US1434853A - Radlator core - Google Patents

Description

C. F. SPERY.

RADIATOR CORE.

APPLICATION -HLED AUG.1,1921.

1,434,853, Patented Nov. 7, 1922.

Fi Q7 EHHRLEE F. EFERY BY Mm @Mm H/S HTTURNEY' Passed Nov. i',Y 192.2.

UNITED STATES CHARLES F. SPEBY, 0F CHICAGO, ILLINOIS.

RADIATOR CORE.

Application tiled August 1, 1921. Serial No. 488,969.

To all 'whom t may concern Be it known that I, CHARLES F. Srnnr, a

citizen of the United States, residing at Uhr cago, in the county of (.ook and State of Illinois, have invented new and useful Improvements in Radiator Cores, of wh-ich the following is a specification.

This invention' has relation to radiators for watercooled internal combustion engines, such as are commonly used on self propelled vehicles.

The object of the present invention is the provision of a radiator core of simplicity, of inexpensive construction, and of great eiiiciency. More particularly my aim is to provide a series of members for mixing and deliecting the air which passes through the radiator core. To this end-1ny invention consists in the combinations and constructions set forth in the following description and indicated in the annexed drawing, of which:

Fig. l illustrates, in front elevation, a portion of a radiator core embodying the invention,

Fi 2 shows a frame unit, a number of whic combine to formi the structure of Fi l,

i 3 is a side elevation of one of the memers which combine to form the water channels of the structure,

Fig. l is a cross sectional view of one of the water channels,

Figs. 5 and 6 are views of one of the deieotors of the device, and

Fig. 7 is a cross sectional view taken substantially on a line A-A of Fig. 5, and

Fig. 8 shows a modified form of deilector.

The type of radiator herein considered is made with a series' of vertically disposed water channels 1, each of which, when viewed in vertical cross section as shown in Fig. 4, presents a water passa-ge of a corrugated contour. In order to obtain such water channels I -have provided a series of frames comprising corrugated strips 2 and 3, and these strips are suitably combined, vas by top and bottom lock seams 4f and 5. W hen two such frames are assembled side by side the water passage of Fig. 4 is produced, and it is noticed that the side 2 of one frame abuts the side 3 of the next followin frame, and that the pair of abutting sides orm the channel.

Fig. 3 discloses the face of the` frame side 2, and' it is to be noted that the shape is the same as the frame side 3, but in reversed relation. Ihe frame side is made from a strlp o f thm metal hexagonally corrugated, and it 1s noticed that the inner apices of the corrugations, 2a, are entirely flat, but that the lnclined surfaces 2b and the out-er apices 2 are provided with depressions, which depressions commence a short distance from 'the edges of the metal strip. The strip 3 is, as stated, similarly shaped in reverse relation, whereby the fiat apex of one is placed opposite the depressed apex of the other, as indicated in Fig. 4, and the water passage is thereby provided, but it is also importanti to note that the hexagonal bands along the edges of both strips Contact, as indicated by the dotted outline 6 in Fig. 4, and these bands are soldered together in order to provide a water tight wat-er channel.

The structure just described is known to the art to provide a very efficient radiator core, of the type referred to, particularly in case means can be introduced whereby the air ovving through the radiator core can be directed toward and thrown against the sides of the water channels. In order to obtain such result I have placed a deflecting member 7 within each frame 2, 3, as indicated in Fig. l. rlhis member is made from a thin strip of sheet metal corresponding in width to the strips 2 and 3, and it is made with corresponding border bands of semihexagonal con-tour, whereby, when the core is assembled, its front and rear faces are caused to present hexagonally cellular shapes, closely resemblin a honey comb.

The deiector 7, see a so Figs. 5, 6, 7, is made with a series of cone shaped protuberances 7b, 7, which are arranged in alternately reversed relation both lengthwise and crosswise of the strip, and rising from the opposite surfaces 7a toa uniform height. As the semihexagonal bands 70, 7t rise on both sides substantially to the same height it is seen that very little of the original surface of the strip remains, and that practically the entire strip is uniformly protruded in opposite directions. This is important to note, because any lack of uniformity has a tendency to distort the metal, making it much more dicult and expensive to roll the strip into the desiredshape. Upon examining Fig. 8 it is noticed that octagonal pyramids 9a, 9b rise from the defiector surface in opposite directions, and that they are similarly spaced. It is not very material whether these protuberances are cone shaped or pyramidal so far as the operation of. the device is concerned, but in both cases 1t 1s important to note the relation which the protuberances take to the corrugated contour of t-he water channels. This relation is best shown in Fig. 1, and it is noticed that t he apices of the cones project into the cavities of the adjacent water channel corrugatlons.

lit remains to be explained wherein the hereinbcfore described shapes and members (zo-operate to increase the eflie-iency of a structure of this character, and for this purpose reference is invited to Fig. Let it be assumed that the left side of this View, where the arrow appears, represent the front of the radiator, and that the vehicle, on which the radiator is -mounted to operate, is in motion in forward direction. Relatively speaking the air is caused to rush through the core from the front. It is now seen that the air which enters through the corrugations, such as the corrugation 10, immediately strikes a cone 7b, whereby it is directed upward and deflected sidewise and thrown against the adjacent channel side. It .may be suggested that the air will also pass downward, and so it may, but as the air commences to absorb heat the moment it strikes the core it is more likely to rise thany to sink. The air passing the said cone 7b is now free to rise diagonally upward through the depression 11 formed between two diagonal rows of cones, and to escape through the semihexagonal passage 12. During this travel the air strikes the second and third cone, and in so doing it is thrown against the channel sides with great force a number of times, whereas, if only diagonal ribs were provided, the air would strike only once and then pass through the diagonal passage of such ribbed member. And it is well known to those versed in the art that the more often the air can be made to strike the channel sides, the more thorough is also the heat absorption.

There is another important feature in this construction. Careful tests have shown me that, where a deflector having diagonal ribs and channels between such ribs are used, the air encounters too much friction and becomes choked, which of course is undesirable. In the structure of my invention, on the other hand, it is seen that the air entering through the passa e 10 may strike both the top and bottom inc ines of the first cone 7b, that it then may pass rearward and strike the bottom and top inclines of the next following` cones 13, 14, finally to strike the rear cone 15 before escaping through the corrugation 16. In other words, the air is free to find its way in any direction it is inclined to How, and as it rushes through the radiator core it' is compelled to strike thev inclined sides of a plurality of cones, and thereby to be thrown wit-h force against the channel sides repeatedly. The more thoroughly the air becomes mixed, and the more often it is thrown against the sides of the water channels, the more efficient the radiator is found to be, hence the importance of the hereinbefore described structure, in which are combined elements to produce these results in a. very thorough manner.

It is necessary to provide means for temporarily retaining the parts of.v the core in alinement during the assembling operation, and prior to the usual soldering process. [for this purpose I have placed elongated ribs 18, 19 on the fiat apices 2a of the channel members 2, and, of course, similar ribs in the members 3. The center row of cones 7b of the delector 7 engage the said ribs of the member 2, and the reversed cones 7 engage in the same manner the ribs of the member 3. In order to indicate this construct-ion it is noticed that the deflector member at the extreme left of Fig. l is shown cut, substantially through the vertical center. It is common to eXtrudel semicircular buttons for locating purposes in structures of this kind, but it is readily seen that the apex of a cone, in this structure, would not find a very secure position between such buttons. Another objection to the buttons, if placed within the bands, is that they do not receive any of the solder used for combining and making the core watertight, and as the metal often is slightly torn in extruding said buttons, it follows that the radiator core will leak at such point. The extrusion of the long rib of the present structure, on the other hand, may be done with safety because the rise of the rib from end to end can be long and gentle. It may be asked why the metal does not tear transversely of the rib, and the answer is, that all sheet metal of the kind used for devices of this kind will stand much bending and stretching across the grain of the metal, but not much longitudinally. For these reasons the long locating ribs of my invention are of importance.

I claim:

1. In a radiator core, the combination with vertically disposed water channels, semihexagonally corrugated, of a deflector mountable between each adjacent pair of water channels, said deflectors having cone y shaped protuberances diagonally varranged .in alternate series in opposite directions and extending into the cavities of the water channel corrugations.

2. In a honey comb radiator core, the combination with a series of frames, each comprising two semihexagonally formed strips of thin metal assembled in spaced relation the adjacent frame sides combining to form water channels, of a deector strip mountable within each frame and having semihexagonal bands abutting the borders of the water channels for the purpose of completing the -honey comb shape, each deflector provided with peaked protuberances disposed in opposite directions and arranged to extend into the semihexagonal grooves of the water channels.

3. In combination, a series of vertically disposed corrugated water channels, and a thin metal defleetor mountable between each adjacent pair of water channels, said deiectors provided with cone shaped protuberances rising from its surface in opposite directions, there being provided in the opposed sides of each pair of water channels series of pairs of horizontally disposed ribs and so placed that the'protuberances arranged along the vertical centerline of the delectors lodge between each pair of ribs.

4. A deector for a radiator core made from a strip of thin sheet metal along the edges of which are provided semihexagonal bands and having, between said bands, al-

' ternate series of peaked protuberances projected in opposite directions in such relation to the bands, that a peak rises directly inside each hexagonal cavity of each band.

5. In a radiator core of the type described,

the combination with corrugated water channels, of thin sheet metal deflectors mountable between each adjacent pair of water channels to complete a honey comb shape, there being, in/a horizontal plane, a peaked protuberance rising directly inside each hexagonal cavity along each edge of a deiector, and a peaked protuberance rising in the opposite direction intermediate to two first named protuberances, the protuberances being arranged diagonally in opposed alternate series extending from a cavity of one edge to the second following cavity of the other edge.

6. ln a radiator core, a series of semihexagonal water channels, a series of intermediate deflectors having semihexagonal edge bands combining with the water channel sides to Jform a honeycomb structure, said deflectors provided, between the said bands, with three rows of projecting cones alternately rightK and left, the middle row engaging Aribs of lthe adjacent water channel projections, th outer two rows projecting into the adjacent water channel cavities.

In testimony whereof, I have hereunto aixed my signature.

CHAS. F. SPERY.

Images