US2381251A - Water and oil cooler - Google Patents

Description

Aug. 7, 1945. J. F. BELAIEFF WATER AND OIL COOLER Filed April 17, 1943 2 Sheets-Sheet l [4/ I/E/V ram Jim 55 F/r/m/rBfl 4 IE FF H 7 TO/F/VE y Aug. 7, 1945. J. F. BELAIEFF WATER'AND OIL COOLER Filed April 17, 1943 2 Sheets-Sheet 2 Patented Aug. 7, 1945 amen warns sun on. coons'a James m Belaiei! London. m;-

Orieklewood, land. assignorottwo-thirdstocyril'lerenoe Delaney, and Galley, HmltelL- crleklewood. London. England, a company oi Great Britain Application April 11, 194:. Serial No. 3454 In Great Britain February 2, 1942 4 Claims. l0I.'257--130) This invention relates to water and oil cooler and like combined. heat exchangers and more particularly to apparatus 01' the kind wherein provision is made in the same unit for two or more coolant mediums as for example, a combined oil cooler and water radiator.

.With the orthodox type of oil cooler'great dimculty has occurred in cooling the oil in a very cold or arctic condition, owing to coring phenomena which takesv place in the'oil circulation. By coring of oil in the oil discharge is meant the gradual thickening of the oil at the wall oi the passage due to chilling, this thickening P ressively moving toward the center of the passage until at last all theoilin the passage is so thick that flow is stopped.

Combined water radiators and oil coolers-have been manufactured in the past but have proved very unsatisfactory owing to the fact that certain parts of the oil cooler were in direct contact with the water circulation system. In such c'onstructions there was always the possibility oi a leakage developing between the oil and water circutankse and f.

lation which it was not possible to detect from outside.

It is also known to arrange a water radiator and oil cooler in juxtaposition so that air reaches the oil cooler after passing over the water radi ator, the chief disadvantage of such an arrangemerit being that air reaching the oil cooler has already been heated above normal temperature;

The object of the present invention is to pro vide an improved combined heat exchange apparatus in which some or all of the above disadvantages are overcome.

According to the present invention the passages or the two coolant media are inter-disposed in such a manner that the heat from the one can be transferred to the other or vice versa, the respective passages being at all times separated by an air space.

The air spaces may contain corrugated mem bers and the passages may be formed by corru gated members.

In devices or this character one face oi the device is cooled before the other due either to motion through a cold atmosphere or through the action or a tan in blowing relatively cool air against that understood. reierence will now be made to the accompanying drawings wherein:

Fig. 1 is a front elevation of a combined oil cooler and water radiator.

Fig. 2 is a side view or the device, the water passages being shown in dotted lines.

Fig. 3 is a similar view, the oil passages bein shown in dotted lines.

Fig. 4 is an enlarged detail vertical sectional view of the radiator block illustrating the construction or the water radiator units. Fig. 5 is an' enlarged detail vertical sectional view taken on the line 5-! 011M. 4.

Fig. 6 is an enlarged detail sectional view taken ontheline Hotl'igA.

Fig. 'l is an enlarged detail sectional view taken on the line 1-1 of Fig. 4.

The combined oil cooler and water radiator units comprise a rcdistor block where the oil cooler units a are interposed between the water radiator units 1). The units a are connected to oil tanks c and d, and the water units b to water The oil cooler units and water radiator units are held in spaced relationship by corrugated strips '0. The thickness of the corrugated strips which form these struts will vary with the amount of heat which has to be dissipated either by water or oil. In this particular instance, the water tank is placed atone end and the oil cooler tank at'the other end of the heat exchange unit.

The water tanks e and I, as clearly shown in Fig. 2, are located at the top' of the device and the oil tanks c and d are located at the bottom of the device. The alternately arranged oil cooler units a and water radiator units 12 are spaced apart to provide intervening air spaces and the corrugated strips g are located in the air spaces.

These units a and b are thin, as clearly shown in Fig. l or the drawings, and are rectang lar, as illustrated in Figs. 2 and 3 of the drawings. Fore and aft passages I and 2 are connected by arcuate passages I and 4 and these pa ages may be formed by corrugated members.

The fore and aft passages I, which are contained within the water radiator units, extend downwardly from the water tanks e and I and terminate at their lower ends at a point intermediate the top and bottom of the water radiator units b and they are arranged are series extending from one side edge to the other side edge or the units. The arcuate passages I, which register with the lower ends of the vertical passages i, iform a edges and bottom of the water radiator units 11 series which are spaced from the side 1 toiorminterveningspaceslandthevertical passages at the ends of the series communicate with the space partially surrounding the series or arcuate passages.

The fare and ai't or vertical passages I or the oil cooler units extend upwardly from the oil tanks and terminate intermediate or the top and bottom orvthe units, as clearly shown in Fig. 3 or the drawings. and the arcuate passages 4 oi the oil cooler units term a series which are spaced from the top and side edges of the units a so that the vertical passages at the end of the series thereof communicate with the intervening space I between the series 0! arcuate passages I and the top and side edges of the oil cooler units a. The oil and water circulate through the passages and intervening spaces i and I, as indicated by the arrows in the drawings.

With a combined water radiator and oil cooler according to the present invention no passages of the oil cooler or water radiator are in direct contact. If a leakage occurred on one of the elements the oil or water will leak outside the heat exchange unit .and will easily be detected.

As the water heats up more rapidly than the oil, some heat will be transferred from the water to the oil, thus shortening the. time taken in cold weather for thelubricant to reach the temperature when it can do its work emciently.

Ii the oil temperature exceeds that at the water temperature some heat may beconducted to the water and so help in keeping down the temperature of the oil.

What Iclaim and desire to secure by Letters Patent is:

1. A combined water cooling radiator and oil cooler including a radiator block comprisingwater. radiator units and oil cooler units spaced apart to provide intervening air spaces, a pair of water tanks arranged at the top of the radiator block, a pair of oil tanks located at the bottom or the radiator block, vertical water passages contained -within the water radiator units and extending downwardly trom the water tanks and terminat-- ing short 01 the bottoms thereoi', arcuate pas sages registering with the lower ends oi the water vertical oil passages contained within the bottoms thereof and terminating intermediate oi the top and bottom of the same and comcooler units and extending upwardly fromranged at the top or the radiator block, a pair' of oil tanks located at the bottom of the radiator block, vertical water passages contained within the water radiator units and extending downwardly from the water tanks and terminating short of the bottoms thereof, arcuate passages registering with the lower ends oi the water V passages, vertical oil as contained within the oil cooler units and extending upwardly from the bottoms thereof and terminating intermediate of the top and bottom or the same and r0mmunicating with the oil tanks, and arcuate oil passages registering with the oil passages.

' 3. A combined water cooling radiator and oil cooler including a radiator block comprising water radiator units and oil cooler units spaced apart to provide intervening air spaces, a pair of water tanks arranged at the top oi the radiator block, a pair oi oil tanks located at the bottom of the radiator block. vertical water passages contained within the water radiator units and extending downwardly from the water tanks and terminating short of the bottoms thereof, arcuate passages registering with the lower ends 01' the water passages, vertical oil passages contained within the oil cooler units and extending upwardlyirom the bottoms thereof. and terminating intermediate oi' the top and bottom or -the same and communicating with the oil tanks, and arcuate oil es registering with the oil passages, said series 01' arcuate passages being spaced from the walls of their respective units to provide intervening spaces and certain of the vertical passages communicating with said intervening spaces.

ll 4. A combined water cooling radiator and oil cooler including a radiator block comprising thin, rectangular water radiatorunits and thin, recr oil cooler units spaced apart to provide intervening air spaces, a pair or water tanks arranged at the top 01' the radiator block. a pair 4'. short of the bottoms thereof, arcuate passages 01' oil tanks located at the bottom 01' the radiator block, vertical water s contained within the water radiator units and extending downwardly from the water tanks and terminating registering with the lower ends or the water passages, verticai oil passages contained within the oil cooler units and extending upwardly from the bottoms thereof and terminating intermediate of the top and bottom oi the same and communimunicating withthe oil tanks, and arcuate oil passages registering with the oil passages.

2. A combined water cooling radiator and oil cooler including a. radiator block comprising thin, rectangular water-radiator units and thin, rectangular oil cooler units spaced apart to provide intervenlngairspaces, apairofwatertanksarcating with the oil tanks, and arcuate oil passages registering with the oil passages, said series of arcuate passages being spaced from the walls oi their respective units to provide intervening spaces and certain of the vertical passages communicating with said intervening spaces.

JAMES FRANK BELAIEFIP'.

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