CH635632A5 - Apparatus for the washing and optional drying of laundry - Google Patents

Description

The invention relates to a device for washing and drying laundry with a power-driven drum, which has an opening on one end face, and with a fan arranged outside the drum, together with an associated heating element, for blowing warm air through the drum.

In a known drum washing machine designed for washing and drying, the heating devices are attached on the washing drum shell side, as a result of which a substantial part of the radiation is shielded by the drum shell and cannot get into the drum interior. In this device, the radiation is used primarily to heat the outer wall of the drum.

In another known drum washing machine with a drying device of this type, warm air is blown into the washing drum only by means of a hot air blower, which is arranged away from the front drum opening, via a line system and an outflow opening.

Other devices of the type mentioned at the outset have radiators which are attached near the front drum opening, but radiation of the radiators into the interior of the drum is - if at all - only possible to a small fraction because the radiators are provided with stems which provide radiation prevent or at least due to the conical taper of these stems, direct radiation into the drum is severely restricted.

All these known devices have in common that their radiators are not intended for direct irradiation into the interior of the drum, but that they are only used to heat the drum shell wall in the case of the first-mentioned device or to heat the air passed by them by means of a blower in the other devices.

In contrast, the invention has for its object to provide a device of the type mentioned, in which the heating elements designed as heat radiators radiate directly into the interior of the drum and at the same time the washing liquid carried past them during the washing process or the drying air carried past them during the drying process heat, the moist air leaving the drum being dried on cooling surfaces and the dry air either being blown out of the device or re-introduced into the drum in a circuit via the heat radiators.

The object is achieved according to the characterizing part of claim 1.

In a device equipped in this way, the heat transfer is not limited to heat conduction and heat convection alone, but the heat radiation represents a significant acceleration factor in both the washing and drying processes, since the heat rays affect the entire inside of the drum and are achieved by their depth effect on the one hand, the soiling of the inner fabric layers of the laundry dissolves more quickly during the washing process and is thus better washed out with the washing liquid, and on the other hand, that during the drying process, the moisture can diffuse from the deeper fabric layers more quickly, so that with this device, as a rule, the entire laundry after Washing process can remain in the drum for subsequent drying and not a part has to be removed from the drum, as is the case with known washing / drying machines.

Further details of the invention are explained below using exemplary embodiments with reference to the drawings.

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Fig. 1 shows a horizontal cross section through an embodiment of the device according to the invention.

Fig. 2 is a vertical cross section along the line II-II in Fig. 1st

3 and 4 are special embodiments of guide devices or reflector walls.

5 is a horizontal cross section of a front loading door attached to an embodiment of the device, which is designed as a carrier for or for the heat radiators and for a conveying device for the heat carriers.

FIG. 6 is an elevation of the loading door shown in FIG. 5 with the adjacent wall areas of the device, the front wall of the loading door being removed or transparent.

Fig. 7 is a closure for a loading door of an embodiment of the device with simultaneous pipe and / or shaft coupling.

8 is a horizontal section through a front loading door designed as a carrier for a heat lamp in the form of an incandescent lamp, with the adjoining regions of the device.

FIG. 9 is the horizontal central section of the rear area of the device opposite FIG. 8 with a suction fan and a cooling surface located behind it.

10 is a horizontal section through a front loading door designed as a support for an annular or tubular heat radiator with a blower and the adjacent regions of the drum, which is equipped with a special conveying device for the washing liquid.

Fig. 11 is a vertical section along the line XI-XI in Fig. 10.

FIG. 12 is a vertical central section along the line XII-XII in FIG. 10.

13 is a vertical central section through a loading door, which is designed as a support for a ring-shaped or tubular heat radiator and can be opened in a horizontal plane, and is equipped with a vertically displaceable ventilation slide and a heating surface which can be operated by the heat radiator for the operator of an absorption refrigerator.

14 is a vertical central section of an embodiment of the device according to the invention, which can be loaded from above and is equipped with a fixed support for the heat radiator and two opposite guide devices which can be connected to conveying devices and an absorption refrigerator.

15 is a vertical central section through an embodiment of the device according to the invention looking in the direction from the inside of the device to the drum drum flap 3 or to the front loading door 1, this device being equipped with a fixed support for the heat radiator and being combined with an adjacent cooling device 83.

16 shows the flow diagram of an internal absorption refrigerator for a device according to the invention.

17 is the flow diagram of an internal compressor refrigerator for a device according to the invention.

18 shows the flow diagram of an external absorption refrigerator for a device according to the invention.

19 is the flow diagram of an external compressor refrigerator for a device according to the invention.

20 shows two circuit diagrams in connection with an external refrigeration machine according to one of FIGS. 18 or 19 for a device according to the invention.

Before starting up a device according to the invention, the laundry, such as laundry or other textiles, is opened with the loading door 1 (FIGS. 1 to 13 and 15) or with the cover 2 (FIG. 14) and drum flap 3 (FIGS. 14 and 15) open. into a drum 4 at the end face or into a drum 5 on the casing side, specifically from above in FIG. 14 and from the front in FIG. The devices are then closed, it being important to ensure that the ventilation valves or the ventilation slides, which are attached to the loading doors 1 in some embodiments of the device according to the invention, are closed before start-up, if this does not happen automatically, so that the washing process does not the washing liquid can escape through the ventilation openings 6, which are provided for the passage of air during the drying process.

For example, in the device according to FIG. 8 the door-shaped ventilation app 7 and in the device according to FIGS. 10 and 12 the blind-like wings 8 can be closed manually, for example by means of a cable. The ventilation openings 6 in FIG. 12 can also be closed by the vanes 8 by means of a switched-on rod-shaped electromagnet 9 (FIG. 4) which attracts the vanes 8 against a spring 10, the timely switching on and off of the electromagnet 9 expediently via a program circuit. Of course, the ventilation openings 6 can also be closed by the wings 8 by another adjusting device. The ventilation openings 6 in the loading door! 13 are closed by a slide 11 which is vertically displaceable in a guide 13-13 'by means of the handle 12,

by lifting the slider 11 by means of the handle 12 up to the upper stop of the guide 13 ', in order to then be pressed against the loading door 1, one or more electromagnets 14 which can be switched on by pressing on the slider 11, which is on the contact surface with the electromagnet is provided with a ferromagnetic insert 15, pull onto the loading door 1. Seals 16 ensure a good seal. Before the drying process begins, a program circuit can cause the electromagnet 14 to be switched off, as a result of which the slider 11 falls back into the position shown by gravity and ventilation of the items to be washed can be started.

Known safety switches are intended to ensure that the washing process cannot be initiated when the loading doors or ventilation valves or ventilation slides are open.

The supply of electricity and water is made possible in a known manner and the individual process steps of washing and drying are subsequently transferred to a known program control.

First of all, water is let into a collecting container 17 (FIGS. 2, 14 and 15) of a known type and this is prepared in a known manner by adding a detergent to the washing liquid with which the laundry to be found in the drum, for example via holes 18 is flooded, the washing liquid on the one hand under the influence of heat from a heating unit, which is located in a known manner outside the drum and / or according to the invention by heat radiators, which emit the heat partly by radiation and partly by convection directly into the Insert drum, is released, and on the other hand under mechanical action, which is caused by rotating the drum in a known manner, the washing of the laundry.

This rotation of the drum is carried out in a known manner by a motor, which is not shown in the drawing and the transmission devices of those generated by the motor

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Rotational movements on the drum should be of any suitable nature, as should also be the case for the storage of the drum, since these numerous possibilities are outside the scope of the invention.

Nevertheless, some options for storing and driving the drum should be shown.

For example, the drum 4 according to the embodiment in FIG. 1 is mounted in a bearing block 21 on the rear housing wall 22 of the device via a shaft 19 which carries a drive disk 20.

In the embodiment according to FIGS. 8 and 9, for example, the drum 4 is driven by a toothed wheel 23 which is driven by a motor (not shown) and which meshes with a toothed wheel 24 which is located on a drum shoulder 25. The wheel 24 can also be designed as a V-belt pulley, so that the drum 4 can be driven by a V-belt set that is connected to a motor (not shown).

Further, for example, the drum 5 according to the embodiment in FIG. 14 is supported by means of a hollow shaft 26 designed as a V-belt pulley in a bearing block 27, which is anchored in place by supports that are not shown in the section shown, and is driven by a motor, not shown, via V-belts.

The drum 5 in FIG. 15 can be driven via a disk or a hollow shaft 26. For example, the drum 5 can be set into a slow rotary movement via the hollow shaft 26 and into a fast (e.g. when spinning) rotary disc.

A preferred embodiment of the device according to the invention is such that the heat radiator 28 is attached to a support 29 which, in the embodiments according to FIGS. 14 and 15, is fixedly connected to the device, while in the other embodiments it is attached to the loading doors 1 are that the radiation surface of the heat radiators 28 is directed directly into the interior of the drum through a circular drum opening 30 on one of the two end faces of the drum 4 or 5, both during washing and when drying the items to be washed both by heat radiation and by convection, in which, on the one hand, the liquid heat transfer media, consisting of the washing liquid, and, on the other hand, the gaseous heat transfer media, consisting of air, are passed past the heating surfaces of the heat radiators 28 during drying, and the items to be washed are accelerated to the desired temperature.

The heat radiators 28 can be of various types. They can be both light emitters, emitters that emit predominantly at high temperatures in the range of visible light (approx. 0.4 to 0.75 micrometers), and dark emitters that emit their emission maximum in the long-wave infrared at lower temperatures -also in the invisible area - have, act. For example, the light bulb-shaped heat radiator 28 in FIG. 8 can be regarded as the representative of a light radiator, while the heat radiators 28 in the other figures of the drawings can be regarded as representatives of dark radiators. Of course, a combined application of light and dark radiators can also take place, as is shown, for example, in FIG. 8, in which, as has already been explained, 28 represents a light radiator, while 28 'represents a dark radiator.

As can be seen from FIGS. 1 and 2 or 5 and 6, the heat radiators 28 can either be plate-shaped with openings 31 or the heat radiators 28 each consist of a group of individual radiators, which are indicated again at intervals 31 are arranged from each other. The heat radiator according to FIG. 15 consists of a group of rod-shaped or cylindrical individual radiators. The heat radiators 28 in FIGS. 10 and 12 are ring-shaped, as is the heat radiator 28 'in FIG. 8.

As can be seen in FIGS. 10 and 12, a plurality of such rings arranged one behind the other can generally form the heat radiator 28. In the embodiments according to FIGS. 13 and 14, conical tubular or funnel-shaped heat radiators 28 are shown, which are caused by the inclined radiation surface which arises from the fact that the diameter of the drum 4 (FIG. 13) or 5 (FIG. 14) facing pipe end is larger than that of the pipe end facing away from the drum, cause the interior of the drum to be emitted particularly well because the conical radiation also captures those areas in the drum 4 or 5 which are not as good with cylindrical radiation could be detected, as can be seen from the course of the edge rays S emitted perpendicular to the radiation surface. Since the supports 29 open in a funnel shape in the direction of the drum axis and thus form a funnel 32, the funnel walls of which are designed as reflectors 33, the drums 4 are also heated by the heat radiators

28 and 28 'in the exemplary embodiments according to FIGS. 8 to 12 and 15 are well broadcast. The heat radiators 28 can on their rear side facing away from the drum opening 30 in addition to the heat insulation 34 of the carrier

29 be isolated. The reflectors 33 not only direct those rays that strike them directly from a heat radiator 28 through the drum opening 30 into the interior of the drum 4 or 5, but they also transmit those rays that wall from a drum into the funnel 32 of the carrier 29 are reflected, thrown back into the drum.

The reflector 33 'in the embodiment according to FIGS. 1 and 2 has a dual function. On the one hand, it has to perform a reflector function by reflecting back the rays that impinge on it from the heat radiator 28, that is to say reflecting it into the interior of the drum 4, and for this reason the side facing the drum 4 is reflective, while the the side facing away from the drum 4 is thermally insulated so that the heat loss to the outside is kept as low as possible and on the other hand the plate-shaped reflector 33 'has the function of a partition wall, namely in that at the beginning of the washing process as soon as the washing liquid rises in the collecting container 17 a guide 35, which runs on the one hand in the housing wall 22 and on the other hand in the loading door 1 and ensures an unobstructed transition when the loading door 1 is closed, pushes between the heat radiator 28 and the blower 36, since the reflector 33 'is attached to a float 37' and thus follows the movement of the liquid level in the collecting container 17. The up and down movement of the reflector 33 'can also take place by means of a lever arrangement which is attached between the float 37' and the reflector 33 '. The reflector 33 'designed as a partition thus prevents the washing liquid from escaping through the ventilation openings 6 on the loading door 1 of an embodiment according to FIG. 1. Before the drying process, the washing liquid is pumped out of the collecting container 17 in a known manner, with which the reflector 33' slides back into the position shown in FIG. 2. As a result, during the drying process, the air drawn in by the blower 36 (FIG. 1) via the ventilation openings 6 can be conveyed into the drum 4 via the heat radiators 28.

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However, before the drying process is dealt with generally, the heating and washing of the washing liquid by means of conveyors during the washing process of the devices is discussed below.

As was stated earlier, the washing liquid is brought to the desired temperature by the heat radiators 28, namely by heat radiation on the one hand and by direct contact (heat conduction) on the other hand.

This direct contact of the washing liquid with the heat radiators 28 comes very loosely in the embodiments according to FIGS. 1 and 2, 8 and 9 and 13, that is to say not very intensely, due to the fact that, due to the rotary movement of the drum 4, the washing liquid Flooded laundry is filled, a small amount of the total washing liquid is conveyed through the openings of a protective grid 37 arranged on the support 29 on the heat radiators 28 with each rotation, the temperature of this contacting amount of washing liquid and thus the total washing liquid increases, since yes the contacting Immediately after contact with the heat radiators 28, washing liquid flows back out of the funnel 32 into the drum 4 and mixes there with the remaining washing liquid, with temperature compensation taking place.

In another embodiment of the device according to the invention according to FIGS. 5 and 6, the washing liquid is pumped in via a funnel 32 by means of a pump, which is not shown in the drawing, via a guide device in the form of a distributor 38 which is arranged on the carrier 29 the drum 4 is sprayed, from where it passes through the perforations in the drum into the collecting container in order to be sucked in again by the pump, the washing liquid absorbing heat each time it passes through the heat radiators 28. However, the washing liquid can also be conveyed by means of the pump via another guide device, namely a connection opening 39 (FIG. 6) into the funnel 32 and via the heat radiators 28 into the drum if, for example, air is to be introduced via the distributor 38 during the drying process. Optionally, washing liquid can also be conveyed into the funnel 32 via the distributor 38 during the washing process and air via the connection opening 39 during the drying process. However, both the washing liquid during the washing process and the air during the drying process can also be introduced into the funnel 32 via a single guide device 38 or 39 if one of the two guide devices has both a connection P to the pump for the washing liquid and a connection G for the blower, has. The connecting lines between the guide devices 38 and / or 39 on the one hand and the conveying devices (pump, blower) on the other hand are denoted on the connection sides, which can lead to the guide devices 38 and / or 39, with both 38 'and 39', while the The connection side that leads to the pump is designated with P and the one that leads to the fan with G, which covers all connection options. Since in an embodiment according to FIGS. 5 and 6 the conveying devices are not arranged on the carrier 29, which in turn is attached to the loading door 1, but the conveying devices are located outside of the carrier 29 at suitable locations on the device, it is in connection with this that the loading door 1 must be able to be opened and closed by means of joints 40 fastened to the housing wall 22, it is necessary that either the connecting lines have to be flexible or, in the case of a rigid construction, the same can be interrupted or coupled. For example, the connecting lines 38 ', 39'-Pund 38', 39'-G between the

Joints 40 in FIG. 6 are tubular and can thus follow the movements of the loading door 1. These connecting hoses lead to the associated conveying devices through openings 41 in the housing wall 22.

7 shows the device of a rigid connecting line 38 ', 39'-P or 38', 39'-G, which is designed at the same time as a lock for the loading door 1.

When the loading door 1 is opened, a slide 42 is moved by hand in the direction of arrow 43 against the force of a compression spring 44, which is arranged between pipe sections 45 and 38 ', 39' - surrounded by a protective sleeve 46 -, the pipe end 45 being made of an annular sealing groove 47 of the pipe P, G is led out in the housing wall 22 of a device and the loading door 1 can be opened. 7 shows the locked state of the device, the flow channel, which is represented by the arrow 48, being closed by the coupling of the pipes 45-P, G. The direction of flow for the washing liquid or for the air is also indicated by the arrow 48. As soon as the device is put into operation, which is made possible in a known manner by a corresponding safety switch only when the loading door 1 is closed, a program circuit can have the slide 42 fixed by a fork 49. It is more expedient if you want to bring both washing liquid and air via a rigid connecting line according to FIG. 7 to the guide devices 38 and / or 39 and you want to refrain from additional valve arrangements that two devices according to FIG. 7 are arranged, but which are by a common slide 42 can be operated. In this way, one flow channel can be connected to the pump for conveying the washing liquid and the other flow channel can be connected to the blower for conveying the air. Before the actual program begins to run, the slide 42 can be made stationary in that the program causes the fork 49 to slide over the slide 42, which prevents the slide 42 from moving in the direction of the arrow 43, thus opening the loading door 1 is impossible during the program run.

In a further embodiment according to FIGS. 10 to 12, washing liquid when the drum 4 is rotated through these scooping containers 52 is conveyed via a conveyor device 50 which is attached to a drum attachment 51 of the drum 4 and which consists of an annular arrangement of relatively small scooping containers 52. which are just passing through the area of the lowest level, received in the collecting container 17, in order then, when these scooping containers 52 come into the area of the highest level, to empty them into a funnel-shaped gap 53 (FIGS. 11 and 12) which enters the funnel 32 of the Carrier 29 opens, from which it arrives in the drum 4 and thus again in the collecting container 17 communicating with the drum 4, although it has previously absorbed heat in the funnel 32 when it passes the heat radiators 28. So that the scooping containers 52, which, as can be seen from FIG. 11, describe a circular path in a vertical plane, actually also the washing liquid which they scoop in the areas of the lowest level, which is designated by T in FIGS. 11 and 12 , in the area of highest levels, which is denoted by H, it is necessary that the openings 54 of the scoops 52 outside the areas T and H are sufficiently covered by two circular-shaped plates 55 so that on the one hand there is at least no significant friction between The edges of the scooping container 52 and the plates 55 are formed and, on the other hand, the majority of the washing liquid scooped in T can be conveyed to H. The arrangement of two opposite plates 55 makes it possible to

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that regardless of whether the drum 4 rotates clockwise or counterclockwise, washing liquid can always be conveyed from T to H.

As can be seen from FIG. 12, the opening of the funnel-shaped gap 53 opens onto the blades of the fan 36. However, this should not be mandatory within the scope of the invention. Instead, the gap 53 could just as well open into the funnel 32 of the carrier 29 at another location, for example between two of the three heat radiators 28 shown in FIG. 12. However, if the gap 53 is directed towards the blades of the fan, this causes the fan to be operated when the ventilation openings 6 are of course closed,

that the washing liquid flowing through the gap 53 is atomized over the entire cross section of the funnel 32, which in particular also contributes to the rapid heating of the washing liquid if, instead of the annular heat radiators 28, as shown in FIG. 12, the heat radiators in the funnel 32 are arranged over the entire cross-section thereof, as shown in FIGS. 1 and 2.5 and 6 and in FIG. 15.

The fan 36 can either be directly by means of an electric motor which is accommodated in the housing 56, the housing 56 with the electric motor being able to protrude from the loading door 1, so that the electric motor is largely removed from the influence of the heat radiators 28, or indirectly via a shaft 57 -58-59, which are driven on the one hand outside the carrier 29 with a drive 60 and on the other hand via a gear arrangement which is arranged in the housing 56 and is connected to the blower 36, as can be seen from FIG. 10. The indirect drive of the blower 36 has the advantage that the drive 60, for example an electric motor, can be arranged outside the carrier 29 and thus on the one hand not exposed to the relatively high temperatures of the heat radiators 28 and on the other hand not exposed to the effects of moisture in the washing liquid when one hand does not want to provide the electric motor with the necessary protective equipment and on the other hand one does not want to attach a partition 33 'designed as a reflector between the heat radiators 28 and the fan 36, as was shown for example in FIGS. 1 and 2. After the drive 60 for the blower 36 in FIG. 10 is arranged outside the carrier 29, which in turn is mounted on the loading door I, the shaft which transmits the rotary movement from the drive 60 to the blower 36 has to be opened to open the loading door 1 , interrupted, that is, can be uncoupled. This uncoupling or coupling process, which is required when opening or closing the loading door 1, is carried out according to the pipe coupling principle described earlier, which is shown in the drawing in FIG. 7. If the pipe coupling in FIG. 7 is now used as a shaft coupling for the exemplary embodiment according to FIG. 10, the pipe sections 38 ', 39'-45-P, G in FIG. 7 correspond to the shaft sections 57-58-59 in 10. The shaft pieces 57 and 58 are thus again in the carrier 29, while the shaft piece 59 runs in the housing wall 22 and can already represent the shaft of the drive 60. In FIG. 7 it is already shown that the slide 42 is not fixedly connected to a driver 61, so that the slide 42, when the arrangement according to FIG. 7 is used as a shaft coupling in a device according to FIG Wave is not in the way. However, if the arrangement according to FIG. 7 is used as a pipe coupling, the slide 42 can be firmly connected to the driver 61. In the case of a pipe coupling arrangement according to FIG. 7, it is also sufficient to firmly connect the slide 42 directly to the pipe section 45, so that the driver 61 is unnecessary in this case.

If an arrangement according to FIG. 7 is designed as a shaft coupling, then this shaft can be designed as a hollow as well as a solid shaft and the sealing groove 47 is expediently replaced by a friction disk. Finally, it should also be stated that, if the spatial conditions permit, the drive 60 (FIG. 10) can also be arranged in the carrier 29 behind the reflector 33 at approximately the point 60 ′, openings 62 in the loading door 1 being able to provide cooling .

In the embodiment according to FIG. 14, the washing liquid is pumped out of the collecting container 17 by means of a pump 63 via a line 64, which is connected to one of the two concentric pipes 65 or 66, via an associated annular gap or via an associated annular nozzle 67 or 68 sprayed into the funnel 32 or directly onto the heat radiators 28 of the carrier 29, the washing liquid absorbing heat and then entering the drum 5, from where it flows again into the collecting container 17 communicating with the drum, and then again from the pump 63 to be recorded. 15, the washing liquid is received by a pump, which is not shown in the figure shown, in the collecting container 17 and via a pipe 65 ', which opens into the distributor 68', into the funnel 32 of the carrier 29 sprayed, after passing the heat radiators 28 through the protective grid 37 into the drum 5 and from there through the holes 18 back into the collecting container 17.

In all embodiments, it is expedient that the drums 4 or 5 do not make a continuous movement in a single direction of rotation, both in the washing process and in the drying process, but that they change their direction of rotation in more or less large intervals in a known manner, that is to say that they rotate both clockwise and counterclockwise. The rotation of the drums 4 or 5 is relatively slow so that the items to be washed or dry are not pressed against the inner jacket walls of the drum 4 or 5 by the centrifugal force, but due to their weight, always from the higher levels to the lower levels of the drum 4 or 5 can fall, which on the one hand causes the washing or Dry goods repeatedly cut the fictitiously elongated cone of the funnel 32, as a result of which an intensive contact is made between the wash or dry goods and the heat rays falling into the drum 4 or 5 and / or the washing liquid or dry air conveyed into the drum, which results in the The washing or drying process is shortened and, on the other hand, has the effect that the drying material is loosened again and again during the drying process and is therefore less creased.

As stated earlier, the individual steps during washing and drying in a device according to the invention are to be controlled by a program circuit. Program controls are well known and are therefore not dealt with in connection with the device in question, since this would go beyond the scope of the statements. However, it should be pointed out that the radiation power of the heat radiators 28 and the amount and the temperature of the washing liquid or dry air conveyed should be controllable.

In particular, the heat radiator 28 of a single device, which either consists of a single individual radiator or of several individual radiators, should be easy to regulate by varying the power supply in accordance with the respective conditions and / or when the heat radiator 28

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is formed from several individual radiators, individual radiators can be switched on or off.

It is advantageous if the emission maximum of the heat radiator 28 is driven towards the main absorption bands of the water, which are known to be 14/10 at three or six micrometers. The temperatures which the heat radiator 28 has to assume in each case can be determined sufficiently well with the Wien displacement law. A preferred wavelength of the absorption bands mentioned above is that of three micrometers, since this still provides sufficient radiation energy after the spectral intensity distribution.

Since in the devices described the washing liquid or the drying air is brought into contact with the heat radiator 28, the temperature of the heat radiator 28 is reduced, which results in a lowering of the frequency or an increase in the wavelength of the emitted radiation. Therefore, if radiation with a wavelength of three micrometers, for example, is to be radiated into a drum 4 or 5, the temperature of the heat radiator 28 must be increased by the amount that the temperature of the heat radiator 28 decreases due to heat conduction via the washing liquid or the drying air. Seen in this way, the amount of washing liquid or drying air contacting the heat radiator 28 can also be an instrument for varying the wavelength of the radiation emitted by the heat radiator 28.

After the washing process has ended, the drum can be brought to a relatively high number of revolutions in a known manner, so that a large part of the water is thrown out of the items to be washed by means of the centrifugal force, at the same time by means of the pump - in FIG. 14 this pump is 63 identical to the pump with which the washing liquid is sprayed over the heat radiator 28 - the water is pumped via a line 69, after the line 64 has previously been blocked by a two-way valve 63 'from the collecting container 17 into the drain (not shown).

In devices in which the laundry is also to be dried after washing, spinning - at least from excessive spinning - of the laundry after washing is discouraged, because the laundry is strongly compressed by the centrifugal force, which is also particularly the case the high water content that the laundry has in it is increased. If the laundry is spun only moderately or not at all, it is transferred to the drying process with a higher moisture content, but since it has not been compressed so much, the water can be removed from the laundry better and the laundry will also wrinkle less as it can always move more freely in the drum than if it had been thrown with a high number of revolutions. Finally, it should also be noted that considerable savings can be made in the construction of a device in which spinning is dispensed with, since spinning in particular places an enormous mechanical load on the machine, which of course can only be compensated for if the machine is built accordingly robust.

If a little more water has to be removed during drying by not spinning the laundry, which results in a greater need for thermal energy, this additional requirement for thermal energy is due to a less robust and thus less expensive machine construction and a less wrinkled laundry at the end of the drying phase across from. In this context, however, the utilization of the waste heat from the refrigeration machines used to dry the laundry should be pointed out at this point, as will be demonstrated in detail later.

Before initiation of the drying process, on the one hand, all the water must be pumped out of the collecting container 17 and, on the other hand, the ventilation openings 6 in the embodiments according to FIGS. 1, 8, 12 and 13 must be opened so that the blower 36 can be given cold air, with room air below that Space is to be understood, in which the device is set up, can be sucked in, then passed over the switched-on heat radiators 28, in order to absorb heat there and then finally to be conveyed into the drum 4, where the drying air, in particular through the direct action of the heat rays on the drying material is carried away by the water escaping in the form of steam.

Also in the embodiments according to FIGS. 5, 6, 14 and 15, the surface water of the dry material or the water diffusing from the dry material under the action of radiation is removed by means of air heated on the heat radiators 28, but not directly by means of an air in the funnel 32 the fan 29 arranged in the carrier 29 is conveyed into the drum 4 or 5, but indirectly via the guide devices such as the distributor 38 (FIGS. 5 and 6) or the connection opening 39 (FIG. 6) or via the annular gap or via the annular nozzle 67 or 68 (FIG. 14) or finally via the distributor 68 '(FIG. 15), which in each case is connected to a blower 36 which is located outside of the carrier 29 at another location (only shown in FIG. 15) of the device is connected, the air circulation preferably taking place in a closed circuit, which will be discussed in detail later.

Also in the embodiment according to FIGS. 8 and 9, the blower 36 is not located in the funnel 32 of the carrier 29, but in a tube 70 (FIG. 9), which can also be a conical tube that extends beyond the drum 4 to the carrier 29 (FIG. 8) lies opposite and protrudes into the circular recess 71 on the front side of the drum 4, a protective grid 37 closing off the tube 70 on the drum side. In an embodiment according to FIGS. 8 and 9, the drying air is sucked through the drying material in the drum 4 by means of the suction blower 36, since the drying material is on the suction side of the blower 36, while in a device according to FIGS. 1 and 2, 10 to 12 and 13, the drying air is pressed through the drying material that has been introduced into a drum 4, since the drying material is on the pressure side of the blower 36.

As in the other embodiments of the device according to the invention, in an embodiment according to FIG. 9 the blower 36 can also be driven by an electric motor, which can be accommodated in the housing 56. However, if one wishes to forego the use of an electric motor for reasons such as those mentioned earlier in connection with the embodiment according to FIG. 10, the blower 36 in FIG. 9 can be driven by the rotating drum 4 in that the Inside the tubular drum extension 25 is equipped with a ring gear 72 and via this ring gear the rotary movement of the drum 4 is transmitted to a gear 73, which is fastened to the tube 70, which transmits the rotation via a shaft 74 to a gear arrangement in the housing 56 is housed and drives the fan 36. Since, according to earlier versions, the direction of rotation of the drum 4 has to change constantly, but the direction of rotation of the blower 36 must be maintained, a mechanism known per se must be installed in the gear 73 or in the housing 56, which ensures this. Furthermore, by means of an electromagnetic clutch, which is located either in the transmission 73 or in the housing 56, but preferably in the

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Gear 73 is arranged, the blower 36 can be switched off during the washing process.

The fan 36 according to FIG. 9 can finally also via a V-belt, which has a groove 75 of a V-belt pulley which is arranged at the rear end of the housing 56 or which takes up the space of the housing 56 at all and through the two slots 76 in the pipe 70 leads the V-belt pulley of an electric motor, this electric motor is now the motor that also drives the drum 4, or it is an electric motor that is provided specifically for driving the blower 36.

The dry air, which absorbs moisture in a drum 4 or 5, leaves the drum 4 or 5 through holes 18 which are arranged in the end wall of a drum 4 or 5 opposite the support 29 and / or also through the holes 18 which are attached in the jacket of the drum 4 or 5 and we then via a cooling surface 77 (Fig. 1 and 9) or 78 (Fig. 14) or 22 '(Fig. 15), where they more or less due to the moisture absorbed Cooling emits, guided, in order then either to leave the housing wall 22 of the device through holes (not shown) or to be sucked in again within the device by the blower which has previously dried this dry air through the dry material in the drum 4 or 5 has promoted.

After the heat radiators 28 radiate into the drum 4 or 5, the walls of the drum and in particular the end wall which is opposite the carrier 29 naturally also heat up. If holes 18 are arranged in the end wall of the drum 4 or 5 for fluidic reasons, then the heat rays of the heat radiators 28 pass through these holes 18 onto the cooling surfaces 77 or 78 or 22 'and heat them, thereby increasing their cooling or performance is reduced. To prevent this, a reflector wall 79 (FIGS. 1 and 15) can be arranged between the drum 4 or 5 and the cooling surface 22, 22 ', 77 or 78, which reflects the rays impinging on them through the holes 18 onto the Throws back the front wall of the drum. If the reflector wall 79 is designed as a closed wall, that is, if it is not perforated, then the reflector wall 79 must not be brought up to the housing walls 22 or 22 ', but have gaps between the reflector wall 79 and the housing walls 22 and 22' 80 (Fig. 1), so that the moist air flows can be brought via this to a cooling surface 22, 22 ', 77 or 78. The reflector wall 79 can also be designed as a perforated wall. For example, FIG. 3 shows such a perforated reflector wall 79. In this embodiment, the moist air can reach the cooling surface 22, 22 ', 77, 78 via holes 81. In this embodiment, the reflector wall 79 can be connected to the housing walls 22. So that heat rays cannot again fall through the holes 81 onto the cooling surface 22, 22 ′, 77, 78, the holes 81 are provided with overlaps 82.

The reflector wall 79 can, however, also consist of a device according to FIG. 4, as its function has already been described in an embodiment according to FIGS. 10 to 12. During the washing process, the openings 6 of the reflector wall 79 (FIG. 4) are kept closed by the wings 8, so that when the reflector wall 79 is firmly connected to the housing walls 22 of the device and therefore no gaps 80 (FIG. 1) are present , The cooling surface 22,22 ', 77,78 is completely stripped from the washing process, which also reduces the heat loss during the washing process. During the drying process, the blades 8 assume the position shown in FIG. 4, so that on the one hand the moist air can be brought to a cooling surface 22, 22 ', 77, 78 via the openings 6 and on the other hand by the fact that the drum 4 or 5 adjacent sides of the inclined wings 8 are designed as reflectors, the heat rays, which fall through the holes 18 of the drum 4 or 5, are thrown back, so that heating of the cooling surfaces 22, 22 ', 77, 78 by direct radiation is avoided. As can be seen from FIG. 15, only a small area of the reflector wall 79 according to FIG. 4 is formed there, while the remaining part of the reflector wall 79 is air-impermeable and firmly connected to the housing walls 22.

The purpose of attaching cooling surfaces 22, 22 ', 77, 78 in the device is that at least a portion of the water taken up in the gaseous state by the dry air in the items to be washed is released to the items to be washed, that is to say, condenses and those not shown further Openings in the device escaping moist air - if the dry air is not at all in a closed circuit, as will be shown later in FIGS. 14 and 15 - thus has a lower moisture content than if it had not been passed over cooling surfaces. A reduction in the moisture content of the drying air emerging from the device is a necessity, because the places of use of mass-produced devices for washing and drying laundry are very different, and it is not indifferent at every place of use whether air of often almost 100% relative humidity in the room is blown, and not every place of use has a suitable exhaust duct through which the humid air could be led directly into the open, but there are mostly rooms in which the humid air saturated with water affects the equipment or facilities of the room Rooms would have a damaging effect, and for this reason it is necessary to lower the relative humidity of the air that leaves the device.

In a simple embodiment, the cooling surface 77 can be identical to the rear housing wall 22, as is indicated in FIG. 1. The rear housing wall 22 will then be made of a highly heat-conductive material so that the heat of vaporization released during the condensation process can be dissipated well. The rear housing wall 22, which, as already stated, can be designed as a cooling surface 77, is expediently designed such that its heat-emitting surface becomes as large as possible, which is achieved by making the wall rib-shaped. As a rule, however, such a cooling method will not be very effective, since the devices in question will for the most part be set up in rooms in which room temperatures prevail and thus only weak condensation processes can occur. A number of more effective cooling devices are therefore shown below.

Another possibility of using a housing wall of an embodiment of the device as a cooling surface is shown in FIG. 15. In this embodiment, the cooling of the housing wall 22 'takes place from the outside by either two walls, namely a housing wall 22' of the device and a housing wall of a conventional cooling apparatus 83, for example that of a refrigerator, being in direct contact, or the device and the Cooling device 83 have a common housing wall 22 'as a dividing wall, as shown there in FIG. 15, wherein the housing wall 22' can also be designed as an evaporator of a refrigerator which is accommodated in the cooling device 83. A prerequisite for such a combination of washing machine and refrigerator is of course the spatial installation options, which are certainly not everywhere

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given, but if they exist, there is a very economical and solid method for drying the moist air by means of cooling, since the cooling unit of the cooling apparatus generates the necessary low temperatures on the condensation side of the device during the drying process and thus onto a cooling unit within the device can be dispensed with. A good refrigerator will safely withstand this additional stress during the drying phase of the device. However, in order not to stress the cooling device during the time when the device is not in operation, but in particular during the washing phase by supplying heat, care must be taken to ensure that there is good insulation between the cooling device and the device during these times. For this reason, the reflector wall 79 shown in FIG. 15 is also designed in a corresponding manner as an insulating wall. The wings 8 can also consist of a good insulating material. On the other hand, the partition or housing wall 22 'common to the device according to FIG. 15 and the cooling apparatus 83 is made of a material which has good thermal conductivity. Thus, on the one hand, through the insulated reflector wall 79 and through the openings 6 covered by the wings 8, the cooling apparatus 83 is not exposed to the heat load from the device during the washing process, and on the other hand, in the drying phase with the wings 8 open, the drying of the moist air, which the fan 36, which is located in a cooling shaft 84 delimited by the walls 22 'and 79, is sucked through the openings 6, because the good thermal conductivity of the separating or housing wall 22' designed as a cooling surface means that the condensation continuously released evaporation heat is dissipated. The water precipitating on the cooling surface 22 'collects at the deepest point of the cooling shaft 84 and flows via a pipe or a channel 85 into the collecting container 17, from which it is pumped out in a known manner. The inlet opening 86 of the tube or of the channel 85 can be closed either by means of a wing 8 or by means of a known valve (not shown) during the washing process and also during the non-operational time of the device, so that in particular no water vapor enters the cooling space 84 during the washing process can.

Another possibility of being able to dissipate the heat of condensation via a cooling surface 77 or 78 is that the cooling surface 77 or 78 is the boundary surface of a hollow body 87 (FIGS. 9 and 14) through which a coolant flows, which is continuously on the Cooling surface 77 or 78 absorbs and dissipates heat.

This coolant consists either of cooling water, for example tap water, or of a refrigerant, as is used in conventional refrigeration machines.

The first coolant, namely tap water, cannot be used everywhere for several reasons, because the tap water network is usually identical to the drinking water supply network and drinking water is becoming increasingly scarce in many places, so that the use of drinking water for cooling purposes is not economically justifiable everywhere is.

Seen in this way, the only effective coolant ultimately remains the refrigerants in the hollow bodies 87 (FIGS. 9 and 14), which can be identical to the evaporators 87 (FIGS. 16 to 19) of refrigeration machines, the flow diagrams of which are shown in FIG. 16 to 19 are evaporated and remove the evaporation heat released on the cooling surfaces 77 and 78 during the condensation of the water vapor carried by the air and originating from the laundry and thus cause the drying of the moist air.

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The evaporator 87 can either belong to an absorption refrigerator (FIGS. 16 and 18) or a compressor refrigerator (FIGS. 17 and 19). Furthermore, either a chiller in its entirety can belong to the device (FIG. 16 or 17) or only one evaporator 87 (FIG. 18 or 19) including the necessary auxiliary devices belong to one embodiment of the device, while all other devices of a chiller according to the 18 or 19 are components of a separate cooling apparatus, for example a refrigerator, which is set up next to the device, as has already been described in the embodiment according to FIG. 15.

In the context of the invention, it should be irrelevant which type of chiller is used. The only thing that is essential is always the removal of the heat released during the condensation of the water vapor, so that the moist air coming from the drum 4 or 5 can be optimally dried. The use of any refrigeration machine should therefore not be impaired by the following explanations based on the simple flow diagrams according to FIGS. 16 to 19, but the following representations are only intended to help explain the functioning of the devices further.

First of all, the use of absorption chillers according to the flow diagrams according to FIGS. 16 and 18 will be dealt with.

The refrigerant in the evaporator 87 (FIGS. 9, 14, 16 and 18) evaporates upon absorption of heat energy, which comes from the warm moist air, via the cooling surfaces 77 and 78 delimiting the evaporator 87 (FIGS. 1, 9 and 14, respectively) ) -carried, the water vapor that the air carries condenses and thus the air is dried and cooled. The evaporated refrigerant is absorbed by the poor solution in an absorber 88, the released enthalpy of absorption having to be dissipated. Since the absorption capacity increases with falling temperature, it must be sought that the absorber temperature is as low as possible. When the refrigerant is absorbed, the poor solution becomes the rich solution, either by means of a circulating pump (not shown) or preferably by the thermosiphon effect - which is caused by the fact that a heater 89 in a region of a pipeline 90 generates vapor bubbles of the solution in this, which promote the rich solution - is promoted in an expeller 91. The thermosiphon effect has the known advantage that absorption chillers can work without mechanically moving parts. In the expeller 91, the rich solution is supplied with heat by heating. This heating is usually provided for absorption chillers specifically for the expeller purpose. This is also the case when using an absorption refrigerator according to FIG. 18 in connection with the device. However, this does not necessarily have to be the case when using an absorption refrigerator according to FIG. 16 on a device according to the invention, because in this case the expeller 91 can also be heated by a heat radiator 28, as can be seen from FIGS. 13 and 14. In these two embodiments, the expeller 91 is located above a heat radiator 28, which thus fulfills three functions. First, it contributes to the heating of the washing liquid during the washing process. Secondly, it contributes to the heating of the dry air and the dry material in the drum 4 or 5 during the drying phase, and the same radiant heater 28 thirdly contributes to the drying of the moist air leaving the drum 4 or 5, in that, just as already stated, this radiant heater 28 supports the expeller 91 one of the device's own absorption refrigerator. As stated earlier

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the heat radiators 28 are stripped in such a way that they can radiate their rays predominantly only through the drum opening 30 into the drum 4 or 5. In the event that a heat radiator 28 is also provided for heating an expeller 91, this insulation in the area of the heating surface 92 (FIG. 13) of the expeller 91 is reduced or replaced by a corresponding heat conductor such that the expeller 91 is heated can be done in an optimal manner. As was further explained earlier, the heat radiator 28 can be constructed from a group of individual radiators. Since, in the final phase of the drying process, the drying temperature generally has to be reduced for reasons of quality, which can be achieved by switching off individual radiators, it is advisable to provide the last individual radiator to be switched off for heating the expeller 91, so that until the end of the drying process the functional activity of the absorption refrigerator remains guaranteed.

As soon as heat is supplied to the expeller, this takes. Solubility of the solvent and there is on the one hand the expulsion of the refrigerant, which now gets into a condenser 93. On the other hand, the solvent also leaves the expeller in the form of a poor hot solution and flows back into the absorber 88 through a pipe 95 and a throttle 96. Since, as has already been stated, the performance of the absorber 88 increases as the temperature drops, it is advisable to extract heat from the poor hot solution on the way from the expeller 91 to the absorber 88, which is achieved in a known manner by separating between the Absorber 88 and the expeller 91 builds a countercurrent heat exchanger 97, which on the one hand causes the rich and relatively cold solution that flows from the absorber via the pipeline 90 to the expeller 91, which reduces the heat requirement of the expeller 91 and on the other hand causes the poor hot solution in tube 95 loses heat and flows back into absorber 88 at a more moderate temperature, thus increasing its performance.

In an embodiment of the device according to the invention with its own absorption refrigeration machine according to FIG. 16, however, heat can also be removed from the poor hot solution in the pipe 95 additionally or exclusively by passing cold air over a heat exchanger 95 'in the fan tube 98, under the term cold air Either air is to be understood that has just been sucked in at the installation site of the device by a blower or it is air that has previously been cooled on the evaporator 87 for drying and is now used again to dry the damp laundry in the drum 4 or 5 should be used.

Likewise, in addition or exclusively, the heat given off by the condenser 93 can be used to preheat the drying air. The same can also apply to the waste heat from the absorber 88. If several heat sources are switched on in the air flow of a blower in this way, the heat sources are to be arranged in the flow direction according to the increasing temperature level, it being a matter of course that the heat radiator 28 is arranged as the last heat source. By utilizing the waste heat in this way, energy can be saved on the heat radiator 28, which increases the economy of the device.

16 and 18, the solvent takes the path in the direction of the arrow 99, while the refrigerant takes the path in the direction of the arrow 100.

After the refrigerant has been liquefied in the condenser 93 after being expelled in the expeller 91, it flows through a

Line arrangement 101, 102, in which a throttle 103, by means of which the refrigerant is throttled to a low pressure, is built back into the evaporator 87, where it evaporates again, which also closes the circuit.

Further embodiments, as can still be seen in FIGS. 16 and 18, are dealt with later after the general treatment of the compression refrigerator with analog devices.

In the compressor refrigeration machines shown in FIGS. 17 and 19, the evaporator 87 can again be identical to the hollow bodies 87 (FIGS. 1, 9 and 14) delimited by cooling surfaces 77 and 78, respectively, on which the coming out of the drum 4 or 5 Cools damp air while releasing water, the heat given off being removed from the refrigerant vapor which forms in the evaporator 87 and is drawn in and compressed by a compressor 104 via the pipe arrangement 101, 102. The compressed refrigerant vapor condenses while releasing heat in the condenser 93, the heat released being able to be used again to preheat cold air, which is passed from the blower through the blower tube 98 (FIG. 17) via the condenser 93, and then on the heat radiator 28 onto the Drying temperature brought and then introduced into the drum 4 or 5 to dry the laundry. Via the pipe 101, 102 with the throttle 103 interposed therebetween, the refrigerant returns to the evaporator 87, where it evaporates again with the absorption of heat.

16 or 17 in its entirety belongs to an embodiment of the device, pipeline 101, 102 between the condenser 93 and the evaporator 87 and here again preferably between a valve 105 and the valve 103, which can be a shut-off throttle an intermediate container 106 which is not exposed to any significant heat source can be installed, in which at least such a corresponding part of the refrigerant is stored during the washing process that the remaining refrigerant cannot become a pressure hazard under the influence of the washing temperature.

18 or 19, only the evaporator 87 with some necessary auxiliary devices, such as a valve 107 and the line branch 102 and optionally also the throttle 103 (only FIG. 18), belong to a refrigeration machine according to one embodiment in FIG. to the device, while all other devices of a refrigeration machine according to FIG. 18 or 19 belong to their own cooling apparatus, which is preferably set up in the connection area of the device.

As can be seen from FIGS. 18 and 19, each of these refrigeration machines has two evaporators, namely the evaporator 87 for the device in question and an evaporator 108 for the main cooling apparatus. If an embodiment of the device, which is combined with a cooling device which is driven by a refrigeration machine according to one of the FIGS. 18 or 19, is not in the drying phase or is out of operation at all, the valve 107 is closed and the evaporator 87 is thus out of operation. while the evaporator 108 of the refrigerator may be operating when the refrigerator is on. However, if the device is in operation, the valve 107, which - or at least its switch or its electrical connections - is preferably switched on at the beginning of the drying process by program switching of the device, if the device and the cooling apparatus are not connected to a fixed structural unit at all, is advantageously arranged on the outer wall of the cooling apparatus, so that the circuit and connection can be made easily, opened and the refrigerant comes in addition to the evaporator 108 via the evaporator 87

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Device in the circuit of the chillers according to one of FIG. 18 or 19. Since it can also happen with a combined device of a device according to the invention and a conventional cooling device with a chiller according to one of the FIGS. 18 or 19 that the operation of the Device associated evaporator 87, but the operation of the evaporator 108 belonging to the cooling apparatus is not necessary, a valve 109 is provided, which may be closed, whereby the flow of refrigerant to the evaporator 108 of the cooling apparatus is interrupted. Only when neither the use of the evaporator 87 nor the use of the evaporator 108 is required is the solvent flow and / or the refrigerant flow to be prevented, that is to say the refrigerator is switched off automatically, or to put it another way using the simple circuit diagram according to FIG. 20 18 or 19 always switch on as soon as voltage is applied to one of the two valves 107 or 109, which results in the respective valve being opened. If, for example, the program circuit of the device initiates the drying phase, voltage is also applied to valve 107 (FIG. 18 or 19), which on the one hand causes the valve under tension to be opened and on the other hand causes the valve to move 107 assigned switch 107 '(Fig. 20a) closes, whereby the unit 110 (Fig. 20a) also comes under voltage. This unit 110 can represent the motor that drives the compressor 104 of the compression refrigerator according to FIG. 19 or this unit 110 can embody the heater for the expeller 91 or the heater 89 for the thermosiphon of an absorption refrigerator according to FIG. 18, or this unit 110 can both a circulation pump, which takes the place of the thermosiphon, and also the heating for the expeller 91 of FIG. 18. Just as the valve 107 is assigned to the switch 107 ', a switch 109' (FIG. 20a) is also assigned to the valve 109 (FIGS. 18 and 19), which closes when the valve 109 is switched on by switching the Chiller causes a voltage to be applied.

As can be seen from the simplified circuit diagram according to FIG. 20a, on the one hand the unit 110 driving a refrigerator according to one of FIGS. 18 or 19 always operates when at least one of the two switches 107 'or 109' is closed, that is to say , voltage is applied to at least one of the valves 107 or 109 and, on the other hand, the unit 110 is only switched off when both switches 107 'and 109' are open (illustrated state), that is to say that neither of the two valves 107 or 109 is below Voltage is present and therefore cold is not required either in the device or in the cooling apparatus.

According to a circuit according to FIG. 20b, the same effect is achieved as with a circuit according to FIG. 20a. The only difference is that the switches 107 'and 109' are not actuated by the valves 107 and 109, but that the switch 107 'is part of the program circuit of the device and the switch 109' is part of the circuit of the external refrigerator thus the switches 107 'and 109' are operated directly by the respective program circuit.

The throttle 103 (FIGS. 18 and 19) can be connected upstream or downstream of the valves 107 and 109. When connected in series, as can be seen from FIG. 18, both in the wiring harness

102 as well as in the wiring harness 101 a choke 103 is required, while with a single choke

103 the sufficiency is found, as can be seen from FIG. 19.

As has already been stated, either the drying air, after it has been washed on the damp laundry in the

Drum 4 or 5 has taken up water and after it has been cooled more or less outside the drum for the purpose of drying the moist air on cooling surfaces, leave the device through openings (not shown) in the same or the drying air is guided in a closed circuit. Guiding the drying air in a closed circuit has the advantage on the one hand that the installation site of the device is not subject to constant air circulation during the drying phase, which can be particularly unpleasant if the place of use of the machine in question is identical to a living space and on the other hand the advantage With the fact that in locations with a high relative humidity with a smaller amount of air for the removal of a vaporized water unit, it will be sufficient than if the room fan always had to suck in moist room air, because for reasons of quality that are gentle on the laundry, the air can be heated Do not exceed a certain temperature, so that despite being heated, the sucked-in moist room air would always be sent through the laundry with a greater relative humidity than a circulating dry air, which of course presupposes that in this circuit uf a cooling surface is switched on, where sufficient water can separate. This cycle of the drying air is accomplished according to FIGS. 14 and 15 in that the blower 36 (only shown in FIG. 15), which can also be a piston blower, air through a funnel 111 (FIG. 14) or via the Openings 6 and the cooling shaft 84 (Fig. 15) from the drum 4 or 5, wherein it is guided over the cooling surface 78 (Fig. 14) or 22 '(Fig. 15), where it releases heat and water. This sucked-in air, which has become poor in moisture on the cooling surface, is compressed by the blower and, if the device is connected to a refrigerator, is sent before or after the compression through the pipe 98 (FIGS. 16 and 17), where it accumulates on the waste heat of the Devices 93 and / or 95 'and / or 88 of the refrigerator are heated.

The air, which is preferably preheated in this way, is then fed into the pressure side of the fan via one of the connecting pipes 65 or 66 and the associated ring nozzle 67 or 68 (FIG. 14) or via the connecting pipe 65 'and the distributor 68' (FIG. 15) Funnel 32 of the carrier 29, which is equipped with heat radiators 28, blown. The air heats up on the heat radiators 28, which also increases its ability to absorb water, and then enters the drum 4 or 5, where it firstly removes the surface water and finally that due to the action of heat rays from the inner layers of the fabric Washable diffusing water absorbs. It is preferable to have the drum turn clockwise and then counterclockwise for a short period of time during the entire drying time, since the laundry is in constant motion and the drying air can blow through it much better, what rapid drying on the one hand and low-crease dry washing on the other hand, as stated earlier. In the drum 4 or 5, however, the dry air saturating with water already returns to the suction effect of the blower, which guides the moist air for water delivery or drying again via a cooling surface 78 (FIG. 14) or 22 '(FIG. 15) with which the cycle is already closed.

At the end of the explanations about the device in question, it should also be noted that any combination can be made between the individual described embodiments within the scope of the invention if further advantages can be achieved thereby.

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Claims (11)

635632 PATENT CLAIMS 1. Device for washing and drying laundry, with a power-driven drum (4, 5), which has an opening on one end face, and with a blower arranged outside the drum (4, 5), together with an associated heating element, for blowing warm air through by the drum, characterized in that the heating element consists of heat radiators (28) and is arranged directly adjacent to the front drum opening (30) radiating into the drum interior and the heat radiators (28) for the purpose of optionally flooding the drum (4; 5) with washing liquid or Air conveying devices and for drying the air leaving the drum (4; 5), cooling surfaces (22; 22 '; 77; 78) are assigned. 2. Device according to claim 1, characterized in that the blower (36) with optional support of guide devices, designed as ventilation openings (6) and wing (8), and / or distributor (38; 68 ') or connection opening (39) or During the drying process, ring nozzles (67, 68) blow air over the heat radiators (28) and a funnel (32) into the drum (4; 5) (Fig. 1,5,6,10-15) or suck (Fig. 8 , 9). 3. Device according to claim 2, characterized in that a pump (63) is provided as the conveying device for washing liquid, connecting lines between the pump (63) and the blower (36) and the guide devices (38,39; 67,68; 68 ') are designed as flexible pipes (38', 39 ', Fig. 6) and / or couplable pipe sections (38', 39'-45-P, G, Fig. 7). 4. Device according to claims 2 and 3, characterized in that the detachable pipe sections (38 ', 39'-45-P, G) are designed as a lock for a loading door (1). 5. The device according to claim 1, characterized in that the cooling surfaces are formed by a heat-conducting housing wall (22 '), the cooling of which takes place outside the device, preferably by means of a cooling apparatus to be connected. 6. The device according to claim 1, characterized in that the cooling surfaces are the boundary surfaces of an evaporator (87), to which a refrigerant is supplied from an internal or an external refrigeration machine. 7. The device according to claim 6, characterized in that an expeller (91) of an internally arranged absorption refrigerator can be heated by the heat radiators (28). 8. The device according to claim 6, characterized in that an intermediate container (106) is arranged between the evaporator (87) and a condenser (93) of the refrigerator. 9. The device according to claim 6, characterized in that heat exchangers (93, 104; 95 ', 88) are arranged in a tube (98) connected to the blower. 10. The device according to claim 6, characterized in that the internal evaporator (87) can be supplied with the refrigerant of an external refrigeration machine via a valve (107) which can be excited, preferably by a program circuit. 11. The device according to claim 1, characterized in that the cooling surfaces (22; 22 '; 77; 78,87) against radiation and heat influences through walls (79) and any openings (6, 81) through wings (8) or Overlaps (82) can be closed or shielded.