US1791139A

US1791139A - Internal-combustion-engine cooling system

Info

Publication number: US1791139A
Application number: US223629A
Authority: US
Inventors: Alfred F Masury; William B Jupp; Robert G Anderson
Original assignee: International Motor Co
Current assignee: International Motor Co
Priority date: 1927-10-03
Filing date: 1927-10-03
Publication date: 1931-02-03
Anticipated expiration: 1948-02-03

Description

Feb. 3, 1931. A. F. MAsURY ET AL INTERNAL COMBUSTION ENGINE COOLING SYSTEM Filed Oct. 5, 1927 2 Sheets-Sheet 1 Feb. 3, 1931. A. F. MAsURY ET AL INTERNAL COMBUSTION ENGINE COOLING SYSTEM Filed Got. 3, 1927 2 Sheets-Sheet 2 Jupp m. M 1 w mm. o N101: n fwn #A mw Patented Feb.- 3, 19.31A

PATENT OFFICE UNITED STATES ALFRED *F..MASURL WILLIAM B. JUIPP, AND ROBERT Gr. ANDERSON, OF NEW YORK, y1\l'. Y., ASSIGNORS T0 INTERNATIONAL MOTOR COMPANY, 0F NEW YORK, N. Y., A

CORPORATION OF DELAWARE kIN'IERNAL-COMBUSTI0N-E'AYULStIIQ'E COOLING- SYSTEM Applicaton led October 3, 1927. Serial N'o. 223,629.

The present invention relates to cooling systems of the type used on vehicles and is applicable, particularly, to rail car constructions where considerabley heat is to' be dissipated due to the large amount of power which is required to be generated. In constructions of this type it is desirable thatthe outer sides of the vehicles be freefrom projections and have a surface, the greater part of which is unbroken incontinuity.

Consideration of these features in connecg tion with the problem of providing adequate cooling facilities for the engine has resulted in the invention embodied herein, yan object of which is to incorporate in thebodyof a rail car, a radiator which has supplied thereto an adequate current of cooling air, the radiator being suitably positioned within the bod f `,eryfurther object of the invention is to utilize the head wind for cooling the radiator without obstructing the front of the car, the construction being such that when the car is traveling rearwardly, a vacuum will be oreated in such relation to the cooling apparatus that a sufficient reverse current to effect the cooling will be effected.

In addition to the above objects, thepresent invention contemplates embodying with the above features a second radiator to lwhich currents of air are conducted by suitable eductors associated with the exhaust of the engine. These elements are mounted to take air from the side of the car so that the water in the cooling system willv initially flow through the roof radiator to be cooled thereby, and then pass to the second radiator' which is cooled by air drawn from the side of the car by the eductor. v

Other objects will appear asthe invention is set forth in detail and reference will now be had to the accompanying drawings for a more detailed description of the invention, wherein z,

Figure l is an elevationillustrating the- Figure 2 is a side elevation of the device shown in Figure l.

Figure 3 is an elevation of a modiied form` of the invention wherein the side radiators are removed from the sides of the car and constructed to take air from beneath the roof radiators. y v

Figure' 4: is a side elevation of the oonstruction shownin Figure 3. Y

Referring particularly to Figures 1 and 2,

a; indicates an internal combustion engine of desired form provided with a water pump b which circulates cooling water through the engine and outpipe c ando to a roof radiator d. The path taken by this cooling medium is indicated by dotted arrows in the lfigures.y

This radiator is constructed toconform, geni erally, with the outline of the roof of the car f and isA relatively shallow,'the greatest width freezing vmixture'unnecessary The pump b Y is designed to give'insuiiicient head to the water to circulate it through the radiators when the engine' is idling. and, if desired, a by pass may be supplied to permit the circulation of. the liquid without passing through the radiators. In this manner the radiators are protected. during extremely cold weather when'V the flow of the coolingr liquid'is in-Q adequate to prevent the freezing thereof. 'l

This construction insures a `hot. engine at idling speed and prevents the eXposureof the'v watertothe' cold air at low speeds.v

The ear is constructed with a visor g which catches the head wind, when Vthe car is in motion forwardly and forces it into thecham'f` ber 71; beneath the roof radiator d. From this chamber the air passes upwardly through the roof radiator and out at the top of the car as indicated by the solid arrows in Figure 2. lt will be quite apparent that if the car is moving rearwardly the suction created by that portion of the car under the visor will cause the air to be drawn downwardly through the root radiator and its path reversed in this manner. lThe reversed solid arrows indicate this path.

rihe direction of the flow or air through the radiator can be controlled regardless oi' the direction or' movement or" the car by controlling the pressure diiierential between the sides of the radiator. To do this baies are placed at suitable points on the vehicle to create regions of high and low pressure which induce the desired flow.

The side radiator c is cooled by means of an eductor construction which utilizes the Venturi effect of the exhaust gases of the engine. rlhe path of the exhaust gases is indicated by dot and dash arrows, and consists of the pipe z' and z" leading the gases to a plurality of Venturi throats 2 and out through the top of the car 3. About these Venturi throats is a housing j which restricts the iiow of air through the eductor and communicates with an enclosure j about the side radiator e. This enclosure in turn communi- Cates with the outside of the car through openings y'2 and in this manner, cooling air is drawn from the side of the car, through enclosure j, and housing j, and expelled through the top of the car at fig. The path 1 of such air is indicated by solid arrows in Figure 1.

If desired, a jacket lc may be provided for the exhaust pipe 77, and constructed to communicate with the housing y'. With this construction, the exhaust gases also serve to ventilate the interior of the cab and maintain it at a desired temperature.

In orderthat the engine and generator unit may be cooled more effectively, and at the same time a means provided for draining the engine eXteriorly of the car, a drain valve and pipe o are provided, the pipe discharging into a tube b2 secured to the under portion of the car. The tube may, in turn, discharge at any desired location with respect to the wheels or other structure under the car body and at the discharge end scoops b are Jformed, facing in either direction. ln his manner, air will be deilected into the tube b2 and carried into the cab under the power units, thus serving to cool the under portions thereof.

The usual auxiliary heating plant f for heating the car in cold weather is provided with a. coil f2 which connects to a coil f3 in the collecting tanlr By means of valve f4, the collected water may be heated from the plant f in cold weather to aid in starting as well as serving to heat the car when the plant is shut down in seasons of the year when a slight heating may be desirable. rlhis also serves as an additional cooling means ior the water of the cooling system. The water supply is obtained from a reservoir Z through a pipe line Z.

Within one of the pipes oi the upper bank of the radiator a drain pipe m is provided having apertures therein and adownwardly extending end m. in the header and pipe c2.

When the system is being used and water passes through the lower bank of pipes, a suction will be produced in the pipe m due to the resulting flow about the end m. This will remove the air from the upper bank and facilitate its iilling with water. Likewise, when the system is being drained, pipe m will enable air to be supplied to the upper portion thereof and thus permit the water to be drained oil quickly.

,Figures 3 and l show a modified Jiorm of the invention, wherein the side radiators e are moved to the center of the cab, and enclosure j formed in the nature of a` continuation of housing instead of communicating with the exterior of the cab through openings j2, the enclosures communicate through openings js with the chamber h beneath the rooi radiators. ln this construction, if the car is standing still, the roof radiators will be rendered more effective than in the construction shown in Figures l and 2, since the air drawn through the side radiators e will pass through, or under, the roof radiators cl.

The above description sets forth a cooling system which is eilective under all conditions, the visor g serving to catch the head wind and force it through the roof radiator in Figures l and 2, and the root and side radiators in Figures 8 and Ll. llVhen the car is moving in the reverse direction, the vacuum created under the visor will create reverse flow of air and in this manner effectively cool the radiators, and when the car is standing still, the exhaust through the Venturi eductor causes a flow ot' cooling air through the side radiators as well, in Figures 3 and 4E, as through the roof radiators. Although the invention has been described with reference to the speciiic constructions sho vn herein, it is obvious that the parts may be rearranged and designed in other ways, and the invention is not to be limited save as defined in the appended claims.

What we claim is:

l. [i cooling system :tor vehicles comprising means to carry a radiator at the top of a vehicle, means to conduct a cooling medium to the radiator, and a visor formed by a continuation of the top of the vehicle the profile ci the visor conforming to the profile of the top to cause the cooling medium to flow through the conducting means.

2. A cooling system comprising means to carry a`radiator in the roof ot a body of a leo vehicle with the upper side thereof exposed rail car, a radiator, and means for mounting toy the atmosphere and conforming to the profile of the top of the roof, and means to cause cooling air to iiow through the radiator.

3. A cooling system comprising means to mount a radiator on the roof of a body of a vehicle, a visor formed by an extension on the top thereof, means to cause a'flow oi' air through the visor and the radiator, and means to cause the other side of the radiator to communicate with the atmosphere through the root' of the vehicle.

1i. A cooling system for a vehicle comprising a plurality of adjacent radiators disposed in intersecting planes, means to causo air to flow in one path through one of the radiators, and means to cause a flow of air through the other radiator in a different path.

5. A cooling system for a vehicle comprising a roof radiator, a side radiator, means to cause air to iiow through one of the radiators, and means to cause a iowoif air through the other radiator.

6. A cooling systemfor ai vehicle, comprising a plurality of radiators, means to cause air to flow through one of the radiators, means to cause the one side thereot` to coinniunicate with the atmosphere through the roof of the vehicle, and means to cause a fiow of air through the other radiator.

7. A cooling system for a vehicle comprising a plurality of radiators, eductor means associated with the engine exhaust of the vehicle, means associated with the eductor and one of the radiators to cause air to iiow therethrough, and other cooling means to cause air to flow through another oi the radiators.

8. A cooling system for a vehicle, comprisin@` a roof radiator, a side radiator, eductor means associated with the engine exhaust ot the vehicle, means associated with the eductor and one of the radiators to cause air to iiow therethrough, and means to cause air to flow through the other radiator from the outside of the vehicle. v

9. A cooling system for vehicles comprising a roof radiator, side radiator, means to f cause the air to iiow through the root radiator in streams parallel to the vehicle, means to permit the cooling air to flow through the roof of the vehicle, eductor means yassociated with the engine exhaust of the vehicle, and means associated with the eductor and the side 'radiatorv to cause air to flow therethrough. 1

10. In a roof radiator construction for a rail car, a false roof conforming to the proiile of the top Voi the car, a radiator formed therein and communicating with the atmos-V phere through the false roof, and a true roof under the false'rooi forming a ventilatin passage for the cooling air passing throug f the radiator. f

11. .In a roof radiator construction` for a the radiator within the root` with its upper surface exposed to the atmosphere and iiush with the roof line, whereby head resistance offered thereby is eliminated.

5 12. In a vehicle having a roof provided.

with an opening therein, a radiator disposed in the opening flush with the profile of the roof and having its largest superficial radiating surface exposed to the atmosphere. K

13. In a vehicle having a root provided with an opening therein, a radiator disposed in the opening flush with the profile of the roof and having its largest superficial radiating surface exposed to the atmosphere, and means to circulate cooling air through the radiator by movement of the vehicle.

14. 1n a vehicle having a roof provided with an opening therein, a radiator having a long andv short dimension and disposed hori- Zontally in the opening and lush'with the proiile of the roof. 'f

15. In a vehicle having a roof provided,

with an opening therein, a radiator having a long and short dimension and disposed horizontally in the opening and means to circulate cooling airthrough the radiator in the direction of the short dimension.

Vface of greatest radiating extent kis exposed to the atmosphere, and means to circulate cooling air upwardly through the radiator by movement of the vehicle.

rlhis speciiication signed this 20th day of June, A. D. 1927.-

ALFRED F. MASURY. WILLIAM B. JUPP. ROBERT G. ANDERSON.