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:
May. 21, 2024
Filed:
Nov. 28, 2022
Applicant:
Danfoss A/s, Nordborg, DK;
Inventors:
Jin Yan, Tallahassee, FL (US);
Tadeu Mendonca Fagundes, Tallahassee, FL (US);
Ryan Dingman, Boca Raton, FL (US);
Assignee:
Danfoss A/S, Nordborg, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/28 (2006.01);
U.S. Cl.
CPC ...
F04D 29/284 (2013.01); F05D 2240/303 (2013.01); F05D 2240/304 (2013.01);
Abstract
This disclosure relates to a refrigerant compressor including an impeller. The impeller has a blade with a wavy contour. The wavy contour reduces flow separation relative to smooth, non-wavy blades. In particular, the disclosed wavy contour creates smaller trailing edge vortexes adjacent the blades. In turn, the wavy contour of the blades improves overall compressor efficiency.