US1130490A - Carbureter. - Google Patents

Description

f ,RL DEL-AUNAYQBELLEVILLE.

GARBURETEE, APPLIoATIqN\HLB1 MAB. a1. 1913A Patented Mar. 2;

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Specification o1' Illeters Application filer? Tieren 3l,

T0 all whom it may concern Be is lznown ihnt l, Bonner Demone?- Bnnnnvlniin, citizen of the French Republic, residing at Slt-Denis, Eepsrinent ci lzlie Seine, in France, have invented certain nei* and useful improvements in and Relating te Ceroureters for' lnernal-Comloustion Engines; und l do hereby declare the following to he full, clear, and eimer description of' the invention, such es'vvill enable others skilled in che ort to which il; epperteins lo make and use the seine.

rlhe invention relates io eerhuregers, and has for its object to provide n. carburetor in which the supply of fuel Will he euometically` controlled to insure a miniere of er and fuel in e constant proporci/on Wherever the speed of the engine may he.

The invention consists in providing,r two sets of nozzles one of which discharges in the direction ol' the suction nir curreniy and the other discharges in the direction opposite lo said current. lt is evident that the discharge from the nozzles in the letter casel is reerded by the action of the oir curreniL end the higher the vacuum the greater the velociicy, end consequently 'the greater 'the degree of rterdotion will he .vhile 'che discharge 'of uhe nozzles in the direction of the suction air curreni'I increases, :is usuel, willi the vacuum.

In the accompanying drawing: Figure l shows, by wey of example, e section 'ihrough e corbureter provided with a device for con-` trolling the fuel according to the invention. 2 shows :i modification thereof. Fig. 3 shows one form of the upper end of the nozzles. Fig. #L is asection on line ,ll-A of Fig. 3.

lin Fig. 1 it is assumed tha one nozzle only is used :1nd whichY is provided with two orifices; one discharging in the direction ol' the air current and the other in the opposite direction.. The tube' l supplied with fuel from the constenlJ level reservoir 2, dischargesinto the suction pipe 3 connected to the 'cylinders or' ihe engine. The suction pipe 3 has e conical restricion 4 in tended to increase the velocity of Jche air current in the vicinity of the fuel supplying Atube l; said pipe being further provided with e. butterly valve 5 or any other gas throttling device, above the 'tube l. This nozlzle, is bent et its upper end in sncli e ".5, Mld isis. sensi no. esseci.

branch e sirens downwardly end nsrellel lo elle rohe ll. 'l'lriishrench is l provided, el'. iis end, Wish oriice 'i oi suitelile dienieaer, `ilse eend .losing else gore* vided, et re highest point with en o'reefil.

'.lhe opersilion of the device is es fellows; @Wing to the snoeien, the fuel :rises in ,il-he bend of he tnlie flows through the orifices T and 8. The ouifpni: of the orifice 7 of ihn nozzle diminishes in proportion es the vecunrn increases hecause the jet] of liquid leaving oy this orifice is retarded on leaving .hy the ascending; air current end the Adegree or" resrdetion is greater the higher the de grec of vacuum end consequently the greater the velocity of the sir. The upper orifice 8 discharges, on 'she contrary larger quoniity of fuel as 4che vacuum increases, es in .the

rse or' ordinary/'nozzles will he evident that the orifice 7 produces o rich mixture when the engine is running at loW speed and the opposite result will he produced by the oriice 8. li may happen that the air velocity may become so great that no fuel Will leave through the lower orifice 7, in this case cir will enter the branch 6 will escape together with the fuel, through the oriice 8.

le is evident thetliy appropriately ad justing the orifices T Iand 8 and their rela.- tive v positions with rcgerd to the fuel level und io the restriction in the suction pipe, it

is possible to obtain e compensating' elect which will maintain the composition oi the y mixture constant wherever the speed of the engine only he. v I V lo Fig. l, the orifices .7 and .8 are situated, :it different levels' if il; is desired tov place them on the seme level then the arrange nient shown in Fig. 2 is used. lin this form, two nozzles :irc employed, one being shown zit l and having o, i'uel delivery oriiiceat 8', from which iuel is delivered in -loe direc'e tion of the oir current. end e second nozzle shown :it l having n. foei. delivery orifice 7 to deliver the fuel in sin opposite direction to the oir current. lt will he understood that in the form shown in both Figs. l and 2, the fuel delivery orifices should be situated alcove the norinsl fuel level.

ln n general manner7 any number of orilices may loe directed downwardly, e nozzle according to Figs. 3 and 4 is then used which is Yiorovided with certain number of passages 7 directed downwardly and only lOf , 39521@ can be multiplied and cvfel multiple .cuh and auc injccting means, associa-ccd

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