US1769932A - Circulation system for engines - Google Patents

Description

July 8, 1930. w. E. ADAMS CIRCULATION SYSTEM FOR ENGINES Filed March 2'7, 1928 QW-w Q INVENTOR, i/lrfl 1c! A TTORNEYS.

Patented July 8, 193% WALTER E. ADLIViIS, 015 LOS ANGELES, CALIFORNIA CIRCULATION SYSTETEFOR ENGINES Application filed. March 27, 1928. SeriallNo. 265,050.

This invention relates to an improved circulation system and means for engines, and particularly internal combustion engines. a The invention has for an object the provision of a cooling system and means which is effective to the end that those parts of a motor which'work under the greatest heat are properly cooled. Internal combustion en ginesare sometimes subject to what is known as cracking ofthe cylinder block due to overheating of the engine. My system has for an object a cooling method as well as a means which will in a large measure overcome this trouble to the end that cracked cylinder blocks rarely occur. My system and means may be utilized as an attachment for existing engines or it may be formed integral with the engine blockat the time the engine block is cast.

I have found that in the average truck, the

truck drivers often work their engines to the extreme limits in the hauling of heavy loads.

It often happens that truck engines will run in low gear for hours at a time and unless the driver is careful, the cooling medium, if it happens to be water, will become extremely hot and no longer effect a proper cooling of the engine with the result that a crack will occur in the block and the engine is rendered practically useless thereafter. The cooling medium, which is usually water, has an entrance within the engine bloclr usually on the exhaust side. This water is generally forced into the engine block from a radiator through the medium of a pump. This pump is adapted to force the water into the engine block under pressure and the inventor has found that this water pressure is usually sufficientto force the water to the opposite side of the engine, that is, to the intake valve side which 40 is generally cool, with the result that the hottest side of the engine is in a measure neglected or at best the water is warm or hot by the time it reaches the exhaust side of the engine, or the water may back up on the exhaust side of the engine and prevent the cooler water from actual contact with the cylinder walls in the exhaust valve housings. Quite naturally the exhaust valve side would then overheat and a'crack would probably result if the engine had a long continued use under tion and relative arrangement of parts, memdescribedgenerally, and more particularly pointedout in the claims.

'ceives water or other liquid from the cylinder these operating conditions. Another factor would be that steamwould form above the surface ofthe water and tend to prevent actual circulation around the hottest portion of the engine. I

My invention has for another object the provision of means which will direct the water to where it is most needed to the end that the hottest side of the engine will have a proper circulation of cool Water.

Other objects will appear as the specification proceeds and with such objects inview, the invention consists in the novel and useful provision, format1on, construction, associabers and features, all as shown in a certain embodiment in-the accompanying drawing,

In the drawing: 7 V Figure 1 is a top plan view of an engine block witlrthe-head removed and showing the invention incorporated within the block, Figure 2 is a transverse sectional viewof the engine on the line 2-2 of Figure 1, and Figure 3 is a perspective view of a means which may be used in practicing the invention.

Referring now with particularity to the drawing, theimproved circulation system and means is designated as an entirety by A, and the same may include a radiator a which rehead 6 of an engine 0 and which water is run through the radiator for the purpose ofcooling the same and delivered at the lower extremity of the radiator to a circulation pump (Z which pump in turn delivers the water within the engine 0 through means 6. This means e is shown inFigure 3, and the same includes a curved tube 1 flanged at one end 2, and the opposite end is capped or closed, as shown at 3. Said tube-is provided with one or more openings 4t adjacentthe capped or closed end 8. In the present instance three openings are provided and arranged substantially apart. Ordinarily the pipe 5 leading from the pump d communicates directly with the interior of the engine block. It will be seen from the figures that the device e is inserted velocityloy the pump withingthe and the same movesdirectly acrossthe engine within the engineblock so thatthe perforated end thereof "lies adjacent the intake valve housings shown'at 6. Thepipe 5 isthen con nected to the flange 2 in thBHSHfll manner, that is,by passing bolts through bolt openings7in the flange 2 andinthefiangeon the endofthe pipe 5 and thensecuring the'same by nuts, I The motor illustrated in Figure l i's otth'e dual valve typehavingjtwo intake valves for each cylinder as well as two eX- haust valves for eachcylinder. -Ordinarily water. from the radiator, a is forced at high engine block block, as indicated by the arrow 8 to the opposit'e side of the engine block andflows be tween the intake valve housingsand thecyl indersland thence around contact with the exhaust valve housingsTand the cylinders This,,of course, causes the coolestwa'ter-to contactlwith the coolest part of the motor.

Withmy system and by utilizing the means 6,

the water would be divided and one-third of said stream of waterwould' flow'in the direc- V parture from use of the as indicatedby the arrows 11. thattheopenings 4 a're close to the tops'of the I valve housings orthat portion which normaltion of the arrow 8 and the other two-thirds would flow in the direction ofthe' arrows 9 and 10 thus coolwater would belcaused to contact'fas between the exhaustvalve housclosed end and formed with a plurality'of orifice openings, and means for forcing water under pressure through said tube and out said orifice openings, said tube being positioned adjacent the tops of the valve housings to thereby direct the cool water against the hot test part of the engine. 7 j i j In testimony whereof, I have signed my name to this specification at Los Angeles, California, this 15th day of March, 1928.

a WALTER E. ADAMS.

ings and the cylinderwalls. The result will a be that the cool waterwill circulate generally,

Itwill be noted lyreceives the valvehead. This is the portlon of greatest heat and vthe'coolwater is brought directly in contact with 'thisportion.

It is obvious that the'means-e'might be cast I V in theengine blockor that the point of entrance of the Water within the engine block might be raised and suitable means, for directing the path of flow of the waterin deprecise features of v the device 6, and that these changes are con- V of saidengine,

I I end and formed i templated without; departing from thetrue .7 v H spirit of the invention. a 1

' Having thus disclosed my invention what I claimand desire to secure by'LettersPatent 1. I The combination Withja water cooled engine, 'ofatube received in the water jacket said-tube being capped at one with an orifice openi11g,and means for directing Waterunder pressure through saidtube for said orifice opening.

outward flowthrough i 2.1 Thecombination with the waterja-cket i of an internal combustionengin of a: tube received within said Water jacketysai'dtube being provided with orifice ope1 1ings, ?and means a for directing Water underfpressure into said tube, said orifice openings splitting the path of flow of said water into a plurality of directions. a vi a I Q Q 3. The combinationwith an internal com bustion engine having the usual intake valves llH lli")

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