US954780A - Cooling device for gas-engines. - Google Patents

Description

J. A. CHARTER.

COOLING DEVIGE FOR GAS ENGINES.

APPLICATION FILED JULY 2a. 1908.

954,780. v I Patented A r.12,191 0.

' inder of the latter,

communicates freelyatits upper end with UNITED STATES PATENT OFFICE JAMES A onnnrnn, or cinc'neo, ILLINoIs, AssIGNo a r0 AUSTIN MANUFACTURING COMPANY, or CHICAGO, ILLINOIS, A CORPORATION or ILLINoIs.

COOLING DEVICE FOR GAS-ENGINES;

Specification of Letters Patent. Patented Apr. 12, 191%).

Application filed July 28, 1908. SeriaLNo. 145,1781.

To all whom it may concern: I

Be it known that I, JAMns A. CHARTER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Cooling Devices for Gas- Engines,of which the following is a specifi cation. This invention relates to the art of in-v ternal combustionengines, and has reference more particularly to a new and improved means for eifectingthe cooling of the cylinder of the engine, wherebyto increase its efficiency; v

Myimprovements belong to that type of cooling devices wherein a practically continuous circulation of the cooling medium through the cooling; jacket of the cylinder is maintained; and one object of the invention is to provide a. means for the ready escape and disposition in the cooling .water.

In carrying water tank suitably located with reference to the engine and preferably below the cylstandpipe' of relatively large size on said tank,

the atmosphere, a pipe leading from the weter-tank t'o the jacket of the cylinder, in

which pipe is preferably located the water- .forcingmeans, water jackettappingand a return pipe from the the standpipe in such a wayas to allow the return water to descend freely into the tank, while any steam carried thereby may freely escape through the open upper: end of the standpipe.

Anotherfeature of the invention residesin separating the water'jackets of the cylinder.

proper and cylinder-head and providing independent means for controlling the circulation of water through each, so that the application of the cooling medium to both the head-and cylinder may be independently regulated as the conditions of service may require.

My invention will be readily understood.

when considered in connection withthe accompanying drawing, practical mechanical and-iniwhich the figure is a side elevation of a'gas en he with my improved'cooling devic'e' app ied thereto, the cylinder and cylinder-head being partially broken out to more clearly display the water jacket.

of any steam that may forin v I other end apair of branches 14 and 15leadout my invention I employ a which illustrates one embodiment thereof,

Referring to the drawing, 5 designatei that ortion of the frame constituting the cylin er housing or shell of the cylinder water-jacket, and 6 indicates the cylinder proper secured therein.

7 designates as an entirety the cylinder head, which is internally cored to provide a space 8 for thecirculati'on of the cooling medium, and which is provided with 3. marginal flange 9 by which itis secured to the end of thecylindenhousing', as by bolts 10. The water spaces ofthe cylinder and cylinder-head are entirely'separated. I 11 designates a water'tank, preferably located on a plane somewhat below that of the cylinder, and 12 designates a standpipe of relativelylarge diameter that rises from the tank 11 and at its upper end is in free and open communication with the atmosphere.

.Leading from the bottom of-the water tank 11 is a water-supply pipe 13 having at its inginto the water circulation spaces of thej'cylinder and head, respectively. The branches 14 and 15 are equipped with controlling valves 16 and 17, respectively.

'18 designates a water return pipe which communicates by branches 19 and 20 with the water circulation spaces of the cylinder and head, respectivelyfThe other end of the pipe 18 is tapped into the standpipe 12.

In the supply pipe.18 is a water-forcing device,-herein indicated as a rotary pump 19, for maintaining the circulation of water.

In the operation of the device, water from the tank 11 is continuously forced through pipe 13 and its branches 14: and 15 into the water circulation spaces of the cylinder and head, respectively, absorbing the heat generated in the latter, and flowing off through branch pipes 19 and 20 and pipe 18 into the standpipe 12, through which it again descends into the tank ll for re-use. The standpipe 12 is empty of watenas indicated in the drawing (excepting, of course, for the shower of return wate falling from the end of pipe 18); so that the water in the tank 11 is at all times subjected only to at- ,mospheric pressure and not to the hydroreturn water to fall in a saower or spray from the end of he rot-urr pipe 18 to. the

top of the body of water in the tank 1 l. The circulating pump 19, it may be noted, 1s

valveles's, which, by opening of-the valves 16 and 17, permits the water to flow'baek- Wardly through the same when iti is idle; and this feature, in association with the non-continuous body of circulatingv water as above described, is of importance in engines used on vehicles or subjected to freezing weather, since, when the engine is idle,

the water from the jacket may bedrained engine, the circulation being maintained by heating up the water in the supply-pipe between the tank and the jacket vby the exhaust gases. My invention is radically distinguished from such a system in the fact that it does not employ a solid or uninterrupted body of circulating Water, and consequently of necessity employs a mechanical water-forcing device to maintain the flow.

By suitable regulation of the valves 16 and 17, any desired proportions of the cool-' .ing water ma be'caused to flow through the jackets o the cylinder and head, re-

spectively, it being. found that with certain classes of fuel the'cylinder-head can be, and should 'be, maintained at a much higher 1 temperature than the cylinder, since there are no moving or sliding parts in the head which might be damaged or injured in re spect to operation through excessive heat.

The standpipe 12 being of large diameter relative to the other circulation pipes, the hot water, as soon as it is dis iharged into said standpipe, freely spreads .or separates itself in the latter, thus facilitating the liberation of the steam I claim:

The combination with the cylinder and cylinder-head of a gas engine having noncommunicating,water-jackets, of a watertank, a stand-pipe on said water-tank open to the atmosphere, a water supply pipefrom said tank having branches communicating with the water-jackets of said cylinder and cylinder head,v respectively, a return pipe connecting into said stand-pipe and having branches communicating with said waterjackets, respectively, a pump in said supplypipc, and independently operable controlling-valves in the branches of said supplypipe, respectively, substantially as described.

7 JAMES A. CHARTER. Witnesses:

S. T. MANN, CLARE L. RosENoW.

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