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:
Apr. 21, 2025
Filed:
Dec. 08, 2020
Applicant:
Danfoss A/s, Nordborg, DK;
Inventors:
Mihai B. Dobrica, Albigny-sur-Saone, FR;
Tianlei Li, Tallahassee, FL (US);
Assignee:
DANFOSS A/S, Nordborg, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/44 (2005.12); F25B 31/00 (2005.12);
U.S. Cl.
CPC ...
F16J 15/441 (2012.12); F25B 31/00 (2012.12);
Abstract
A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a floating ring seal having a nose configured to contact a housing. Further, a low friction coating including carbon nanotubes (CNTs) is applied to one or both of the nose and the housing. In another aspect of this disclosure, the floating ring seal has first and second noses configured to contact the housing, and the first nose is radially spaced-apart from the second nose.