US1981424A

US1981424A - Heat exchange device

Info

Publication number: US1981424A
Application number: US732689A
Authority: US
Inventors: Donald W Lake
Original assignee: Excel Auto Radiator Co
Current assignee: Excel Auto Radiator Co
Priority date: 1934-06-27
Filing date: 1934-06-27
Publication date: 1934-11-20
Anticipated expiration: 1951-11-20

Description

'Nv. 20, 1934. D. w. LAKE HEAT EXCHANGE DEVICE 2 Sheets-Sheet 1 Filed June 27, 1934 fii 0 W 7 z z z 2 F 2 m 4 10 j 5 oz k 5 x Y i v 5 5 Z w 54 8 7M 4/ l n W m w g .fi

Jfzz/wfor: Dorzald ZJZale,

Nov. 20, 1934. D, w A E 1,981,424

HEAT EXCHANGE DEVICE Filed June 27, 1934 2 Sheets-Sheet 2 f? we 72 for: ifioflald ZJZale,

jltbrizeg/s- Patented Nov. 20, 1934 UNITED STATES BEAT EXCHANGE DEVICE Donald W. Lake, Chicago, Ill., assignor to Excel Auto Radiator Company, Chicago, 111., a corporation of Delaware Application June 27, 1934, Serial No. 732,689

3Claims.

The invention relates to heat exchange devices and is particularly adapted to be embodied in heaters for automobiles.

One form of the invention is embodied in a 5 heater for automobiles, the heater being of that type in which the water of the cooling system is employed to heat the interior'of the automobile.

The heater comprises a core having a plurality of tubes between which the air in the automobile Q is circulated by a fan so that there will be an exchange of heat between the hot water flowing in the tubes and the air passing between them.

Heaters of the type described above are generally secured to the dashboard of the automobile,

the conduits whereby the heated liquid is supplied to the core being led through apertures in the dashboard.

Various means have been employed to mount the heaters on the dashboard, the earlier types of mountings being undesirable as they employed a plurality of bolts extending throughthe dashboard. This required drilling a plurality of holes through the dashboard and as that surface of the dashboard beneath the hood of the automobile is generally employed as a a base upon which much of the electrical equipment of the car is mounted, it is difficult to find clear spaces of the proper distance apart through which the holes may be drilled.

In the present embodiment of the invention, a single hole is drilled through the dashboard. The casting or bushing extending through this hole is cored to provide a plurality of passages through which heating medium is led to the radiator core. The ra'diator core and the fan for advancing the air being heated are mounted on or carried by the casting or bushing.

Other advantages will become apparent as the following detailed description progresses in connection with the accompanying drawings in which- Fig. 1 is a vertical longitudinal section taken through a heater embodying the invention, the section being also taken through the dashboard of an automobile;

Fig. 2 is a plan section taken on line 22 of nates generally a heater particularly adapted to be installed in an automobile to heat the interior thereof. The heater 10 preferably comprises a radiator core 11 which, in turn, comprises upper ,and

lower headers

12 and 13, respectively, which communicate with each other through a plurality of tubes 15 of elongated cross-section.

Mounted upon the tubes 15 and extending transversely thereof are a plurality of fins or vanes 16 which facilitate the exchange of heat between a heating medium flowing through the tubes 15 and air which passes between the tubes 15.

The radiator core 10 is preferably mounted in a housing 18 which is provided with a front wall or portion 19 having a relatively large central opening 20. Disposed in the opening 20 are a plurality of adjustable shutters 21. This construction is well known to those skilled in the art.

- The heater illustrated in Figs. 1 to 3 inclusive, is particularly adapted to be connected to the cooling system of the automobile so that hot water from the cooling system will pass into the header 12 and gravitate downwardly in the tubes 15 into the header 13 from whence it is returned to the cooling system.

The means for advancing the heated water through the radiator core 10 preferably comprises pipes or

tubes

24 and 25 communicating with and secured to the

headers

12 and 13, respectively, and communicating also with

passages

26 and 27, respectively, cored in a casting or bushing 28 which projects through the dashboard 29 of an automobile. It will be noted that the

tubes

24 and 25 are bent so that they may be brought into registry with the associated ends of the

passages

26 and 27. Any suitable means may be provided for securing the

tubes

24 and 25 to the casting 28. In this instance, the ends of the tubes adjacent the casting 28 are flared outwardly as at 30 to seat upon frustro-conical surfaces 21 formed upon bosses 32 extending from the casting 28. Nuts 33 secured thereto upon the bosses 32 clamp the flared ends 30 against the frustro-conical surfaces 21.

The casting -28 is provided with an integral nut or flange 35 which abuts against the inner side or surface of the dashboard 29. The outer end of the casting 28 is screw-threaded to receive a plurality of nuts 37, one of which abuts against a metallic bar 40 which abuts in turn against the outer surface of the dashboard 29. The function of the bar 40 is to prevent tilting of the heater in a vertical plane and to assist the flanges U-shaped bracket 42 are secured rigidly to the housing 18 by any suitable means, suchas spot welds. I

The bracket 45 extending between the legs the bracket 42 carries an electric motor 46 provided with the usual fan 48. A metallic strap to secures the motor 46 to the bracket'45.

Screwthreaded into the outer ends of the

pase sages

26 and 27 are tubes or pipes 52 and 53, respectively, to which flexible hoses, not shown, may be secured to connect the heater to the cooling system of the automobile.

It is readily apparent that when the heater is to be mounted in the automobile, it is only necessary to drill a hole 55 through the dashboard 29 to receive the casting 28. If it is so desired, the bolts 42 may extend through the flange or nut 35 -to engage the dashboard 29 and thus prevent rotation of the casting 28 in the dashboard 29.

construction with the heater shown in Figs. 1 to 3, inclusive, and is connected to the heating system of an automobile and supported by the dashboard of the automobile by means substantially identical'with those shown in Figs. 1 to 3, inclu- 40 sive. L

However, in Figs. 4 and 5 it will be noted that the electric motor, which is-provided to advance the air through the radiator core, is designated by the reference character and is mounted on a 45 bar 61 which is'attached directly to a housing function as the housing substantially the only difcan the heater shown in Figs. 4 and 5, and "the shown l to 3, inclusive, so is that the electric motor is carried by the hall ing of the'radiator core instead of by the bracket which supports the housing.

Having thus described my invention, what I claim as new and desireto secure by Letters Pat-- ent is:

1. The combination with a heater of the kind described having aradiator core adapted to be mounted upon the dashboard of an automobile and having conduits connected thereto for conducting a heating medium through said core, of means for supporting said heater on said dashboard, saidmeans comprising a separate member extending through said dashboard and having a plurality of passages therethrough, means for detachably securing the ends of said conduits to said separatemember in communicating relationship with the said passages therein, and a bracket carried bysaid member and supporting said radiator core.

2. The combination with a heater of the kind described having a radiator core adapted to be mounted upon the dashboard of an automobile and having conduits connected thereto for conducting a heating medium through said core, of means for supporting said heater on said dashboard, said means comprising a separate member extending through said dashboard and having a plurality of passages therethrough, means for detachably securing the ends of said conduits to said separate member in communicating relationship with the said passages therein, and a bracket carried by said member and supporting said radiator core, and means carried by said bracket for advancing air through said radiator core.

3. The combination with a heater of the type described having a radiator core disposed within a housing adapted to be mounted upon a dashboard of an automobile, said heater having conduits connected thereto for conducting a heating 115 medium through said core, of means for supporting said heater-on said dashboard, said means comprising a member extending through said dashboard, and having a plurality of passages therewith forming parts of said conduits, a 120 bracket carried by said member and supporting said housing, and means carried by said bracket for advancing air through said radiator core.