Title:
MICROPROCESSOR CONTROLLED DEFROST TERMINATION
Document Type and Number:
WIPO Patent Application WO/2010/107536
Kind Code:
A3
Abstract:
An apparatus and method are disclosed for terminating a refrigeration unit's defrost function. The refrigeration unit comprises an evaporator, a temperature sensor to measure the temperature of the evaporator during a defrost function, and a controller configured to calculate the rate of temperature change and terminate the defrost function when the rate meets a specified criteria, such as a predetermined rate or a sharp increase in the rate after the evaporator temperature has increased above the freezing point of water.
Inventors:
FULMER SCOTT (US)
PERKOVICH MARK (US)
HOTALING DONALD (US)
PERKOVICH MARK (US)
HOTALING DONALD (US)
Application Number:
PCT/US2010/024058
Publication Date:
November 11, 2010
Filing Date:
February 12, 2010
Export Citation:
Assignee:
CARRIER CORP (US)
FULMER SCOTT (US)
PERKOVICH MARK (US)
HOTALING DONALD (US)
FULMER SCOTT (US)
PERKOVICH MARK (US)
HOTALING DONALD (US)
International Classes:
F25B49/02; F25B47/02; F25D21/06; F25D29/00
Foreign References:
| JP3103275B2 | 2000-10-30 | |||
| US6012294A | 2000-01-11 | |||
| JP4167083B2 | 2008-10-15 |
Other References:
See also references of EP 2409095A4
Attorney, Agent or Firm:
COVIELLO, Garth, E. (Suite 300Syracuse, New York, US)
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