Electrolux Home Products Corporation N.v.

Electrolux Appliances Aktiebolag

Electronics Home Products Corporation N.v.

Roberto Ragogna

Nicola Reid

Fabio Altinier

Elena Pesavento

Paolo Driussi

Francesco Cavarretta

Flavio Noviello

Alessandro Vian

Michele Bisaro

Fabio Pasut

Gennaro Napolitano

Lorenzo Corso

Christian Montebello

Giancarlo Gerolin

Mirko Cenedese

Alessandro Ricci

Davide Sillo

Marco Del Puppo

Mattia Sessolo

Maura Pasquotti

Stefano Zandona′

Christian Zavan

Fabio Garzena

Alberto Quaroni

Alessandro Dalla Rosa

Stefano Antonello

Andrea Giovannetti

Ornella Brandolisio

Stefano Zandona'

Matteo Del Puppo

Fabio Altiner

Luca Furlan

A method to control operation of a laundry dryer. The method includes starting a drying cycle, and receiving a user input command through one of a first interface and a second interface. If the command is provided through the first interface, a first working routine is started. If the same command is provided through the second interface, a second working routine is started. The second routing is different in at least one operational parameter than the first working routine. A laundry dryer configured to perform the method is also provided.

Method to control operation of a laundry dryer

A heat pump laundry dryer or a heat pump washing machine having a drying function, includes a control unit controlling an operation of the laundry treatment apparatus. A laundry treatment chamber treats laundry using process air circulated in a process air circuit. A heat pump system has a refrigerant loop in which refrigerant fluid is circulated through a first and a second heat exchanger. A compressor circulates the refrigerant fluid through the refrigerant loop, and a cooling fan unit cools the compressor. During the operation, a conveyance capacity of the cooling fan unit is varied. A detector unit detects an operation parameter indicating a state of at least one electronic board. A method of operation includes operating the cooling fan unit based upon the electronic board operation parameter, and controlling the compressor operation output based upon the electronic board operation parameter, wherein the compressor is a variable speed compressor.

Heat pump laundry treatment apparatus and method of operating a heat pump laundry treatment apparatus

A method is provided for operating a heat pump laundry dryer or a heat pump washing machine having drying function. The laundry dryer or washing machine includes: a control unit controlling the operation of the laundry dryer or washing machine, a laundry treatment chamber for treating laundry using process air, a process air circuit for circulating the process air, a heat pump system having a refrigerant loop, in which the refrigerant fluid is circulated through a first and a second heat exchanger, a compressor for circulating the refrigerant fluid through the refrigerant loop, and a cooling fan unit () for cooling the compressor. The method includes: modifying or changing an operation parameter set of the cooling fan unit () in dependency of at least one of the following input variables: a user selectable input variable, a working parameter of the laundry drum, a working parameter of a process air fan, a working parameter set meter of an electric driving motor, a working parameter of the compressor, a drying progress status parameter or a status parameter of the laundry to be dried, and an environment parameter of the treatment apparatus environment.

Method of operating a heat pump laundry dryer and heat pump laundry dryer or heat pump washing machine having drying function

A laundry dryer () has a laundry drum () which is designed to rotate about an longitudinal axis (). An air recirculating conduit () is connected to the laundry drum (). A heater device () is located along air recirculating conduit () to heat the airflow. A rotatable fan () is located along air recirculating conduit () to produce an airflow flowing through drum (). The fan () is designed to be rotated in a main and secondary direction of rotation for providing different air flow rates. An electric motor () is mechanically connected with the fan () and the drum () for rotating the fan () and drum (), simultaneously. The home laundry dryer () further has electric control means () configured to control the electric motor () so as to cause: the drum () to rotate at a first rotational speed (v) in a forward direction of rotation, thereby resulting in the fan () being rotated in the main direction of rotation for providing a first air flow rate; or the drum () to rotate at a second rotational speed (v) greater than said first rotational speed (v) in a reverse direction of rotation, thereby resulting in the fan () being rotated in the secondary direction of rotation for providing a second air flow rate lower than the first air flow rate.

Rotatable-drum laundry drier and method of controlling a rotatable-drum laundry drier to dry delicate laundry

A method of controlling a rotatable-drum laundry drier to dry delicate laundry in a drum of the rotatable-drum laundry drier. The method includes the steps of feeding drying air into the drum; rotating the drum at a variable rotation speed about an axis of rotation; rotating the drum at a first rotation speed higher than, or equal to a rotation speed, at which centrifugal acceleration of the inner surface of the drum equals gravitational acceleration; making interruptions in rotation of the drum at the first rotation speed; and performing, at each interruption, one or more rotation cycles at a second rotation speed, so that, at each cycle, at least part of the laundry slides/tumbles slowly inside the drum while remaining in contact with the inner surface of the drum and/or another part of the laundry contacting the drum.

A method of operating a laundry treatment apparatus, in particular a washing machine, a laundry dryer, a heat pump laundry dryer or a washing machine having a drying function, is provided. The apparatus includes a control unit controlling the operation of the treatment apparatus, a laundry treatment chamber for treating laundry, a detector unit for detecting at least one operation parameter (T_inv) of the treatment apparatus, and a first variable speed motor unit adapted at least to drive the treatment chamber, and/or a compressor having a second variable speed motor unit for circulating a refrigerant fluid through a refrigerant loop of the laundry treatment apparatus. The method includes selecting a predetermined power supply modulation mode for operating at least one of the first and second motor unit in dependency of the at least one detected operation parameter (T_inv), and operating at least one of the first and second motor units in an operating cycle by applying or executing the selected predetermined power supply modulation mode.

Method of operating a variable speed motor in a laundry treatment apparatus

Method for operating a laundry treatment machine comprising an outer casing () provided with a door (), a drum () mounted inside the outer casing, a drum lighting device () arranged inside the outer casing and operable to light the drum, and a control unit () adapted to control the lighting device; the method comprises: &#x2014;switching-on drum lighting device if the control unit detects a preset action performed by a user on the laundry treatment machine and/or a preset state of the laundry treatment machine and/or of the drum lighting device; &#x2014;switching-off drum lighting device if the control unit detects a preset action performed by a user on the laundry treatment machine and/or a preset state of the laundry treatment machine and/or of the drum lighting device. There is a delay between the detection by the control unit of the preset action performed by a user on the laundry treatment machine and/or a preset state of the laundry treatment machine and/or of the drum lighting device, and the switching-off of the drum lighting device.

Method for operating a drum lighting device in a laundry treatment machine and laundry treatment machine implementing the method

A method for controlling a rotatable-drum laundry drier to dry laundry in a drum is provided. The control method includes the steps of memorizing, in a memory device of the laundry drier, a comparison threshold variable in time according to a predetermined profile, and, at predetermined drying times in the laundry drying cycle, measuring an electric quantity indicating the moisture in the laundry at the drying time; comparing, at each drying time, the measured electric quantity with the memorized comparison threshold corresponding to the drying time; and determining the end of drying cycle time on the basis of this comparison.

Rotatable-drum laundry drier and method of controlling a rotatable-drum laundry drier

A home laundry drier () having a revolving drum () for housing the laundry to be dried, a hot-air generator () for circulating a stream of hot air inside the drum (), and a steam generator () for feeding steam into the drum (); the steam generator () having an electric boiler () designed to receive a given quantity of water and immediately convert it into a stream of low-pressure steam to be fed into the drum (), a demineralized-water reservoir () located over and communicating with the electric boiler (), and a lint filter () located upstream from the water reservoir (); the water reservoir () receiving distilled water from the water canister () of the heat exchanger () of the hot-air generator () via a water drain circuit (); and the laundry drier () also having a liquid level sensor () for determining when the water in the water reservoir () is below a given minimum level, and a central control unit () for determining whether the water reservoir () is in a given low-water-level condition at both the start and end of a user-selected drying cycle not including activation of the steam generator ().

Determining clog steam generator tank filter laundry drier, and apparatus

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Malnisio, Italy

Roberto Ragogna