Bsh Bosch Und Siemens Hausgeraete Gmbh

Bsh Hausgerate Gmbh

Bsh Bosch Und Siemens Hausgerate Gmbh

Uwe-Jens Krausch

Andreas Stolze

Günter Steffens

Klaus Grunert

Reinhard Heyder

Holger Löffler

Rainer Jurmann

Guido Sattler

Ulrich Nehring

Dietmar Pech

Manfred Schulz

Roberto San Martin Sancho

Werner Nühse

Henrik Volkers

Sebastian Bauer

Frank Höfler

Marcus Simon

Alexander Drebant

Heiko Jahnke

Harald MOSCHÜTZ

Detlef Schaefer

A vented laundry dryer has 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. The heat recovery system has 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. 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 for operating a vented dryer having an additional heater and a heat pump having a relaxation unit, monitoring at least one parameter connected to an activity of the additional heater and changing a relaxation property of the relaxation unit depending on the at least one parameter.

Vented laundry drying having an additional heater and heat exchanger unit

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.

Dryer having a heat pump, method for operating the same, and method for air conditioning a room

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.

Exhaust air dryer with heat exchanger

A method for determining a load in a tumble dryer. Initially, laundry is moved in a laundry drum and the electrical conductivity of the laundry is determined by electrodes residing in the laundry drum. The method is distinguished by the fact that a range of fluctuation of the electrical conductivity is determined and serves as a measure of the load. As a result, the determination of the load can be carried out without an additional outlay for components and circuitry in the case in which a conductivity measurement is already implemented in the tumble dryer. The method is particularly suitable to be carried out by a microcontroller.

Method for determining the load in a tumble dryer

The method detects impermissible operating states in a hot-air clothes dryer with a laundry drum. The temperature in the incoming air flow is detected periodically downstream of an incoming air heater and upstream of the drum. A differential value (difference value or gradient) is formed from two successively detected values. The differential value is compared with a predetermined differential value, and if the newly formed differential value is absolutely greater than the predetermined differential value, then a counting value is incremented by one step. The counting value is compared with a predetermined counting value and, if the current counting value is greater than the predetermined counting value, then the heating of the dryer is turned off and/or an operating state display is activated.

Method for detecting impermissible operating states in a hot-air clothes

A method for detecting impermissible operating states in electronically controlled tumble dryers, in particular the state of motion of a laundry drum. In the method, the electrical conductivity of the laundry is determined by electrodes which touch the laundry, at least from time to time. The method is distinguished by the fact that, during the drying operation, the conductivity is periodically measured. The currently measured conductivity value is compared with at least one previously measured conductivity value and, if changes in conductivity that are determined from the compared values over a multi-period interval corresponds to a preset low range of fluctuation, an indication is given that the laundry drum is stationary.

Method for detecting impermissible operating states in electronically

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Brieselang, Germany

Uwe-Jens Krausch