US2547668A - Heat exchanger - Google Patents

Description

April 3, 1951 c. s. SIMPELAAR HEAT EXCHANGER Filed April 24, 1946 Patented Apr. 3, 1951 UNI/TED STATE HEAT EXCHANGER Clyde S. Simpelaar,'Racne, Wis., assignor to `Modine liiainufacturing Company, Racine, Wis.,

a corporation of Wisconsin A l application-Aprila194e, seria1.No.`664,'544 u I 1Claim. `(Cl.257 '-24 5) in 'I'his invention' relates to'heatmexchangers of n the type which'employs gas,v air as an example, for cooling a non-viscous fluid, such as water.

One of the objects of this invention is to provide a highly eicient heat exchanger of which the parts may be readily assembled and bonded together.

Another object is to provide a core for the heat exchanger composed of spaced rows of nested and bonded together channel shaped nn elements in which the rows are spaced 'apart by marginal spacing members, bonded to contiguous n members and disposed at the sides of the core, whereby to provide fluid passages between the rows of n members.

Another object is to provide partition members between the iin elements for causing the liquid to take a tortuous path through the passages in the core.

Other objects and advantages will appear in the course of this specication and with said objects and advantages in view this invention -consists in the several novel featuresof construction, arrangement and combination of parts hereinafter fully set forth and more particularly dened in the appended claim.

The invention is clearly illustrated in the drawing accompanying this specication, in which:

Fig. 1 is an end elevation of a heat exchanger with the upper part partly broken out, with the lower portion being a sectional view taken approximately on the line I-I of Fig. 2, and embodying a simple form of the present invention;

Fig. 2 is a horizontal section taken on the line 2-2 of Fig. l;

Fig. 3 is a view partly in side elevation and partly in vertical, longitudinal section of the heat exchanger partly broken away; and

Fig. 4 is an enlarged vertical fragmental cross section taken on the line -4-4 of Fig. 2.

Referring to said drawing which is merely illustrative of one embodiment of the invention, the reference character 5 designates the core'of the heat exchanger, designates an inlet header and 'I an outletheader. An inlet pipe 8 opens to the inlet header and an outlet pipe 9 opens :from the outlet header 1.

The core 5 is composed of a plurality of spaced rows of nested and bonded together channel shaped n elements I0. Between the rows of fin elements "IG are spacing members Il disposed at the outer .faces of the core. The iin elements I0 and spacingr members II surround and enclose passageways'lz through which the liquid ows from theinlet header to the outlet header. The

I spacing member-siii are bonded to the contiguous n elements; n., The n elements are each composed of across wall I3 (see Fig. 4) from which extend sidewalls I4 which terminate in oiset edge portions I 5 and provide seats I5a for the next adjacent iin element to seat against.

The channels of all of the fin elements, except one endmost one, face in the same direction and are nested together as shown in Fig. 4. The endmost fin element I6 is of channel formation with its channel facing in the opposite direction. The n element I6 is nestedinto the space between the offset edge portions of the next adjacent fin element, as clearly seen in Fig. 4.

Extending through the spaces between the adjacent n elements are transversely extending spacing members II, one extending from one spacing member I I partway across the space and the other spacing member II extending from the opposite spacing member II partway across the space. These spacing members I1 divide the passages I2 into tortuous passageways whereby the liquid will remain longer in the core than if it were to flow in a straight path from the inlet to the outlet of the heat exchanger.

If desired, the inlet and outlet headers may be formed as parts lof metal side walls I8 that extend from top to bottom of the core and may be formed with flanges I9 overlying the outermost fin elements.

L The reference character 2e designates bonding material by means of which the several parts of the heat exchanger are bonded together. In constructing the heat exchanger embodying the present invention the nn elements are nested together in rows, the spacing members placed between the spaced rows of fin elements and the walls I8 placed upon the sides of the core. The entire structure is then placed in a suitable` furnace and heated to the fusing temperature.

In operation, the liquid to be cooled flows through the tortuous passageways I2 from the inlet header to the outlet header, and ail` flows through the passageways formed by the channel shaped fin elements. The heat in the liquid is conducted from the liquid by the n elements to the passageways therebetween and is carried away by the air flowing through said passageways.

Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the hence, I do not wish to form, construction, arrangement and combination of parts herein shown and described or uses mentioned.

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

In a heat exchanger, a plurality of spaced finned fluid passes, each comprising a series of channel-shaped n elefnents having substantially parallel sidewalls, formed with oiset edge por'- tions, connected to an intermediate wall, said n elements being interlocked with the offset edge' portions of each element overlapping the side walls of the next adjacent element and bonded thereto to form an integral fluid pass, the heat transfer walls of `which are Composed of the respective side walls of the individual elements, each of said heat transfer Wallsflying substantially in a single plane extending substantially parallel to the plane of the other heat transfer wall, with said Walls being connected by a plu- 20 aiity of' longimdinauyY extending fins,.margina1 spacing members between and bonded to adjacent fluid passes at the sides of-the vcore tofform pasthe structure.

CLYDE S. SIMPELAAR.

REFERENCES CITED `The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Na'ne Date 1,759,656 Mantle May 20, 1930 '2,064,928` Lewis Dec. 22, 1936 2,339,284 .Modine Jan. 18, 1944 FOREIGN PATENTS Number Country Date 438,358 France Mar. 15, 1912 478.294

Germany Apr. 28, 1925

Images