US885905A - Carbureter. - Google Patents

Description

PATENTED APR. 28, 1908.

3 SEEMS-SHEET 1.

INVENTOR ATTORNEY WITNESSES:

.NO. 885,905. PATENTED APR. 28, 1908,

s. G. AVERELL.

- GARBURETBR. APPLICATION FILED APR 28,1906.

' 3 sums-sum: 2.

PATENTED APR. 28, 1908.. S. G. AVERELL. GARBURETER.

AiPLIOATION FILED APB. 28,1906.

3 SHEETS-SHEET 3.

INVENTOR ATTORNEY To all whom iii mag} concern:

r rarer entire.

I SYLVESTER G. AVERELLQOF New YORK, n. Y.

Y .oennunnrnaj No. season; specification 0 Application med spin at, 1906. Seriaino} 314,138.

Be it known that I, SYLvnsTEn G. .hvnnnu, citizen of the-United States, residmg at New York, in the county of New York and State'of New, York, have invented acertain new and useful. Im rovement in Carburetera'of which:; the ollowingis a specification.

. an inflaahle mixture.

caused to rotate w \The principle of carbon formedint ewhole unimme'rse area of a cylindrical cafiiilllary screen-which is G said hydrocarbon;'and y the construction ofthe device to impart to said air during its assage through said screen, a low velocity.

y reason of the exposure of the maximum film area of the screen to the action of the air and of the low velocity of the air current, saidair becomes charged only with hydro-" carbon va or and not with hydrocarbon liquid; an therefore the, known disadvantages incident to the use ofair moreorless charged with hydrocarbon liquid as an en'- plosive mixture in gas engines are avoided.

In the accom ipnying draWingsFi v ig. 2 is a vertical'section on is a lan view.

the ineac a; of Fig.1, and Fig. 3 is'a vertical section. on the line y 'y of Figs.- 1' and 2.

Similar numbers of reference indicate like parts.

1 is the casing, having a main chamber 2 v in which is the carbureting vessel and also an auxiliary chamber 3 which communicates bly the conduit 4 withthe chamber 2. In t e bottom of auxiliarychamber 3-is seated a ball. valve 5, which regulates the flow of liquid hydro-carbon or other volatilizable -liq'uid into said chamberi'rom the. supply piped, The stem ofvalve 5 is connected to a float 7, which rises with the liquid level in said chamber and so closes valve 5 when said li uid has reached a predetermined level in bot chambers 1 and 2. The quantity of liquid hydro-carbon in chamber 1 is thus re lated and kept uniform,

articular attention is called to the following; first, that the immersed areaof the wire gauze cylinderis small as compared with the j the area of; immersion should beno grbater than wi'll' efficiently produce the liqnidfilms in the capillary screen formedby the cylinder The inventioh relates 'to carbureters for charging air with hydro carbon to produce I the .invention is as follows to draw air through films of liquid h .dro-

artlyimmersed in unimmersed area (see Fig. 3) and,'.in .fact

i Letters Patent. Patented April as, lees.

'foraminate'd (wire gauze) cylinder. 10.

disk supportin siaft .14. The disks 8, 9 have cy indrica outer ends, as s own at 16. Across these opleinings extend the transverse bars 17 in W projections 15 and coaxial With-shaft 14 is a wall. Ontheoutsi eof the tube and extending over said slots are buckets 20.

- The casing 1 preferably diminishes in area upward to the outlet duct21. Extending across said casing is a tube 22 having a foraminated 'wall covered with wire gauze 3 smaller tube 25 preferably closed at its end 26 and extendin through the wall .of the suctionoi a gas engine at the duct films in the form of vapor, and-not in the i the ournaled at its ends in the bars 12, 13'which ex.

tend across openings in the casing wall, is the 7 projections 15 open at their oh the shaft 14 is secured. Entering the tube 18 having lon 'itudinal slots 19 in its wherein its velocity becomes greatly reduced; 1

. and open preferabl at .both ends 24 tothe atmosphere. Para lelto" tube 22exten'dsaz9 casing outside 0 which it has a valve 27.

Tube 25 is also foraminatedand covered withwire gauze. Across the. casing and above the tubes 22. and25 extends a wire gauze vpartit'ion28 and above this are bafie plates 29. a 4

The operation of the device is as follows: A regulated quantity of'li uid hydrocarbon or other volatilizable ii in: being admitted caused at the outlet duct 21 by a as e ine or by any other suitable means. drawn into the tube I'Sfthmugh the o en ngs 16 in disks s,;9=,aeid; escapes through t e slots .19 7

' iiltketsflflrandso setting said tube and tent- Lethe disks 8,9 and ire gauze cylinder 10 in rotation u on shaft 14 as an axis. The cylinder 10 in t u-s'rotating enters the liquid hydrocarbon and takes up the same in the 1st en to the chamber 2 inom c amber 3, suction is said;tube, strik'mg the conca ities of interstices of'the wire gauze, and the air bein drawn through these interstices in turn lary screen. .causes airto enter at both ends of tube 22 and pass through the openings in said tube ,andwire gauze covering thereof. This air,

not charged with hydrocarbon, mingles with the already charged air to dilute the same.

'Ihe 1final mixture passes through the wire gauze artition 28 to the escape outlet 21 and i so to tie engine or to wherever elsei t is to be tions of charged air and unchar ed air in order to compensate for externa pressuremay be necessary.

utilized.

I desire now to call particular attention'to the fact that with a given suction the amount of air which enters the. wire gauze cylinderand there becomes charged with hydrocarbon depends upon the combined areas of the openings 16 in disks.8 and 9. Also that with the same suction the amount of air which enters the tube 22 de ends upon the cross sectional area of said tu e, doubled because the tube is .open at both endsf Hence by proportioning the cross sectional area of tube 22 and the area of openings 16, I am enabled to control the relative proportions of'charged and uncharged air and thus produce a mixture of definite proportions, irrespective of variations in the pressure or quantity of air entering the apparatus. Or, in other words, this is a carbureter in which the relative proportions of charged air and uncharged air does not depend upon and is not controlled by variations in suction or air pressure; but on the contrary are maintained the same through initial proportioning of the air inlets in the manner described. ,I The object of the tube 25 having the ,valve 27, is to slightly vary the relative propordifferences such 'as barometric variations. To this end, the valve 27' which is kept normally closed is opened to Whateverextent While I prefer to rotate the cylinder 10 by the buckets '20, this construction isnot essential inasmuch as I may cause the rotation of cylinder shaft 14 by any suitable means.-. I claim:

1. In a carburetor, a casing for containing liquid hydrocarbon, a hollow rotary capillary screen receiving in its interior the air to be carbureted, artly immersed in said hydrocarbon and aving the interstitial area of its unimmersed portion mechanically un obstructed, an air inlet to the interior of said screen and an escape duct receiving carbureted air from the Whole unimmersed peri hery of said screen; the combined area of t e interstitial openings in the said unim- I mersed portion of the screen being greater 1 than that of said air inlet whereby the velocity of the air passing through said'screen is decreased.

2. Ina carbureter, a casing for containing iiquid hydrocarbon, a rotary cylindrical capillary screen partly immersed in said hydrocarbon, and having an airinlet in its;

end for admitting air directly to its interior and a duct having an enlarged-inlet and constructed directly to receive from. said screen the air flow passingthrough the whole interstitial area of the unimmersed portion thereof; the combined area of the interstitial 0 en ings in the said vunimmersed portion 6 the screen being greater than that of said air inlet whereby the velocity of the air passing throu h said screen is decreased.

' 3. In a carbureter, a casing for containing liquid hydrocarbon, a rotary shaft therein, heads on said shaft having air inlet openings, a cylindrical capillary'screen carried by said heads and partly immersed in said hydrocarbon, and a duct constructed to receive-directly from said screen the air flow passing through the whole interstitial area of. the unimmersed ortion thereof.

4. In a car ureter, a casing forcontaining liquid hydro carbon, a rotary vessel having a foraminated circumferential wall entering said liquid and an open foraminated tube seated at its extremities in opposite walls of said casing and disposed above said vessel and between said vessel and an outlet in said casing.

5. n a carbureter, a casing for containing liquid hydro-carbon, a rotary vessel having a foraminated circumferential wall entering said liquid, an open foraminated tube seated at its extremities in opposite walls of said casing, a second foraminated tube extending into said casing and closed at its inner end, and a valve in said tube controllable outside of said casing. v

6. In a carbureter of the type in which air to be carburetedis caused to traverse the device by suction from a gas engine or the like, a casing for containing liquid hydrocarbon, a rot capillary screen receiving said air in itsmterior, partly immersed in said carbon and having the interstitial area of its unimmersed portion mechanically unobstructed and means actuated by said air for rotating said screen.

7. In a carburetor of the type in which air to be carbureted is caused to traverse the device by suction from a gas engine or the like, a casing for containing liquid hydrocarbon, a rotary capillary screen receiving said, air inits interior, partly immersed in said carbon and having the interstitial area of its unimmersed portion mechanically unobstructed and means disposed in the s ace surrounded by said screen and actuate by said air for rotating said screen.

8. In a carbureter of the type in which air to be carbureted is caused to traverse the device by suction from agas e ine or the'like a casing for containing liquid ydro-carbon,

a rotary capillary screen receiving said air in its interior, partly immersed in said carbon and having the interstitial area of its unimmersed portion mechanically unobstructed be carbureted, partly immersed in said hydrocarbon and having the interstitial area of its unimmersed portion mechanically unobstructed,- an escape duct receiving'carbureted air from the Whole unimmersed periphery of said screen and means actuated by the incoming air for rotating said screen.

10 In a carburetor, a casing for containing liquid hydro-carbon, a shaft journaled in said casing, heads-supported on said shaft and having air openings, a capillary screen .on said heads having an openings in-its Wall and disposed within said screen and su ported on said heads and buckets on t e outer surface of said screen in proximity to said openings.

In testimony whereof I have afiixed my signature" in resence of two witnesses. I

\ S LVESTER G. AVERELL.

Witnesses:

WM; H. SIEGMAN, PARK BENJAMIN, Jr.

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