DE2347335A1 - VENTILATION DEVICE FOR PASSENGER VEHICLES, IN PARTICULAR COMBAT CARS, SANITARY CARS, COMMAND CARS OR DGL. - Google Patents

Description

D. r L. a S. e e r C. W. e r k public company 24 ü b k Moislinger Allee 53/55

Ventilation device for passenger vehicles, in particular combat vehicles, ambulance vehicles, command vehicles' or the like.

The invention relates to a ventilation device for passenger vehicles, in particular combat vehicles, ambulance vehicles, command vehicles or the like with an air conveying device and an air cleaning device with a gas filter.

It is a filter system for cleaning, preferably for removal known from gases and carbonization products in air-cooled engines, through which the cooling air flow used for heating purposes an internal combustion engine is to be cleaned. It is in a channel upstream and downstream of the engine Air duct a pair of screens in front of and behind the engine, the space between the screens with an absorbent is filled out. Ih dor air ducts are further-

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Towards fans attached that the air in a certain Promote direction. The sorption capacity of the absorbent is known to depend on the amount of water absorbed addicted. The functionality of these agents is therefore soon exhausted if the air supplied is very humid. This is This is the case with humid and warm outside air with a high moisture content. In addition, it then leads into the passenger compartment penetrating moisture into a warm, humid room air which is detrimental to the health of the vehicle occupants. (DBP 822 053).

There is still air conditioning in motor vehicles and fighting vehicles and aircraft are known in which the air to be introduced into the vehicle interior is optionally filtered, humidified and heated or cooled. A device is known in which a disc-shaped humidifier made of glass wool or the like and the disk-shaped heat exploiter are arranged in an upright, disk-shaped container, in the lower one Part of the liquid supplied to the humidifier by wicks made of cotton or the like is located. You can continue to do so to keep away toxic gases in the fresh air filter known cartridges for absorbing unwanted gas or arrange dusty foreign matter. The humidifier has the task of to keep the humidity in the air of the vehicle interior at a certain level in order to keep it dry for the occupants to avoid harmful air. No drying of the air

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is not possible with this system, so that the disadvantages described above occur under certain circumstances can. (DBP 69 ^ 919).

Another known ventilation device for passenger vehicles, in particular fighting vehicles or the like. Consists of an air conveying device and an air cleaning device consisting of a dust filter and a fine filter with switching elements in the connecting line, through which the fine filter can be switched off from the supplied gas flow. With this ventilation device, an overpressure of a purified atmosphere can be created in the interior of the motor vehicle. In certain cases, only the dust filter can be switched on so that the fine filter is not burdened by the air flowing through it and is therefore spared. The valuable fine filter must be protected from moisture, which is the main burden in normal ventilation. For this purpose, a bypass line with switching devices is arranged in this ventilation device. Such a system is expensive and complicated. It requires a larger space that is not available in the vehicle interior. Furthermore, there is the risk that if dangerous impurities suddenly appear in the air flow supplied, the fine filter will not be switched on, so that the vehicle crew is then unprotected. (DAS 1 16 ¹ S ^} \ V \ ).

The invention is based on the Auf Rabe, a Beltlftunpsvor-

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-H-

direction in which at all times the entire filter arrangement while largely protecting the. Gas filter is traversed by the :: u cleaning air. In most cases, the gas filter is connected to a particulate filter. At do Filter

a
together form fine filters.

According to the invention, this object is achieved in that in the direction of flow of the ventilation flow, a dehumidifying device is arranged in front of the gas filter. The invention has the advantage that the gas-filtering material is protected from over-humidification. It therefore retains a ventilation flow with a especially high humidity its sorption capacity. The fine or The gas filter can now be constantly in the ventilation flow without any loss of performance remain. The vehicle occupants are always in the air flow, functional fine or Gas filter protected with the following switch-on process regardless of any other timely warning that would otherwise be required.

In an embodiment of the invention, the dehumidifying device contains a moisture-absorbing agent, such as silica gel. The moisture-absorbing agent can advantageously be regenerated. Through the use of such means a simple, space-saving and economic cleanliness is given dip Kntfeuchtung the ventilation flow to ym <r ^<m% desired value and reach. In addition, there is the advantage that with the TrmMaieri a temperature ver.'inderurir, not r.tatt f! ndei

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Claims 4 to 6 are expedient designs of the dehumidifying device with the moisture absorbing agent. Are advantageous in the ventilation flow at least two interchangeable dehumidifiers arranged. These can be switched on and off with reversing devices or be provided from the BeIUftunkstrom so that they over these reversing devices can be connected to a drying device. In this arrangement, the Dehumidifier with the functional, moisture-absorbing agent flows through the ventilation stream and thereby dried, while at the same time the moisture-laden dehumidifier via the drying device with a separate Airflow is dried and made usable again. There are also two dehumidifiers in a further design Via the reversing devices arranged on both sides, except for the ventilation device with an air intake pipe and a fan connected. A heating device is arranged in the air intake pipe.

In another embodiment of the invention is the dehumidifying device designed as a cooling device. The dehumidifying device can be equipped with a water drainage device be provided. Cooling devices as lint-dampening devices, which can be constructed according to the compressor as well as the absorber principle, are tried and tested in their function problem-free coolant.

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The precipitated water can advantageously be drained off safely. This is also necessary because of it can be contaminated by the pollutants that have dropped out at the same time.

The advantages of the dehumidifying devices according to the invention can be exploited particularly well when in the ventilation flow a sensor is arranged, which is provided with a switching mechanism for controlling the dehumidifying device. The sensor can be arranged in the ventilation flow in front of the gas filter. By the sensor according to the invention und.dem Switching mechanism, the humidity of the ventilation flow passing through the fine filter can be controlled. A value can be chosen that both for the well-being of the vehicle occupants is favorable, as well as ensuring the function of the gas filter. The arrangement of the dehumidifier with the gas filter or fine filters or parts of these filters, exchangeable in a housing, represents an expedient, space-saving design This is very beneficial for accommodation in a narrow vehicle interior.

Embodiments of the invention are shown schematically in the drawing and are described in more detail below. Show it:

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Fig. 1 shows a ventilation device for a chariot with a dehumidifying device that absorbs moisture Contains funds,

2 shows a ventilation device with a dehumidifying device in the form a cooling device.

In both figures, the same reference numerals are used for the same parts chosen.

The outlines of the combat vehicle interior 1, which is used to accommodate the occupants, are indicated by 2. The intake air H for ventilation of the fighting vehicle interior 1 is drawn in through the intake dome 3. The intake dome 5 is provided with a water separator ^c; Mistake. From this the line 6 leads to the ventilation device. In the order in which it flows through, this consists of the coarse dust filter 7 »of the dehumidifying device 8a, the fine filter 9 with the suspended matter filter 10 and the gas filter 11 and the main fan 12. The cleaned air leaves the ventilation device at the outlet:; oi-> tutzon 1 /> in the combat vehicle interior 1. Make its Durohspülunp, the air flows through the Auijlar. valve lh off. The HoIiIf tunp.nvorri cliturif, of the two am; -führunp; r; boii> pie] o differ üic-n in dot ¹ kind dor Kntfouch-

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The dehumidifying device 8a of the device according to FIG. 1 consists of two dehumidifiers 16, 17 combined to form a structural unit 15, each of which contains moisture-absorbing means which can be regenerated in a housing. The dehumidifiers 16, 17 are connected on the one hand via a reversing device 18 to the suspended matter filter 10, the gas filter 11 and the main fan 12 and on the other to an air supply line 20 which is equipped with a heating device 21. On the other hand, the dehumidifiers 16, 17 are connected via a further reversing device 19, on the one hand, to the line 6a and, on the other hand, to an additional air conveyor 2 ^, the outlet connection 22 of which opens into the open. The reversing devices 18, 19 are coupled to one another. By means of the reversing devices 18, 19, the functional dehumidifier with the dry, moisture-absorbing agent is switched into the ventilation flow, while the moisture-laden dehumidifier is dried by the heated air drawn in from the air supply line 20. The moist air is expelled through the outlet port 22. After the humidity in the dehumidifier, which is switched on, has risen to a maximum word, the air flow is reversed with the reversing devices Ui, 10. The line guide arrows ? A, P ^l > lines dio, respective air ducts drawn in the Umsteueroinrichtunpieri 1H, I ^{1 -).}

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The dehumidifying device 8b according to FIG. 2 is a cooling device, in which the too dry ventilation stream below the dew point is cooled. The cooling device works according to the known compressor or absorber principle. That precipitated water is by the pump 26 via the line 27 diverted to the outside. The check valve? _8 prevents that air or water can enter the ventilation device backwards through line 27.

The switching mechanism 29, with a moisture sensor 50 in the ventilation flow, controls the moisture content of the air stream passed through the dehumidifier. The same The device can also contain the ventilation device according to FIG. 1.

When the vehicle engine is running, the heat can also be used for drying Engine cooling air can be used.

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Claims (1)

Claims Ventilation device for passenger vehicles, in particular combat vehicles, ambulance vehicles, command vehicles od. The like. With air conveying device and an air cleaning device with a gas filter, characterized in that a dehumidifying device in front of the gas filter (11) in the direction of flow of the ventilation flow; (tia., ob) is arranged. 2) Belüftungsvonlchtuhg according to claim 1, characterized in, that the dehumidifying device (Ba) contains a moisture absorbing agent such as silica gel. 3) Ventilation device according to claim 2, characterized in that the moisture-absorbing agent can be regenerated. 4) Ventilation device according to claim 2 and 3, characterized in that at least two exchangeable dehumidifiers (16, Yj) are arranged in the ventilation stream. ) Ventilation device / ¹ ; according to claim. ' bis ^ l, ilcuiurch tf "indicates that two dehumidifiers (If, 17) with reversing direction (18, iy) for the optional Kin- and Aur.:;chulton in bi'.w. aurj dem Ventilation, r;:; t, strand rom iü 509815/0516 BATH ORIGINAL 6) ventilation device according to claim 2 to 5 * characterized in that that the dehumidifier (16, -17) via the reversing devices (18, 19) with a drying device (20, 21, 22, 23) can be connected. 7) ventilation device according to claim 6, characterized in that that two. Dehumidifier (16, 17) via reversing devices (18, 19) arranged on both sides, except with the ventilation vorriehtung are connected to an air intake pipe (20) and a fan. ) Ventilation device according to claim 7, characterized in that that a heating device (21) is arranged in the air intake pipe (20). 9) Ventilation device according to claim 1, characterized in that the dehumidifying device (8b) is designed as a cooling device is. 10)! ^ Ventilation device according to claim 9 * characterized in that that the KntfeuchtunpjKvorrichtung (Hb) with a water drainage device; (26,? Γ,;> H) versehon i ;; L. ] 1)! IeJ ürLurif ^r .:; Device; according to claims 1 to 10, characterized by f'okonnx. <.'ic: Ji! iot, ciriu In dom IWiIUf turijir.f.trom ο in feelers (/ H)) in ^ o- :: t, no; r with a ; lohalLw <.? rk (; ⁿ j) liui * irJtrOueruii ^ the versoluMi is. 509815/0516 BATH ORIGINAL " 12) ventilation device according to claim 11, characterized in that that the sensor (30) is arranged in the ventilation stream in front of the gas filter (11). Ventilation device according to claims 1 to 12, characterized in that that the dehumidifying device (8a, 8b) with the gas filter (11) or fine filter (9) or parts of these filters are arranged interchangeably in a housing. 509 815/0516
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