DE435115C - Radiator with links made of hollow slats - Google Patents

Description

GERMAN EMPIRE

ISSUED OCTOBER 8, 1926

REICH PATENT OFFICE

PATENT SPECIFICATION

- JVi 435115 CLASS 46 c ⁴ GROUP 9

(L 59414 I \ 4ßcl ·)

Alexandre Lamblin in Paris.

Radiator with links made of hollow fins.

Patented in the German Empire on February 10, 1924.

According to the Union Treaty of June 2, 1911, priority is due to this application of the application in France of January 24, 1924.

The present invention relates to the formation of coolers for aircraft and the like. in such a way that they have great adaptability in every respect. the Coolers according to the invention can easily

get any shape. They can be attached to the vehicles that carry them in a wide variety of ways Insert positions; after all, they can be used under the most varied of conditions, both with regard to the air

resistance as well as working on the cooling effect, taking these conditions can change at will within further limits.

The invention relates to a cooler, the members of which consist of hollow fins, in which the water to be cooled circulates, and marked by protrusions is, each of which is penetrated by a channel ίο in such a way that an air through-flow channel is formed; the air flow flowing through this channel brushes the inner walls of the projection and causes it so the cooling of the water circulating in the lamella.

According to a further embodiment of the invention, on the hollow slats provided before cracks are in turn formed entirely or partially hollow so that the cooling water flows through them be in such a way that in this way the cooling effect exerted by the hollow projection causing air to pass through, is increased.

The invention includes further details which are described below and individually or in association with one another.

The drawings illustrate a number of embodiments of the present invention Invention:

Fig. Ι is a partial section of a cooling element of the cooler according to the invention.

Figs. 2 and 3 show in section two embodiments of the invention.

Fig. 4 shows a top view of a cooling element according to a further embodiment.

Figure 5 is a section on line 5-5 of Figure 4; the

Figs. 6 and 7 show, in section, two further embodiments according to Fig. 4 and 5.

Fig. 8 shows in section an embodiment of the invention; the

FIGS. 9 to 12 illustrate, in section, various stages in the processing of the metal sheets forming a cooling element according to FIGS. 4 and 5.

Fig. 13 shows a plan view of the different diameters of the projections which these in the Preserved in the course of manufacture.

Fig. 14 shows a radiator for motor vehicles with a cooling element according to the invention in a vertical cut. Fig. 15 shows a modified embodiment of the cooler according to Fig. 14 in front view.

Figure 16 is a vertical section through another embodiment of the cooler according to Fig. 14} the

Figs. 17 and 18 show two more motor vehicle radiators in a horizontal section of the present invention.

Fig. 19 shows in a section on an enlarged scale a part of the cooler of Fig. 18.

Fig. 20 illustrates, in section, a radiator that is bent so that its protrusions lie on the outside of the cooling element.

Fig. 21 is a section through part of the cooler according to the invention.

You can design a cooling element according to the invention according to Fig. 1 in the way, that one sheet 6 with a relatively long tube 8, the other Sheet but only provided with a short nozzle or shoulder 9.

The two metal sheets 6 and 7 are then pushed into one another in such a way that the tubes 8 enter or pass through the nozzle 9; you then solder these tubes and Nozzles together at their connection points 10. You can see from the Fig. I that the pipe 8 is solid in a large part of its length and that Water that circulates inside the hollow lamella 1 is only cooled by conduction. Here So each projection 2 forms a real air channel, which is constantly from a stream of air 5 is crossed out.

The length of the pipe socket 9 (Fig. 2) can also be increased somewhat, in such a way that that the projection 2 is composed of two parts, namely a part 100, which is solid, and a part 101, which is hollow-walled, with the interior this hollow-walled pipe part freely with the interior of the lamella 1 in connection stands. .

It is easy to see that in part 101 of the air duct 2, the air flow 5 through the pipe 8 comes into contact with the cooling water is. In this way one achieves a much faster and in the part 101 more vigorous cooling of the water as in the part 100 of the air duct 2.

To produce cooling elements according to Figs. 1 and 2, you can also in the way proceed as shown in Fig. 3. First, the two sheets 6 and 7 are given by pressing in the edges or sockets 8 and 9. Then you press into these edges or nozzle 8 and 9 a slightly conical tube 102 and soldered the two edges or Nozzles 8 and 9 and this pipe 102 at their junction at 10.

This embodiment has the advantage of facilitating the machining of the sheet 6, by only having a relatively short pipe socket or approach in this sheet 8 has to produce.

You can of course the length of the hollow-walled part ιοί of the projection 2 according to Increase at will, and in particular so far that you can completely make part 100 leaves and the projections 2 forms completely hollow over their entire length.

Figures 4 and 5 illustrate a cooling element according to this embodiment; the cooling element illustrated in these two figures also consists of a hollow lamella r in which the cooling water of the motor circulates. This blade has numerous \ ^r orsprünge 2, whose free, internal space extends over the entire length of this projection and is engaged with the free inner space of the slat 1 in connection.

Each projection 2 is penetrated by a channel 3 and thus forms a correct one Air circulation duct.

The hot water coming from the engine fills the fin 1 and all protrusions 2. As soon as the vehicle with a radiator with the cooling elements just described is equipped, moves in the direction of arrow 4, the air penetrates freely each channel 3; this air stream 5 therefore sweeps the inner surface of the corresponding projection 2 and thus ensures cooling of the water that circulates in this projection.

In this way, a cooling element is achieved which is lightweight and relatively low space requirement has a very large cooling surface.

The invention relates to the cooling elements described above per se, regardless of how the type of manufacture of these cooling elements is. In addition, however, the invention also relates to various Types of manufacture, with the help of which the cooling elements in a particularly convenient way and can be made safely. - = - ■■

First, as can be seen from Figs. 4 and 5, a cooling element can be used assemble the two sheets 6 and 7, which have the conical pipe sockets 8 and 9, whose axes 14 are at a constant distance 1 from one another.

The pipe sockets 8 of the plate 6 have an apex angle α and the pipe sockets 9 of the plate 7 have an angle β, the angle β being greater than the angle α, as can be seen from FIG.

In order to produce a cooling element according to the invention with the aid of these sheet metal plates, lays down the plate 6 on the plate 7 in such a way that the pipe sockets 8 penetrate into the pipe sockets 9. The edges of the pipe sockets are then connected to one another at 10 by ■ Soldering or the like

In this way, a cooling element is obtained, the front side of which is supported by the sheet metal 6 is formed, has no solder seam. This training makes it easier for the air to enter in the projections 2, because the air streams slide smoothly over the rounded at 11 Edges of the sheet 6 without these having a soldered seam or the like. Furthermore, as a result the fact that no solder seam is provided on the front of the element is, namely where the cooling element is most exposed to impact, the cooling element much less fragile. The cooling element is closed due to the lack of it j such soldered seams and also the whole cooler a much more elegant design ! see.

Fig. 6 illustrates an embodiment of the cooler according to Figs. 4 and 5. Here, each pipe socket 8 of the plate 6 is provided with an edge 12, which over the Edge of the pipe socket 9 is folded over and soldered to it. One achieves that way a much more resistant connection between the two pipe sockets 8 and 9 and the sheets 6 and 7.

You can also see Fig. 7, the two tubes 8 and 9 through approximately cylindrical Extend parts 103. These parts are then pressed together in such a way that they have a Form fillet τ 04. Finally, solder the free ends of this cylindrical extension 103 at 105 together.

The pressing in of the groove 104 has the advantage that the two pipe sockets are secure are interrelated and that fluid losses are also reduced as a result, because this shape makes it impossible to get the tin into the inner cavity 2 penetrates.

You can of course change the profile of the tube 8 as desired, so that each air flow 5 in the corresponding projection 2 with the lowest possible loss of power is passed through. So z. B. Fig. 8 shows a cooling element according to the invention again, in which each pipe socket 8 has the shape of a first tapering, then having expanding tube. So this tube has a cross-section that is very similar to the shape comes close, which the air stream 5 strives to assume. As a result, one avoids any air vortex in that tube.

To the sheets 6 and 7, which are used to manufacture a cooling element according to the invention, preparatory work, as shown in its final form in Figs. 1 to 8 are reproduced, one can expediently proceed in the same way as in the various Work stages on the basis of Fig. 9 to 13 is illustrated.

485115

A smooth metal sheet (Fig. 9) is pressed in such a way that warts 8 ¹ with a diameter d ¹ (Fig. 10) are produced, the axes 14 of which are spaced apart from one another by the distance 1. You then repeat this pressing or pressing as often as you like, z. B. twice such that gradually the diameter of the wart increases, e.g. B. from d ¹ to d? except for d ³ . It is advisable to anneal the sheet after each pressing.

Finally, the bottom 15 is knocked out

each wart 8 ³ off; a sheet metal 6 with pipe socket 8 is then obtained, the axes 14 of which are evenly spaced apart from one another by the constant distance 1.

You edit it in the same way

Sheet 7 with the pipe socket 9 and then forms the hollow lamella 1 by combining the two sheets 6 and 7, as explained above.

The invention encompasses any cooler having one or more cooling elements set forth in the foregoing are described, regardless of how the particular arrangement of these cooling elements is carried out. The invention but also extends in particular to certain special arrangements of the cooling elements, which are described below will.

Fig. 14 shows a motor vehicle radiator, which consists of an upper collector 16 with Connection pipe 17 for the hot water and a lower collector 18 with drain pipe 19 for the chilled water is composed. A hollow lamella 1 with protrusions 2, z. B. as shown in Figs. 4 and 5, is perpendicular between the collectors 16 and 18 built in and is freely associated with these collectors.

A fan 20, which is driven by the engine, is immediately behind the Lamella 1 arranged.

This cooler works in the following way: The hot water coming from the engine passes through the pipe 17 into the collector 16, fills the hollow lamella 1 and its projections 2 and cools down. The cooled water, the density of which is increased, collects in the collector 18 and then goes through the pipe 19 into the cooling jacket of the motor. The arrows 21 indicate this water circulation.

The cold air passes through the inner channels of the various projections 2 and 5t> forms as many air flows 5 as there are projections, all of these projections fill and coat the inner walls, so that in this way a uniform Cooling of the amount of water contained in the lamella 1 is achieved. This Passage of the air is made simultaneously by the movement of the carriage with respect to this Air mass facilitated because the carriage moves in ■ the direction of arrow 4, which also is also supported by the suction effect of the fan. You can of course also use the slat 1 composed of a series of parallel bands or strips 115 that are tight lie next to each other and attached between the two horizontal collectors 16 and 18 j as illustrated in Fig. 15. That way you get a better one Distribution of the water over the individual slats.

If the collectors 16 and 18 are vertical, it is clear that the lamella 1 in must be broken down into strips or bands 115 in the horizontal direction.

^{One can also connect two cooling elements i 1} and 2 ¹ as well as i ² and 2 ² between the two collectors according to Fig. 16, whose air ducts 2 are arranged in the same way. The fan 20 is then installed between the two cooling elements.

The mode of operation of the cooler according to Fig. 16 is exactly the same as that of the cooler according to Fig. 14. The hot water goes through the pipe 17 into the collector 16 and is distributed over the two cooling elements I ¹ , 2 ¹ and i ² , 2 ² , collects in the collector 18 and then returns to the engine when cooled.

The air sucked in by the fan 20 goes through the channels 2 ^{1 of} the lamella i ¹ , is then distributed by the fan via the channels 2 ^{2 of} the lamella i ² and is pressed into them. In this way, a uniform passage of the air through the cooler and also a uniform cooling of the water in the cooler is achieved.

The cooling element according to the present invention can be of various kinds with ease Assume shapes and adapt to all known profiles of coolers. The new cooling element is simply off thin metal plates 6 and 7 assembled together through their pipe socket 8 and 9 (Fig. 4 and 5) are connected in such a way that the two thin sheets 6 and 7 can be bent without difficulty or kink it to give the cooler any shape you want.

So shows z. B. Fig. 17 in a horizontal section a wedge-shaped radiator, which is made with the help of a cooling element 1, 2, the sheets 6 and 7 at 23 correspondingly are kinked. The arrows 25 illustrate the cooling air flows through the element 1, 2 pass through.

In the same way, Fig. 18 shows, in a horizontal section, a cooler which

any, ζ. B. after the radius R, is curved. This cooler has a cooling element i, 2, the metal sheets 6, 7 of which are curved in a suitable manner.

From Fig. 19 it can be seen that the adjacent channels 2 by the rounded Parts 24 are connected to one another, without a solder seam, so that it is easily possible to convert the sheets 6 and 7 around to arch any radius without damaging the sheet metal or a Have to fear breakage of the soldered seams.

You can also arch or bend the cooling element according to Fig. 20, i. H. such that the projections 2 lie on the convex outside of the element; this arrangement allows the baselines of the projections to approach each other as closely as possible, so that a very large number of these Projections 2 can be arranged on the unit area of the lamella 1, wherein nevertheless, the air in the free spaces between these projections 2 can circulate freely can, as the latter protrude freely into the surrounding air and thus an additional cooling effect result.

In the above are described on the basis of Fig. 17 to 20 cooler, which consists of a single cooling element 1, 2 exist; but you can of course also use the same cooler put together several matching cooling elements, one behind the other are arranged in such a way that the air ducts 2 of the various elements are exactly in the extension of one another lie so that their axes 14 coincide (Fig. 21).

Claims (8)

Patent-to sayings: I. Cooler with sections made of hollow fins, in which the water to be cooled circulates, characterized by projections (2), each of which is penetrated by a channel (3) and thus forms an air flow channel in such a way that the air flow flowing through this channel (5 ), the inner walls of the \ ^r orsprunges sweeps and thus causes an increased cooling of the circulating water in the lamella. 2. Cooler according to claim 1, characterized in that the to the hollow Lamellas (1) provided projections (2) in turn formed entirely or partially hollow and through which the cooling water flows. 3. Cooler according to claims 1 and 2, characterized in that the hollow Lamella (1) with the projections (2) formed as channels from two Sheets (6 and 7) with evenly spaced pipe sockets (8, 9) on the two sheets assembled in this way is that these pipe sockets enter into one another when the sheets (6 and 7) are joined together (Fig. 1 to 13). 4. Cooler according to claim 3, characterized in that in the inner Pipe socket (8) a pipe (102) is inserted, which is connected to the two pipe sockets (8, 9) is connected by a soldered seam (Fig. 3). 5. Cooler according to claims 1 to 4, characterized in that the pipe socket (8 and 9) have different vertex angles, such that the two pipe sockets between each other have a free Create space for the water to circulate (Fig. 2 to 13). 6. Cooler according to claims 1 to 5, characterized in that before Solder the edges of the pipe socket (8 and 9) are flanged onto each other (at 12) and fillet-like (104) are pressed in, so that this fillet the Penetration of the solder into the interior of the projection (2) is prevented (Fig. 6 and 7). 7. cooler according to claims 1 to 6, characterized in that the channels (3) for the passage of air through these projections (2) are first after narrow inside and then widen again (Fig. 8). 8. Cooler according to claims 1 to 7, characterized in that the lamella (1) provided with projections (2) is curved such that the projections (2) are on the convex side of the lamella (Fig. 20). 1 sheet of drawings.