US1084954A - Carbureter. - Google Patents

Description

IE. NCE.

GARBURETBH.

APPLwATloN Mmm nov. 25, 1912.

l ,084,954. Fati-med Jan, 2U, 1914.

Z SHIBTBwSHEET l.

E. NICE.

CARBURETER.

APPLICATION FILED Nov.26,1912.

1 ,084,954. Patented Jan. 20, 1914.

2 SHBETS-SHEET 2.

' -of an'internal combustion engine.

Emma NICE, or PHILADELPHIA, PENNSYLVANIA.

caascaam.

Specification ofA Letters Patent;

Patented Jan. 20, 1914.

' Application filed November 26, 1912. Serial No. 733,578'.

To all whom 'it may concern.'

Bc it known that I, Emma NICE, a citi- Zen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Carburetersof which the following is a specification.

My invention relates to, improvements in carbureters, the object of the invention being to provide an improved. mechanism which automatically and simultaneously controls the proportion of liquid and air, and facilitates the commingling of the air anld vapor, so that? a good mixture is theresu t.

A further object is to provide a carbureter with a. plurality of air passages directing the air into contact with' the liquid or vapor, and provide a movable nembei" which simultaneously controls the flow of air through the. passages and also controls the feed of liquid fuel.

A further object is to provide a carbureter of this character in which there is no poslsibility of back tire reaching the liquid fue A further Objectis to provide a carbureter of this character which will be of extremely simpleinexpensive construction, .strong'and durable in use.

With these and other objects in view, the invention consists in certain novel features of construction and emnbinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings: Figure 1 is a view in longitudinal section illustrating my improvements. Fig. 2 is a perspective view of one of the disks 15. Fig. 3 is a view in' cross section on the line 3-3 of Fig. 1. Fig. 4- is a \'ie\v in horizontal section on the line 4-4 of Fig. 1. Fig. 5 is asimilar View in section n the line 5 5 of Fig. 1, and Fig. 6 is a fragmentaryvview in section on the line (5 6 of Fig. 4.

1 represents the cylindrical casing of my improved carbureter, having a bottom 2 secured to the lower end of the casing and a top 3 to t-he upper end of the casing. The top 3 is integral with an outlet tube 4 having an ordinary throttle valve 5 therein, and adapted to be connected to the intake h depending. cylinder 6 is fixed Vtothe top 3 in any approved' manneris concentric with the wall o casing 1, and is provided at opposite sides wit longitudinal slots 7 through which a bar 8 projects. This bar r8, atits ends, is secured to an annular piston 9, and between its ends is secured a rod10.

The rod 10 is guided in its vertical movenzent by means of a `transverse bar 11 secured in tube 4, and this upper portion of the rod is screw-threaded for the reception of nuts 12 located'l at' opposite sides of bar 8, and securing'the bar and rod together. A coiled spring -13 is preferably located aroundl the rod-between bars 1 1 andl 8, and erertsa light' downward pressure upon the piston 9. tra] y on its upper face a circular 'boss 14 having its 'outer wall in line with the outer wall of cylinde'r, it being understood that the lower end of cylinder 6 terminates an appreciable distance above the boss 14.

BetweenV the 'boss 14 and the lower end of the cylinder 6, a plurality of disks 15 are located. These disks are of an external diameter, the same as the external dia-meter of cylinder 6 andboss 14, so that the piston 9 is free to movevertically and is-of an internal diameter just suicient to snugly fit the cylinder 6, the disks 15, and the boss 14. Vhile this-piston may be variously constructed, it is preferably formed with a depending flange 16 which operates to cut oif the spaces between the several disks 15. These disks 15 are spaced apart as indicated. That is to say, the lower disks are closer togther than the upper disks, and the spaces between the disks gradually increase from the lowest diskto the highest disk.

\Vl1ile, of course. various means may be resorted to for spacing the disks, I preferably position blocks 32 between the disks, and then projectv bolts 33 through all of the blocks and througl'ilugsfl on cylinder 6, and screw the lower ends of these bolts into the boss 14.. This construction' is clearly illustrated in Fig. 6. Each disk has an open center,` and'around the opencenter, the disk is provided with a beveled annular The bottom 2 has formed cenflange 17, each successive disk in the series4 105 havinga larger opening and a consequent larger fiange. In other words, the smallest disk has the smallest opening, and fla e, and each successive disk above has a're atively larger opening and ange, so that at exactly suit conditions.

vided at one Side with an air inlet 24, and

its lower end forming a needle valve 158 which controls the ow of liquid fuel from a supply tubc 19 projecting into the center of the boss 14. This supply tube lflis externally screw-threaded to mesh with internal threads in a nut 20. The nut 20 has rotary mounting in a plate 2l, secured t0 the bottom `2 by screws 22, and a hand wheel 23 is fixed to the nut 20, so that when the latter is turned, the tube 19 will be adjusted vertically to time the cut off of -l iquid.fuel to Casing 1 is prowhile this inlet at its outer end is circular to fit n n-ordinary pipe, it gradually changes in form to that of an ellipse as shown at 25, so as to` give the maximum of air inlet space to the casing. In the top 3, a lurality of lvalves 26 normally close ports 2i) in the top `of the casing', and the stems 29 of said valves are mounted to move in lugs 30 on tube 4, and are held in' closed position by coiled springs 31. It is of course to be understood that the piston 9 lits the casing 1 as well as cylinder 6,'but -said listona't lts outer edge is formed with -a lre atively small ange 35 as compared with the -llange 16.

In Fig, 1 the parts are shown in partially open position, the liquid'fuel being drawn through the pipe 19, and the air sucked through the space between the lower disks As the suction increases, the pistonwvill be drawnupwardly and at the same tiibs will enlargethe liquid fuel outlet and al the -air inlet. By reason of the'construction and arrangement ofdisks, it will be seen that ai will flow in all directions from the outside 0%A the disks to the center thereof, and by rea.` son of the flanges 17 t-his air will be directed upwardly in"the direction of the movement of the gas. An increased suction, therefore, increases the amount ,of airover that of liquid fuel. In other words, asthe suction increases, the relati\'e proportion of air over liquid increases. This is due to the increased spaces between the several disks 15. As the suction diminishes, the piston will fall and gradually cutoff the air and then' the liquid. It will be noted that the air will be cut off before the liquid, and-on the reverse movement the liquid supply will be opened slightly ahead of the air, so that the first mixture is rich and' gradually becomes' poorer in proportion to the suction. In case of back fire, the gases will escape through the ports 27, valves 26 opening'to';I permit such escape and prevent any possibilit-y of back lire reachingthe liquid fuel. lVhilc I- uSe the term liquid fuel I would have :it understood that my carbureter is especially adapted for use with gasolene and Asimilar highly volatile liquids such as commonly used in connection with internal combustion .engines 5 f The several lpart-s are capable of a wide liegen range of adjust-ment in accordance with the mixture desired, and various slight changes mig'ht be made in the general form and arrangement of parts described without departing from my invention', and hence I do not limit myself to the precise detalls set forth, but consider myself atliberty to rri'akcv such changes and alterations as fairly fall 'within the spiritand scope of the appended claims.

Having thus described my invention, what I claim as new and desire -to secure byLetters Patent is: y

ing a depending wall terminating short of the bottom ofthe casing and forming un annular piston chamber around the wall, means below the Wall for directing air into the chamber formed in the interior thereof, a piston' around the 'wa-ll movable` relative thereto, said piston adapted to control the flow of air below the'lower end of the wall,

and means .connected to the pist-on cont-roh ling the flow of liquid to th'e space iuclosed by the wall, substantiallyas described.

2. A carburet'er comprising a casing hav the bottom ofthe casing and forming an annular piston chamber around the wall, means below the wall for directing air into the chamber formed in the interior thereof, a piston -around the wall movable relative thereto, said piston adapted to control the flow of air below the lower end of the wall,

a liquid supply tube discharging liquid into the lower end of the casing, and a needle yalve carried by the piston and controlling the'outlet from said supply tube, substantially' as described. l

3. A carbureter comprising ay cylindrical Casing, a concentric cylinder in the casing mg a depending wall terminating short o 1. A carbureter comprising a casing` havformingr an annular chamber between: the

forming an annular chamber between the?f i cylinder and the wall of the casing, a plurality. of disks below the cylinder spaced Aapart and ,communicating with the casing, said casing having an air inlet` a. piston lil.-

tiug the annular chamber and adapted to cut oft' the space `between the disks, said disks having central openings and inclined upwardly projecting flanges around said openings, `substantially as described.

5., A carbureter comprising a cylindrical casigfagconcentric cylinder in the casing forming an annular chamber -lletwec'n thev cylinder and the wall of the casing, a plui largest spaces between the upper disks, substantially as described.

6. A carbureter comprising a cylindrical casing, a concentric cylinder in 'the casing forming an annular chamber between the cylinder and the wall of the easing, a plurality of disks below thecylinder spaced .apart and communicating with the casing,

said casing having an air inlet, a piston fit` ting the annular chamberand adapted to eut ofi' the space between the disks, said disks having central openings and inclined upwardly projecting flanges around said openings, the, openingl in the lowest disk being smallest and in the upper disk largest,

. and the openings in the disks between the upper and the lower disks varying in size in regular ratio, Substantially as described. 7. A carbureter comprising a cylindrical easing, a vconcentric cylinder in the casing` forming an annular chamber between the cylinder and the wall of the casing, a plurality of disks below the cylinder apart and communicating with the casing, said casing having an air inlet, a piston titting the annular chamber and adapted to cut off the spacebet-ween the disks, said disks having central openings and inclined upwardly projecting flanges around said openings. the lowermost disks closest together, and the disks above spaced from those below by increasilner amounts. the smallest spaces being between the lower disks and the largest. spaces between the upper disks, the opening in the lowest disk being smallest and in the upper disk largest, and the openings inI the disks between the upper and the lower disks varying in size in regular ratio. substantially as described.

8. A carbnreter comprising a rvlind'rical casing, a concentric c vlinder in the casing forming an annul'ar chamber between thc cylinder and the wall of the casing. a pluralitv of disks below the cylinder spaced apart and conunuuicating with the casing. said casing having` an air inlet. a piston litting the annular chamber and adapted to cnt ott' the space between the disks. a liquid supply pipe communicating with the center of the lower-most disk. and a needle valve carried bv the piston and controllinghe outlet from said liquid supply pipe. substan tially as described.

9. .i carbureter comprising a cylindrical spaced casing, a concentric cylinder in the casing forming an annular chamber between the cylinder and the wall of the casing, a pluralitv ol disks below the cylinder spaced said casing having an air inlet, a piston fitting the annular chamber and adapted to cut otl' the space between the disks, said disks having central openings and inclined upwardly projecting flanges around said openings, a liquid supply pipe communicating with the center of the lowermost. disk, and a trolling the outlet from-said liquid supply pipe. substantially as described.

10. A vcarbureter comprising u cylindrical casing. a concentric cylinder in the easing forming an annular chamber between the cylinder and the wall of the casing, a plurality of disks below the cylinder spa-ced apart and con'nnunicating with the casing, said casing having an air inlet, a.piston titting the annular chamber and adapted to cut off the space between the disks, said disks hawing central openings and inclined upwardly projecting flanges around said openings, the lowermost disks closest together, and the disks above spaced from vthose below in relative ratio, .the smallest spa-ces being between vthe lower disks and the largest spaces between the upper disks, a. liquid supply pipe communicating with the center of the lowermost disk, and a needle valve carried b v the piston and controlling the outlet from said liquid supply pipe, substantially as described.

1.1. AA carbureter comprising a c lindrical casing, a concentric cy inder in t e casing crming an annular.- chamber between the cylinder and the wall of the casing, a plurality of disks below the cylinder spaced apart and communicating withthe casing. said casing having an air inlet. a piston titting the annular chamber and adapted to cut 4oil the space between the disks. said disks liiving central openings and inclined npwardly projecting flanges around said openings. the opening in the -lowest disk being smallest and in the upper disk largest, and the openingsY in the disks between the upper and the lower disks varyinginsize in regnlar ratio. a liquid supply pipe communicating with the center of the. lowermost disk, and a needle valve carried by the piston and controlling the outlet from said liquid supply pipe, substantially as described.

l.Y earbureter comprisinga cylindrical casing. a concentric cylinder in the casing forming an annular chamber between .the

cylinder and the wall of`thecasing. a plu rality of disks below the cylinder spaced apart and communicating with the casing. said casing having an air inlet, a piston itting the annular chamber and adapted to cut i ofl1 the space between the disks, vsaid disks apart and communicating with the casing,

needle valve carried by the piston and conlof! '1 those below' by -increasing amount s, the

having central openings and inclined upsmallest spaces' being between the lower wardly projecting flangesaround sa-id-opendisks and the largest spaces between the upings, the lowermost disks closest together, per disks, a liquid supply pipe communicatand the disks above spaced from those below ing with the center of the lowermost disk,

by increasing amounts, the smallest spaces saidcylinder havingslots in its opposite being between the lower disks and the largest walls, a bar projected through said slots spaces between the upper disks, the opening and secured to the piston, and a needle valve inrthe lowest disk being' smallest and in the secured centrally to the bar and controlling ,upper disk largest, and the openings in the the outlet of liquid from the supply pipe, disks between the upper-'and the lower disks substantially as described. 75 varying in size in' regular ratio,.a liquid 16. .l earbureter coniprising a cylindrical supply pipe communicating with' the center easing, a concentric cylinder in the casing of thelowermostdisk, and a needle valve forming an annular chamber between the carried by 'the piston and controlling the' cylinder and the wall of the casing, a pluoutlet from said liquid sllpply'pipe, substanrality of disks below the cylinder spaced 80 t-ially as described.. l apart and communicating with the casing,

13. A carbureter comprising a cylindrical said casing having an air inlet, a piston fitcasing, a concentric cy inder in the casing ting the annular chamber and adapted to forming' an annular 'chamber Abetween the eut off the space between the disks, said cylinder and the wall ofthe casing, a pludisks'"having central openings and inclined 85 rality of disks below lthe cylinder spaced upwardly projecting flanges around said apart and communicating with the casing, openings, the opening inthe lowest disks said casing having an air inlet, a piston-fit being smallest and in the upper disk largest, `ling' the annular'chamber and adapted to cut and the openings in Vthe disks between the oil the space between tnedisks, a liquid supupper and the lower disks varying in size, 9o ply pipe communicating with the'center 0f in regular ratio, a liquid supply pipe cornthe lowermost disk, said -cylinder having municating with the center of the lowermost slots in its oplpositc walls, a. bar .projected disk, said cylinder having slots `in`its oppotb rough said s ots and secured to the piston, site walls, a bar proj ectedA through said slots and a needle valve secured centrally to the and vsecured to the piston, and a: needle valve bar and controllin the outletlof liquid from secured centrally to the bar and controlling the supply pipe, su stantially as described. the outlet of liquid from the supply pipe,

14. A carbureter com rising a. cylindrical substantially as described. easing, a concentric cy inder in the casing 17; A carbureter comprising a cylindrical l forming an annular chamber between the casing, a concentric cylinder in the casing -100 cylinder and the wall of the casing,l a pluforming an annular chamberV between the rality of disks below the cylinder spaced cylinder and'the wall -of the casing, a pluy apart and communicating with the easing', rality of disks below the cylinder spaced said casing having anlair inlet, a piston 4apart and communicating withthe casing, fitting the annular chamber and adapted to said casing having an air inlet, a piston f iteut oil' the space between the disks, said disks ting the annular chamber and adapted to having central openings and inclined up cut off the space between the disks, said wardly 'projecting' flanges aroundsaid opendisks having central ope'nings and inclined ings, a liquid supply pipe communicating upwardly projecting flanges around said 'with the center of the. lowermost disk, said openings, the lowermost disks closest to- 110 vlinder having" slots in its opposite walls, gether, and the disks above spaced from a bar projecte through saidxslots and se# those belo\v by, increasing amounts, the cured to the piston, and a needle valve sesmallest spaces being between the lower lcured centrally to the bar and controlling disks and the largest s'p'aces between the upthe outlet of liquid'from the supply pi', e, per disks, the opening inthe lowest diskbe- 115 substantially as described. i ng smallest and in the upper largest, and

15. A earbureter comprising a cylindrical the openings in the disks between the upper easing, a concentric cylinder in .the casing and the lower disks varying in size-'inreguforming al1-annular chamber between thelar ratio, a liquid supply pipel communicatcylinder and the wall of the casing, a 'pluling with the center of theflowermost disk, '120 rality of disks below the cylinder spaced said cylinder having slotsin, its opposite' apart and communicating with the easing, walls, a bar projected through 'said' slots .said easing having an air inlet, a piston titand secured to the piston, and a -needle valve ting the annular chamber 'and adapted to secured c'htrlly to the bar and controlling cut off the space between the disks'said the'outlet of liquid from the supply pipe,4 125 disks having central openings andinclined substantially as described. upwardly projecting -flanges around said 18. A carbureter comprising a cylindri' openings. the lowermost disks closest tocal casing, a concentriccylinder i'n-the casgether. and the disks above spaced from `ingformi'ng an annular chamber.' between;

the cylinder and-thewall of the casing, 130

'plurality of disks below the cylinder spaced apart and communicatingr with the casing, said casing having an air inlet, a piston fit ting the annular chamber and adapted to 1 cut off the space between the disks, a circular boss on thc bottom of said casing below the disks of the same diameter as the disks and the cylinder, and against which said piston is adapted to bear to cut ofi1 the flow of air to "he disks, substantially as described.

19. A .garbureter comprising a cylindrical casino, a concentric cylinder in the casing forming an annular chamber between the cylinder' and the wall ot' the casing, a plu. rality of disks below the cylinder spaced apart and communicating with the casing, said casing having an air inlet, a piston fit;v

ting the annular chamber and adapted toi cut off the spa between the disks, said disks having central openings and inclined upwardly projecting flanges around said openings, a circular boss on the bottom of said casing below the disks ot the same diameter as the disks and' the cylinder, and against which said piston is adapted to bear to cut off the flow of air to the disks, substantially as described.

20. A carbureter comprising a cylindrical casing, a concentric cylinder in the casingr i forming an annular chamber between thecylinder and the wall of the casing, a plurality of disks below the cylinder spaced apart and communicating with the casing, said casing having an air inlet, a pistou fitting the annular chamber and adapted to l cut off the space between the disks, said disks i having central openings and inclined upwardly projecting 'flanges around said opcng ings, the lowermost disks closest together,I

and the disks above spaced from those below by increasing amounts, the smallest spaces being between the lower disks and the largest spaces between the upper disks, a l circular boss on the bottom of said casing 5 below the disks of the same diameter-'as the disks and the cylinder, and aga-inst whicli said piston is adapted to bear to cut off the flow of air to the disks, substantially as described.

21. A carburetor comprising a cyli drcal casing, a concentric cylinder in vtheicasing forming an annular chamber between the cylinder and the wall of the casing, a plurality of disks below the cylinder ispaced apart and communicating with the casing, i

said casing having an air inlet, ay piston fittingthe annular chamber and adapted to cut oif the space between the disks, said disks having central openings and inclined upwardly projecting flanges around said openings, the opening in the lowest disk being smallest and in the upper disk largest, and the openings in the disks between the upper and the lower disks varying in size in regular ratio, a circular boss on the botsaine diameter as the disks and the cylinder,-

and against which said piston is adapted to bear to cut off the flow of air to the disks, substantially as described.

2Q. A carbureter comprising a cylindrical casing, a concentric cylinder in the casing forming an annular chamber between the cylinder and the wall of the casing, a plurality of disks below the cylinder spaced apart and communicating with the casing, said casing having an air inlet, a piston fitting the annular chamber and adapted t0 cut oit the space between the disks, said disks havingr central openings and inclined upwardly projecting flanges around said openings, the lowermost disks closest together, and the disks above spaced from those below by increasing amounts the smallest spaces being between the lower disks and the largest spaces between the upper disks, the openingV in the lowest disk being smallest andin the upper disk largest, and the openings in the disks between the upper and the lower disks varying in size i in regular ratio, a circular boss on the bot- `r tom of said casing below the disks of the same diameter as the disks and the cylinder, and against which said piston is adapted to bear to cut off the low of air to the disks, substantially as described.

23. A carbureter comprising a cylindrical casing, a concentric cylinder in the casing forn'iing an annular chamber between the cylinder and the wall of the casing, a plurality of disks below the cylinder spaced apart and communicating with the casing, said casing having an air inlet, a piston fitting the annular chamber and adapted to cut off the space between the disks, a liquid supply pipe communicating with the center of the lowermost disk, said cylinder having slots in its opposite wall, a bar projected through said slots and secured to the piston,

ward and away from the valve, subai/tially as described. f,

24. A carbureter comprising/a/cylindrical casing, a concentric cylinder in the casing ,forming an annular chamber between thc cylinder and the wall of the casing, a plurality of disks below thecylinder spaced apart-and communicating with the casing,

said casing having an air inlet, a piston fitting the annular chamber and adapted to cut off the space between the disks, said disks having central openings and inclined by increasing upwardly projecting flanges around said openings, a liquidsupply pipe communicating with the center of the lowermost disk,

sald cylinder havingslots in its oppositel Walls, a bar projected throu 0rh said slots and secured to the piston, a needle valve secured i centrally to the bar and controlling the outthreads of the supply pipe, and means for turning said nut whereby the suppl pipe is substantially as described` openings iri the disks between the upper and the lower disks varying in size in regular rato,/a. liquid supply ipe communicating with the center of the owermost disk, said cylinder havin slots in its opposite Walls, bar projected t lrough said slots and secured to the piston, a needle valve secured centrally to the bar and controlling the outlet of liquid from the supply pipe, said supply pipe externally screw-threaded, a nut swiveled in the bottom of said casing and having internal screw-threads engaging the threads A K n 5 of the supply pipe, and means for turning adjusted toward and away from tie` valve, i

25. A carbureter comprisinga c lindrical casing, a concentric cylinder in tie casing forming an annular chamber between the cylinder and the wall of the casing, a plurality of disks below the cylinder spaced apart and communicating with the casingM said casing having an air inlet, a piston fitting-the annularchamber and adaptedl to i cut off the spaces het een the disks, said disks t having central openings and inclined upwardly projecting flanges around said openj' ings, Ythe lowermost disks closesttogether,

and the disks above spaced from those below amounts, the smallest spaces being between the lower disks and the largest spaces between the upper disks, a liquid supply pipe-communicating with the center of the lowermostdisk, said cylinder having slots in its opposite walls,a bar projected through said slots and Secured to the piston, a needle valve secured centrally to the bar and controllingthe outlet of liquid from the supply pipe, said supply pipeexternally screw-threaded, a nut swiveled in the bottom of said casing and having internal screw-threads engaging the threads of the supply pipe, and means for turning said nut whereby the supply pipe is adjusted toward and away from the valve, substantially as described.

26. A carbureter comprising a cylindrical casing, a concentric cylinder in the easing forming an annular chamber bctweeithe cylinder and the wall ol the casing, a plu rality of disks below the cylinder spared apart and con'nnunicating with the casing, said casing having an air inlet, a piston fitting the annular chamber and adapted to cut olf the space between the disks, said disks having central openings and inclined upwardly projecting flanges around said openings, the opening in the lowest disks being smallest and in thc upper disk largest., and the said nut whereby the supply pipe is adjusted toward and away from the valve, substantially as described.

2-7. A carburetor comprising a cylindrical casing, a concentric cylinder `in the casingl forming an annular chamberbetween the cylinder and the wall of the casing, a plurality of disks below the cylinder spaced apart and communicating with the casing, said casing having an air inlet, a piston titting the annular chamber and adapted to cut olf the space between the disks, said disks having central openings and inclined up wardly projecting flanges around said openin\gsthe,lowermost disks closest together,

and/the/disks above spaced 'from those below in relative ratio, the smallest spaces being between the lower disks and the largest spaces between the upper disks, the opening in the lowest disk being smallest, and in the upper disk largest., and the openings in the disks between the upper and the lower disks varying in size in regular ratio, a liquid supply pipe communicating with the center of the lowerxnost disk, said cylinder having slots in its opposite walls, a bar projected through said slots and secured to the piston`I a needlevalve' secured centrally to the bar and controlling the outlet of liquid from the supply pipe, said supply pipe externally screw-threaded, a nut swiveled in the bottom of said casing and having internal screw threads engaging the threads of the supply pipe, and means for turning said nut, whereby the supply pipe is adjusted toward ,and away from the valve, substantially as described.

ln testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

R. H. KRENKEL, Cnas. E. Po'rrs.

Images