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. 13, 2003
Filed:
Apr. 10, 2001
Applicant:
Inventors:
Alan Gustafson, Eden Prairie, MN (US);
Dermott Crombie, Deephaven, MN (US);
Mark Freese, Eagan, MN (US);
Assignee:
Thermo King Corporation, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25D 1/706 ;
U.S. Cl.
CPC ...
F25D 1/706 ;
Abstract
A method and apparatus for controlling evaporator and condenser fans in a refrigeration system. The apparatus is a refrigeration system including a refrigerant circuit defined by a compressor, a condenser, a throttling device, and an evaporator. The apparatus includes an evaporator fan and a condenser fan. The apparatus also includes a controller coupled to the fans. The controller includes a variable frequency drive unit. For the method of the invention, the speed of the fans is controlled by the controller.