US382585A - Carbueetoe - Google Patents

Carbueetoe Download PDF


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US382585A US382585DA US382585A US 382585 A US382585 A US 382585A US 382585D A US382585D A US 382585DA US 382585 A US382585 A US 382585A
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    • F02M3/00Idling devices for carburettors
    • F02M3/08Other details of idling devices
    • F02M3/10Fuel metering pins; Nozzles


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PATENT' Ormea?? BADEN, GERMANY, AssiGNoB 'ro BENZ aco., oEsAMEBLAcE. e.
SPECIFICATION forming part of Letters Patent Nofaaases, dated May 8.-,1ae8.
Application filed October 24, 1887. Serial Nol253,199. (No model.) Patented in France March 25. 1886, No. 175,027, and in England April 2B, 1886, No. 5,789.
.To all whom it may concern.; s
Beit known that I, CARL BENZ, a subject
v the Grand Duke of Baden, and a resident of' Mannheim, in the Empire of Germany, have invented certain new and useful Improvements in a Carburetor for Operating a Motor for Vehicles, (for which I have obtained Letters Patent in England, No. 5,789, dated April 28,1886,
and in France, No. 175,027, dated March 25,
4io 1886,) ofwhich the following is a full and clear description.
The invention has for its object to overcome the injurious effects exercised upon the generator by the shaking or jolting fof the vehicle, to be able to construct the generator of the lightest material possible, and to prevent an explosion or combustion of the whole gasstore; and the invention consists in the arrangement of disks inside the generator proper 2o above 'the levelV of the iiuid, preventing the movement of the fluid but allowing the vapors to pass through such disks, in a device for equalizing the pressure within and outside of the generator, and in a peculiarlyconstructed 2 5 gas and air mixing chamber.
These improvements are shown in the accompanying drawings, in which- Figure 1 is a sectional elevation of the gasgenerator on line .rw of Fig. 2. Fig. 2 is a 3o transverse sectional vview on line y y of Fig. 1. Fig. 3 shows the gas and air mixing chamber in a longitudinal section. Fig. 4 is a similar view of a modified construction of the mixingchamber. Fig. 5 is an enlarged side view of 3 5 part of the feed-valve from the tank or reservoir. Fig. 6 is an end view of the same, and
Fig. 7 is a complete side elevation of my gasgenerating apparatus in connection with a motor having a horizontally-mounted workingcylinder.
Similar letters of reference indicate similar parts throughout the several views.
In the drawings, D is the tank lled with benzine, ,gfasolinapetroleum7 naphtha,or simi v4 5 lar evaporative oil, and being mounted on suitable standards, d, von top ofthe generator A C.
The tank D may be of any shape whatever, f and it needs not stand on the generator; butI prefer to mount itin that manner, since there tom, standing in connection with the sliding is generally but tile 100111 on the vehicle. `5er:
Fo'riillingthe tank .or reservoir D, it is priovided with Van orice closed by a' screw-cap, n.1' Besides that it hasfrecess d', of circular or cylindrical form,on its lower side,inade to correspond tothe size ofthe cover V of the gen- 5 5 eratr-vessel,being situated below, so that the 'cover V may enter into said recesswhen being raised or lifted. A pipe, o, is led from tank D to and into a gage-glass, p, said pipe having aregulating-valve, x, and a stop-cock, l g., Thespindleuof.theregulating-valvepasses` throughthe tank D,and is provided with screwgL n threads u2 near its lower end, by whichwit is E secured in and guided through a small hinge-.H like support, r, being fastened to the bottomjg y ofthe tank. The point or end of spindle-'aisv provided with'a radial groove, fand tits'intof` the upper end of' pipe o. The lowerl part off? this feed-valveis surrounded by a perforated cap,"t, for retaining all impurities of thefoil and preventing them from entering pipel o.
The generator consistsof two vessels, Aand C. Vessel C is inserted or hung up in vessel A, nearly touching the bottom of the latter. Vessel A has a recess or dome, A', at its botvalvelcase G of the motor' H by a pipe, b, as shown in Fig. 7, pipe b being broken away near its ends. The dome is also provided with an outlet-port, c, near its bottom,rfor the escape of the waste gases coming through pipe b from the sliding valve-box G. The outside cylinder, A, is also provided with a screw= valve, h, with slits h for the entrance of air. To'the top of said dome A is secured a stud, b', being provided with several disks, B, of sheet metal, being slit radially, and the radiA ating wings so formed are bent into an inclined position,-resembling the sails of a windmill. The lcover V of cylinder G is constructed to l9o serveas a safety-valve, and is provided witha t shaft or pin, o', passing through the same and through a hub or neck,'tc', of vessel O, and be, f ing provided with a spiral springf, larranged and constructed to keep the coverfirmly upon 95 the generator at ordinary pressurewithin the generator. lL y 'I he outsidecylinder, A, of the generator` is vof connected to the gage-glassp by two short pipes, s and s, the one entering said glass near its top, the other at the bottom end. Pipe sis also in communication with generator C by a very thin pipe, i. A pipe, g, leads from the top end of generator C to the mixing-chamber F,which is necessary for the production of the explosive mixture. This mixing-chamber I may construct in two ways. That one shown in Figs. 3 and 7,consists ofthe mantle orjacket F, being provided with a projecting pipe, f, having small openings 7c and a screw-cap, m, and of a pipe, Z, being inserted in said jacket and leading to the sliding valve-box G of the motor. This pipel is also provided with perforations p inside the mantle F, which latter may be divided in two parts by a partition, f.
ln the construction of the mixing-chamber shown in Fig. 4 the pipe g, coming from the generator, enters the jacket F, and is closedat its end,and is perforated in same manner as pipe Z of Fig. 3. Thejacket F in this case has no projecting pipe, but is perforated itself near the end at which pipe g is guided into it. To the opposite end ot' the jacket is connected pipe?, leading into the sliding valvebox g in same manner as shown in Fig. 7.
The mixing apparatus as first described I preferably employ in such cases where my gasgenerating apparatus is used for working a motor having a horizontal cylinder, while I prefer the construction of said mixing-chamber,as illustrated by Fig. 4, in connection with an upright standing motor.
After having thus described the construction of my apparatus, I shall now proceed to explain the manner in Vwhich this apparatus is operated,which is as follows: The evaporative oils, being tilled into the reservoir I), will run through pipe 0 and gage-glassp into the generator C and the surrounding cylinder A when feed-valve u and stop-cock g are widely opened. This I do before starting the machine, which has to be fed from my generator, and I allow the oils to. flow into the generator until the level of the fluid is about as high as is shown in Fig. 1 of the accompanying drawings. I then close stop-cock q and regulate feed-valve u, so that the liuid can only enter the pipe o in drops-i. e., in proportion to the quantity of oil being evaporated in the generator C. The oils consist, as already told, of benzine, ligroine, or the like hydrocarbons which already commence to evaporate at ordinary temperature-that is, at about 65 to Fahrenheit. The vapors will pass up in the generator C, through the slits of disks B into pipe g, and thence into the gas and air mixing chamber F. Referring to Figs. 3 and 7, the vapors enter said chamber from below, go through openings p of pipe Z, and thence into the sliding valve-box G. When entering pipe Z, the vapors are mixed very intimately with the atmospheric air coming through the perforated pipef, and thus a powerful explosive mixture is produced. It will happen sometimes that the mixture meets burning particles of the gases from the preceding explosion in the sliding valve-case G, and these particles will then iniame the entering current of vapor, but an explosion will only take place up to the point where the air is fed to the vapors. A further explosion in the gas apparatus` is rendered impossible, and only materialfor one explosion in the cylinder is lost, the store of the gas-generator being preserved. The construction of the mixing-cham- F outside the gas generator is therefore a chief point in my present improvements.
The waste gases from the motor-cylinder H are conducted back to the generator through pipe b, (see Fig. 7,-) and enter the dome a, where they communicate their heat to the petroleum or similar fuel in the generator, and thus increase the evaporation of the latter. They nally pass out of the generator through pipe c.
When the pressure within the generator should become too great, the cover V of the generator will be raised by the force of the vapors, and the latter then escape into the air; but this will rarely happen, for the pressure within and outside the generator C is equalized by regulating-screw h of the cylinder A, and by pipe t', connecting the top end of the generator C with cylinder A, as can be plainly seen in Fig. 1. When the pressure without is greater than within, atmospheric air will enter through the openings h of screwcap 7L into the cylinder A, and thence through pipe s and z' into the generator C; but thc amount of air passing through pipe t' into the generator will be very small, since the air will press at the same time on the liquid in vessel A in the direction of the arrows, and the level of said liquid will fall in vessel A and rise in the generator O, and the air will even enter through the fuel into the generator. The quantity of air thus introduced, however, will not be suicient to render the vapors or gases within generator explosible. That property the gases attain after they have entered the mixing-chamber, as already told. Beside, it must be mentioned that the quantity of air entering the cylinder or mantle A may be regulated by screw-valve h, as will be understood without further explanation, and the air entering the vesselA also serves for cooling or chilling the'generator G.
The oil within the gage-glassp always stands upon the same level as that in the generator, as the latter is connected to the gage-glass by pipes s and s, the former for the circulation of the liquid, the latter for that of thegases, so that both matters-ei. e., the pressure of these matters-is equal in the ga ge-glass p and generator C.
The' mixing-chamber F, as shown in Fig. 4, is based on the same principle as that in Fig. 3. The gases enter inV this case through pipe g into the chamber F, where they meet with the atmospheric air coming through openings k, and both are mixed and drawn otf through pipe l into the sliding valve-box G.
The current of air entering the mixingchamber through openings k may be regulated in both constructions by a cap or ring, m, which can loe screwed or shoved over part of these openings m.
When the vehicle on which mygenerator is mounted should be tossed about or j olting, the fuel .within the vessel C is prevented from movement by disks B, and thus the amount of evaporating gases will be a constant one.
My improved gas-generator may be used for working gasenginesof any construction; but it is especially adapted for vehicles or small boats, as it is very safe and as its weight is decreased as much as ever will be possible.
I am aware that prior to my invention gas generators have been constructed in which-the generated gas was produced from hydrocarbons whichv evaporate at a low temperature. I do not, therefore, claim such. an apparatus, broadly; but
What I claim as new, and desire to secure by Letters Patent,.is-
- l. In earbureting apparatus, the combina-4 tion of a hood, C, suspended within the casing A, with the disks B, said ydisks being fastened to the top of dome A and being slit, and the slotted parts being bent at an angle to the horizontal plane ofthe disks, andthe miXer,'F,
substantially as and for .the purpose sety forth.
2. In rcarbureting apparatus, the, combination of an outer casing, A, with a screw-valve,-
h, for regulating the admission of airinto said casing, an inner hood, C, open at the` bottom and suspended in said casing A, said hood being provided with an outlet, g, for thefgen-v v erated vapors generated from the liquid in the hood C- and casing A, and the disksB within the hood C, substantially in the manner and forthe purpose set forth.
3. In carbureting apparatus, the combination of a feeding device consisting of apipe, o,
:connecting the reservoir D with the casing A,
and avalvespindle,u, passing through the tank D, and provided with a handle, u', and screw u2, for regulating the valve w', and With the groove o, in connection with the gage-glass p,
'communicating with the reservoir D bythe pipe o 'and with the casing A by the pipes s and s', substantially in the manner and for thel purpose set forth.
In witness whereof I hereunto set my hand
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