Whirlpool Corporation

Paolo Sicher

Raffaele Paganini

Davide Guatta

Alessandro Boer

Francesco Del Bello

Stefano Tavolazzi

Rocco Petrigliano

Matteo Parnisari

Roberto Malnati

Luigi Sessa

Silvano Monti

Alessandra Suardi

Paolo Toniolo

Mariagrazia Dauria

Daniele Ragazzon

Salvatore De Caprio

Valerio Bresolin

Luca Alioli

Serkan Gemici

Nicholas Righetti

Mariagrazia D'Auria

Matteo Luciano Vanelli

A method for controlling evaporator defrost in a refrigeration appliance having a cooling circuit with a variable cooling capacity compressor is disclosed. The method includes assessing the cooling capacity of the cooling circuit and calculating the defrost time on the basis of such cooling capacity. Defrost time is preferably assessed on the basis of the inverter frequency driving the compressor and/or the percentage of insertion of the compressor.

Method for controlling the defrost of an evaporator in a refrigeration appliance

A method of controlling the temperature inside a cavity of a cooling appliance provided with a temperature sensor inside the cavity and with an actuator for adjusting the cooling capacity of the appliance, the food temperature is estimated on the basis of a value from the temperature sensor and on a predetermined function of a status of the actuator.

Method for estimating the food temperature inside a refrigerator cavity and refrigerator using such method

A device for rapidly defrosting a refrigerator compartment, such as a freezer compartment or the like, said compartment comprising a plurality of adjacent walls, in correspondence with at least one of said walls there being arranged a hairpin coil evaporator for a static refrigerator, or a part of an evaporator of forced-air type, within a refrigeration circuit comprising a motor-compressor unit, said device comprising heating means arranged in correspondence with at least one of said walls and/or with the evaporator, said heating means being electrically powered via an electrical supply circuit associated with the refrigerator; the heating means are at least one resistance element of PTF (polymer thin/thick film) type.

Device for defrosting evaporator in a refrigerator compartment

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Cassinetta, Italy

Paolo Sicher