US1717716A - Automobile oil cooler - Google Patents

Description

June 18, 1929. c. J. M KINTOSH AUTOMOBILE OIL 000mm Filed April 5, 1927 OOOOOOOOBOOOOOO @OOOOOO 1. o WN QOOOOOO IO o o 000 INVENTOR CH92LS J Mack/fins BY 9 IATTORNEY Patented June 18, 1929.

UNITED STATES CHARLES J. MACKINTOSH, OF OAKLAND, CALIFORNIA.

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Application filed April 5,

' The invention relates to a simple, inexpensive and practical device that can be attached to any type of automobile, and which, by the use thereof, will increase the life and the efliciency of the motor by continuously cooling the oil that is pumped to the bearings.

It is one of the objects of the invention to, first, provide a device of the character described and to mount same in front ofthe fan and radiator of an automobile so as to obtain the highest efficiency possible from the cooler; and second, it is another object of the invention to improve the construction of'oil coolers by providing means that will eliminate any and all chances for as to form and remain in the cooler that wi obstruct or in any way interfere with the cooling area of the device.

A further object of the invention is the pro vision made to keep the outer-periphery of the cooler tight against the radiator and thereby provide a pos tive enclosed opening through the cooler and radiator to the fan.

The invention possesses other objects and features of advantage, some of which, with the foregoing, will be made manifest in the following description of the preferred form of the invention which .is illustrated in the drawings accompanying and forming part of the eci ion.

It is to be understood that it is not intended to limit the invention to the embodiment shown by said drawings and descri tion, as variations may be adopted within'tbe scope of the invention as set forth in the claims.

In the accompanying drawings Figure 1 is a plan of the cooler, with the top late removed, showing the bafile plate that forms a passage-way for the oil to travel around the tubes.

Figure 2 is aside elevation of the cooler showing a portion thereof in section.

Figure 3 is afront view of an automobile showing an oil cooler fastened to the frame thereof and mounted in front of the radiator. Figure 4 is a view showing the relation of the cooler to the pump, the fan and the ra-- diator. j

According to the construction shown, the numeral 5 desi nates a housing, preferably forming a cylin rical chamber'and into which there is provided an outer end plate 6 and an inner end late 7 forming a liquid tight 0011-.

tainer as s own in Figure 2. A luralit of tubes 8 are mounted into the housing, an extend through and are substantially fastened 1927. Serial No. 181,113.

in each of the end plates 6 and 7 and are a11- ranged in series as illustrated, with .space therebetween so that oil may easily travel around the tubes and out ofthe housing. The baflle 9 is preferably made of a single piece of material and is shaped into the form of an involute so as to provide a long continuous. cooling area for the oil to travel in passing through the cooler. The oil inlet 10 is preferably centrally located in theend plate 6 and the outlet 11 1s preferably located 1n the cylindrical walLof the housin 5.

-- A serious problem exlsting in the present v type of oil coolers is the forming of gas by the hot oil, a portion of which, regardless'of the shape of the balfle, remains in the cooler and formsgas pockets therein that covers and obstructs a certain amount of the coolin area of the device. A preferred method of eiminating said gas pockets consists in the rovidin'g of a plurality of holes 12 in the ba e and locating the holes in pocket forming portions thereof so that the as will leak out of said holes 12 and will rea ily-Ipass out of the cooler.

The housing 5 is provided, on the outercylindrical surface thereof, with lugs 14 which are fastened to a pairof substantial braces 15 that are detachably' mounted on the'frame 16 -of-an automobile and adapted to be rigidly secured thereon. As hereinbefore stated, it

is desired to mount the cooler in front of the around the end of the housing that extends toward the radiator, a ring 17, preferably com-" posed of a refracto material, so that portions of the ring 1 may be forced tlght against and .into the radiator 18, thereby forma continuous unbroken opening through the cooler and the radiator, and to the fan.

In Figures 3 and 4, there is illustrated a cooler 17 detachably mounted on an 8311301110. bile. The numeral 19, Figure 4, 1s shown as comprising the pump of an automobile, having a p1pe 20 leading to the suction thereof from the oil sump, and another pipe 21 leading from the discharge of thepump to the .inlet 10 of the cooler. The de v1ce is Preferably mounted on the filltOIIlObllB so that the outlet 11 is in the uppermost position, and a pipe 22, Figure 4, leads "from said outlet to the bearin oil inlet 24:. A drain 26 havm a plu 2 is provided in. the lowermost sur ace of t e housing 5 to allow for draining oil out of the cooler,

certain form of construction and arrange-' ment of parts pertaining to the lnventlon,

From the foregoing it will be observed that by mounting the device in front of the fan and the radiator 18, cool air is drawn through the tubes 8 by the fan 25 and oil from the sump is pumped to the cooler inlet 10 an d into the cooler and travelsaround the tubes 8 and through the involute passage-Way formed by the baffle 9 and through the outlet 11 and the pipe 22 and into themotor bearing oil-inlet 24 providing-the working parts of the motor 28 with cooled oil.

The device is simple, has no working parts, can be mounted on any type of automobile, provides film lubrication, increases the efliciency of the motor by reducing frictional losses, prevents burnt out bearings and increases the -radiationor the cooling area of the motor by providing cooler oil for the working parts.

Having thus illustrated and described a it is to be understood that the improvements may be embodied on any type of oil cooling device, which, obviously, may be built in any suitable manner, the present illustration not being utilized as indicating the only form of construction into which the parts may be made; and it is desired to include in this application for Letters Patent of the United States of America all that comes within the vrange of the invention as set forth in the claims hereinafter mentioned.

What is claimed: 1. A device of the character ,described, mounted on an automobile, comprising a housing; end plates mounted therein; said housing and end plates forming a cylindrical chamber; a plurality of tubes mounted within the chamber and extending into and throu h said end plates; an oil inlet leading from t e oil pump of the automobile to and in said chamber; an oil outlet located in the upper portion of the chamber and'leading to the motor; and a continuous bafile, formin an mvolute passage-way in the chamber rom the inlet to the outlet for allowing the oil to be circulated around the tubes in and through said chamber.

2. A device of the character described, comprising a housing; end plates mounted therein; said housing and end plates formin a liquid-tight chamber; a

mounted within the cham er and extending lurality of tu es involute passage-way in the chamber rom the inlet to the outlet; and a plurality of openings in the battle to allow the gas that forms in said involute passage-way to travel out of the chamber.

3. A device of the character described, mounted in front of the radiator of an automobile; the said device comprising a housing, forming a liquid tight chamber; a plurality of tubes mounted within the chamber and extending therethrough; an oil inlet leading from the oil pump of the automobile to the chamber; an oil outlet leading from the chamber to the motor; a bafiie, forming an involute passage-way in the chamber from the inlet to the outlet; and means for sealing the housing ;to the radiator. v

4. A device of the character described, detachably mounted in front of the radiator of an automobile; the said device comprising a housing, forming a circumferential li uid tight chamber; a plurality of tubes long1tudinally mounted within the chamber and extending through the end walls thereof; an oil inlet, leading from the oil pump of the automobile to one end of the chamber; an oil outlet leading from the circumferential side of the chamber to the motor parts; a baflle, extending from end to end within the chamber and forming an involute passage-Way therein, for the oil to travel around the tubes, from the inlet to the outlet of said chamber; and means for detachably sealing the housing to the radiator.

5. An oil cooler for an automobile; the said cooler comprising a housing; means for conveying air therethrough; means for circulating the motor lubricating oil around said air conveying means and through said housing; the said cooler bein mounted on to the automobile in front 0 f v the radiator thereof, to permit air to pass through the cooler before said air passes through the radiator, for the purpose of preventin the air from being heated by the radiator efore it passes through the cooler.

- In testimony that Iclaim the foregomg I have hereto set my hand this twenty-second day of March, 1927.

CHARLES J. MAoKiNTOSH.

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