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. 23, 2018
Filed:
Aug. 19, 2013
Applicant:
Cummins Ltd., Huddersfield, GB;
Inventors:
Prabhu Ramasamy, Huddersfield, GB;
Andrew Day, Huddersfield, GB;
Assignee:
Cummins Ltd., Huddersfield, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/00 (2006.01); F04D 29/10 (2006.01); F01D 25/18 (2006.01); F16C 33/66 (2006.01); F16C 33/76 (2006.01); F16C 19/18 (2006.01);
U.S. Cl.
CPC ...
F04D 29/10 (2013.01); F01D 25/186 (2013.01); F16C 33/6637 (2013.01); F16C 33/76 (2013.01); F05D 2220/40 (2013.01); F16C 19/184 (2013.01); F16C 2360/24 (2013.01);
Abstract
A turbomachine with a rotary shaft supporting a turbine wheel is supported for rotation in a housing. The shaft extends through a bore in the housing and a bearing assembly being disposed in the bore. At least one end of the shaft has a primary seal and a secondary seal. The primary seal comprises a non-contact seal defined by an annular clearance between a first non-rotating seal element and a second seal element that rotates with the shaft. The primary seal is arranged to receive lubricating oil from the bearing assembly. An oil slinging feature is provided between the primary and secondary seals.