US1009121A - Carbureter. - Google Patents

Description

Ml- WBIWQDA.

OARBUBETEB..

Rd S E e H WW m vw o I WITH/8859 M. WEIWODA. 4 GARBURETBR.

APPLICATION FILED FEB. z, A1909. l ,009, 1 2l Y gj, z,

Patented Nov. 21,1911.

3 SHEETS-SHEET 2.

/17' TOHIVEVS M. WBIWODA.

CARBURBTER. APPLICATION FILED FBB.20, 1909.

Patented Nov. 21, 1911.

3 SHEETS-SHEET a.

SW M Erkl/Wwf@ I MATHIAS WEIWODA, OF NEW YORK,

N. Y., nss'IGNon ro YORK, N. Y.

GEORGE W. STEVENS, OF NEW CARBURETER.

Specification of Letters Patent. Patented 21, 1911.

Application filed February 20, 1909. Serial No; 479,045. l

To all whom it may concern: y

Be it known that I, MATHIAS VYaIwoDA, a citizenV of the United States, and la resident of the city of New York, borough of Brooklyn,\in the county o'f Kings and State of.` Ork, have invented a new and Im- New Y proved Carbureter, of which the following is a full, clear, and exact description.

Tliis'invention relates to certain improvements in carbureters 'for forming explosive mixture, and more particularly to that type of carburcter in which a liquid fuel is used and which is vaporized and mixed with ai or other oxygen-bearing gas. The subject-matter disclosed in this application has been made the basis of an application for throttle valve for carbureters, Serial No. 543,913, `filed February 15, 1910, and an application for float valve for ca'rbureters,.-Serial No. 543,959, iiled February 15,1910. l V

One important feature of my carbureter 'involves a construction whereby there is a thorough and uniform mixing of the air and liquid fuel. The air is delivered to the liquid Y, below the surface thereof and becomes charged not only in passing vthrough the liquid but also in passing over the surface of plates Wet withyliquid drawn up by capillary attraction. v

A 'further important feature resides in the means for insuring a uniform distribution of the air over the surface of said moistened plates.'

i5 My improved carbureteris illustrated as being provided with improved means for controlling the delivery of the fuel to the vaporizing chamber; for controlling the delivery of the carbureted vmixture from the 0 carbureter; for automaticallyV diluting the same, and for accomplishing various other desirable objects. These -neans are covered in my two divisional applications.

VMy invention involves various other features of greater or lesser importance, which will be hereinafter referredto and defined in the claims.

Reference is to be had to the accompanying drawings, termin l a art of this specie lcation, in which simi ar c aracters of reference indicate corres ending parte in all the liguree, and in Whic bi Figure l is a central verticab sectlon through a carburetor constructed 1n accordance with my invention; Fig.' 2 is a central vertical section taken at right angles to the plane Vof Fig. l; Fig. 8 is atop plan view of thecarbureter; Fig. lis a transverse section on the line 4-4 of Fig. l; Fig. 5 is a view lsimilar to a portion of Fig. 2, showing the throttle valve detached; and Fig. 6 is an end view of the auxiliary air intake connections and throttle controller.

In the specific form of carburetor illustrated in the accompanying drawings, I employ al substantially cylindrical spun metal casinglO, having theV bottom thereof formed integral with the sides and having` the top formedby a cast metalplate 1l. The plate is formed integral with an upper wall lit andl two concentric substantially vertical walls 13 and 14. Between these `four walls is formed an annular air chamber l5, con! stituting an air distributing conduit or passage, and connected to an air suppl)1 Apipe 16 leading from source of air, preferably air which has been previously heated. Within the casing are arranged a plurality of radially-disposed vertical plates 17, preferahly formed of sheet metal and extending from adjacent the under surface ofthe top Vplate 11 to adjacent the bottom of` the'casing. The outer edges of the plate lie closely adjacent the peripheral wall of the casing, but their'.y inner edges are spaced Vapart to leave a central annular compartment 18.

Each plate is inclosed in a flattened tubular sleeve'19, of fabric constituting a form of wick and serving to. draw the 4liquid fuel from the lower portion of-*thefcasing upwardly toward the vtop of the casing by ca-l pillary'attraction. The lplates 17 serve priwardly toward the top of the casing by cain position. The loweredgesf'of the plates 17 may be supported in any suit-able manner, as, for instance, by an annular horizontallydisposed plate 20, vand they are held against lateral displacement by the air pipes hereinafter referred to. At' the inner Vedges of the plates they may be kept apart by small metal clips 21, engaging with the' fabric at one or more points along the length of the edge of the plate.

For delivering and maintaining the level of the liquid substantially' constant, I providethe bottom of the casing with a threaded opening'normally losed by a plate 22. This yplate has a cen` ytral aperture 23 therethrough and surrounding the aperture isv a bossl, 'llo-thebos's vliquid fuel to the casing and inverted conicalsomewhat smallerthan preferably inclosed within a small casingBI-' may be connected aliquiddelivery'ifpipe 25A by any suitable form'of coupling 26.` With-- in the boss 24 andlheld'in .place by the pipe ,accumulation of impurities7 fthe screen 'preferably frmed'o a' I nultiplicit'yA of com necting conical portions. As shown, there 1s employed," an outer' .the ends 'of the 'boss 24 and ther of this portion 28.; The' twg ether present alarge conical portionsy to surface through which the` liquidimay. pass,- and reduces to' a minimum'. thegliabilityoil any clogging bythe accumulation vo f 'soli d vvalve seat for receiving `a vertically-movable valve 29 and encircling vthe 'valve'fste'm -30 of said valve is float v31; Below-:the

floatfare levers 32 fulcrulnedI onl bosses eX upwardly from theplate"22 and" tending having their outer ends pivotally connected to the float and their inner ends connected to the valve', whereby as 'the' liquid ac'cumulates within theulower V,portion of the cas-V may rise to force thevalv'e4 .downwardly against its seat and prevent the ing 4the float .further admissionl of liquid.' -".I*l1e`.iioat is the platefQSZ and is carried bythe. late 22., This casing also serves asa gui e for' the upper end ofthe ,valve stem 30. As alliof these parts are smaller than` the'op'enin'g in thenbotto'm of the casing, and as they are all carried bythe plate 22, it is evident that by unscrewing this plate and removing it from the main casing, the valve, float, casing 33, levers and screens can be removedwlthout disassembling the r'emaindei` of the carbureter.

AThe air which is admitted thrugh the in Vner side o f the annular air inlet passage 15,'

take pipe 16 to the annular passageor conduitI 15 is permitted .to escape through a plurality of Vnozzles in the casing '10 'adjacent the bottom'thereof and' beneath the liquid level. Thesenozzles are preferably -formed by a, plurality its upper end extending' lthrough thetop plate 11 of the casing and having ,its lower end disposed adjacent the bottom of the casingbut bent upwardly so as to discharge bei neath the surface of the liquid andy toward said surface.' These 'tubes are preferably ar"-4 ranged in annular rows, as many rows be-A ing provided as necessary to give the desired cross sectional area of air outlet. The tubes are disposed between the plates 1 7 and the tubes serve not only to deliver air but to holdv the liquid. Inorderzto truncatedf conical portion 27. having its periphery securedinf-place". intermediate .end of` the pipe 25,- and at the smaller e'nl' truncated conical portion is `an inner to `form a continuous tube,-

of small tubes 34:, veach having the 'plates in theirspaced relationship. The

qgiidfwithin .the casing ,'is .drawn upby the a to the the annular chamber. 15 downthrough thc -liquidaud over the surface `of the moistened fabric. The .air thus becomes. thoroughly charged with the vaporiz'ed' liquidbefore'escaping fromjhe caslng; ln orderto insure the uniform 'delivelsyLof air over the.- surface `of the plates, I .provide` a seriesfof Vlbaiiies withint-he center 'chaniberlSLy lThese -baiiies have a series of'small 'apertures` (hier the ,sur-v that the air. escaping from the.nozzles'will ric 19 covering the plates and the air, due f suction of the' engine,"is drawn from not rusll directly to thelow'er portion of the chamber 1 8 but will pass vupwardly between thesplates and enter the, chamber' 18 at different points valong'its length.;` s The specific form fbatlle illustrated involves of tubular sheet metal sections 35 nde'ach having laplurality.'

telescoped an outwardlyx'tendilg battle or annular' jiiange Beneatlreach annular provide anv annular row ofslots or apertures 37, through which theairl may' pasa liquid' n'iec'hani'callyv carried along with the ainwill'be interrupted by th'eb'aflies and will drip' back collect "on the'. annular flanges v and into' the lower portion of the chamber. The inner edges of the plates 17 are spaced' away ',from. the edges of the battles, or flanges so liquid in dripping from that none of the one flange to anotherwi'll come into'contact with tlie .plates. `hould-the liquid travel down thefedgesof the plates, 'Sonie of it might be blown acrosstofthe baiies and.

through the 0penings3'7.- At the lower end 'f of the s'eriesof battle sections 35, is a terminalbailie section38, havin'gga closed end'so that none of theaircan enter -atth'e bottom of the series but allmust pass through the ico 'openings 37. .A spring 39 may beemployed.

for partially suppurting the YAseries offbaliles '13119 .parts rigid .against jarring or from the top of the fioat casing-33, and for holding rattling. v

The annular wall 13 which forms the inalso forms the wallofa vertical s'a-ge 40, throughfwhich the explosive; mx-

'rture escaps from the center of the series of bailies',

ithi'n this passage may be pro. .vided a'n upWardl'y-openin check valve 4l supported in any suitable crm of guide 42 ,and preferablyv seatingy lin the openingl through theA centerv of the tplate l1. Rigidly secured'to the top of the`- platevl2, at the center thereof and directly over the outlet passage 40,`is a throttle valve casing 43 for fcontrollingthe escape of explosive mixture.

'from the casing and also for controllingthe dilution of air. 'The casing 1s 'substantmlly tubular in formyvith a horizontal axis, and is provided the explosive mixture by outside.

' munlcating with the passage 40 and conyas casing.

nected to a conduit for delivering the diluted explosive mixture to the engine or other point of disposal. At the end of the valve casing opposite to the outlet 45, is an auxiliary air inlet, and in the top of the casingv oppositeto the inlet 44 is a second auxiliary air inlet. Within the casing is a hollow, cylindrical rotatable throttle valve 46, having openings corresponding to the openings in the casing.Y One end of the throttle valve is open directly to the conduit 45 and Within the valve casing adjacent the outlet end from the throttle valve are a plurality of plates 47 for giving the explosive mixture a' whirling motion as it emerges from the end of the throttle valve and enters the conduit 45. These plates are substantially radially-disposed, but each isinclined at a slight angle longitudinally of the conduit to produce the desired result. The throttle valve at the end opposite to the outlet conduit 45, is1 provided with an outwardly-extending arm 48 carrying'a spring'- pressed catch 49 in engagement with a series of notches in the periphery of an end plate-50 rigidly secured to the throttle valve This end plate along the upper por tion thereof is' spaced from the end of the casing proper to leave room for the arm 48, so that the latter may swing in an arc to r0- tate the throttle valve. The plate 50 is provided With a central aperture 5l and secured to the -outer surface of the plate and 'covering this aperture is a hood 52 provided with a conduit leading from one side thereof to the main air delivering conduit 16. Thus air heated from any suitable source may be delivered through the conduit 16 to the main casing of the carbureter, and a `small portion of the air may be deflected from the conduit 16 through the conduit' to the hood 52 and thence into -the throttlevalvetg dilute the explosive mixture. The delivering of airto the auxiliary air intake from the same source as the air delivered to the main body of the earbureter, constitutes an important feature vof my invention.

For controlling the Vauxiliary air intake, the throttle valve is provided with anopening 54 registering With the opening 5l in the plate 50, and against the inner surface of the end of the throttle valve and coverin this opening is a valve plate 55. The valve plate is carried by a stem 56 and is normally pressed against its seat by a spring 57. The valve stem is threaded through a collar 58 and by rotatin the valve stemthe tension 'of the' spring 5g may be varied to vary the suction pressure required to o en the valve. It is of course understood t at the valve plate slidesl on the valve stem; The collar 58 greerabl extends through an opening in the hoeden. and is rigidly sup Athe slide is l open the sli ported from the end of the throttle valve by two arms 59, 59, one of which is shown in Figs. Qand 5, and both of which are shown in dotted lines in Fig. 6. At the outer end of the valve stem is a head 60, by means of which the valve stem may be adjusted, and surrounding the valve stem and in engagement With the outer end of the collar 58.is a thumb nut 6l serving to lock the valve 'stem in position. The valve as above indicated, constitutes an auxiliary air intake for diluting the explosive mixture, but this valve 1s designed to operate only at medium or high speeds. For diluting the mixture at low speeds, I provide the valve With a slot 62 in the Wall thereof opposite to the main intake, and the casing is provided With an opening corresponding 'to the slot, but of considerably greater dimension lengthwise of the' throttle valve. The valve easing at opposite ends of the opening therein, has lugs 63 and 64, betweenavhich is mounted a slide 65 for varying the effective size of the opening in the throttle valve. The slide is movable lengthwise 'of theeasing between the lugs 63 and 64, and is so constructed that vvhenin engagement with the lugs 64, the

entire opening 62 is uncovered, While when in engagement With the lug 63, is entirely closed. For varying the opening the position of the slide, a threaded rod 66 is provided extending through the two lugs and having threaded engagement with the slide. By rotatinV the rod, the slide is moved longitudinal y. A spring 67 is preferably mounted between one end of the rod and the outer surface of the lug 64, and, preferably'engaged by a iiange 68 on the rod, so that a'jarring action Will. not tend to rotate the rod. The sprin also permits the rod and sliie to be moved ongitudinally to automatically vary the size of theair inlet 62 Without rotating the rod', thus when the engine is running the rod may be moved longitudinally to partially close the opening, and the edect'of this on the speed of the engine, may be noted. If it tends to slow down the en ine,

ge to a furthier extent, While if it tends to increasethespeed of theengine, the rod may be rotated to hold the slide in the new position. `The circumferential length of 'the opening 62 is exactly equal to, the circumferehtial len -h of the main inlet opening at the opposite side of the throttle valve, so that as the throttle valve is rotated, the main inlet and the auxiliary inlet 62 are opened or closed to exactly the same extent, andthe relative croat sectional area of the main inet and the auxiliary inlet re'- muin constant irrespective of of the throttle. l C l For varying the size 'of the mein unile# to the throttle valve, a slide 69 maybe movof the throttle valve to iso the positionable longitudinally the rod may be rotated to vary the length Oftheopening.` Mechanismmay be provided forAoperating thisl slide: similar to that employed for operating the 5 slide 65. As shown, ai threaded rod 70 terminates 4'1in alug 7l at the' outletend of th'e'throttle and has threaded engagement with a vlig-72 carried-by the slide. lThe outer en d ofthe rodv terminates'outside of the Ivalve casingin a head 73, whereby the rod (may be readily rotated tovmove the slide longitudinally. Theslide may be nor,- mall-y held against movement by a spring 74 and may' be guidedby slot-and-pin connections 7 5 to the interior of the throttle valve. Neither 'the movement of the slide G5 nor the slide 69 varies the size of the openings in the throttle valve circumferentially thereof, but varies said openings lon-` gitudinally of the throttle valve. Thus the slides vary the percentage composition of Vthe mixture for any partcula;l position of the throttle, but the movement of the-'throt- .tle varies only the amount and not thecom- 'position of the-mixture. The/throttle valve may carry a seri'es'of plates 76 vdisposed substantially radially and arranged'about the inlet opening 54, and 'each set 4at a slight angle,'so as togive the air entering past the automatic air inlet valve 55,' a rotary or whirling motion. A screen ,77 maybe .provided for preventing the impurities from passing from the pipe 16 into the annularpassageway 15, and a lug 7 S having an adjustable stop 79 may be provided for vlimiting the position of the arm 48 and the throttle valve.

Various changes maybe made in the con-- struction my improved carbureter and within the scope of the appended claims, without departing from the spirit vof my invention. Y

" Having thus described my invention, I;

claim as new and desire 'to securel by Letters Patent:

1. -In a carbureter, a casing, a plurality of vertically'- extending vplates extending' from adjacent the bottom to adjacent the top of said casing forming. a plurality of separate passages, a valve-controlled liquid yinlet'at the bottom of said casing, a float' for controlling said valve, an air-delivery passage extending over a portion of the top of sr id easing, an air inlet at the top of' said casing, and a plurality of air tubes extending through each of. the separate passagesdownwardly from said air-delivery passageand terminating beneath the level of the liquid within said casing and intermediate said plates.

In a carbureter, a substantially cylindrical casing, a plurality of vertically-disposed plates spaced apart and radially disposed within said casing, a' fabric covering for each of said plates, means for .delivering a liquid to said casing and controlling.

the normar liquid? level; and. a malaisesposed rowrofairinlet pipes terminating intermediate-said plates.

3; n az-carbureter, aisubstantially cylin-l dricalbasing, a plurality of vertically-dis- .posed plates spacedapart-and radially dis- -posed Within said casing, a fabric covering for each of said plates, means for delivering a liquid to .said casing and controllingthe Vnormalpliquid level, a radially-disposed row of air-inlet pipes terminating' intermediate said plates-and below thenormal liquid level, and an air-delivery passagede-l livering to-each of said pipes.

' 4. In a'carbureter, a casing, plates spaced apart within said casing, a sleeve about each of said plates adapted to absorb liquid, means for delivering liquid 'to said casing at the lower edges of said sleeves, an air delivery conduit extendingacross the top kof said casing, and branch pipes leading therefrom between said plates, and having their i lowerends terminating adjacent the lower edgesfof said sleeves and delivering upward over the surface of said [sleeve-covered plates, whereby the-liquid on said sleeves is vapor-ized.

5.1 In a earbureter, a casing, an annular.

l`row-of radially-disposed plates forming a y sleeves.

lower end 4of said casing, and a sleeve clonplurality of passages therebetween, means fordelivering a liquid to saidcasmg at the lower end of each of said passages, a tubuilar fabric sleeve inclosing each of said plates and terminating at its lower end within said liquid and means directing air to said fabric 6. Acarbureter havinga casing provided with an outlet opening, a hollow, cylindrical valve r-introlling said outlet, a plurality of radially-disposed plates within said casing, means for delivering a liquid to said plates, means for delivering' air to saidcasing intermediate said platesy and adjacent the centric with said casing at the centerithereof and having a plurality of, passages through which the air may escape to said valve'-` 7. A carbureter having a casing, a sleeve disposed therein and concentric thereto and 1 formed of a 'plurality of separate telescopic 1 sections, each having an aperture therethrough, a plurality of radially-disposed plates surrounding .said sleeve, means for deliveringl a 'liquid to-the surface of said plates, a plurality of air inlets adjacent the lower end of saidcasing and intermediate said plates, and a mixture outlet at the top of said carburetor and communicating with the upper end of said sleeve.

8. In' a carbureter, a easing, a perforated plate closingr the top of said casing, a see-j ond plate within said casing and supported from said first-mentioned plate, a plurality of vertically disposed radially arranged fabric-covered plates intermediate said first In testimony whereof I have signed my and second-mentioned plates and sl'lpported name to this specification nv the presence of 10 thereby, and afplux'elity of' tubes carried two sbseribirlg Witnesses.

by said first-mentioned plateend extending MATHIAS WEIWODA downwardly intermediate said radially-erranged plates, said plates and tubes being .Wtnesses: connected together whereby they maybe rew CLAIR W. FAmBANK,

moved from the casing in assembled form. 4JOHN P. DAVIS. 1

Genies of this uatent may be obtained for yeeents each, by adressing the Commissioner of Patents.

` .Washingten, D. G.

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