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:
Nov. 19, 2024
Filed:
May. 16, 2023
Applicant:
Danfoss A/s, Nordborg, DK;
Inventors:
James Wilson, Alpharetta, GA (US);
Jin Yan, Tallahassee, FL (US);
Lin Xiang Sun, Tallahassee, FL (US);
Ruiguo Gao, Tallahassee, FL (US);
Brenden Richman, Tallahassee, FL (US);
Assignee:
Danfoss A/S, Nordborg, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/02 (2006.01); F04D 17/10 (2006.01); F04D 29/16 (2006.01); F01D 5/18 (2006.01); F01D 5/28 (2006.01); F04D 29/10 (2006.01); F16J 15/447 (2006.01);
U.S. Cl.
CPC ...
F04D 29/162 (2013.01); F04D 17/10 (2013.01); F01D 5/186 (2013.01); F01D 5/189 (2013.01); F01D 5/28 (2013.01); F01D 11/02 (2013.01); F04D 29/102 (2013.01); F05D 2240/55 (2013.01); F16J 15/4472 (2013.01);
Abstract
In some aspects, the techniques described herein relate to a refrigerant compressor, including: a stator; a rotor configured to rotate with respect to the stator; and at least one step seal between the rotor and the stator, wherein the step seal includes a first tooth and a second tooth extending from the rotor toward the stator, wherein a downstream surface of the first tooth and an upstream surface of the second tooth are arranged at an angle relative to one another, wherein the angle is less than 90°.