DE2724019A1 - HEATING AND / OR VENTILATION DEVICE FOR A MOTOR VEHICLE - Google Patents

Description

Daimler-Benz Aktiengesellschaft Palm 11

Stuttgart-Untertiirkheim ? -H. ^r >. 77

piping and / or ventilation device for a motor vehicle

The invention relates to a heating and / or ventilation device for a motor vehicle, in particular for a train and / or Work vehicle with the driver's cab at the front and rear is provided with windshields, in which the devices for air treatment are arranged in the roof of the driver's cab are and hollow profiles of the driver's cab or air ducts are used in the same to conduct air.

In the case of commercial vehicles, the aim is to keep the driver's cab draft-free To supply a sufficient amount of dust-free fresh air, which is heated or cooled as required. There is in particular in damp, cold weather the problem, the windshields to prevent fogging and the associated Avoid impairment of visibility through adequate ventilation.

For example, the DT-AS 2 212 O16 is a driver's cab a commercial vehicle known in which the hollow frame parts the rollover protection device as a guide channel and distributor for heating materials conveyed directly or indirectly by the drive unit and / or cooling air to ventilate the driver's cab, and that

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parallel to the first guided further hollow frame parts of the Roll-over protection device one or more of the work equipment the hydraulic system have through-flow channel or channels to form a Värmeaustauscheinrichtung. Such a solution However, it has the disadvantage that, in addition to the temperature differences that arise in the driver's cab, these are considered unpleasant by the driver Recommendations are made that the windshields are not ventilated evenly and adequately over the surface.

The object of the invention is to improve heating and / or ventilation of the type presupposed at the beginning in such a way that using known structural components, a simple and particularly effective windshield ventilation is achieved on the front as well as on the rear window.

This object is achieved in that with a single air treatment system directly supplies the front and / or rear side with climatically conditioned air will.

By supplying climatically conditioned air in the immediate vicinity of the windshield on the front and / or rear side the ventilation can be regulated individually and as required and optimally used.

In a further development of the invention is provided for optimal and draft-free distribution of the supply air and intensive ventilation of the windshields that the device for air conditioning are arranged in the roof so that the air inlet into the Equipment for air treatment via ducts above the windshields and the outlet by means of air distribution nozzles regularly distributed over the width of the windshields, which are also above the windshields.

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In a further embodiment of the invention it is also provided that the channels for outside air and for conditioned air transversely to Direction of travel over the two windshields are arranged parallel next to one another at the same height and that the device for air conditioning is arranged laterally.

In addition, the duct for the air inlet above one of the both windshields lie, the air treatment device can be arranged parallel to this supply air duct and the conditioned air can flow through channels running in the edge area of the roof to the top of the two windshields be directed.

This ensures that the conditioned air ventilates the windshields directly and without drafts from top to bottom.

In addition, it is possible to selectively act simultaneously on the front and / or the rear side following the A switchover flap can be provided in each case for the air treatment device in the air duct. The supply air to the front and rear can so that they can be better adapted to the needs.

Finally, at the air inlet or can at the air inlets be connected upstream in the processing device filter.

The invention is to be explained in more detail using an exemplary embodiment. Show it:

1 shows a driver's cab of a commercial vehicle, FIG. 2 shows a section along the line H-II in FIG. 1

with side arrangement of the air treatment device,

Fig. 3 is a section along the line TII-III in Fig. 2,

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FIG. K shows a section along the line IV-IV in FIG. 2,

Fig. 5 shows an air treatment device above the Windshield arranged and

Fig. 6 is a section along the line V-V in Fig. ") ♦

The driver's cab 1 shown in Fig. 1 is constructed symmetrically. Front and rear sides 2 and 3 and the two side surfaces k consist of the same components. A roof flap 6 is provided in the roof. On the front and rear sides 2, 3 of the roof 5, additional work lights 7 and filter attachments 8 are provided for the supply air (FIGS. 2 - h). The supply air passes through ducts 0 to the air treatment device 10, which can be composed, for example, of a heat exchanger 11, an evaporator 12 and an additional ventilation 13. The units 11-13 can each be provided with a fan 14. After passing through the units 11-13, the correspondingly conditioned air arrives in an im essentially U-shaped air duct above the windshields 16 to the front and rear sides 2 and 3 and through air distribution nozzles 17 arranged regularly over the width of the windshields 16 into the interior of the driver's cab In the air duct 1 "> there are also reversing flaps 18, which allow individual control of the closed allow air.

However, the air treatment device 10 can also be carried out in parallel be arranged to the front or rear side 2, 3 (Fig. ·> and Fig. 6), especially when, in the case of smaller driver's cabs, the two long sides of the driver's cab are intended to accommodate other items of equipment, such as radios 19, radios 20, etc. are.

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Claims (1)

Daimler-Benz Aktiengesellschaft Palm 11 Stuttgart-Untertürkheim 2U.5.77 Expectations Heating and / or ventilation device for a motor vehicle, in particular for a tractor and / or work vehicle, in which the driver's cab is provided with windshields at the front and rear, in which the device arranged for air treatment in the roof of the driver's cab are and hollow profiles of the driver's cab or air ducts are used in the same to conduct air, characterized in that the front and / or rear window directly with a single air treatment system climatically conditioned air are supplied. 2. Device according to claim 1, characterized in that the devices for air treatment in the roof are arranged are that the air inlet into the device for air treatment via channels above the windshield and the exit takes place by means of air distribution nozzles which are arranged regularly distributed over the width of the windshields and which are also located above the windshields. 3. Device according to claims 1 and 2, characterized in that the channels for outside air and for conditioned Air transversely to the direction of travel above the two windshields are arranged parallel to each other at the same height and that the device for air treatment is arranged laterally in the roof area. 809849/0201 - 2 - daim 11 k. Device according to claims 1 and 2, characterized in that the duct for the air inlet is above one of the two windshields, that the air conditioning device is arranged parallel to this supply air duct and that the conditioned air reaches the top of the two via ducts running in the edge area of the roof Windshields is headed. 5. Device according to claims 1 to U , characterized in that a switchover flap is provided in each case for the optional or simultaneous application of the front and / or rear side following the air treatment device in the air duct. 6. Device according to claims 1 to 5, characterized in that that at the air inlet or can occur at the Luftein in the processing device upstream filter are. 809849/0201