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:
Dec. 07, 2010
Filed:
Jul. 11, 2007
Abtar Singh, Kennesaw, GA (US);
Thomas J. Mathews, Fayette, ME (US);
Frank C. Brown, Iii, Blacksburg, VA (US);
Ozgur Y. Gurkan, Kennesaw, GA (US);
Abtar Singh, Kennesaw, GA (US);
Thomas J. Mathews, Fayette, ME (US);
Frank C. Brown, III, Blacksburg, VA (US);
Ozgur Y. Gurkan, Kennesaw, GA (US);
Emerson Retail Services, Inc., Kennesaw, GA (US);
Abstract
A controller includes a first input that receives a signal indicating an energy consumption value of a compressor, a second input that receives a signal indicating an energy consumption value of a variable speed condenser fan, a third input that receives a signal indicating an ambient temperature, a fourth input that receives a signal indicating a condenser temperature, an output that provides a control signal to the variable speed condenser fan, a memory that stores a temperature difference set-point, and a processor in communication with the inputs, the output and the memory. The processor calculates a difference between the ambient temperature and the condenser temperature, compares the difference with the temperature difference set-point, controls the variable speed condenser fan based on the comparison, monitors the energy consumption values, and modulates the temperature difference set-point to minimize energy consumption.