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:
Mar. 31, 2026
Filed:
Jul. 18, 2023
Applicant:
Carrier Corporation, Palm Beach Gardens, FL (US);
Inventor:
Suzankumar Danaiah Gongate, Telangana, IN;
Assignee:
CARRIER CORPORATION, Palm Beach Gardens, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 49/02 (2006.01); B60H 1/00 (2006.01);
U.S. Cl.
CPC ...
F25B 49/027 (2013.01); B60H 1/00264 (2013.01); B60H 1/00764 (2013.01); F25B 2500/18 (2013.01); F25B 2600/111 (2013.01); F25B 2700/15 (2013.01);
Abstract
A method for controlling power to a condenser fan of a transport refrigeration unit (TRU) includes disconnecting power to the condenser fan; detecting a fan voltage produced by back emf of the condenser fan; obtaining an input volume flow rate corresponding to airflow over a condenser in response to the fan voltage; comparing the input volume flow rate to a lower limit volume flow rate; disconnecting power to the condenser fan when the input volume flow rate is greater than the lower limit volume flow rate.