US1557467A - Radiator - Google Patents

Description

Patented Oct. 13, 1925.

'UNITED STATES PATENT OFFICE.

.ARTHUR 1B. MDIN E, OF RACINE, WISCONSIN.

RADIATOR.

. Original application led May 10, 1920, Serial No. 380,215. Divided and th 1923. Serial No. 630,616.

To all whom t may concern:

Be it known that I, ARTHUR B. MODINE, a citizen of the United States, residing at Racine, in the county of Racine and State of lVisconsin, have invented certain new and useful Improvements in Radiators, of which 4the following4 is a description.

This application is a division ofmy application for improvements in radiators, Serial No. 380,215, filed May 10, 1920, and relates particularly to a type of radiator to be used in connection with cooling systems for cooling the fluid used in the system or dissipating the heat-therefrom.

The invention has among its objects the production of a radiator construction of the kinddescribed that is simple, efficient, attractive, durable, convenient and satisfactory for use wherever found applicable. It

In the drawings, wherein like reference.

characters indicate like .or corresponding parts,

Fig. 1 is a front elevation of my construction as embodied in an automobile radiator;

Fig. 2 is a sectional View taken substan-A tially on line 2r-201? Fig. 1; and

Fig. 3 is a perspective view of a portion of the same.

Referring to the drawings, wherein I have Y illustrated the preferred embodiment of my invention, there is shown a substantially complete radiator in Fig. 1, the construction illustrated and described being particularly intended for automobile use. It is to be understood,h0wever, that although this type of radiator is shown, the construction may I be employed lwherever found applicable in Vmi the transfer of heat or control of temperatures.

A s most clearly shown in Figs. 2 and 3, 1

is application led April 7,

air or the like about thetubes, assistinvr in dissipating the heat and spacing the tu es. It is not deemed necessary that the entire radiator be described, other than to say that 8 represents a plate over the tank parts, which are not shown in detail, 9. the -liller tube, and 10 the brackets or extensions on the radiator frame for supporting and' securing the radiator in place.

The plates 2 are formed with openings therethrough 'to receive the tubes 1, and said plates closely fit the tubes and are secured thereto by soldering or the like so as to elliciently conduct or radiate the 'heat therefor receiving the tubes are formed in a plurality or series, each series of a ertures being spaced apart in alignment rom side to side of the plate. The plates may connect the several tubes or not as may be desired,

but in case they do not connect the adjacent tubes they would co'nsist substantially of thereof over as at 7 so as to strengthen or stifensaid part and also to make it more ornamental and give it a pleasing appear ance. The rear end of the plate may also be extended similarly as at 4, if so desired. The plates may be roughened or corruffate'd, as indicated at 7, between the front and back edges thereof. This may be done either by slightly corrugating the same, or by both knurling and corrugating, or knurlmg and on either or both sides.` This construction causes a turbulent condition or state of the air passing over the plates, and is substantially a secondary-series of corrugations.

I have endeavored to show by arrows how the air as it .passes between the plates 1s deflected back and forth. Each of the plates `from. It will be noted that the apertures has a plurality of substantially parallel series of corrugations extending thereacross from side to side, as shown, each series of corrugations being spaced apart from the adjacent series a distance equal to the spacing apart of the adjacent series of tube-receiving a apertures. j The corrugations 5 are formed zig-zag,that 1s, they are formed with -a series of alternately directed turns or angles and `in. the form shown are V-shaped like chevrons.' `The adjacent oppositely directed ends of adjacent Vshaped corrugations of a series terminate at or lead from the opposite sides of the tube-receiving apertures, these apertures being located at the rear ends of the corrugations; or, in otherV words, the corrugations are so arranged that they are offset tothe front of the line of apertures and intersect the tube-receiving apertures along other half of the V to the adjacent 'tube in the line. These corrugations have a tendency to deflect the assing adir onto, around and about the 'tu s. I also prefer to roughen the plates in the areas extending radiator, the tendency longitudinally of the plates from side to side and arranged intermediate, the adjacent series of V-shaped corrugations to further increase the turbulence of the air passing over the plates.

The air as it passes between the. lates and around and about the tubes is t oroughly agitated and as it strikes the faces ofthe portions 5'is deflected back and forth between the plates, traveling along the grooves or ridges of the V-shaped corrugations transversely of the tubes and between them and also longitudinally thereof.` There is no tendency for an air film to form at the plates and the air midway between the plates to pass through the radiator at increased velocity without serving its purpose, but, on the contrary,-owing to the turbulence or agitation in the air, the air is all utilized for cooling or takin up the heat, so that the heatis dissipated from the tubes to a greater extent. v

The rate of heat transfer is dependent upon the temperature difference between the heated surface and the A circulating air. When using smooth radiating surfaces in a air to lag behind an serve to insulate these surfaces from the main body of circulating air and it is the purpose of the agitation to destroy this film and allow the surfaces to come intocontact with the air at a lower Vtending transversely is for a film of heated h temperature. The result is that the air in contact with the plates and tubes is cooler than it ordinarily would be, -because every particle of air is used for cooling purposes. The plates are inclined, as shown, so that substantially all of the air passing between oreignv cations may be made in the same without,y

departing from the spirit of my invention;

,hence I do not'wish to be understood as limiting myself to the exact form, construcarrangement and combination of parts tion, herein shown and described or uses men" tioned.

What I claim as new'and desire to secure Iby Letters Patent is:

l. A radiator comprising a plurality of tubes, and a plurality of spaced .plates exthereto saidI plates formed in a series of curves between the front and rear edges thereof and provided with' corrugations on said curves, these corrugations extending from side to side of the plates between said tubes to cause an agitation of the air radiator. f

2. A radiator comprising a plurality of spaced plates having a series of undulations thereon from front to rear thereof and having a ertures therethrough, and a plurality of tu extending through said apertures transversely of the plates, said plates havlng corrugations thereon leading from one aperture to the other to agitate the air flowing between the plates.

3. A. radiator comprising a plurality of spaced plates formed into a'series of undulations from front'lto rear thereof and having a plurality of series of 'spaced a ertures therethrough, each series havin t eir cen/ters arranged in a line from side ivo-side of the plates, and a plurality of tubes extending through said apertures transversely of said plates, said plates each having a series of corrugations thereon extending along said line of centers from`one aper- 'secondary series from side to side of the plate between the rst-mentioned corture to the other, and a of corrugations extendin rugations.

4. A radiator comprising a plurality of s aced plates having a series of undulations t ereon from front to rear thereof and aving apertures therethrough and a plurality of tubes extending through said apertures transversel of the plates, said plates having corrugations thereon leading from one aperture to the other to agitate the air owing between thev plates, said corrugapockets passing, through the tions arranged at an obliqueangle to the front and -rear edges of the plates, said plates also havin an auxiliary roughening thereon interme iate said corrugated portions.

5. A radiator comprising a plurality of spaced plates having apertures therethrough, and a plurality of tubes extending through said apertures transversely of the lates, said plates having cppositely direct y corrugations -between' a jacent apertures so that saidv corrugations meet at points not in line With the`line of centers of adjacent apertures.

6. A radiator comprising, a plurality of spaced plates having apertures therethrough, and tubes extending through saidA apertures transversely of the plates, said plates having zig-zag corrugatons thereon extending from side to side and intersecting said apertures.

7. A radiator comprising a plurality of spaced plates formed into a series of undulating grooves and crests from front to rearthereof and provided with apertures through said crests, and a series of tubes extendingy through said apertures transversely of said'plates, said plates having zig-zag corrugations extending from one side to the other thereof and interesecting said apertures at regular intervals at the rear ends of said corrugations.

8. A radiator comprising a plurality of spaced plates having a plurality of series of V-shaped corrugations extending thereacross from side to side thereof, and provided with a plurality of apertures therethrough at regular intervals at the rear ends of ad]acent portions of the V-shaped corrugations so that said apertures extend in a line from side to side of the plate,' said plates also provided `With a series of roughened portions intermediate a pair ofadjacent V-shaped series of corrugations and extending substantially parallel thereto, and a plurality of tubes extending through said apertures transversely of said plates. 4In testimony whereof, I have hereunto signed my name.

ARTHUR B. MODINE.

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