US1782058A - Radiator tank - Google Patents

Description

Nov. 18, 1930. w. G. CAMPBELL RADIATOR TANK Filed Oct. 31, 1928 Inventor W/Zape ('a m azeiZ Patented Nov. 18, 1930 UNlTED STATES PATENT OFFICE.-

RADIATOR TANK Application filed October 31, 1928. Serial No. 316,325.

.The present inventionrelates to radiators for the cooling system of internal combustion engines and more particularly to a tank associated with the radiator and has for its principal object to provide a tank construction through the use of which waste due to evaporation of the fluid in the cooling system is prevented. I

A further object of the invention is to provide a tank embodying a pair of liquid chambers disposed in superposed relation with communicating means therebetween and means connecting the lowermost chamber is disposed out of the path of-circulation of the fluid whereby to maintain said upper chamber at a lower temperature for condensing any vapor generated in the lower chamber and thus serving to return the fluid to said lower chamber in its liquid form.

A further object of the invention is to provide an apparatus of this character which is automatic in its operation and which functions without the necessity of employing control valves or other moving elements.

Other objects and advantages reside in the special construction, combination and arrangement of the various elements forming the invention as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to parts throughout, and in which:

Figure 1 is a vertical sectional View through a conventional type of radiator showing the tank mounted in position with respect thereto,

Figure 2 is a fragmentary vertical sectional view taken substantially along a line 22\ of Figure 1, and

Figure 3 is a horizontal sectional view through the upper tank chamber taken substantially along a line 3 3 of Figural.

Referring now to the drawing in detail,

- wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates a radiator core of conventional construction and sofa type generally employed or for use with the w1th the water circulation system of the en-, gine while the uppermost of said chambers like h an overflow pipe l5which extends upwardly internal combustion vehicles. I

The tubes 6 of the radiator are arranged in direct communication with a tank 7 sup-- ported at the upper portion thereof. As clearly illustrated in Figures 1 and 2 of the drawing, the tank includes an upper liquid chamber 8 and lower liquid chamber 9, the present embodiment of the invention showing the upper chamber constructed of a larger area than the lower chamber.

The chambers 8 and 9 are separated by a horizontal partition 10 from which a neck 11 depends downwardly into the lower chamber 9. The lower edge of the neck 11 terminates substantially below the horizontal plane of the partition and while the neck provides direct communication between the respective chambers, it will be apparent that upon the filling of the tank that air will collect in the upper portion of the lower chamber above the lower edge of the neck and. will be prevented from escaping from the lower chamber as long as any liquid remains in the upper chamber.

The lower chamber 9 is provided with the usual pipe extension 12 connecting with the water jacket of the engine, said pipe extension entering the lower chamber at a point below the horizontal plane of the lower edge of the neck 11 as clearly illustrated in Figure 1 ofthe drawings.

The top of the tank is provided with the usual filler neck 13 and radiator cap 14 and engines of motor driven through the tank terminating at its upper end in the neck 13. It will be apparent from the foregoing that during the operation of the engine that the water or other cooling fluid used in the radiator will enter the lower chamber 9 from'the engine through the pipe extension 12 and return to the engine through the tube 6 and return pipe 16 at the bottom (1301171011 of the radiator.

A baflle 17 is placed within the lower chamber 9 in association with the intake end of the pipe'12 for distributing the fluid toward each end of the chamber 9. It will be apparent that the upper chamber 8 is out of the path of the circulation of the fluid and conse- 193 quently will be maintained at a lower temperature than the fluid in the lower chamber 9. The air space in the upper portlon of the lower chamber 9 assists in maintaining this difference in temperature. Should the fluid in the circulation system become heated to such an extent as to cause vaporization, the vapor will be trapped in the air space at the upper portion of the lower chamber 9 and prevented from escaping. The heated fluid in the lower chamber has a natural tendency to rise and will pass through the neck 11 and upon contact with the liquid in the upper chamber 8 will operate to prevent vaporization in the upper chamber. Evaporation of the fluid within the circulation system is thus prevented and the liquid contained in the upper chamber 8 serves to maintain the liquid in the circulation system at a normal level.

It is obvious that my invention is susceptible to various changes and modifications in construction without departing from the spirit of the invention or the scope of the appended claims, and I accordingly claim all such forms of the device to which I am entitled.

Having thus described my invention, what I claim as new is:

1. A radiator tank having a horizontal partition formed therein whereby to provide upper and lower chambers within the tank, said upper chamber being provided with a filler cap and said lower chamber being interposed in the fluid circulation system of the radiator and a neck depending from said partition with its lower edge'terminating in said lower-chamber below the hori zontal plane of the partition whereby to provide an air space in the upper portion of said lower chamber at the under side of the partition, for trapping the vaporized fluid created in said lower chamber.

2. In a radiator of the class described, a plurality of liquid chambers arranged in superposed relation, a neck providing communication between said chambers and terminating in the lower chamber intermediate its top and bottom walls whereby to form an air space in the lower chamber when both chambers are supplied with liquid, said lower chamber being interposed in the circulation system of the radiator and said upper chamber being disposed out of the path of circulation of the fluid in said system.

3. In a radiator of the class described, a liquid circulating chamber and a non-circulating liquid chamber and a neck connecting said chambers and arranged to provide a closed air space within the circulating chamber and coextensive with the surface area of the liquid therein when both chambers are supplied with liquid.

4. A tank for radiators having a lower liquid circulating chamber and an upper non circulating liquid chamber and a neck depending fromsaid last named chamber insaid first named chamber and terminating below the horizontal plane of the top of said first named chamber whereby to form an air space at the upper portion of said first named chamber for trapping vaporized fluid created in said first named chamber.

In testimony whereof I afiix my signature.

WALLACE G. CAMPBELL.

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