US817641A - Carbureter. - Google Patents

Description

No. 817,641. PATENTED APB.. 10, 1906.`

G. B. HARRIS. GARBURBTER. APPLICATION FILED Novfls. 19o4.

srarns UNITE rarna'r orrion.

COLEMAN B. HARRIS, OF- WILMINGTON DELAWARE.

'CARBURETER.

Specification of Letters Patent.

Patented April 1o, 190e.

Application and November 18,1904. serai No. 233,328.

To @ZZ whom t may concern:

Be it`known that I, COLEMAN B. HARRIS, a citizen of the United States, residing in Vilmington, Delaware, have inventedV certain Improvements in Oarbureters, of which the following is a specification.

One object ofinvention is to provide a controlling the ilow and vaporization of liquid fuel during its passage from a source of supply to the cylinder of the engine in which it is utilized.

More particularly it is'desired to provide a carbureter with a. device for directing the current 'of air flowing through it so that said current is caused to quickly take up or vaporize liquid fuel both as it is delivered from ay tube, technically known as a stand-pipe, and after suchliquid has flowed into the lower portion of the main conducting-tube.

I further desire to provide a carbureter with a convenientlymanipulated device for quickly admitting a relatively large body of liquid fuel into the vaporiZing-tube, so as to avoid the necessity of disturbing the adjustment of the main fuel-regulating valve.

These objects, together with other adva`ntageous results, I attain as hereinafter set forth, reference being had to the accompanying drawings, in whiche- Figure l is an end elevation, partly in section, of my improved carburcter, illustrating the detail construction of the priming and regulating valves; andFig. 2 is a transverse sectional elevation taken on the line 2 2, Fig. i, and further illustrating the construction of my device. l

in the above drawings it will be noted that a. Moat-chamber A and a vaporizing tube or y conduit B are 'formed as parts oi a single casting, there being an extension a -irom said chamber lying under the tube, with the inte-y ilior oi which it communicates through a conduit b, known as a stand-pipe,7 and placed in an inclined position within the vaporizingtube. The iloat-chamber is provided with a bonnet or cap uf, having a llanged inlet-pipe. u2, and held to the main casting by screw-s, as shown. A conduit c3, connected to any source'oi supply for liquid fuel, is normally held-in connection with the pipe a2 by means of a yoke-piece a", whose arms extend under the ilanged portion of said parts ft2, it being possible to tighten said yoke in position so as to make a liquid tight joint between the pipes a2 and (1.3 by means of a screw a5 of the well-known construction.

Within the casting forming the cover a/ is a normally open valve, (not shown,) from which a stem' a6 extends into the float-chamber. Proj ecting upwardly from the bottoni of said chamber is a guide-stem a7, on which operates a float as, so placed as to engage the stern a when raised to a predetermined height.

A valve bf is carried by a threaded spindle b2 in such manner as to close the upper end of the stand-pipe b when the milled head b3 of said spindlehas been properly turned, there being a' pointer or indicator' c fastened to the main casting of the carbureter, which may be made to show the amount of opening of said valve b. Projecting downwardly from the top of the vaporizing-tube B and inclined toward the exit end-of said tube is a deilector D, so placed as to cause a current of air ilo\v.

tension a of the iioat-chamber, in which is placed a normally closed priming-valve e, carried upon a spindle E, extending tlnougli the vaporizing-tube and having a head e eX- tending above the same. Said valve is pressed to its seat by a spring e2, which may be inspected or removed through the opening in the bottom of the extension c of the iloat-chamber by removing a screw-plug e. A blow-oli or try-cock F is also placed in communication with the bottom or lowest portion ol' the vaporiZing-tube B.

Under operating conditions it will be understood that the pipe. u. is connected to a source oll supply l'or liquid fuelfwhile the end of the vaporizing-tube adjacent to the priming-valve e is connected to a source of supply for air and the opposite end of said tu e is connected to the e1igine-cylinder. Since the valve attached to the stem a. is normally open, liquid fuel will How into the float-cham- IOO and pass into the extension a thereof and into theistandwjipe i) until it rises to such a level as to cause the lfloat as to engage and raise the Valve-stern c, thereby closing the Valve attached to said lstem' in the Welllrnow'n manner; Since this valve fornire no part of the 'present invention, .it is not 'illustrated in detail. .'lf a current ci air is caused to flow through the vaporizing-tulneand thev ilel naturallyhas a tendency to accumulate,

lhave found thatthe "Vaporization ot said hiel is greatly iacilitatedgfjvith the result that more' satisfactory and efficient operation ci the cnice is secure VUpon starting the engineit Will of course be understood that the '.tlow ci liquid from the stand ipe is relatively slow, and in order to quickly obtain in the ufanorizingftube a relatively lar fe quantity ci fuel ,l open the primingwalve e oy depressing theheadv e', thus perinittine' liquid to 'flow direct-ly from the iioat-'chamer into said -rap mining-tube. l/Vhen for anT reason it is desiredto ascertain. if there is a supply of fuel in the vsporizingtuhe, this may be determined 'floffflopening the tryoooli F.

I claim as my invention- 15 A carburetor including a substantially .h'orzonta'l conduit connected to a source of air-'sup ly and having means for the admissionoi" i iquid fuel, with a deiiecting-'partition inthe conduit for directing the current of air toward thebottom of said conduit and causingk it to taire up liuid fuel therein., and a priming-valve in. ad ition to said fuel-admis sion means, substantiallyT described.

2. A carburetor including a substantially horizontalY conduit connected to a source ol' air-supplv and having nieans for the admis sion of liquid fuel, a partition extending across vthe upper part of the conduit and inclined inthe direction ci' iiow of the air, for directing said. ilow toward thehottoin of the conduit and causing it to take up liquid jfuel therein, and a priming-valve in addition. to said hiehadmission ineens placed to permit entrance of fuel to the conduit, substantially as described.'

3. A carbureter including a substantially 'horizontal conduit connected to source of aii'esupply, a tube connected to a source of supply for liquid fuel and 'projecting into said conduit,I a partition extending across the upper portion of the conduit, said tube and said partition. being both inclined in the direction ofiiowol1 the air, the partition serving to direet the air toward the hott-om of the conduit v l er. r,

andcausin it to talre up liquid l'uel therein, substantially as described.

4. The combination ol a container for liq uid 'fuehwith a conduit connected to a source of lhielp-surgiply, a supnly-pipe connecting said container and saidv conduit, a Valve for controllingjthe 'dow o1c liquid to said pipe, with a normally closed primingwalve between the container and the tconouit, for open: g said ifalveat will, substantially as described.

5. `rlhe coinhination in a carbureter of a container tor liquid uel, a conduit connected to a source of air-supply having a Valve-con Vtrolled passa n je 'between it and said container, a priniin r-Va ve operative in an opening connecting tlie container and vthe conduit, spindle extendingA through the conduit and attached to sain Valve, Wherehjf the valve may he moved; and a spring normally inaintoin'- ing said 'Valve in a closed position, suhstantially as described..

6. A carhureter consisting of a single casting having a sul stantially horizontal conduit tor connection to a source of airf-supplgtand a chamber extendingl adjacent to said conduit,

'a float, and means coacting therewith for controlling,- the quantity' of liquid in said chainber, a pine proiecting into the conduit, said. pipe being in connection withthe 'rloat-cha1n ber and provided with. a Valve whereby the flow ci liquid into the conduit may he controlled, and a deliecting-partition extending across the upper portion ci the conduit lfor dirooting the air-ilow toward the bottoni there of, substantially as described.

7. A carburetor' including` a single lcasting having a conduit for connection to a source of air-supply and a chamber having Within it a float, said chamber extending adjacent tothe conduit and having an openingthereinto, a normally closed 'priming-valve for said opere ingr and means whereby' it may be operated at will, there being a silpply-pztssage Ybetween the float-chamber andthe conduit, and means for regulating the llow of liquid therefrom into the conduit, substantially as described.

8. A carbureter including` a casting; having a tubular portion and relatively large chamber having extension projecting under said tubular portion, there being two openings from said extension of the chamber into the tubular portion, a 4head ed spindle c2c tending through the tubular portion. and having a valve operative in one of said openings, means for maintaining said 'valve in a norinally closed position, and a threaded spindle projecting into the tubular port-ion and operati've to control the Elow or' liquidi'rorn the second openin, suostantiallj;v as described.

9. The combination of a structure having a chamber for a float and a conduit for connec* tion tc c source'o sir-supply, a niain'regulat.-

IOO

IIO,

IPJO

ing-valve between the Conduit and Jrghe cham- In testimony whereof llave signed. my bei, a normally Jclosed piimillgwalve also name to this speoioation in *elle presence of oontrollngan opening between the chamber two 'subsoi'ibiug Witnessee.

and the conduit, a spring fol' holding said COLEMAN B, HARRS.

' mining-valve closed and a removable plug VVtneSses:

for retaining said spring in position, substen- WILLIAM F. BEATON) tiallyae describeda WLLmM E. BRADLEY

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