US1226366A - Carbureter for gas-engines. - Google Patents

Description

H. J, POULf/(K.

CARBURETER FOR GAS ENGINES.

APPLICATION man JAN. 6, \913.

Patented May 15, 1917.

3 SHEETS-SHEET I.

H. J. P00LAK. CARBURETER FOR GAS ENGINES.

APPLICATION FILED JAN.6,19I3.

1,226,366w Patented May15,191?.

3 SHEETS-SHEET 2.

H. .3. PODLESAK.

CARBURETER ma GAS ENGINES.

APPLICATION FILED JAN. 6. I913.

Patented May 15, 1917.

3 SHEETSSHEET 3.

matte- To all whom it may concern:

Be it known that'I, HENRY J. Ponnnix,

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 Carbureters for,

Gas-Engines, of which the following is a full, clear, and exact specification;

This invention relates to carbureters for internal combustion engines, more generally known as gas engines.

In the operation of gas engines, it is of fore it passes into the combustion chamber.

of an engine, has been a problem confronting those who are operating engines using such heavier hydrocarbons as fuel. 1

' It is the object of my present invention to thoroughly .vaporize the oil fuel, espeoially the heavier hydrocarbons, such as kerosene, before the same enters the combustion chamber of an engine,

This object is accomplished by heating the mixture, kerosene or other hydrocarbon and. air, in a preheater before said mixture enters the combustion chamber. y

The invention is illustrated on the accompanying sheets of drawings, in which Figure 1 is a fragmentary end view ofan internal. combustion engine equipped with my invention;

Fig. 2 is a fragmentary side view of the same;

Fig. 3 is a sectional view of my improved carburetor taken in the plane of line 3--3 of Fig. 1;

Fig. e is a sec'tlonal viewof said carburetor taken in the plane of line k4 0i Fig. 3;

Fig. 5 is a partial sectional view of one.

portion of the carbureter taken in the planes of the irregular line 5-5 of Fig. 3;

CBUEETER FOR GAS-ENGINES.-

Speclfication of Letters Patent.

tion will be apparent fron the descrip and drawings and will" be particularly 6 is a sectional view of the mixing nann J. ronnnsan, or cnrcaoo, rumors, Assrenon, rir misnn ASSIGNMENT-S, 'ro INTERNATIONAL nanvnsrnn conr'onerron, a QORPORATION or ivnw JEBSEY.

chamber taken in the plane of line16 ,6 .of' F 4 I e Fig. '7 is a sectional view o f the taken in the planeof line 7-7 of Fig. 6;?

Fig. 9 is a view looking-intothe of the heater port1on' of: the: carburetor l V Patented May 15, 191 a ucationmea.ranuarye,i513. Serial no. 740,479.

wherein. the fuel is thoroughly vaporized and mixed with air. A The various novel featuresof my pointed out in the appended claims. v My invention is illustrated in connection with a gas engine having a cylinder 10' the end'hea'd 11 of which is securedmy improved carburetor 12, including a casting i.

13 having a passageway 14 through,wliich fuel is adapted to flow, and a passageway;

15 through which water is adapte'dto' Jlow, said passageways being separated. by a-par-' tition 16. These two passageways 14 and 15 eventually terminate in a single passage-. way or mixing chamber-17 where the 7 air and water mixpreparatoryzto passing intothe combustion chamber ofthe engine.

Mounted ontop of the casting 13 is-a con-' duit 18 through which air may pass into.

the passageways 14 and-15. Secured toone side of the casting13 is a receptacle l) having a fuel reservoir 20 and a water reservoir 21.

fuel from any. desiredsourceth rouglran inlet pipev 22, the pressure of the fuel xbei'ng v The'fuel reservoir is supplied.-with maintained constant within said-fuel re'ser: voir due to the fact that the latterv is pro videdwith an overflow having an outletj 23. In like manner, the A vided with an inlet ipe24 and an over flow 25. .Fuel and water are adapted. to be drawn up and out through their corresponding nozzles 26 and 27'upon the occurrence of every inhalation stroke of the gas'en- Q' gin. The fuel nozzle 26 is provided with a manually controlled needle valve 28, and

the water nozzle 27 is also provided. with a p the castingv 13 are oil controlling valve 31 winter reservoir is 'proand water controlling valve 32 located in the passageways 14 and 15 respectively. The water nozzle 27 enters the air passages Way 15 at a point somowhatliigher the 11.39

fuel nozzle: 26 i enters the l-nlfifiilgtflitl) 14, and the valves 31 and aremounted on the horizontal stem in a tnaimeinsueh that:

The casting is mounted upon another east ing33 having an irregular .passageway 34 registering with the exhaust pipe. 35 of the "gas engine, so that exhaust gases from the through the pipe 38. This rasting combustionchamber of the engine canpass through the irregular passageway 34, heat mg the walls, such as 36 and 37, of the ('asL.

lngill, the exhaust gases then passing (int "123 is aiso provided witha set ofpassagewaysilt and 3!), the former registering with the fuel passageway H and with one end 40. ofanirregular passageway 40 in a removable heaterjo'r member 41 which is normally secured to the side of the easting 33. The otlter'1mssage-- way 39 registers.with the other end 40" of the irregular-passageway 40.

. This heater .41 rereives' its heat by eonduction lireetl-y from the wall 37 ot'the casting Eli-l. 'lhe heat is conducted through laterally extending lugs or projeetions 42 and a ventral partition 44 \vlueltare lornied integrally. with the three-sided wall ill of the heater 41 so that all parts ole-the heater ll.

mixed with the \\';llt'l' l'ront the water pas-" beeonte extrenu-ly hot.

'lhese lugs 42 are lorated in the irregular"passageway it) of the heater il to assist in thoroughly -mixing the l'ueL'sueh as kerosene andfair. At the StlHNFt-lll'lutl'lt' heated walls aiullugs of the "healer give up their heat to the mixture of fuel oil and airpassing theretlirough. eat|s-- ing the fuel oil to thoroughly vapm'ize before passing lrom the heater. The ventral parlition l-l ol the heater .-lll'ormsthe irregular passageway l0 aml is also provided with extensions l5 \\'lll('ll also assist; in runsing the ai and l'lielinsaid heater to thorough y lnixaml vaporize. Alter the'heated mixture passes through the heater ll, it

sageway l5-in thepassageway'l7 whieh registers with a pipe H3. in whieh'is lot-ated a throttle valve IT mounted ona stem is.

Seeured lo the valvestems Ill! and ln'itre arms -ll and 5H respe tively eonneeted bya as kerosene. ll it is desired to start the engine on gasolene, thesame may be inje 'ted 'intu the fuelpassageway 1 the gasolene vaporizing when mixed with air. It, how ever, it is desired to start the engine on kerosene or some otherlu-awv hydrocarbon, heat 'shotlld be applied to the. heater -l.l by some means, such as a tort-h l'or instanee, so that the heavy'hydroeai-lm'n fuel oil will be thoroughly vaporized upon passing' through said heater. ()t' eourse when the .engine is ont'e started the exhaust gases. as explained, raise the teidperatu're of the heater to an extremely higlh value t'or vaporizing purposes. To start the engine, the water is completely shut oll' by the needle valve 2!), air freely flowing down through passageway l-l, passing the l'ueli supply nozzh-BG, and drau'ingdhel'efront a eharge of the fuel oil. This inruslrofair and consequent eharge of fuel "oil llowing through the passageway H is eaused by the inhalation stroke of the pis- 'ton of the enginef After passing'thetuel nozzle 21', the fuel laden air flows through passageway 23%) and through the irregular passageway ill-of the heater 41., where the fuel, .su'e as kerosene and air are thoroughly mixed and heated, the fuel therein being horoughly vaporized. From the heater the vaporized fuel passes throught-hamber. thereby preventing-anywaste of,

the l'uel. .\l'teiabout ten minutes when the cylinder of: theengine is heated. the water is turned onjand adjusted through the agenev of needle valve Zl). so that the proper amount ran How to mix with the vaporized fuel after thelatter has pa tssed through the preheater,

the water and vaporized'l'uel then mixing in the passageway or mixing ehamber 17, whit-h is the termination of the water conduit 15 on one side and-the' eombined passageways l-l. 2511. H), and 3!) on thefuel side of the earluueter." .\l'ter the vaporized fuel and water have mixed in the passageway 17. all of the ingredients of the explosive mixture are drawn into the rotnbustion-ehatnber.

The purpose of mixing water with the ex-.

plosive l'uel mixture is to render the fuel eomparatively lean aml to'prevent pre-igni tion of the explosivemixture. mallull load speed e nditions, the valves are all full open. If now theload decreases, the speed ol' the i-ngine will in'rrease and by meansof the-speed govt-rm all of the valves will be moved toward elosed position, therebv eausing a deerease. in the supply of air, luel and water. .\t l'rietion load the water (-onti'olling valve :52 is elosed. preventing the admission of water and the fuel controlling,

Under norvalve is partly closed so as to reduce the volume of air passing theretln'ough, causing a proportionate decrease in the supply of fuel, it being necessary "that the explosive mixture be of aricher quality when the engine is working at friction load, at which time there is low compression.

ln gas engines using gasolene for fuel, it is not ordinarily necessary to preheat the gasolene and air mixtureprevious to the time it enters-the combustion chainher. llowever, in the eases/of gas engines using the heavier hydrocarbon oils for fuel, such as kerosene, it is necessary to thoroughly vaporize the kerosene mixture 'previous to the time it enters the combustion chamber for the purpose ofrrunning the engine at its highest elliciency and preventing loss of fuel, the fuel. if not completely vaporized, ordinarily leaking past the piston. By the use of my preheater, all heavy hydrocarbon oils used asfuels can be thoroughly vaporized previous to the time they enter the combustion chamber of internal combustion engines, thereby making it possible for an engine to operate at the highest efficiency and preventing the loss of fuel. If any fuel oil'should collect in the bottom of the preheater before the engine has had an opportunity to warm up in starting, such fuel oil can be drained from the preheaterby witlulrawing aplug 58 in the bottom of the preheater.

111 this particular case I have shown my preheater asheated by the exhaust gases coming from the combustion chamber. However, where oil, instead of water, is used for cooling the engine cylinder the oil, after having been heated in the cylinder jacket can be utilized to heat the mixture of fuel oil and air passing through the heater instead of utilizing the exhaust gases for that purpose.

- There may be various modifications and arrangements of my invention other than that herein specifically illustratedand clescribed, and it is my intention to cover-all such. arrangements and modifications which do not depart from the spirit and scope of my invention as set forth in the appended claims. i

What I claim as new is:

1. In ascarbureter, the combination ofta member having two parallel passagewaysf side by side, one for air and fuel, the other for air and water, and means for heating the mixture of ai and fuel before the same is mixed with. the air and water from the second passageway.

2. In a earbureter, the combination of a member having two associated parallel passageways side by side, one fo' a and fuel, the other for air and water, and a heater having a passageway forming a continuation of the air and fuel passageway.

3. In a carbureter, the combination of a member having two parallel passageways side" by side, one for air and fuel, the other for air and water, a mixing chamber, and

a heater intermediate said air and fuel passageway and said mixing chamber in which the mixture of air and fuel is heated before mixing with the mixture of air and water from the second passageway.

4. In a carburetor, the combination of a member having two passageways side by side, means for supplying fuel and air to one of said passageways and water and air to the other, an independent exhaust member through which hot fluid passes, and means detachably secured to said member adapted to absorb heat therefrom and impart it to the fuel and air passing therethrough for vaporizing the fuel and air mixture before being mixed with said water.

Chicago, 1a., Dec. 17, 1912. In testimony whereof] allix my signature, in the presence of two witnesses.

, nFN n J. PODLESAK.

Witnesses Jonn Kannazm, WALTER Douosn.

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