EP 2588819 B1 20191211 - EVAPORATOR REFRIGERANT SATURATION DEMAND DEFROST
Title (en)
EVAPORATOR REFRIGERANT SATURATION DEMAND DEFROST
Title (de)
ABTAUVORGANG BEI BEDARF NACH KÜHLMITTELSÄTTIGUNG BEI EINEM VERDUNSTER
Title (fr)
DÉGIVRAGE À LA DEMANDE À SATURATION DE RÉFRIGÉRANT D'ÉVAPORATEUR
Publication
Application
Priority
- US 36065110 P 20100701
- US 2011042311 W 20110629
Abstract (en)
[origin: WO2012003202A2] A method is disclosed for controlling initiation of a defrost cycle of an evaporator heat exchanger of a refrigeration system operatively associated with a refrigerated transport cargo box. The method includes the steps of establishing an return air-saturation temperature differential equal to the difference of a sensed air temperature of an air flow returning from the cargo box to pass over the heat exchange surface of the evaporator heat exchanger minus a refrigerant saturation temperature of a flow of refrigerant passing through the evaporator heat exchanger, comparing the return air-saturation temperature differential to a set point threshold defrost temperature differential, and if the return air-saturation temperature differential exceeds the set point threshold defrost temperature differential, initiating a defrost cycle for defrosting the evaporator heat exchanger.
IPC 8 full level
F25D 21/00 (2006.01)
CPC (source: EP US)
F25B 47/02 (2013.01 - US); F25D 21/006 (2013.01 - EP US); F25B 2700/2117 (2013.01 - EP US); F25B 2700/21172 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012003202 A2 20120105; WO 2012003202 A3 20120816; CN 103069230 A 20130424; CN 103069230 B 20170804; EP 2588819 A2 20130508; EP 2588819 B1 20191211; ES 2762238 T3 20200522; US 2013086929 A1 20130411
DOCDB simple family (application)
US 2011042311 W 20110629; CN 201180042426 A 20110629; EP 11730522 A 20110629; ES 11730522 T 20110629; US 201113704314 A 20110629