Patent application number | Description | Published |
20090025557 | Domestic Appliance Comprising an Adsorption Unit and Method for Operating a Domestic Appliance of This Type - A domestic appliance including an adsorption unit and further including a process air conduit, wherein an adsorption container operates as a heat exchanger for heating a stream of air flowing in the process air conduit and being applied to the adsorption container, with the adsorption unit configured for alternate and reversible operation in a first operating state in which a stream of air flowing in the process air conduit is applied to the adsorption container and which adsorbs adsorptive evaporating in the phase transition container, and in a second operating state in which the adsorbing agent is heated by the heater and the adsorptive is desorbed, with desorbed adsorptive condensing in the phase transition container, the domestic appliance including an assembly operatively associated with the adsorption unit for applying a stream of air flowing in the process air conduit to the adsorption container in the second operating state. | 01-29-2009 |
20090031734 | CIRCUIT ARRANGEMENT FOR A PELTIER MODULE - A circuit arrangement for a Peltier module for use in a Peltier heat pump for a tumble dryer with the circuit arrangement including a Peltier module having at least one series arrangement of Peltier elements, with each series arrangement of Peltier elements being configured to receive voltage; and a two-position transfer switch wherein at a first position voltage is applied to the Peltier module and at a second position voltage is not applied to the Peltier module and the Peltier module is connected to another electrical device. | 02-05-2009 |
20090049843 | Domestic Appliance Comprising a Thermoelectric Heat Pump - A domestic appliance, which may be a tumble dryer, includes a thermoelectric heat pump; at least one series of Peltier elements operationally associated with the heat pump and driven by a supply voltage for producing heat during appliance operation wherein the resistance of the Peltier elements increases with increasing temperature and wherein a threshold temperature for the Peltier elements is defined; and a heat flow path for dissipating heat produced by the Peltier elements wherein at a maximum temperature of the Peltier elements above a normal operating temperature and below the threshold temperature the power of the heat dissipated through the heat flow path is substantially equal to the electrical power drawn by the Peltier elements from the supply voltage. | 02-26-2009 |
20090049844 | Circuit Arrangement for a Peltier Module - A circuit arrangement for a Peltier module for use in a Peltier heat pump for a tumble dryer with the circuit arrangement including a Peltier module having at least one series arrangement of Peltier elements actuable by a DC voltage. Also included is a rectifier operatively associated with a power supply and at least one series arrangement of Peltier elements for producing a rectified DC voltage for use by said Peltier elements. The number of Peltier elements and the manufacturer type of Peltier elements are selected in a manner wherein the Peltier elements of the series arrangement are operated by actuating the series arrangement with the rectified power supply at an operating voltage that is suitable for the use of the Peltier module in a Peltier heat pump. | 02-26-2009 |
20090094990 | Heat Pump System, in Particular for a Household Appliance - A heat pump system including a heat pump having at least two Peltier elements arranged in series and connected to an energy supply, the heat pump system comprising an electrical dropping resistor arranged in series with the Peltier elements, wherein the Peltier elements and the dropping resistor are jointly supplied with energy by the energy supply. The heat pump system is preferably used in a household appliance, in particular a tumble drier. | 04-16-2009 |
20090113740 | Dryer with heat pump - A dryer with a drying chamber that includes a process air duct for guiding process air through the drying chamber, a heat pump with a heat sink in the process air duct and through which air can flow in an outlet air direction for cooling down the process air, and a heat source arranged in the process air duct and through which air can flow in an inlet air direction for heating up the process air. The outlet air direction and the inlet air direction are substantially parallel to one another. The heat sink and the heat source are in a plane substantially perpendicular to the outlet air direction and to the inlet air direction alongside one another. | 05-07-2009 |
20090113747 | Washing Household Device, in Particular a Clothes Dryer - The invention relates to a washing household device, in particular to a clothes dryer, that includes an air-supply device which is arranged on a rear side area thereof and is provided with a closed self-contained cross-section flow channel. | 05-07-2009 |
20090119943 | Vented dryer with heat recovery and condensate pan and method for operation thereof - The invention relates to a vented dryer having a drying chamber for items to be dried, a supply air duct for supply air, in which is situated a heater for heating the supply air and the heated supply air (process air) can be directed by means of a first fan over the items to be dried, an exhaust air duct, a motor for driving the drying chamber, a first heat exchanger in the exhaust air duct and a condensate pan arranged beneath the first heat exchanger, whereby the vented dryer has first means for the discharge of warm air from a housing interior surrounding the motor toward the condensate pan and away across the latter. The invention also relates to a method for the operation of this vented dryer. | 05-14-2009 |
20090139107 | Exhaust air dryer with a heat pump and a first fan - The invention relates to an exhaust air dryer with a drying compartment for objects to be dried, a supply air duct upstream of the drying compartment, a first fan for the supply of process air from a supply air inlet to the drying compartment and to an exhaust air outlet, an exhaust air duct between the drying compartment and the exhaust air outlet and a heat pump, with a heat sink in the exhaust air duct and a heat source in the supply air duct, characterized in that the first fan in the supply air duct is arranged between the supply air inlet and the heat source and a second fan in the supply air duct is arranged between the heat source and the drying compartment. | 06-04-2009 |
20090165328 | Dryer, set up for operation drawing of electric power, and method for operating it - The invention relates to a dryer having a drying chamber, a process air channel in which is located a heater for heating the process air and wherein the heated process air can be ducted into the drying chamber by means of a blower, a motor and a controller, which dryer is set up for operation drawing an electric power that never exceeds a pre-specified value P | 07-02-2009 |
20090293301 | Device and Method for Drying Laundry - A device and a method for drying laundry includes an essentially closed channel system for conveying a stream of air that acts on the laundry are a treatment chamber for loading the laundry, a blower to drive the airflow, a heater to heat the airstream before it strikes the laundry, and a cooler to cool the airstream after it strikes the laundry. The airstream flows through a heat pump in the channel system, encompassing a pump unit, a cold branch, and a warm branch, that are joined to each other in parallel and through which the appropriate parts of the airstream can flow in parallel. | 12-03-2009 |
20090300941 | HOUSEHOLD APPLIANCE AND METHOD FOR DRYING A DAMP ITEM - A household appliance and a method for drying a damp item via an air current are provided. An air current is conducted in a substantially enclosed dry air channel and is driven by a fan. The air current can flow through a treatment chamber with the item, a cooling arrangement for cooling the air current and removing moisture from the air current by condensation after it has flown through the treatment chamber, and a heating arrangement for heating the air current before it flows through the treatment chamber. The cooling arrangement has a first heat exchanger, via which heat from the air current is fed to a process gas that is conducted in a regenerative gas circulation process, and the heating arrangement has a second heat exchanger, via which heat from the process gas is fed to the air current. | 12-10-2009 |
20090320319 | Domestic Device For The Care of Laundry Items and Method for Passing Cooling Air Into Such a Device - A domestic appliance for the care of laundry items is provided a housing, a container housed by the housing and operable to accommodate laundry items, a process air loop, a heat exchanger operable to dehumidify process air exiting the container, a heater operable to heat process air, and a cooling air loop for conveying cooling air from an ambient environment of the domestic appliance into contact with the heat exchanger to thereby cool the heat exchanger, the cooling air loop including an air channeling device that is operable to selectively: a) directly vent at least some of the cooling air fed to the heat exchanger from the domestic appliance to the ambient environment and b) channel at least some of the cooling air fed to the heat exchanger into the domestic appliance for passage thereafter out of openings in the domestic appliance to the ambient environment. | 12-31-2009 |
20100011608 | EXHAUST AIR DRYER WITH HEAT EXCHANGER - An exhaust air dryer with a drying chamber for items to be dried. The dryer includes a process air fan, a heat exchanger which includes a heat source, a heat sink of a heat pump, and a flushing device for flushing of a first inflow surface of the heat source and a second inflow surface of the heat sink with a liquid which is assigned to the heat source and the heat sink for removing of soil; and air ducts interconnecting the drying chamber, the process air fan, and the heat exchanger for conducting process air. | 01-21-2010 |
20100071226 | METHOD FOR THE OPERATION OF A HOUSEHOLD APPLIANCE USED FOR TAKING CARE OF LAUNDRY - A method for operating a household appliance used for taking care of laundry. In the method, a Peltier heat pump of the household appliance is activated and is supplied with electric power for drying the laundry. The power supplied to the Peltier heat pump is varied during the drying process in accordance with a reached process phase of the drying process. | 03-25-2010 |
20100083527 | CONDENSATION DRYER COMPRISING A HEAT PUMP AND METHOD FOR OPERATING THE SAME - A condensation dryer is provided that includes a drying chamber for articles to be dried and a process air circuit in which a heater for heating the process air is located. The heated process air can be guided across the articles to be dried along a circulation route that includes a blower, an air/air heat exchanger, and a heat pump circuit having an evaporator, a compressor and a condenser. An additional heat exchanger is arranged in the heat pump circuit between the condenser and the evaporator, the additional heat exchanger being functionally coupled to the air/air heat exchanger. | 04-08-2010 |
20100132216 | DRYER WITH A HEAT PUMP AND AN ELECTRICAL HEATING ELEMENT AND ALSO A METHOD FOR ITS OPERATION - The invention relates to a dryer with a drying chamber for the items to be dried, a process air duct, a fan in the process air duct, a heat pump with a heat sink and a heat source thermally coupled to the process air duct, and also an electrical heating element. The electrical heating element is arranged in the direct vicinity of the heat source, with a first distance between the electrical heating element and the heat source being smaller than a second distance between the electrical heating element and an entry for the process air into the drying chamber. The invention also relates to a method for operating this dryer. | 06-03-2010 |
20100154248 | DRYER WITH HEAT PUMP AND RECIRCULATION COMPONENT AND ALSO METHOD FOR ITS OPERATION - A dryer includes a drying chamber for the items to be dried, an inlet air duct, a process air duct, an exhaust air duct, a recirculating air duct, a fan, and a heat pump with an evaporator, a condenser and a programmable controller. The dryer defines a process air path for obtaining and maintaining a predetermined minimum difference ΔT | 06-24-2010 |
20100186251 | ADSORPTION DRYER - A dryer device having a receiving chamber for receiving textiles and drying agents including a vacuum pump for creating a vacuum in the receiving chamber. A drying method includes introducing textiles and drying agents, particularly based on zeolite, into the receiving chamber, followed by a vacuum being created in the receiving chamber. | 07-29-2010 |
20100212176 | Tumble Dryer With Peltier Heat Pump - A tumble dryer including a heat pump that includes a Peltier module having a plurality of Peltier elements operationally associated therewith and wherein the Peltier module has a cold side and a warm side; at least two air-directing ducts including a first duct in fluid communication with the Peltier module cool side through which cooling air is directed for cooling and dehumidifying; and a second duct in fluid communication with the Peltier module warm side through which dried air is directed for reheating; and an air and water vapor permeable filter disposed in the second duct facing the Peltier elements. Moisture which arises on the Peltier elements can thereby escape into the duct. | 08-26-2010 |
20100243002 | METHOD AND DEVICE FOR CLEANING A COMPONENT, PARTICULARLY AN EVAPORATOR OF A CONDENSING DEVICE, AND WASHING OR LAUNDRY DRYER HAVING SUCH A DEVICE - A home appliance includes an evaporator of a condenser in a process air circuit, a condensate water pan that collects water condensed by the evaporator from drying of process air, a collector tank above the evaporator having one of a rinsing tank and a rinsing chamber with a storage chamber as an overflow region, and an abruptly openable outlet, and a downpipe connected to the abruptly openable outlet to permit discharge of condensate water in the collector tank in a surge to the evaporator. | 09-30-2010 |
20100257748 | LAUNDRY DRYING DEVICE HAVING A HEAT PUMP - A laundry drying device, including a front wall; a seal connected to the front wall; a rear wall; a tub located between the front wall and the rear wall; a rotatable laundry drum arranged in the tub, the rotatable laundry drum being accessible by way of the seal; and a heat pump. The heat pump includes an evaporator that is arranged at least partially between the laundry drum and the rear wall; and a condenser that is arranged at least partially above the laundry drum. | 10-14-2010 |
20100263225 | HOUSEHOLD APPLIANCE COMPRISING A FIRST AIR CONDUIT AND A HEAT PUMP - A household appliance including a housing; a drying chamber to dry wet articles in the drying chamber; and a first air conduit to guide process air drawn into the housing to dry the wet articles. The household appliance also has a heat pump that includes a heat sink to transfer heat into the heat pump; a heat source coupled to the first air conduit to transfer the heat from the heat pump into the process air; and a heat transfer device to transfer the heat from the heat sink to the heat source. A second air conduit is coupled to the heat sink to guide secondary air drawn into the housing. The heat sink transfers the heat from the secondary air into the heat pump. | 10-21-2010 |
20110005096 | DRYER WITH HEAT RECOVERY AND METHOD OF OPERATION THEREOF - A dryer is provided having a drying chamber for items to be dried and a process air duct in which are located a heater for heating the process air, a blower for driving the process air from the heater through the drying chamber, and a heat exchanger arrangement. Via the heat exchanger arrangement, heat can be withdrawn from the process air flowing away from the drying chamber, and the process air flowing toward the heater can be fed to the heat exchanger. The process air duct is divided into a main duct and a secondary duct, the secondary duct having an evaporator in which condensate that was separated from the process air in the heat exchanger arrangement can be evaporated into the process air flowing therethrough and is connected to the exhaust opening. | 01-13-2011 |
20110016889 | HEATING APPARATUS HAVING AT LEAST TWO THERMOELECTRIC MODULES WHICH ARE CONNECTED IN SERIES - A heating apparatus including at least two thermoelectric modules connected in series, and at least one switching arrangement connected in parallel with one of the at least two thermoelectric modules such that electrical current flows via the at least one switching arrangement in an event of a failure of the one of the at least two thermoelectric modules. | 01-27-2011 |
20110030238 | VENTED DRYER HAVING REDUCED CONDENSATION FORMATION AND METHOD FOR OPERATING THE SAME - A vented dryer having a drum to dry damp laundry by warm process air; a first process air channel upstream of the drum; a heater to heat the process air in the first process air channel; a supply air channel opening into the first process air channel; a second process air channel downstream of the drum; an outlet air channel originating from the second process air channel; a first blower in the first process air channel; and an auxiliary air channel through which auxiliary air is supplied from the environment of the vented dryer. The auxiliary air channel opens into the outlet air channel. | 02-10-2011 |
20110041355 | DOMESTIC APPLIANCE FOR DRYING A HUMID PRODUCT, COMPRISING A COOLING ASSEMBLY AND A HEATING ASSEMBLY - A domestic appliance for drying a damp product by means of a process air stream that is conducted in a process air channel. The appliance has a treatment chamber that includes the damp product. A cooling assembly cools and condenses the process air stream after it flows through the treatment chamber. A first heat exchanger supplies heat from the process air stream to a working fluid. A heating assembly heats the process air stream before it flows through the treatment chamber and a second heat exchanger supplies heat from the working fluid to the process air stream. The working fluid is conducted in a heat pump that has at least two displacement pistons. The heat pump operates according to a regenerative gas cycle process. At least one of the heat exchangers is substantially asymmetrically and laterally arranged with respect to at least one of the displacement pistons. | 02-24-2011 |
20110047813 | DOMESTIC APPLIANCE FOR DRYING A HUMID PRODUCT, COMPRISING A COOLING ASSEMBLY AND A HEATING ASSEMBLY - A domestic appliance for drying a damp product by means of a process air stream that is conducted in a process air channel. The appliance has a treatment chamber that includes the damp product. A cooling assembly cools and condenses the process air stream after it flows through the treatment chamber. A first heat exchanger supplies heat from the process air stream to a working fluid. A heating assembly heats the process air stream before it flows through the treatment chamber and a second heat exchanger supplies heat from the working fluid to the process air stream. The working fluid is conducted in a heat pump that has at least two mechanically coupled displacement pistons. The heat pump operates according to a regenerative gas cycle process that includes a Vuilleumier gas cycle process. | 03-03-2011 |
20110198405 | DRYER HAVING A HEAT PUMP, METHOD FOR OPERATING THE SAME, AND METHOD FOR AIR CONDITIONING A ROOM - A dryer is provided that includes a drying chamber for items to be dried; a supply air duct; a process air duct; an exhaust air duct; and a heat pump having a heat sink and a heat source, wherein the supply air duct and the exhaust air duct can be connected to each other through a recirculating air duct by means of a mechanism in order to adjust a proportion of recirculating and exhaust air in the dryer, and wherein the dryer has a first sensor for determining a process air temperature. A method for operating the dryer and a method for controlling the temperature and/or the humidity of the air of a room using the dryer are also provided. | 08-18-2011 |
20110209484 | CONDENSER DRYER HAVING A HEAT PUMP, AND METHOD FOR OPERATING THE SAME - A condenser dryer includes a drying chamber for items to be dried; a process-air circuit including a fan; and a heat pump in which a refrigerant circulates. The heat pump has an evaporator and a condenser, with the evaporator or the condenser or both being a heat exchanger having level surfaces and including at least one endlessly folded, flattened tube to form a plurality of rows of meander stacks in laterally offset relationship. | 09-01-2011 |
20120144691 | METHOD FOR OPERATING AN ADSORPTION DRYER AND DRYER FOR IMPLEMENTING THE METHOD - In a method for operating an adsorption dryer, a process air flow, generated by at least one blower, is routed at least at times through an adsorption apparatus and over a textile goods in care during a textile care process in a “dry” operating mode to thereby charge a reversibly dehydratable adsorbent of the adsorption apparatus with moisture. A charge state of the adsorbent with water is detected and is displayed at least after the end of the “drying” textile care process. The absorbent is desorbed at least in part during a subsequent, selected and started textile care process in a “refresh” operating mode, and the desorbed moisture is routed as a moist process air flow into a receptacle for refreshing textile goods which are stored or hung in a stationary manner. | 06-14-2012 |
20140165420 | VENTED LAUNDRY DRYING HAVING AN ADDITIONAL HEATER AND HEAT EXCHANGER UNIT - The invention relates to a vented laundry dryer, comprising an air inlet duct, an air outlet duct, a heat recovery system for transferring heat from the air outlet duct to the air inlet duct, and an additional heater, wherein the heat recovery system is a heat pump comprising an evaporator, a liquefier, a condenser, and a relaxation unit, wherein the liquefier is thermally coupled to the air inlet duct, and the evaporator is thermally coupled to the air outlet duct, and a relaxation property of the relaxation unit can be adjusted depending on at least one parameter that is connected to an activity of the additional heater. A method is used to operate a vented heat dryer comprising an additional heater and a heat pump having a relaxation unit, wherein the method comprises the following steps: (a) monitoring at least one parameter that is connected to an activity of the additional heater; and (b) changing a relaxation property of the relaxation unit depending on the at least one parameter. | 06-19-2014 |
20150013178 | HOUSEHOLD APPLIANCE, MORE PARTICULARLY A TUMBLE DRYER, COMPRISING A LATENT HEAT STORE, AND METHOD FOR THE OPERATION THEREOF - The invention relates to a household appliance, more particularly a tumble dryer, comprising a working chamber and at least one latent heat store having a respective storage medium, wherein the respective storage medium is thermally coupled via a respective associated heat exchanger to a working medium circulating through the working chamber, wherein the working medium first moves from the working chamber to a heat sink, from said heat sink to the heat exchanger, from said heat exchanger to a heat source, and from said heat source back to the working chamber, and wherein the respective storage medium forms a substance mixture together with a respective carrier fluid, wherein said substance mixture can be conducted in a respective closed circuit through the associated heat exchanger for an exchange of heat with the working medium. The respective substance mixture circulates between the associated heat exchanger and at least one reservoir in the respective closed circuit, and the reservoir can be refilled layer-by-layer with the substance mixture conducted through the respective associated heat exchanger. The invention further relates to a method for operating such a household appliance. | 01-15-2015 |