US1632994A - Cooling system for automobiles - Google Patents

Description

Jim 21, 1927. 3 ,99

H. S. BURGESS COOLING SYSTEM FOR AUTOMOBILES Filed Nov. 14, 1925 INVENTOR,

ATTORNEYS.

III

Patented June 21, 1927.

UNITED STATES HERBERT S. BURGESS, OI KELLOGG, IDAHO.

- COOLING SYSTEM FOR AUTOMOBILES.

Application filed November 14, 1925. Serial No. 69,028. I

My present invention relates to an improved cooling system for automobiles employing the circulation of water for the exchange ot' heat generated by the internal combustion engine or motor of the motor vehicle.

The invention contemplates the utilization of a reserve or auxiliary Water tank or reservoir in combination with the standard type of radiator, whereby an extra supply of water is immediately available for use in the circulation system when required, and automatically operating means are provided for constantly replenishing the usual water supply as this supply is diminished by the action of evaporation, leaks, or other usual causes.

By the use of the'reserve or auxiliary supply tank, meansare provided in the cooling or water system for use in extremely cold Weather for removing the water supply from the'radiator to the reserve supply tank after the latter has been drained of its contents, and for applying heat to'the water thus removed to maintain the water at the proper temperature to prevent freezing. When required this heated water may be returned to the radiator and cooling system for usual purposes.

The invention consists in certain novel combinations and arrangements of parts in a cooling system of the thermo-cycle type, as will hereinafter be more fully described and claimed.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention wherein the parts are combined and arranged in accordance with the best mode I have thus far devised for the practical application of the principles of my invention.

Figure 1 is a longitudinal sectional View through the hood portion of an automotive vehicle, showing parts of the cooling system in section and illustrating the general arrangement and relation of parts.

Figure 2 is an enlarged detail sectional view at the top of the radiator showing the automatic control device for supplying water to the radiator from the reserve supply tank.

Figure 3 is a sectional detail view of the reserve or auxiliary supply tank, with an electric heater combined therewith, and conneetions to the radiator.

Figure 4 is a detail view of the water pump control device.

In order that the general arrangement and relation of parts may readily be understood I have indicated in Figure 1 portions of a motor vehicle as the engine or motor 1 to be cooled in usual manner and the hood 2. The radiator may be of usual construction with cells as 3, an upper tank 4 and a lower tank 5, and the usual connections to the water jacket of the engine to provide a thermo-cycle type of water circulation for removing heat units from the engine.

In combination with the water circulation system-I employ an auxiliary water tank or reservoir 6 having a water gage 7 and located beneath the cowl of the motor vehicle. The auxiliary tank may be sup ported in suitable manner by or adjacent to the partition or board 8 at the rear of the hood. The auxiliary tank is elevated above the upper tank 4 of the radiator in order that the latter may be supplied with water from the former through a feed pipe 9 from the bottom of the auxiliary tank to the top of the upper tank 4, and a cut off valve 10 is arranged in the pipe 9 to control or regulate the feed or passage of water through the pipe.

The supply of water through the regulated pipe 9 is automatically controlled by a buoyant float 11 in the radiator tank 4 which float is movable with the water level in the tank and controls the valve 12 at the end of the water pipe 9. As the water supply in the radiator is consumed from various causes and thelevel of the water lowers, the floatopens the valve to admit a supply for replenishing the water in the radiator.

To take care of excess water in the auxiliary tank, an overflow pipe 13 is extended therefrom to the upper tank 4 of the radiator and a spring pressed valve 14 opening outwardly is provided between the auxiliary tank and this overflow pipe to allow excess Water to pass through and overflow. This valve however, is normally closed and will serve to hold a light air pressure which may be maintained by the air pump 29. While this spring pressed valve does not hold enough air pressure to effect the action of the float and valve 12 it does insure a supply of water to the radiator at such times as the float valve may be above the level of the water in the auxiliary tank as for instance when the automobile is climbing an upgrade. The air pump 29 is operated from the fan shaft 24 with a usual belt drive to furnish suflicient pressure through pipe 30 to the auxiliary tank for the purpose of forcing water from the auxiliary tank through pi e 13 to the top of the radiator tank 4 in t e event when the bottom of the auxiliarytank is below the top of the radiator tank. Any excess water in the system is taken care of in usual manner through the nipple 14 when the radiator cap 13' is removed or through the usual overflow pipe at the top of the radiator.

Below the auxiliary tank and adjacent thereto is located an electric heater 15 which is provided with the proper electrical connections to the source of electrical supply for heating the water in the auxiliary tank when required. Thus, when the motor vehicle is not in use, and to avoid freezing of the water in the cooling system, the tank 6 may be emptied of its auxiliary supply, the water may be transferred from the cooling system to the auxiliary tank through pipe 17 and the electrical heater energized to supply the heat necessary to prevent the temperature of the water in theauxiliary tank falling to the freezing point. During this time the valve 10 of course is closed, but when the water'is again needed in the cooling system the valve is opened to permit gravity movement of the water back into the system after Which the auxiliar tank may be again refilled with an ad ed supply of water. r

The water supply for the cooling system is poured through the nipple 14" in usual manner and while the cooling system is being supplied with water the auxiliary tank is also filledby the use of a small rotary pump 18 located just to the rear of the lower water tank 5 of the radiator and properly supported. The outlet pipe from the pump as 17 is shown in tangential position and the intake pipe 19 between the lower tank 5 and the pump is shown in concentric relation to the pump. The entire cooling system including the radiator, pump and auxiliary tank may be drained byopening the cock 20 below the lower radiator tank 5.

The water pump is operated when reuired to fill the auxiliary tank, and means or operatin the pump are provided from the belt or an shaft. For this purpose a pulley 21 is coupled with the pump and the elt 22 therefrom passes over the pulley 23 on the fan shaft 24; A clutch 25 of usual construction is provided with actuating means 26 from which a cable 27 passes to the cowl portion of the motor vehicle and a ull knob 28 on the end of the cable is utilized to engage the clutch and operate the pump. An excess supply of water provided for the circulation s stem throu h the ni ple 14 is thus pumpe to the auxi iary tan after the remaining portions of the circulation s stem have been filled with water. By t is means an extra su ply of water is provided for the tank 6 an from this tank a continuous automatically controlled supply of water is supplied to replenish the supply in the radiator and its tanks. By consulting the gage the driver of the car may readily ascertaln the condition of the water supply and the auxiliary supply may be replenished when convenient, in the usual manner for supplying Water to the radiator. Even though the auxiliary supply has been consumed, the driver of the car has the assurance that he has on hand the usual supply of water to carry him to an emergency supply.

Having thus fully described my invention, what, I claim as new and desire to se cure by Letters Patent i's- 1. In a water cooling system the combination with upper and lower radiator tanks and means for filling the upper tank, of an auxiliary tank elevated above the upper tank and having a gravity feed pipe connected thereto, a float controlled valve in the u per tank for automatically controlling the a mission of water from the auxiliary tank, an overflow pipe from the auxiliary tank to the upper tank, a pump and operating means therefor, an intake pipe from the lower tank to the pump and a discharge pipe from the pump to the auxiliary tank.

2. In a water cooling system the combination with the upper and lower tanks of a radiator, of an auxiliary tank for water and an attachment for co-operation with said tank for heating its contents, a gravity flow pipe from the auxiliary tank to the upper tank and automatically operated means for controlling flow of water through said pi e, and a pump having pipes to the lower radiator tank and auxiliary tank.

In testimony whereof I aflix my signature.

HERBERT S. BURGESS.

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