DE3317851A1 - Heating and/or ventilating unit for motor vehicles - Google Patents

Abstract

Published without abstract.

Description

"131785

- 3 - (I ^ 755)

Heating and / or ventilation unit for motor vehicles

The invention relates to a heating and / or ventilation device for motor vehicles according to the preamble of the main claim.

Heating and / or ventilation devices of the type mentioned are well known and bind normal standard accessories on motor vehicles. Apart from yourself connecting lines to various air outlet openings in the vehicle interior and various control options, usually in Channel piece of arranged fan and heat exchanger elements, bspu. Regulated on the water side, on the water side regulated with thermostat, water-side regulated with air bypass and air-side regulation basically a Strümungskanalstück before, where the heat exchanger is connected to the engine's cooling circuit.

These devices usually work satisfactorily, although one or the other system hinders

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visible regulation, reaction speed, Καη-struktions- and room layout, mixing of cold and warm air flows (especially with a bypass arrangement) geuiiaae has disadvantages.

In principle, however, all of the systems have the Disadvantage that dust particles and pollutants get more or less unhindered into the interior of the car can, especially in traffic jams and slow convoy movements, which is due to the in the Unfortunately, it usually occurs all too often in high levels of traffic. To counter this, one iat in generally allow the heating and / or ventilation to be switched off completely.

Even if there are no traffic jams and convoys, the said dust and pollutants feeding a considerable and over time (on longer journeys) unpleasant load in particular the nasal mucous membrane.

The invention is accordingly based on the object of the heating and / or ventilation devices To improve motor vehicles that such loads no longer occur or at least can be reduced to a tolerable level.

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This object is with a heating and ventilation device of the type mentioned according to the invention . solved by what is covered in the sign of the main claim. Advantageous further training result from the subclaims.

As far as air conditioning units are installed in the motor vehicle, they may already have filters or filter inserts be equipped that also meet the demands made in themselves, but the purchase and installation of such air conditioning units is relatively expensive and complex and the dust and Separation of pollutants would only be possible through the installation of such devices, as a rule, in particular in temperate climates, are dispensable.

"Active dust and pollutants ¹¹ is understood to mean that the filter is able to absorb dust particles or to filter them out of the air stream without offering too much resistance and furthermore, as far as possible, pollutants and unpleasant odorous substances to filter off the exhaust gases of those driving up ahead and not to allow these pollutants to enter the vehicle interior directly

ORiQiKAL INSPECTED

reduce adverse effect. Suitable active agents for this are commercially available.

In this context, the term "filter" also includes elements that are active in pollutants and odorous substances. Understand stakes.

The filter is advantageous in the form of a filter insert that can be exchanged in the flow channel designed so that you can easily replace this exactly uie the air filter for the engine if necessary and can renew.

Furthermore, the filter is preferably designed in two parts, namely in the form of a dust separation part to be connected upstream and furthermore from a downstream pollutant-active part, which parts are expedient in consideration of Expectable and different "service lives" designed to be interchangeable independently of one another and are arranged. Finally, the filter is preferably in front of or immediately in the vicinity of the inflow opening of the Kanalstückea arranged in order to od built-in parts such as blowers, heat exchangers. Like. To protect against dust exposure.

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The heating and / or ventilation device will follow based on the graphic representation of execution examples nMher explained.

Ea shows schematically

Fig. 1 shows the basic arrangement of the heating and / or ventilation devicesa in a motor vehicle;

Fig. 2,

3 possible designs and arrangements of the filter in the flow channel of the device and

Fig.

k- 5 special embodiments of the filter.

The basic arrangement and design of the device within a motor vehicle according to Fig. 1 does not require any further explanation, since it is generally known and customary.

It should only be mentioned that the filter 3 of course also with regard to the flow in the flow channel piece 2 can be arranged behind the heat exchanger 1, but, as mentioned, the arrangement Before heat exchanger 1 and fan 6, shown tuie, preference is given, especially since the filter on the flow channel 2 is usually more accessible for a replacement than behind it.

According to Fig. 2, 3 the filter 3 is designed as an easily exchangeable filter insert 3 ¹ and additionally according to Fig. 3 in the form of separate parts ^, 5, part k taking over the dust separation and part 5 neutralizing the pollutant gases. The flow cross section of the filter 3 is of course based on the cross section of the flow channel piece 2.

The Fig. ^, 5 show a particularly useful embodiment. As can be seen, the entire filter 3 is arranged in the form of a rotatable partial cylinder in a housing extension Z ^{1 of} the flow channel B 2. Etuia zuei third of the partial cylinder are formed by the dust-absorbing part * ♦ and one third by the pollutant-active part 5.

The partial cylinder can consist of a frame in which the filter parts ^, 5 can be exchanged are used.

The remaining partial cylinder opening 9 is dimensioned so that it corresponds to the cross section of the flow channel 2 corresponds.

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In the position according to Fig. H , only the dust-separating part 4 ^{1 is} effective, while the parts * t 'and 5 are located behind duct panels 2 ". This position is possible, for example, on long car journeys.

If there are traffic jams or slow convoy movements, the entire filter 3 is in position

brought according to Fig. 5, that is, here the dust separating part 1 * ⁿ and the pollutant-active 5 are in the operating position one behind the other. A corresponding manual adjustment with a suitable adjusting mechanism is easily possible. However, an automatic system with a small servomotor 7, which is switched by a pollutant sensor β in the flow duct section 2, is preferred.

In all of this configuration, the dust separation part tf ¹ does not necessarily have to be present, which means that there is the option of pushing one or the other part h ^a or 5 or both parts together into the flow channel 2.

Of course, the parts k ⁿ and 5 could also be planar slides, which, however, required a greater amount of space.

According to FIG. 6, the filter parts can also simply be arranged as flaps in the flow channel piece 2 will.

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In addition, with the embodiments according to FIGS. K to 6, the possibility is given (in FIG. K without the Tsil V), with favorable air conditions (free of dust and pollutants), the filter style k bzui. to bring k ^a and 5 completely out of their normal position and to let the ventilation work without a dBn filter resistance.

As indicated in FIG. 5, the flow channel piece can 2 additionally with one that can be arbitrarily activated Humidification element la be provided, ujqbei the humidifying liquid pleasant odor-active Staffs can be mixed.

The device can of course be installed from the outset when the vehicle in question is manufactured will. But there is also a sense of rearmament further possible, in which case the real spatial structure of the flow channel piece a 2 is at least approximately that current flowBkanalatück of the respective type of vehicle corresponds to a problem-free Allow installation.

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Claims (7)

- Λ - (U 753) claims: 1. Heating and / or ventilation device for vehicles, consisting of a flow channel piece with inflow and outflow opening, thereby marked that in front of or behind the inflow opening at the bzui. in the flow channel piece (2) at least one dust and / or pollutant-active filter (3) is arranged. 2. Device according to claim 1, characterized in that the filter (3) is designed in the form of an exchangeable at least one-piece filter insert (3 ¹ ). 3. Apparatus according to claim 1 and / or 2, characterized in that the filter (3) bztj. the filter insert (3 ¹ ) is formed from a dust separator part (* O, and from a pollutant-active part (5)). k. Device according to Claim 3, characterized in that the two parts (4, 5) are designed and arranged so that they can be introduced into the flow channel (2) independently of one another. 5. Apparatus according to claim 3, characterized in that the filter (3) as part of a manually vein automatically rotatable Cylinder (la) is formed and the filter opening (9) dam the cross section of the flow channel (2) corresponds to, where etua additional thirds the Filtar surface ataubabacheids - and that about different third is schadstaffaktiv trained. 6. BerMt according to claim 5, characterized marked that this is automatic rotatable filter (3) is provided with a sensor-controlled drive (7). 7. GerMt according to claim 3, characterized gs shows that the filter (3) or the parts (^, 5) in Farm of in the flow channel piece (2) by hand or automatically pivotable flaps (9) are formed. B. Device according to one of claims 1 to 7, characterized in that on or in the Strümungskanalatöck (2) a Sea moisture element (la) is arranged.