US2603467A - Carburetor - Google Patents

Description

I y 15, 1952 w. R. KUTlK, JR, ETAL 2,603,467

CARBURETOR Filed ma :5, 1949- 2 SHEETS-SHEET 1 m m! M m I n M m J m m 4 m WJ y 15, 1952 w. R. KUTIK, JR., E'IAL' 03,467

CARBURETOR I22 gq Fig. 3.

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g .98 Fig 6 9 r70 75 -64 '7 N 74 7 44 Inventors C 54 4 William R. Kufilr, Jr. 7? 58 52 Jack Goodman 46 k 42 lim Patented July 15, 1952 UNITED] STATE S PATENT im:-

' CARBURETOB William Kutik,*-Jr., Butler, and ack'Goodman FairLawmNrJ. r

Application May 3, 1949, swim, 91,114

,tliefuel. u y Another important object 'of this invent on- 15 to'agitatefand breakup the liquid fuel into a finely; divided vapor by mixing air with the fuel at various stages, and agitating the vapor laden air whereby the'charg is concentrically treated before entry.

3 Claims. (01. 261- 21.

A meritoriousjfeature 'ofthis invention'resides in the provision, of a device having means-for saturating air witl'i'liquid fuel; and agitating the air, at'each change of the air mixing Staga'until the air is delivered for ignition in' a c i i divided vaporized state. j

Another object of, this invention is to provide a vaporizing device, which is simply and compactly constructed, which is easy to install for' use in-an internalcombustionngins, and whichiis durable and eminent in operation: v

These a'ncilla'ry objects and other structural features of'mer'it are obtained by thisinvention, a preferred embodiment of which is set forth m the following description, and illustrated inthe a accompanying'drawings, where; v I

Figure 1 is aside'elevation'al view'of-a device, constructed in accordance with the principles of this invention;

Figure 2 is a bottom "plan view-thereof; "Figure3vis avertical sectional'view; j

Figure 4 is a transverse sectionalview, taken on a line 4-4 of Figures;

Figure 5 is an enlarged detail sectional view, taken on aline" 5-5 of 'FigureS;

Figure 6 'is an enlarged detail View, taken on a line 6-45 of Figure4; I

Referring now'inore particularlyto the drawings, this invention generally designated bythe A needle-valved B "is' disposed'in the'passage 'lli and adapted to' seat in the valve seat 22. The needleva'lve'inclu'des a stem 30, which is'disposed through the passage 2o'andsterminates in'aneX- ternally threaded end 32,the latter being disposed through the opening l8 in the cap. Afloat-'34 is concentrically 'slidably disposed on the 'stemaof the needle valveand' the upward movement ofthe float :thereof is controlled by an' adjustment nut 36' engagedon the threaded shank 32 of the stem.

' The-fuel'zhousin I2 is communicated with and forms a partof the carburetor 38. Conduitmeans 40 extends between the fuel housing .andth'eouter wall 42 of the. carburetor. The "carburetor includes a casing or housing; about which is concentrically disposed'the outer wall 42, the latter being. spaced from the outer surface ofthe housing 44 to define" an 'airchamber and fuel chamber 461: The lower en'cl'ofthe housingi44=isopen; the housing terminating in a lateral annular'flange 48swhich is engaged at its outer extremity "in an annular recess 50 formed at thelower endof the wall42; whereby a, sealed joint isformed between thehousing and the;,wall 42-at the lowerend thereof. A- cap 52; is formed with annular internally threaded flange 54, the latter being threadingly disposed on the externally threadedend 56 of the'wall 42,-with a sealing rin 58 providedand disposed.- between the cap and the flange 48 of the wall s e b.1 e.

The-wall terminates at its upper endin'an inwardly v directed "laterally disposed annular flange Gi; which is "concentrically disposed and engaged on the outer surface wall of th housing 44. The flange 62 is formed with a plurality of circumferentially spaced air inlet tubes 641 where'- by air is admitted into the chamber 46, theliquid 7 'flan'ge '42 passes downwardly in the chamber'46 character reference" It), includes a liquid fuels housing]! formed with an open {internally threade'djupper end, which is closed by a, detachable cap l4, having a centervertical opening I6.

'The' housing terminates 'at its lower end in a'coaxially reduced extension I8," the latter being formed with a centrally disposed'verti cal passage 20,"'which'terminates' in a valve seat 22; A fuel intake line '24 is secured to the enlarged passage 26", communicatedwith' the" valve seat 22, and formed at the outer end oftheextensiom and mixeswith the raw fuel, whichflis're'tain'ed'at the loweren'd. A plurality'of vertically disposed tubes 66 "are disposed in the housing 44 "and are formed at their'upper ends'withannularextensions 6 8-, Theextensions'fill'extend through the wall of the'housing 44 and communicate with the chamber 46 at the upper end thereofif Thus", the fuel ladenair rises in the chamber 46 'andis drawn throughthe tubes '66 into the interior ofthe housing 44; The dispersing'mean's l0 includesachamber iformed by the housing 44' and'is completely fllled'with" a materialfflz, such as "steelwo'ol oria similar material which can be employed fondis- 'persin'gth'e fuel laden air into an extrem'elyfinely Y divided; 'vaporous condition'during the "progress threadedopposing discharge end 82.

therethrough and operates as a filtering medium.

The upper end of the housing 44 terminates in a coaxially reduced internally threaded coupling end 14, which is attached to an offset extension 16 of an intake pipe 18. The offset extension 76 extends inwardly of the pipe 18 and forms a nozzle 80, substantially closed at one end and terminating in an externally A nozzle tip 84 having a discharge passage 86 formed therein is threadedly disposed on the discharge end 82-of the nozzle. Y slidably disposed in an opening 963 at the end 80 of the nozzle and terminates in a needle valve 92 which is disposed in the passage 86; in

the tip. An actuating rod 94 is rotatably disposed transversely through the extension 16 and A throttle valve 88 isthe rod 94 by fastening 4 means and the fuel laden air is agitated to a finely dividedstate. The air then is admitted into the air intake pipe 18, through the throttle valve, where it is mixed with the intake air which is admitted through the end H2; by the automatic control means provided. 7 The passage of the fuel laden air into the air intake pipe causes further dispersion of the fuel laden air. The mixture is then'delivered through the pipe 18 to the ignition point.

\ 'Thus, it can be seen that there is provided a novel and durably constructed carburetor, whereby raw liquid fuel is converted into finely divided vapor and the finely divided vapor is admitted to the ignition point, so that a quick and clean combustion is obtained and the utmost energy is obtained from the fuel.

alin'ementwiththe' fuel discharge nozzle., ;.Th 1.,

plate permits a convenient andiquickladjustment of the internal structure of the nozzle orfuel control means;

The vaporized fuel and vapor laden airiis admitted into the pipefTB through the nozzldtip 84 and is mixed with a secondary source of air.

Theair is sucked in through'the'end Ill-of the 'air intake pipe 18. A valve ll4 is pivotally disposed adjacent the end I 12.01? the air intake pipe and ismounted onia rod H6 transversely jour naled'through the pipe. A plate II8Lis secured on thefiouter extremity of therod H6 at .0118 end and is secured to a coil spring I20 at the other end. An s-shaped'bracket lzz is mounted on the upperportion of the pipe -and extends upwardlyabove the plate -I I8; Asorew I24 is c ar ried by the bracket and is adapted to receive the upper end of the spring IZO." Thus, the valve 1 i4 is normally retained in a vertical position, closing ofi the air intake pipe 78. However; the-valve H l isautomatically controlled by the vacuum and is opened thereby to automatically admit a supplyof air. Of courseftheair intake tube 78 discharges; the -fuel to the ignition point through theifloattli and needle valve. 28', thus when thedesired amount of liquid fuel is disposed within the, fuel housing the float is raised andcorrespondinglymoves the needle valve into its seat preventing the'fadmiss'mn of furtherlfuel. The r fuel isconducte'dby the communicating pipe 59* to thechamber '46 and is maintained at the bottom thereof. This point. is the closest point that the raw fuel gets ltO theignition point. Air is inner wall spaced radially inwardly from the inner periphery of the outer wall to define an air andf uel chambeninlet means at the upper end of the casing member extending into] the chamben-{a source. or fuel including a sup-ply nipple extending through the lower [end of said outer wall and into the-chamber, a plurality of circumferentially spaced vertical tubes disposed within the inner wall .and having lower ends spacedabove the bottom'of the casing member,

saidtubes including upper inclined ends extending through saidinner wall and into the chamber at the upper end'thereof to receive air entering the chamber through said inlet menasfan ab-' sorbent material disposed within said inner wall,

and a valve' controlled inlet passageway contively opening and closing the'inlet opening of said:h'ousing, said float being slidably supported onsaidrod, and an abutmentthreaded on the rod 3. In a carburetor, a verticalfcasing,menrber including inner and outer cylindrical walls joined-at their endswith the'outer periphery of the inner wan spaced radially inwardly fromthe inner periphery of, the outer wall. to define .an air and fuel chambe 'inletmeansjat. the upper end of the casing member extending into the admitted through theair inlet tubes into the I chamber lfiatapoint below the level of the fuel and mixes with they fuel in the bottom portion,

thereby agitating the, fuel. ,The vapor laden air then rises to the chamber'and is drawn through the tubes 66"intothe dispersing meansf The air, then passes thru the chamber 10 of the dispersing chamber, a source of ,fuel including a supply nipple extending throughthe lower'end of said outer wall and into, thev chamber, a plurality of circumferentially spaced vertical tubes disposed within the inner wall and having lower ends spaced above the. bottom ofthe casing member, said tubes including upper inclined ends extending through said inner wall and into the chamber at,-the upper end thereof to receive air entertlfefbhamber ithroughwsaid inlet means, an

absorbent material disposed within saidjinner a t'an -sha ed'i l t p pei vinga portion disposed alongside'of said casing member 'and'a portion extending horizontally over said casing member, a passageway formed with the horizontal; portion of said pipe and extending down- .wardly therefrom iand coupled to the upper end of 'saidJinner Wall, said passageway having' an I 5 upper end positioned in the horizontal portion of said pipe, a nozzle attached to the upper end of said passageway, and a valve controlling the passage of mixture outwardly through said nozzle from said passageway. 5

WILLIAM R. KUTIK, 'JE. JACK GOODMAN.

REFERENCES CITED 10 The following references are of record in the file of this patent:

UNITED STATES PATENTS Number

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