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:
Feb. 11, 2020
Filed:
Feb. 20, 2014
Applicant:
Danfoss A/s, Nordborg, DK;
Inventors:
William Turner Thornton, Winter Haven, FL (US);
Lin Sun, Tallahassee, FL (US);
Assignee:
DANFOSS A/S, , DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 27/02 (2006.01); F04D 27/00 (2006.01); F04D 29/058 (2006.01); F25B 1/053 (2006.01); F04D 17/12 (2006.01); F04D 29/44 (2006.01); F25B 1/10 (2006.01);
U.S. Cl.
CPC ...
F04D 27/0253 (2013.01); F04D 17/12 (2013.01); F04D 27/001 (2013.01); F04D 27/0261 (2013.01); F04D 29/058 (2013.01); F04D 29/444 (2013.01); F25B 1/053 (2013.01); F25B 1/10 (2013.01);
Abstract
This disclosure relates to a control system and method for the centrifugal compressor. The system, for example, includes a controller configured command an adjustment of at least one of (1) a flow regulator and (2) a speed of a shaft in order to provide safe, efficient compressor operation. Centrifugal compressors are used to circulate refrigerant in a chiller via a refrigerant loop. Centrifugal compressors operate efficiently before reaching a condition known as surge.