2228/066 (2013.01); F16F 2230/06 (2013.01); F16F 2230/08 (2013.01);
Abstract
An actively controlled squeeze film damper system comprises a housing defining an annulus receiving a damping fluid during operation, a lubricant source supplying damping fluid to the annulus, and a sensor assembly for measuring a parameter indicative of a compressibility of the damping fluid. A control device adjusts the compressibility of the damping fluid within a predefined range.