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:
Jun. 01, 2021
Filed:
Mar. 25, 2019
Applicant:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Inventors:
Stephen Michael Bortoli, Roscoe, IL (US);
Daniel Kuehn, Roscoe, IL (US);
Assignee:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/04 (2006.01); F03D 7/02 (2006.01); F03D 9/25 (2016.01); F03D 9/32 (2016.01); F03D 80/70 (2016.01); B64D 41/00 (2006.01); F03D 1/00 (2006.01); F03D 1/06 (2006.01); F16C 27/04 (2006.01); F16C 27/06 (2006.01); F16C 35/067 (2006.01);
U.S. Cl.
CPC ...
F03D 7/0296 (2013.01); B64D 41/007 (2013.01); F03D 1/00 (2013.01); F03D 1/0666 (2013.01); F03D 9/25 (2016.05); F03D 9/32 (2016.05); F03D 80/70 (2016.05); F16C 27/04 (2013.01); F16C 27/06 (2013.01); F16C 35/067 (2013.01); F05B 2220/31 (2013.01); F05B 2240/932 (2013.01); F05B 2260/96 (2013.01); F05B 2260/964 (2013.01);
Abstract
A ram air turbine (RAT) can include a housing and a turbine shaft configured to connect to one or more turbine blades and be turned by the one or more blades. The turbine shaft can be disposed in the housing to rotate relative to the housing along a rotational axis. The RAT can include a first bearing and a second bearing mounted between the turbine shaft and the housing to allow the turbine shaft to rotate relative to the housing. The RAT can include a whirl reduction system configured to dampen or eliminate whirl around the rotational axis.