US2918262A - Radiators - Google Patents

Description

Dec. 22, 1959 o. H. BRAND! 2,918,262

RADIATORS Filed Aug. 20, 1956 2 Sheets-Sheet 1 INVENTOR. 0570 H Bran Dec. 22, 1959 Filed Aug. 20, 1956 O. H. BRAND] RADIATORS 2 Sheets-Sheet 2 INVENTOR. Otto H Brand! United States Patent 2,918,262 RADIATORS Otto Heinz Brandi, Koln, Germany Application August 20, 1956, Serial No. 604,882 4 Claims. (Cl. 257-137) This invention relates to certain new and useful improvements in radiators.

The invention has for its primary object to provide a radiator with an enlarged surface in the form of a corrugated sheet with the corrugated radiation surfaces being so arranged and heated as to produce radiation unaffected by adjacent corrugations.

A further object of the invention is to provide a radiator with corrugated radiation surfaces turned towards a room and to be freely exposed therein and have a circulation of the heating medium extending along the corrugations, preferably at the apices thereof. By this arrangement, the radiator has a high heating capacity, in which the greater part of the corrugations of the whole radiator may exert the radiation effect and said radiator being of such size that it may be accommodated below a window sill. To avoid heat losses in a backward direction, the rear side of the corrugated radiator may be covered with insulating material. It is a further object of the invention to provide openings in the depressions of the corrugations of the radiation surfaces for the discharge of additional air supplied behind the heating element and these discharge openings may be formed like nozzles or may be provided with adjustable nozzle inserts.

Several embodiments of the invention are illustrated by way of example in the drawings, in which:

Fig. l is a front elevational view of the radiator comprising a corrugated sheet metal wall constructed in accordance with the present invention,

Fig. 2 is a top plan view of the radiator with the adjacent wall shown in section,

, 3 is a vertical cross-sectional view of the radiator shown in Fig. l and illustrating a tube for the heating medium in the apex of a corrugation of the radiator plate,

Fig. 4 is a front elevational view of a modified construction of the radiator,

Fig. 5 is a longitudinal sectional view taken on line 5--5 of Fig. 4,

Fig. 6 is an end elevational view of the radiator of Fig. 4 with the adjacent wall shown in section,

Fig. 7 is a vertical cross-sectional view of another form of radiator construction arranged in proximity of a window with the radiator plate of corrugated design and with air openings in the valleys of the corrugations,

Fig. 8 is a cross-sectional view taken on line 88 of Fig. 7,

Fig. 9 is an enlarged fragmentary sectional view of the radiator of Fig. 7, showing an adjustable nozzle mounted in one of the air openings,

Fig. l0 is a detail sectional view showing the frictional and resilient engagement between the walls of the apex of the radiator plate corrugations with the heating tube, and

Fig. I1 is a detail sectional view similar to Fig. 10 and showing knobs or projections carried by the walls of the radiator corrugations adjacent the apex for holding the radiator plate onto the pipe sections.

The radiator according to the invention essentially consists of a radiation surface and of tubes or channels receiving the heating agent (warm water, hot water, vapor). According to the invention as shown in Figs. 1 to 3, the radiation surface comprises a corrugated metallic sheet 1 which is supplied with heat by the circulation of the heating medium. As shown in Figs. 1 to 3, a suecession of tubes for the heating medium consisting of the collecting pipes 2 and 3 are respectively arranged adjacent the upper and lower ends of the corrugated sheet 1, as well as of tubes 4 which are carried outwardly from the collecting pipes towards the radiation sheet 1 and-are obliquely connected with the collecting pipes at their upper and lower ends as at 4a and 4b. The tubes 4 extend parallel to the front apices 1a of the corrugated sheet 1 so that the full heating capacity is accommodated within these apices. Since only circular cross-sections are provided for the collecting pipes and tubes, this construction is applicable also for highest pressures.

The corrugated radiation sheet 1 is arranged in such a manner that the radiation emanating from each corrugation is for the greater part unimpaired by the adjacent corrugation, whereby an effective radiation surface is obtained. The spacing of the apices from one another depends on the depth of the corrugation. Preferably; the corrugations are largely spread apart.

For normal pressures of the heating medium, the principle of a radiator with enlarged radiating surfaces; as shown in Figs. 4 to 6, may be realized in a more' simple and cheaper manner, and wherein there is shown a corrugated plate 5 covered at the back by another plate 6. Both plates are welded with one another along the lines of contact. In this manner there are formed vertical channels 7 for the heating medium. At the top and bottom are channels 8 and 9 of triangular cross section which are distributing and collecting the heating medium and are in open comunication with the channels 7. In this embodiment of the invention, not only the front apices 5a, but all surfaces of the corrugations are contacted by the heating medium.

In the form of radiator shown in Figs. 7 to 9, the heat emission by convection is not obstructed since the corrugations extend in vertical or nearly vertical direc tion. Therefore, the heated air may discharge in art upward direction to catch the cold air near the window: For increasing the heating capacity, the radiator may be combined with a supply of additional air. In the valleys 1b of adjacent corrugations of the sheet 1, there are provided air discharge openings 10 through which additional air may be blown into the room. Such additional air may for example be blown through opening 11 into chamber 13 formed by radiator 1 and cover 12. The additional air discharges from chamber 13 on the rearside of corrugated heating surface 1 through openings 10 into the room.

The discharge openings 10 may be formed so that the upper edge 10a of the opening is turned towards the chamber 13 and the lower edge 10b is turned towards the room. In this manner is obtained an opening discharging in a certain direction (Fig. 9). A nozzle 14 may be inserted into opening 10 and adjusted for blowing the air in the desired direction.

The air fiows through openings 10 in the direction indicated by arrows 15. The air passes a certain distance in the valleys 1b before discharging through openings 10 in the radiator. Simultaneously is thereby obtained an injection of air from the room (secondary air) in the direction of arrows 16 as shown in Fig. 7. Any number of openings 10 or nozzles 14, respectively, may be provided. Suitably, they may be arranged in one or more horizontal rows. The discharge openings may be provided in each valley or only in selected valleys of the corrugations spaced from one another a certain distance.

The attachment of the corrugated sheet at the successive tubes is suitably effected in such a manner which renders possible an easy and simple assemblage of the radiator. Preferably, the apices 1a are snappingly gripping round the tubes 4. As shown in Fig. 10, the front apices 1a of the corrugated sheet 1 are adapted to the diameter of the tubes and are embracing at least the half circumference thereof. Preferably, the curvatures of the apices are formed in such manner that the corrugated sheet is applied upon the tubes by force and is held there by internal tension. The radiators are suitably galvanized at the contact surfaces whereby a good heat conducting connection is obtained between the tubes and the corrugated sheet.

In the embodiment of the invention according to Fig. 11, the apices 1a embracing the half circumference of tubes 4 are provided with longitudinal projections 17 as, for example, beads or the like which grip the tube from the back. The attachment of the corrugated sheet 1 is effected by means of a snapping connection.

In still another form of assembly, the tubes 4 may be welded or galvanized to the corrugated sheet.

What I claim is:

1. A radiator assembly comprising a vertical wall of an area to be heated, vertically spaced upper and lower manifolds adjacent said wall for the supply and return of a fluid heating medium, a plurality of transversely spaced coplanar vertical conduits connected between said manifolds, said vertical conduits including connecting portions disposing the vertical conduits in a plane forwardly of said wall and a vertical plane passing through said manifolds, and a vertically corrugated sheet including alternate inner and outer apices, the outer surface of which being exposed in the area being heated, the portion of said corrugated sheet including an outer apex, a pair of contiguous inner apices defining a substantial radiation surface for heating the area, the outer apices being in close proximity to said vertical conduits and said inner apices terminating adjacent said manifolds, said manifolds lying in a plane diverging from said lower manifold and are contained within a chamber defined by said wall and said corrugated sheet, said corrugated sheet extending parallel to the diverging plane passing through said manifolds, a cover extending laterally from said wall and overlying said chamber, and means providing a pressure source in said chamber for forcing air therein, some of said inner apices including outlet portions pening into the area being heated whereby said radiator assembly will heat the area by means of the radiation surface afforded by the corrugations of the corrugated sheet and convection currents induced by means of the flow of fluid from said pressure source and movement of air in said area.

2. A radiator assembly as set forth in claim 1 in which said outlet portions comprise vertically staggered elongated portions of said inner apices, said vertically staggered portions terminating in upwardly directed openings for expelling pressurized air between contiguous sides of the corrugations of the sheet which form said inner apices.

3. A radiator assembly as set forth in claim 1 in which the outer apices of said corrugated sheet grippingly engage the vertical conduits and the inner apices abuttingly engage said manifolds.

4. A radiator assembly comprising a vertical wall of an area to be heated, vertically spaced upper and lower manifolds adjacent said wall for the supply and return of a fluid heating medium, a plurality of transversely spaced coplanar conduits connected between said manifolds, said conduits including connecting portions disposing the conduits in a plane forwardly of said wall and a plane passing through said manifolds, and a corrugated sheet including alternate inner and outer apices, the outer surface of which being exposed in the area being heated, the portion of said corrugated sheet including an outer apex and a pair of contiguous inner apices defining a substantial radiation surface for heating the area, the outer apices being in close proximity to said conduits and said inner apices terminating adjacent said manifolds, said manifolds lying in a plane diverging from said lower manifold and being contained within a chamber defined by said wall and said corrugated sheet, said corrugated sheet extending parallel to the diverging plane passing through said manifolds, a cover extending laterally from said wall and overlying said chamber, and means for admitting air into said chamber.

References Cited in the file of this patent UNITED STATES PATENTS 1,341,649 Kellogg June 1, 1920 1,744,078 Murray Jan. 21, 1930 1,816,604 Murray July 28, 1931 1,833,291 Kraenzlein et al Nov. 24, 1931 1,887,035 Modine Nov. 8, 1932 2,294,556 Henderson Sept. 1, 1942 FOREIGN PATENTS 44,433 Netherlands Nov. 15, 1938 55,630 Netherlands Dec. 15, 1943 457,376 Great Britain Nov. 26, 1936

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