US1840010A - Engine cooling apparatus - Google Patents

Description

Jan. 5, 1932.

C BALOUGH ENGINE COOLING APPARATUS Filed May 2, 1929 2 Sheets-Sheet l gjwue'ntoz (fiarles Balauy/z 1 F 61am,

Jan. 5, 1932.

C. BALOUGH ENGINE COOLING APPARATUS Filed May 2, 1929 2 Sheets-Sheet 2 my a 37m: zmtoc fiarles Balauyfi Patented Jan. 5, 1932 stares; PATENT ersion:

cnanrns :eanorrerr, or cannon, onro. ASSIGNOR 'ro HERCULES MOTORS conrolm- TION', or CANTON, 01110, A oonronn'rron or OHIO ENGINE oooLInG APPARATUS Application filed May'2, 1929. Serial No. 359,862.

My invention relates to apparatus for cooling engines, andmore particularly in ternal combustion engines. Such apparatus usually includes compartments formed in the cylinder block about the engine cylinders for permitting a flow of cooling medium, usually water, about the cylinders.

lhe cooling compartments communicate at one end with a radiator, and the radiator communicates with a pump, which in turn communicates with the cylinder block cooling compartments, thus providing a circulatory passageway for the cooling medium.

As usually arranged, the pump is mounted on a bracket, and the bracket is secured upon the engine at some convenient place. Pipes provide the communicating connection be tween the pump and the radiator, and pipes or rubber hose and clamps provide the communicating connection between the pump and the cylinder head compartments.

The necessity for the bracket increases the cost of manufacture. The hose connections with their clamps, also increases the cost, and must be constantly inspected to avoid 1eakage. Bracket mountings for pumps are fre quently inaccessible, and tend to jar loose. The greater the distance between the pump and the cylinder block compartments, the greater the friction loss caused by the communicating pipe or hose, and consequently the greater the power required for the pump I drive.

The objects of the present improvements include the provision of engine, cooling apparatus in which the foregoing disadvantages of the usual forms, are either obviated or minimized.

These objects are attained in'the present invention, as will hereinafter be set forth in detail, and claimed.

A preferred embodiment of the improvements is illustrated in the accompanying drawings forming part hereof, in which Figure l is a fragmentary transverse sectional view of an internal combustion engine equipped with theimproved cooling appa-, ratus hereof, the pump being illustrated in elevation;

and

Fig. 3, an enlarged view similar to Fig. 1 on another transverse plane, with the pump and walls of the engine providing commuof which is illustrated, withan improved.

pump 16.

The pump 16 includes a combinedsupport and housing 17 having walls forming a rotorcompartment 18, an inlet duct 19 providing; a communication between the pipe end 15 and the rotor compartment 18, and an outlet duct 20 providing a communication from the rotor compartment 18.

A rotor 21 is secured upon a shaft 22 which is journalled in suitable hearings in the support and housing 17, the shaft 22 extending outside of the housing for connection with suitable drive gearing, not shown, on the englne.

. As illustrated the operating parts of the pump comprise a centrifugal impeller, but the scopeof the invention is not limited to the use of such mechanisms.

The combined support and housing 17 is adapted for being mounted directly upon the engine without the use of any bracket, and is furthermore adapted for communicate Fig 2, a fragmentary plan View thereof;

ing directly with the cooling compartments.

of the cylinder block, without the use of any pipe or hose connections.

ished seat 26 formed on the engine 10. The flange 23 is provided with apertures through which cap screws 27 may extend and screw into threaded sockets in the engine walls, for securely mounting the pump upon the engine.

As illustrated, the engine seat 26 is formed on the crank case 11, but may be formed on any other desired part of the engine such as the cylinder block.

In the illustrated embodiment the outlet duct 20 in the housing 17 connects at the seat 26 with the lower end of a crank case duct 28 extending upwardly therefrom and connecting at its upper end with a cylinder block orifice 29 communicating with the cooling compartments 13 for completing the circulatory passageway for the cooling medium, which is usually water.

The foregoing construction and arrangement of the engine cooling apparatus, eliminates piping or hose between the pump 16 and the cylinder block, and consequently minimizes leakages and saves the cost of such parts.

It also eliminates a separate pump bracket for supporting the pump upon the engine, and provides a rigid mounting for the pump, and makes the pump very accessible and easy to replace.

It provides the shortest route from the pump to the member to be cooled, thereby cutting down friction losses with a consequent reduction in the power required for driving the pump.

I claim:

1. Cooling apparatus including an engine and a pump mounted directly upon the en gine the engine including a cylinder block and a crank case, walls of the cylinder block forming cooling compartments therein, walls of the crank case forming an upwardly extending duct communicating with the cylinder block cooling compartments, and the pump communicating directly with the crank case duct.

2. Cooling apparatus including an engine, a radiator and a pump, the engine including a cylinder block and a crank case, walls of the cylinder block forming cooling compartments therein, the pump being mounted directly upon the side of the crank case and ineluding walls forming an inlet and an outlet, walls of the crank case forming an upwardly extending duct communicating with the cylinder block cooling compartments, the pump outlet being directly connected to the crank case duct and the pump inlet being adapted tobe connected to the bottom of the radiator.

In testimony that I claim the above, I have hereunto subscribed my name.

CHARLES BALOUGH.

Images