US2887097A

US2887097A - Supplemental cooling system for engine radiators

Info

Publication number: US2887097A
Application number: US535028A
Authority: US
Inventors: Sr Thomas W Huffman; Jr Thomas W Huffman
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-09-19
Filing date: 1955-09-19
Publication date: 1959-05-19
Anticipated expiration: 1976-05-19

Description

May 19, 1959 T. w. HUFFMAN, SR., Erm. 2,387,097

SUPPLEMENTAL COOLING SYSTEM FOR ENGINE RADIATORS Filed sept. 19, 1955 ,y /2 ad 3:

7/lomas ll( Maf/"waff 5f Thomas l. #aff/27a, Jr.

INVENTORS ATTORNEY United Staes Patent 'O SUPPLEMENTAL 'COOLING SYSTEM FOR ENGINE RADIATORS Thomas W. Huffman, Sr., and Thomas W. Huffman, Jr., Odessa, Tex.

Application September 19, 1955 Serial No. 535,028

4 tClaims. (Cl. .12S-41.51) l This invention relates to 'internal combustion engines vand more particularly to an auxiliary cooling `system `for `the radiators of heavy duty engines of this type.

`ly cool the engine for ecient performance Where these "engines are kept in continuous operation for long'perrods `of time. lt therefore becomes `desirable that .the -englnes be equipped with an auxiliary heat exchanger designed'to supplement the conventional cooling system of the engine,

`cooperating therewith but supplied with `watertfor rapid exchange independent from that circulated through the core units of the heat transfer `section of the engine radiator. I The principal objectsofthe inventionare: inst, .to `provide an auxiliary or supplemental coolingcsystem ,for `heavy duty internal combustion engines. Second: .to :provide a heat .exchanger of this type and for the purpose set forth which is at once simple of construction and installation and, third: a heat exchanger whose installation may 4be quickly accomplished and will therefore require but a minimum of shut-down time.

Broadly, the invention anticipates a heat exchanger consisting of a plurality `ofjrelatively parallel tubes formed of metal having high `heat conducting quali-ties andwhich extend through the upper and lower tanks of the `radiator in transverserelationship with the core units thereof, the opposite ends of the tubes being in collective communication with inlet and outlet headers on opposite sides of 'the radiator tanks and through which water from a source separate from that circulated through the conventional cooling system is passed under pump pressure to elfect rapidheat `exchange with the water of the radiator `.surging through the tanks thereof.

Other objects will become manifest in the course of the following description when considered with the `annexed drawing, wherein:

Figure l is a fragmentary front perspective view of an engine radiator showing the invention installed thereon.

Figure 2 is a vertical sectional view of the upper tank of the radiator showing the heat exchanger tubes extending therethrough.

Figure 3 is an end view of the upper tank taken on line 3-3 of Figure 2.

Figure 4 is an end elevational view of one of the headers with the cover plate removed.

Figure 5 is a schematic View showing the radiator and circulatory system including a coolant supply reservoir, and

Figure 6 is an enlarged fragmentary sectional view of one of the headers.

Continuing with a more detailed description of the drawing, reference numeral 10 denotes generally a conventional heavy duty engine radiator equipped with the usual core units 11 or with block or solid type cores which are in communication at their upper and lower ends with the upper and

lower tanks

12 and 13, respec- ..1efsnfsd MsylS, 1.959.

2 tively (Figure 5). The tanks 1.2 and 13 are supported in relation to the core Ysectionby conversely disposed

channel members

14 and 15 between which the core units 11 are assembled, as shown.

It is to be understood thatthe invention is applicable to both `the upper 'and lower tanks 12 `and 13 respectively vbut for purposes Aof 'simplied illustration, the invention is shown in connection with the upper `tank 12 only.

The tank 12, which is of conventional manufacture, is removed from the radiator 10 and a plurality of equally spaced holes 16 are drilled in eachendthereof (Figure 3) `to `accommodate the ends of an equal number of tubes 17 which extend from end to end df the tank, `the ends of the tubes 17 Fbeing sealed'in the ends of the tank to prevent leakage of water from the latterabout the tubes.

A Water outlet header or manifold 18 is `attached'to one end of the tank 1'2 to embrace the open ends of the series of tubes `17. This outlet header is an openended, substantially rectangular casting 19 having an inner flange 2l) (Figure 4) next adjacent the web 21 of the side chan- :nel member 14. A sealing gasket 22 is interposed between the channel member 14 and the end of the tank 12, as shown, and the channel member is provided with an opening 23 to admit water from the 4tubes 17 into the header 1S.

The ange 2t) is formed .with .inwardlydirected projectionsZS, each having ahole 26 adapted to .receive a bolt `27. The boltsi27 pass .through the casting 19 and enter Athreaded. holes 2S (Figure 3) spaced about the area in the end ofthe tank 12 `in which `the holes 16 are drilled to .receive the ends `of theztubes `17. A cover plate 29 is providedfor thecasting 19 and has holes accommodating the bolts `2'7, A .sealing gasket 30 .is interposed .between the cover plate and the outer :endof the casting to make the `outletheader 18 watertight. .For like. reason, rubber seal- `letheader 18just described. The inlet header consists `of a casting 34 Ahaving an .internal ange 35 (Figure 2) .next adjacent the channelmember 15, the latter having an `opening 36 through which water passes `into the .tube `assembly .17 from theheader 33. A sealing gasket 37 iS interposed .betweenthe channelmember 1S Yand the perforated end of the tank 12. The flange 35, identical to the corresponding Iange 20 of the outlet header 18, has openings corresponding to the openings 26 of the ange 20 of the outlet header to receive bolts 39 which are passed through matching holes in a cover plate 4t) overlying the outer end of the casting 34, and for like reason, rubber sealing Washers 40a surround the bolts 39 under the heads thereof, in the manner shown in Figure 6. A sealing gasket 41 is interposed between the end of the casting and the cover plate to prevent leakage of water from the header 33. A flanged opening 42 is provided in the top of the casting 34 to receive an end of a water inlet pipe 43.

The outlet header or manifold 18 has a clean-out drain 44 in its underside and the end of the tank 12 to which the header 18 is bolted has a pair of knock-out plugs 45 (Figure 3) which are adapted to be displaced should the water in the tank freeze.

In stationary installations, such as in oil field use, there is usually a water storage tank, such as tank 46 (Figure 5) adjacent the engine or engines, as the case may be. The suction side of a pump 47 is made to communicate with the tank 46 as by means of a pipe 48,

The water inlet pipe 43 is connected between the pressure side of the pump 47 and the inlet header 33.

From the foregoing it is evident that during operating periods of the engine, water may be continuously circulated by lthe pump 47 from the tank 46 through pipes 48 and 43, through the inlet manifold 33 and tubes 17 into the outlet manifold and back into the storage tank 46 through the pipe 32. The heat of the water in the cooling system of the engine is transferred to the water being circulated through the tubes 17 in the tank 12 of the radiator and is thus rapidly dissipated, keeping the radiator water at a moderate temperature, thus insuring efficient performance of the engine.

It `has been stated that supplemental cooling of water circulated through the lower tank 13 may be accomplished in a manner identical to that just described, if desired. It is also pointed out that the circulation of the supplemental coolant through the tank 12 may be reversed, that is to say, the inlet header 33 may become the outlet header and the outlet header 18 may become the inlet header with equally eective results.

Manifestly, the construction as shown and described is capable of some modification and such modication as may be construed to fall within the scope and meaning of the appended claims is also considered to be within the spirit and intent of the invention.

What is claimed is: v

atively parallel tubes extending through holes in each 1. In an engine radiator composed of multiple core sections and upper and lower water tanks in communication with the core sections, a heat exchanger comprising a coolant inlet header on an end of one of the tanks, a coolant outlet header on the opposite end of the tank, the headers each consisting of an open ended chamber, one end of which embraces a series of holes in the adjacent end of the tank, a gasket between the tank end and the header, a cover plate closing the opposite end of the chamber, a gasket between the header and the cover plate to seal the chamber, a plurality of tubes whose ends are seated in the holes of the tank to elfect communication between the headers through the tank, and means for circulating Water under pressure through the tubes and headers for transferring heat from water circulated in the core sections and tanks to the water circulating through the tubes.

2. In an engine radiator having a core section and upper and lower water tanks through which water is circulated by the engine, the tanks being supported in spaced relation to each other by a pair of conversely disposed channel members connected to opposite ends of the respective tanks, a supplemental cooling system for the engine comprising a plurality of independent and relend of one of the tanks, and about which the circulated water flows, an inlet header" on one of the channel members opposite one end of the tank, an outletheader on the companion channel member opposite the other end of the tank, the channel members each having an opening therein opposite the holes in the adjacent end of the tank receiving the ends of the tubes, and means for passing water through the inlet header, the tubes and the outlet header independently of the water in the tanks and core section to transfer heat from the water of the radiator to the water of the supplemental cooling system.

3. In an engine radiator having a cooling system incorporating an upper and a lower tank and an intermediate core section, a supplemental cooling system comprising a header on each end of one of the tanks, a plurality of relatively parallel tubes extending through the tank and effecting communication between the headers, the headers each comprising an open ended box-like member, one end embracing the open ends of the tubes, a cover plate closing the opposite end of the box-like member, a series of bolts extending through the cover member and the box-like member to secure the header to the tank, and means for circulating water under pressure through the headers and tubes to effect heat exchange between the water of the radiator cooling system and the water of the supplemental cooling system.

4. In a water cooled engine having an air cooled radatorv of limited water capacity and means for circulating water from the radiator to and from the engine, a supplemental cooling system comprising a heat exchanger operatively connected in series with the radiator and having means for additionally cooling the circulating water by indirect heat exchange with a comparatively large amount of water supplied to the exchanger from an extraneous source.

References Cited in the le of this patent UNITED STATES PATENTS 1,296,761 Cammen Mar. 11, 1919 1,307,016 Metzger Jun. 17, 1919 1,948,929 MacPherson Feb. 27, 1934 2,008,164 Wolf July 16, 1935 2,264,820 Young Dec. 2, 1941 2,539,669 Newcomer et al. Jan. 30, 1951 2,591,774 Booth Apr. 8, 1952 FOREIGN PATENTS 312,053 Italy Oct. 19, 1933