DE2026489A1 - System for air conditioning the interior of motor vehicles - Google Patents

Description

Description of the patent application for the J ¹ IAT Societa per Azioni ,. Turin _} Italy

"System for air conditioning the interior of motor vehicles"

The invention relates to An.la.gen for air conditioning of the interior of motor vehicles of the type with a heating device, which with hot water from the cooling circuit the motor is fed and a large number of orifices -for the extraction of air outside and for the introduction of warm or optionally cold air in the interior of the motor vehicle.

In the following description, "interior" means the passenger compartment or the driver's housing of a motor vehicle. The well-known air conditioning installations enable

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borrowed the temperature of the air through various systems to regulate, which is introduced into the interior: air conditioning air is then distributed to various parts of the interior, with this air mainly coming from the defroster nozzles the windshield and one or a plurality of insertion openings or mouths. So you can make only one regulation of the temperature of the air entering the interior of the vehicle, without the individual passengers being able to intervene in any way with regard to this regulation.

Incidentally, at the ends of the instrument panel are sometimes Blow-out openings provided for introducing fresh air into the interior, which is intended for defrosting the side windows can be.

According to the invention, the air conditioning systems of the type mentioned are to be improved to include two or more separate controls to be able to make the temperature of the air, which is introduced at various distribution points in such a way that each passenger can selectively and independently of the others regulate the temperature of the air leading to the exhaust opening interests him personally, is guided.

Another object of the invention is an air conditioning system of the type mentioned, which allows hot or cold air at various points ~ in the interior of the motor vehicle the possibility of separate regulation of the temperature to distribute, which is also of simple, robust, economical construction and easy and practical to operate leaves.

The main feature of the conditioning system according to the invention lies in the fact that it has a central air mixing device

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tuns includes: an eadiator element, a fan and ■ a variety of "movable flaps that are capable of the total air throughput that gets into the interior of the motor vehicle, the air throughput that passes through the radiator element 'strokes, as well as regulating the air flow rate that sweeps past the outside of this element, said central Device in connection with adjustable insertion openings located near the rear seats at floor level, with two rear air intakes, which are provided on the sides of the central device, with two openings for defrosting the windshield and with two side ducts at which two other mixing and introduction devices open, which are arranged at the ends of the instrument panel and directly through air supplies from are fed externally, these lateral devices are provided with adjustable insertion openings, their throughput can be reduced.

An example embodiment of the invention will now be explained in more detail with reference to the accompanying drawings, in

Fig. _{1r is} a perspective schematic representation of a system for air conditioning the interior of motor vehicles according to the invention;

Pig. 2 is a schematic perspective illustration of a detail according to FIG. 1.

A heating group with two independent 'circuits for warm and cold air is denoted by Λ. This group is connected to an air supply 2a from the outside, the delivery or throughput of which is interrupted by an adjustable flap 2

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or is reduced, which increases the general air flow rate or " controls the general amount that enters the air preheater and is controllable by a lever 6 that is in place an Irägers 32 is located, for example by a device is formed, which is located near the tunnel in the interior of the vehicle. Another movable flap 3 allows it to reduce the air flow that is to sweep over a radiator element 4, which is connected to the cooling circuit of the This flap is controlled by a second lever 7 located on the side of the first lever and is able to control a tap in the last part of its way to interrupt the flow of hot air, who goes to the radiator element «. Cold air entering the air preheater 1 in the direction of arrow A is divided into two streams B and 0, one of which the radiator element penetrates and the other outside of this sweeps past to reach a fan 5, which is located below and the purpose of which is to mix the two air streams and bring them into the interior of the motor vehicle to direct.

The storage or the jacket of the air preheater is connected by means of two lines 8 _S that of the Qhinnels of IPahr stuff interior are arranged longitudinally, connected to two adjustable Äusblasöffnungen 8a which are arranged in the vicinity of the rear seats to air-conditioning air (arrow D) against the legs of the To guide passengers who are sitting on the seats "The storage of the central preheater is also directly connected to the interior of the vehicle by means of lateral outlet openings 10 which are provided with grids 9 and which are oriented towards the passengers' legs, which occupy the front seats (arrow B). Part of the air conditioning air is directed (arrow 1) towards two upper exhaust openings 11, which are located at the bottom of the windshield »um

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ensure that they are defrosted. Two swing flaps 13 ', which are controlled by a third lever 12, make it possible to control the air flow directed towards the defroster in such a way that part of this air is branched off and sent to the lower openings 8a and 9. Two other lateral lines 16 going from the central Luftvorwärmungskörper from the rest of which are directed against two distributor and mixer groups 14 · and located at the two opposite ends of the instrument panel .- 31st

Each of these groups is represented by a casing of box shape 14-a formed, which is equipped with a connection piece 16 a for connection to the central air preheater and front openings 15 is via the outside air according to the direction of the Arrow A 'is introduced.

Each of the two groups mentioned is thus in a state that enables a mixture of warm air and fresh air independently of the mixture created in the central air preheater. The two flows of cold air A ¹ and warm air G can be reduced and by means of a swing flap 1? which is carried by a vertical pivot pin 18 which is provided with a lever 19 connected to a connecting rod 20 with an operating button 21.

In the direction of flow behind the front openings 15 there is a check valve, which is formed by a flexible partition 22 which opens inwards when the cold air flow A ¹ , which enters from the front exhaust openings 15, predominates and closes when the warm air flow G, the pressure generated by the fan prevails outside the central preheater

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A divider opening is fixed to the. Housing or jacket 14-a connected and oriented towards the interior of the vehicle and comprises a (shrink) ring 23, in the interior of which under spherical .liger Coupling a movable cap or a press ring 24- is arranged j which is arbitrarily adjustable or orientable, to send the air conditioning air H in the previously selected direction. This cap 24 has a plurality of radial rods 25, which carry a central socket 26 in the a button 27 is pivotably mounted, which is able to by means of bevel gears 28 and 29 to control the simultaneous oscillation of the two deflectors 50, which in opposite Arrangements are arranged around a single transverse axis of the opening in such a way that the air flow is reduced as desired or interrupted coming from each of the side mixer devices.

The air conditioning system described thus makes it possible to introduce mixed air at various points in the vehicle interior, with the possibility of a separate control of the temperature of the air conditioning air at different of these Make places and orientate the direction of the air jets with maximum accuracy according to the need.

With a view to brevity, the invention has been made only on the basis of a few embodiments explains j changes and Changes are within the scope of the invention »

Claims

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Claims (4)

Patents are respected ■ - 1.] System for air conditioning the interior or the ■ gastraumes of motor vehicles, characterized by a central mixer device (1) for air, with a Kadiatorelement (4), a fan (5) and a plurality of movable flaps (2 and 3) _} which are able to the general air flow rate (Δ ), which enters the interior of the motor vehicle to regulate the air flow rate (B) that goes through the Eadiatorelement (4) and the air flow rate (G) that is guided outside this element,] the central {[device in connection with two adjustable injection openings "(8a), which are located near the rear seats at floor level! Ehtfrofen the windshield j and two side lines (16) which open into two other inlet and inlet devices (14), which are arranged on the sides of the instrument panel (31) and directly through outside air extraction (15 ) are fed, these lateral devices being provided with orientable insertion openings (24). 2. Plant according to claim 1, characterized in that the ^ central preheater (1) is provided with a swing flap (2) which is able to control the general air flow (A) control that enters the passenger compartment, as well as with a second flap (5), which is able to control the air flow (B), which penetrates the radiator element (4), and is provided with other movable flaps (13), which in are able to control the air flows Q ?, D and E), which> (on each of the defrosters on the windshield (11) lower openings (Sa and 9) of the vehicle interior these flaps by movable levers (6, 7 tuid 12) are controllable, which are located in one of the vehicle interior " 109826/0845 " ⁸ " accessible position, with one of these levers (7) also controls the position of a tap or valve that enables the flow of hot water to flow into the radiator element prevent or reduce. 3. Plant according to claim 1, characterized in that the lateral mixing and Lüfte ^ guide devices (14) each have a box-shaped jacket (14a) with an outside air extraction (15) and one by means of a line (17) to the central preheater (1) connected internal extraction (16a), which is connected to the central preheating device (1) by means of a line (17), an adjustable flap (17) being arranged between the two openings and this opening through a vertical pivot pin (19 ), which is connected to a connecting rod (20), which makes it possible to move the position of this flap in order to vary the mixture of warm air and cold air, since the front opening (15) is provided with a non-return valve, which through a flexible wall (22) is formed, which is able to rise when the air inlet (A ¹ -) prevails from the outside and to close when the air from the central The air inlet (G) originating from the preheater (1) prevails. 4. Plant according to claim 3, characterized in that 3 ede of the side devices (14) with an insertion opening is provided, which is formed by a solid (shrink) -Eing (23), inside under ball coupling a swing cap (24) is mounted, which centrally carries a swivel button (27) which is able to use bevel gears (28 and 29) to control the simultaneous oscillating movements of the deflectors (30) in opposite directions, which control the air flow (H) into the vehicle interior was introduced" PATENT Attorney * S2Wt®.H.J = INCtCE, DIPL.-ING. H, PIPE «PL-ING. S. 109826/0845 Blank page