US1233287A - Carbureter. - Google Patents

Description

fa. COSTA:

GAHBURETER.

APPLICATION FILED Amm, 1915.

TTOENEY'" A. COSTA.

CARBURETER. APPLICAIIQN man M1644. 1915.

Patented July 10, 1917*.

/N VEA/iro@ the suction of the engine, raises the ioat 6 whereupon through the medium of the link 7 Aand the lever 8,. the valve 9 closes thecommunication 10 and shuts ofi' the supply of gasolene to the auxiliary chamber 4.

-The kerosene chamber 21 surrounds the.

gasolen'e chamber 4 and the casting 2` has an opening 22 communicating with a nipple v23 by means of which the kerosene joil-sup4 A oat 24A ply pipe is connected thereto.

' of a circular ring-'like form is located in the .15I a stud 29 carried by the casting 2. rIhe .outer free end of the yoke 27 has pivotally kerosene chamber and is provided with two downwardly extending lugs and 26 to which is loosely connected the yoke 27, said yoke being intermediately pivoted at 28 to carried thereby a valve 30,` which closes lthe communication 22 of the kerosene supply whereby a 'pre-determined oil level is mainlta-ined within the kerosene receptacle. The casting 2 .has formed integral there,-

with an extension 31, which terminates 'in a. cylindrical upwardly disposed mixing chamber 32# The 'chamber 32 isprovided munication with the kerosene chamber` 21.

48 f y the drawing, extends upwardly about midway the height o`f themixing chamber and The gasolene passage 34 likewise has an eX- tension 37 Awhich extends through the casting 2` and is in` communication with the central gasolene chamber 4, as clearly shown in Figs. 1 and 5 of the drawings.

The oil nozzle 33, as shown in Fig. 1, of

the oil passagel 35 has a. contracted upper `end 38, forming a seat 39 for the valve 40.

The valve 40 extends downwardly through. the passage and has a screw-threaded portion 41 screwed within the nipple 42 formed 'as a part of the casting2. The lower end of the stem below the' nipple is provided with an operating handle 43 and a lock-nut 44, by means of whichthe valve-stem may yis provided with` a` central oil-discharge be positively lockedin its adjusted position to' prevent the jar to which the carbureter is subjectedfrom working the valve-stem in either direction. The upper end of the oilnozzle 33, as shown in Fig. 5'of theI drawings, is preferably` flat anda cap 46 tightly lits over and around the upper end o the nozzle leaving `a space 37 between the" upper end of the nozzle and the cap. The nnzzle opening 48,I for discharging eitherv kerosene or gasolene therefrom. yThis opening 48 is of a diameter lessthan that of either Of the f openings 34 and 35. The nozzle 46 has its .of the-'mixing chamber and held in this` spaced position by means of the webs 51, as shown in Fig. 1 ofthe'drawings. The mixing tube starts at a point considerably labove the bottbm of the mixing chamber and has an inwardly curved portion 53 in a horizontal alinement with the upper end of the nozzle 46. This inwardly `drawn portion forms a contracted opening surrounding the .beveled walls 49 lot the nozzle 46. The mixing tube above the flange is again flared outwardly and extends vertically to a point adjacent the upper end of the mixing chamber. This vertical portion 54 of the mixin tube is provided'with a great number-o perforaticns 55, which slant upwardly from the outer surface and entirely surround the mixing tube. The mixing chamber 32 is drawn inwardly at a point in horizontal alinement'ivith the upper end of the vertical portion of the mixing tube and is provided with an inwardly beveled portion 57,

terminating in an outwardly beveled portion 58, which ends at the extreme upper end of the mixing chamben The inwardly drawn portion `of the mixing tube forms a small circular passage 59 between it and the upper solid end 60 in the mixing tube.

Within the upper end of the mixing cham:- ber is a butterfly valve 61, mounted upon a Vshaft 62, which extends outwardly and is provided with an operatinglever' 63, con I gnected to a rod 64, which, extends forwardly and inv easy reach` of the operator. The butterfly valve 61 vhas one end beveled at 65, -in one direction to fit the outwardly beveled .portion 58 of the mixing chamber and the other end beveled in the4 opposite direction, as indicated at 66 vtoengage the 4inwardly v beveled wall. 57 of the mixing chamber, whereby a tight joint is formed to entirely cut` off suction from the vintake manifold of the engine. The extreme upper end-of the mixing chamber 32 is provided with an annular flange 67, which is adapted to be bolted to the pipe 68 leading to the intake manifold 14.

The lower end of the mixing chamber has formed integral therewith or as an extenf sion of the casting 2, an outwardly extending portion 69 forming the air-intake to the mixing chamber.. Secured to the lower face Lasa a;

xdrawings. The couplingy 71 has connected at 1tsouter end a flexible tube 76., which'is in communication with the exhaust pipe or ex 'haust manifold, asshown inFig. 2 of thev valve. 73 and draws a quantity of air or.

the exhaust from the exhaust-pipe from the engine, as will be described.

rlhe portion '69 at its upper end pro hereinafter more fully vided with'an opening 80, in which is se- ,cured a sleeve 81 having a valve seat 82 at -its lower end', upon whichrests a valve 83 carrying astem 8 4, which extends upwardly and is normally held in an outwardly or.

.upwardly position lby means of the 4coiled ball 78. v n

spring 85. This spring 'is of. greater strength thanthe spring 7 5, so that when the engine .is running slowly, the valve 83 is held closed and the mixing chamber is only receiving the heated air through" the lpipe 76.-` When the engine speeds up the suction through the mixing chamber is' greater, which overbalances the-.tension-,of the'springg/rand opens the valve 83 and fresh cold air is takenin .through thesleeve 8 1 andl mixes with the heated air from the exhaust. In order to vary the .tension of the'spring, l provide a springfcap- 86,' working on the -spring in the4 same manner as the cap 76 and heldin itsadj'u's'tejd posify tion by meansgof a .ballj87-rthe same as .the

A small cylindrical-- adjacent the'engineand pipe 89 and connected to'i a.co upling5;. `f 'the es arten-'sed gasolene chamber 4. l'argervkero'senetanl:

90. is'likewise arranged adjacent the` engine andis provided with a pipe 91 connected to the nipple 23., which communicates'with the' kerosene chamber 21. -Bythis arrangement it will be seen that both the kerosene and the gasolene chambers are indirect communica.-

tion with the supply tanks.

ln the formfshown in Fig. 3, it has been found very advantageous to heat the mixture or vapor as it passes from the upper end of the, mixing chamber 32 and l. accomplishthisby placinga block 92 between the upper endof the mixing chamber 32 andthe pipe- 68l leadingto the manifold. This, as will. be readily seen closes the. communication between the pipe 68 and the upper end of the mixing chamber 32. IThe upper end of the mixing chamben'in the form shown in Fig. 3, has a pipe 93 in communication therewith, which leads around and vthrough the. exhaust manifold 94 and extends back and is connected tothe pipe' 68 at 9 5 above provided with 'a'.-4

passage oithe'vapor or mixture through the exhaust-manifold heats it very` ,intensely so sage to the mixing chamber and nozzle and in order to accomplish this, I haveshown the water-jacket entirely surrounding theA carbureter, as shown in Fig. 7 of the drawing. A water space 96 surrounds the oil receptacle, which is in communication with the water-space 97 through the passage 98,

that a moreperfect combustible mixture is and said 'passage being in :communication j with the water-space 99. .'surrounding the 'mixingchamber 32, through the passage 100. The water is taken into the jacket through the pipe 101 at the upper end-of the mixing chamber and circulates therearound and also around the air-intake valves andaround the oil receptacleand is discharged through the pipe 102 at thebo'ttom' of the oil receptacle.

"lhe operation of the device is as fo llVhen thelengine isat rest, as heretofore described, .the'ball 1 8 drops upon the-ring 19 and the valve 9'is opened so that a quantity of' gasolene passes to "the chamber .4. An .oil-level is maintained within the `kerosene chamber 21 by means of the float 24, as herelows:

tofore described, and my improvedfcarbuy fiber and draws the gasolene from the pas- 1 sage- 134,* out .through theopenin-g 38 in the nozzle into' jt-'he perforated upper end of thel I 'n'ixin'g tube to the intakefmanifold andthe 4 en -gine isistarted. With vthe starting of the "engine-a suction is caused in the manifold 14 and :through thepipe- 13 the ball 18is drawn upward uponthe seat-17, which' prevents the'manifold 'from drawing the gasolene directly fromthe gasolene chamber 4;'

the ball `being.-connected to the.ioat the valve is closed vand held closed as long as the enginel is running. The suction through themixing chamber, as heretofore described,

opens the valve 73 and draws the heated air into the lower end'o the mixing chamber and upwardly therethrough on both thein-\ ner and outer sides of the mixing tube 50. When it reaches the inwardly drawn portion M52 of the mixing tube it shoots across the upper beveled end 49 of the nozzle and draws the gasolene from the opening 48 in lll@ the nozzle. At the Sametime the portion of the air which has passed on the outside of the mixing tube 50, travels inwardly through the openings 56 "and causes'cross-currents of air with the/air and mixture passing through the -opening53` and thoroughly breaking up 65 the block 92.` lt has ybeen found that the all vapor particles suspended in the air and heavier oil.

thoroughly mixing the same. The 'vapor f then passes upwardly out of the perforated vall of the gasolene within the chamber 4f has been/consumed;- the heavier oil or kerosene being` not acted upon as long as there is any light oil within the nozzle 33. By the time all of the gasolene is consumed, the engine is heatedup and the air taken in through the passage 71 has'become thoroughly heated i and passes through the mixing chamber, the

entire chamber and the nozzle is heated so that the exact operation takes place with the When the engine is stopped,-the ball 18 drops upon the ring 19, allowing the float to descend and open the valve 9, allowing ana other charge of gasolene to pass tothe chamber 1, and the iioat valve cutting ofil the supply of gasolen'efafter/it has reached a pre-determined levelin Athe chamber.` `It `might be possible tol start the engine di-^ reetly after stopping without'the' use of gasolene', but to vmake the device wholly automatic so that there will be no cocks or hand-operatingmeans tofool with, the gasolene supply is renewed whenever the engine isstopped' This application is a substitute for a prior application Serial #765,322, lled 3,

Claims:

1. A carbu-reter` comprising a mixing chamber, a light oil supply for saidV chamber, a heavy yoil supply for 'said chamber,

` and means controlled by the suction of the engine for cutting off the supply of light oil after the engine is star-ted.

2. A- carbur'eter, comprisingI av mixing chamber having a light andheavyJoil-sup-- ply, an automatic means for cutting oi' the light oil-supply after the engine is started and opening up. the supply when the engine.

isstopped.

v3, A carbureter comprising a mixing chamber, an oil supply nozzle extending upwardly from the bottom of the chamber to a point about lmid-way its height, a mixing tu-bewithin the mixing chamber and spaced from the nozzle and the wall of the mixing chamber -and terminating some distance above the lower end of thechamberVsaid mixing tubjelhaving an'inwardly contracted portion in a line with the upper end ofthe nozzle, said tube above the contracted portion having perforations inclined upwardly from the outside, and the upper end of the mixing chamber 'above the perforated por- 'tion of the tube having inwardly inclined `walls terminating in outwardly inclined bers to the mixing chamber, `oil supplies for said chambers and means operated by the 'suction of the engine for cutting oif the light oil-supply after the engine is started. A carbureter, comprising a mixing chamber, alight oil-supply chamber adjar cent the mixing chamber, a heavy oil sup` ply surrounding the light eil-supply, supply pipes for said oil chambers, oat valves controlling the supply of oil to the said chambers, means opera ted by the suction of the engine for cutting on' the supply of light oil to its chamber, a nozzle extending upwardly within the mixing chamber and having two passages of different-sizes in communication with the light and heavy oil chambers, and means for supplying air to the mixing chamber at its lower end. 6. A carbureter, comprising a mixing chamber, an oil-supply nozzleextending upwardly from the lower lend of the mixing chamber and having two oil passages of different sizes therethrough, one for light oil and one for heavy oil, a cap on the upper tween it and the upper end of thef nozzle and having a single passage communicating with the space, and means within thenozzle for controlling the'supply of heavyoil therethrough.

- 7.,A carbureter, comprising a mixin chamber, 'an oil supply for the chamber an extending upwardly from the bottom thereof, a mixing tube having a solid lower end surrounding the oil-supply and a perforated upper endy above the oil-supply, a butterfly valve within the mixing chamber above the perforated portion of the tube' and means for supplylng ai-r to the lower end ofA the mixing'chamber on the' inside and outside of the mixing tube.

8. iA carbureter, .comprising a -mixing chamber, anoil-supply nozzle extending upwardly vfrom the bottom thereof, a mixing tube having a solid portion surrounding the .oil supply and drawn inwardly at the upper end of the oil supply and having a perforated portion of less diameter than the lower portion above the oil supply, the up-V per end of the mixing chamber above the perforated portion of the mixing tube contracted and then expanded, and. means for supplyinghot and cold* air tothe lower end of the mixing chamber onthe inside and outside of the tube.

' 9.'A carbureter, comprising a receptacle 'havinglight'and heavy oil chambers -end of the nozzle and having a space beneeaae'z .jacent thereto and in communication there- Withya light and heavy oil-supply for said chambers, a pipe connected to' theintake manifold of an engine for closing the supply of-light oil to the chambers by the suction in the manifold, and means for supplying the mixing .chamber with the vexhaust from the. engine, andl means for heating the vapor or mixture as it passes from the mixing chamber to the intake manifold.

1l. A carbureter? comprising a mixing chamber.J a light `o1l chamber, a heavy oil chamber surrounding the light oil chamber, said light and heavy' oil chambers bein in communication With the mixing cham er, said heavy oil chamber 'and the mixing chamber having a Water jacket surrounding the same and in communication with the Water circulation of an enginel l2l A carbureter,l comprising a mixing chamber, a lightand heavy oil-supply for said chamber, the upper end of said `chambei being in communication With the intake manifold, and means caused by the suction in the manifold for drawing the exhaust of the engine into the mixing chamber When the engine is running slowly and to draw y both the exhaust and fresh cold air engine is running fast.

13, A carbureter, comprising a mixing chamber, an oil chamber adjacent the mixing chamber, the upper end of the mixing chamber in commimication with the intake when the manifold, 4a pipehleading from the exhaust y of the engine to the mixing chamber and an auxiliary air-port in communication with the atmosphere, ,vherebylthe suction of the engine through the manifold draws the exhaust into the mixing chamber when the engine is running slowly and draws both the exhaust and fresh cold air When the engine is running fast.

14. A carbureter comprising 'a mixing chamber, an oil-supply nozzle extending upwardly from ythe lower end of the mixing chamber and having two oil-passages of dify iferent sizes therethrough one for the light oil and one for heavy oil7 a cap on the up-` per end of the nozzle and having a space between it and the upper end of the -nozzle and having a single passage communicating with the space of a diameter less than that of the heavy andI light oil-passages.

Signed by me, this 11th day of August7 1915.

ANTHNY QSTA.

Attested by:

H. B., Fax,

Tnoe. H., Een

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