US1172258A - Carbureting mechanism for gas-engines. - Google Patents

Description

V J. c. COULOMBEL CARBURETgNG MECHANISM FOR GAS ENGlNE&

' APPLICATION HLED 00119, m0.

Patented Feb 1916.

2 SHEETSSHEET 1.

ATTORNEY J. C. COULOMBE. CARBURE'HNG MECHANISM FOR GAS ENGINES. APRLiCATlON FILEVD OCT. 19."191o.'

patented Feb. 22,1910.

2 SHEETS-SHEET 2.

' WITNESSES: INVENTOH I V Joseph C. Coulomlu'e.

I Arman 5y a e. couches, for poem-Imam), a wInnIAM H. BARKER,

ai ly to a device fol-securing proper 1' of a volatileexplosive substance.

b cts of the invention are to prohanism for securing as complete at ofv theoil orfjother substance d for formingan explosive mix llsccan'e proper"combustion of the hcr objertis to control the effectivev the vacuum created by the suction engine in such niani'icr that the fluid the engine :due tothe vacuum will ilnpregnated to the: proper degree is materials forming the explosive ther object is to control the sucfthof "the engine with reference to u'etinghdgvice in such manner that been constant anduniforni flow of 'iu 'h theincchanisnis irrespective of I tions in suction. a 1: a ing to the draivings: Figure 1 the mechanisnias applied to an y "njder; F i'g. 2 isgal central secew; of the controlling device interhc engine cylinder and carbureting In. it Fig43 is a detail CFOSS'SQClLlOllHl mixing valve such as illustrated ontrollerflinFig. 1. Fig. 4 is de elevation with parts ibroken istrating' the controller applicd "to yfioat-feedcarbureter. Fig 5 is e vieiv of onle ofthe cones of the a device. it i I :tice, many v formsjxjof g carburetmg sinshave beenyutilizedincluding the -arb1rrctcrs in whichjtliepilor volaisdrmvn oil by theysuction of the it pulls varyingr" volumes of air fluid nozzle andincluding the so- 11Xingvalvc's inuvhichthe fuel ori- Specification of Letters Patent. Application'fild October 19, 1910.

ent upon its speed tion oi the carbureting mechanism has been tlon due touneven andvarying suction of;

to fill. the cylinder the carbureting' pressure expand uniformly'and in all. ClllEC- the mechanism hereinaftzr eral which, of course, is provided with a piston EDSTATES A T I OFFICE VERMONT, ASSIGNOR or ONE-HALF TO 0F NEWYORK, 1v.

ionnnunn'rme MECHANISM senses-Enemies.

man-a1 Feb. 22, 1916. Serial No. 537,591. r

lice is closedby a valve which is subject to change of position uponvariations in the suction effect of t'he engine. It has also been a practice to utilize compensating mechanisms for carburetors for varying the quantity of air with refercnce'to the suction effect of the engine and consequently vary the. quantity of volatile fluidtaken up by said suction. In

all such devices, the suction of the engine isnecessarily variable dependand therefore the operachanges of suction..

It is the prunary obyect of the Invent on to overcome the ob ections of improper operamore or less uncertain due to extreme theenginc by providinga means intermediate the fuel supply and air inlet and the engine cylinder for obviating variable and undue suction of the engine by controlling saidsuction. It is believed this has not been practically done heretofore, in as much as variations in suction due to the variations in speed of the engine and the consequent passage of varying volumes of fluid through the'carbmretingmechanism in a given period of time has necessarily subjected the carbureting mechanism to abnormal conditions. resulting in improper mixture of the air and liquid fuel. In the device herein described,

the suction itself is controlled \vitha result that uniform conditions may be maintained in the carbureting device.

It is of course apparent that an engine cylinderhaving a given boreand stroke requires a given volume of explosivemixture .90

and it is the object of the present, invention to provide the proper volume of mixture for thecylinder without creatinggreat variation in suction through mechanism. Gases under tions. when released, and it is assumed in described that theincoining gases, bein released by the formationot a partial vacuum, likewise expand as hereinafter defined, as soon as they i enter the chamber in which the partial vacuum has been induced.

In the-accompanying drawings, the num- 1, denotes a cylinder of a gas engine inlet and exhaust valves, and mechanism (ordinarily employed for controlling the operation of said parts including an ignition device. v

The several parts of the engine are not 'herein specificall 1 shown and described as such devicesare .well known in the art and the mechanism hereinafter defined'may beapphed to the various types of gas or liquid hydro-carbon engines. a

As illustrated in thed'rawings,"in Fig; .1,

the cylinder is provided with an inlet 2, and an exhaust 3. a The inlet 2, as shown in Figs..-

. 1 and 3, is connected with a carbur'eting de-' vice ofthe mixing valve type "illustrated at 4, and inthe connection, between the mixing valve and the 'inlet valve of the cylinder is arranged the controller '5. The mixing valve, as shown herein, comprises a casing 6, having an air inlet 7, and an outlet 8. 7 An oil nozzle of a fuel nozzle 9, exte'ndswithin the chamber 10, of the mixing valve and is controlled by a needle-valve 11, connected with a bafile-plate 12, which divides the 25 chamber 10, from the chamber 11. The outlet 8, is in connection with the chamber 10, through an adjustable passage 13, and through the valve opening 15, controlled by the baflie-plate' 12, when the'latter is raised. 30

The passage-way 13, is controlled as to its 'areaby a plate14, actuated by a thumb-nut needle-valve 11, permitting the liquid fuel to pass through the nozzle 9-, from the sup ply connection 20. In order to compensate for the variations in speed, the passage way 13, is provided, and thus a certain portion -.of air entering the chamber 10, through the inlet 7, will pass by the nozzle 9, and

through the passage 13, becoming mixed with' the fluid which. has passedup through the opening 15, and carried-with it a certain amount of the liquid fuel. Such a mixing valve as above described is not new in the art.

1 In- Fig; 4, thecontroller is illustrated in connection with a float-feed carbureter' of theordinarytypeinwhich there is a casing 25, provided with a float-feed chamber 26, and a carbureting chamber 27. The airin let to the cal-bursting chamber 27 is illustrated at, 28, adjacent to the fuel nozzle 29,

which is in direct connection withthe floatfeed" chamber 26, through a passage 30. A float-feed 3 1, controls the inlet valve 32, which connects the float-feed chamber 26,

with the: supply-pipe 33. i The m'echanism'is I so adjusted that a constant l'evel is maintained in the-oil nozzle 29, and a, valve 34, controls the-nozzle 29. Suitably mounted upon the casing is the lever 35, which con trols a suitable throttling valve 36, for throttling the mixture which is sucked in of 'the carbureter and ofcoursehas proper connectionwith the engine-cylinder; In

by the engine. .The controller 5, is illus trated as extending frompgthe outlet-side37,

either of these devices, the; mixing: valve shown in'Figs. 1 and fljor the fioat fed car- \bureter cesarean-Fig.4, a i the object td-pick up the-proper-amount of liquid fuel 'with the airwhfich i's ,ln'oifght-v in .through the carbureter. In .alllsuch' devices, the variations'. insuctionydue to the variations in .speed of :they; engine: cause. an" improper action of the carburetin g 'mechariism, and

the mixture secured with a certain. adjust-- ment of the devices, may be too .rich or too-poor tbigive'thebest results. To-overcome these bbjECtlOnSfZt controllerv is interposed between the carbureter or mixing valve and the intake valve of the engine as illustrated in the drawing. This controller consists of a casing shown herein as of tubular form and provided interiorly with a series of'-cone-like members 38 nested to-,

gether within the casing 39. The cone-like members 38, when nested together, form independent chambers 40, each of said chambers having their side-walls extending at an angle. from the central axis of the device. v

The cones may be so formed that their open ends gradually decrease in diameter from, one end of the structure to the'other, in such manner that the incoming fluid, gas

or vapor, is firstiexpanded into an open chamber 41, and is then drawn forward through the central opening concentrically ariangedwvith reference to all of the chambers and expands intoeach of the succeedl/Vhere each successive chamber has a slightly reduced inlet as compared with the preceding chamber, the column of mixture ing chambers 40, formed by the cones 38.

passing is gradually diverted into the several chambers. The gases are caused to impingeagainst one wall of each of the chambers and after circulating therein and ex.-'

panding, finally find their way into the next succeeding chamber. Thus the initial force due to variations in suction'is taken upin theseveral chambers and does'not react to cause serious disturbance of the .car-

bureting mechanism. -It will be noted that the area and cubic contents of the device is comparatively large,1 while the direct central opening therethrouglris comparatively small. 'At the same time, there is a clear opening through the controllingdevice and the engine is therefore free .to draw the ecessary Quantity of vapor through the con "rollerat alltimes. 1

Itis apparentfthat the greater the vacuum eater the speed of the column of gas will ietheavier particles xvill be thrown into the ambers, in as much as the gas imder the ressurc will expandxin all directions. The ect isfor each ofthe succeeding cones 't' o ajke 01f a portion of gas fromthe passing lurnnivhich portion; of course, Will connrthe less attenuated mixture. For" in;

ach of itschamb'er's by the gradual exlaust on of the fluid. IAt the same time,

1s a suction effect upon the carbureting hanisin. As the engine varies its speed udde'nlyincreases its speed, the vacuum re pronounced; Thereupon, there is a atertendency forevapor or. gas to expand nto the vacuum chambers; The heavier are naturally thrown tothe outside and away fromthe central line of movement of gases and if these particlesare suitiently heavy, they Willultimately be forced buckltlrtl? and out inttrthe open channel through the centralline of the devicetilg ing herepickedaipjbythe more rarified gas and successively thrown'into the several chamincrease: in the suction due to sudden increase 'in speedofthe piston will not be efiectiive to cause flooding. of the carburet'er andl the drawing upof a greater quality of explosive mixture; If the carbureting mechanism isonce properly ad usted it eedsrno further attention as the effect of form passage} of ,vapor of the proper attenuation, even; upon varying speeds of the engine." By creatipgxa partial vacuum throughout the chambers of the controller, itlafolloivs thatythere 1s a constant and even draft tlirough the carbureter, andveven if t niivtu'rebecomes too-rich upon entrance t the controller, the expansion of t-he gases will throw off the heavier particles until celumn of vapor, Italia s beenfound from actual experiments that P the mixture thus secured 11s a very perfect nnxture, in as much as the combustionis complete and the sed by-thesuc'tion of the engine, the

and the more rapidly and more certainly nee, when" running at low speeds,

al vacuum ismformed 111" the controller y lV hat I claim as my invention and desire ases ibearing the richest amount of liquid ens. Withthis device, a sudden impulse or 3 tel than isyrequired to secure the properthe controller isto give a gradual and un i-' they are gradually picked up by the moving" i varying vo controlling mg up the lumes with more or less forceful uupulse, 1s constantly pasing through .the

device and throwing oil or talc particles of oil until the proper degree of saturation is attained.

Obviousl be varied t y the details of the device might o a consulei'able extent and While it is sho vnherein of cylindrical form, this form might be varied Without departing from the-spirit or intent of the invention.

Furthermo the taperin re, the number of chambers and g otthe cones forming the several chambers, together iv'ith the size of opening therethrough may be varied to suit the enigenome of to secure b 1., In a and a flui any particular case.

y Letters Patent is and to be vaporized by the passage of vapor through the inlet and an outlet for the vaporized fiuidconnectedwith ashction device, means for maintaining asubstantially constant In ixture of fluid and vapor through said device upon varying conditions of suction, said means including a series ofchambers intermediate the outlet side of the vaporizer and the suction device,'each chamher having its wall s imperjforateand tapered toward a common central axis and each chamber having its inlet projecting Within the preceding chamber.

2. In a vaporizer embodying an 2111 inlet,

a fluid supply to be mixed therewith and an outlet, a cylindrical casing extending from the outlet and having arranged therein a 5813168 015 chambers, each chamber having imperforat e walls and each chamber opening to a common central orifice connecting all of said chambers, the inlet of each chamber arranged within the .next preceding individual tion where trolled.

3. In co an engine chamberof the series, the chambers forming expansion chambers arranged in series to receive the fluid passing through the vaporizer. and succesively subgect to sue by the speed of the fluid is con-,

inbinati on with a vaporizer for or the l1ke,,means ntermediate said vaporizer and engine forcontrolling the speed of movement of thefiuul through said vaporizer, series of annular chambersformed with 1msaid means *enibodying a perforate tapered members nested one vithin the other and with their wallssubstangtially parallel, all of-said chambers being :tlosed except for a centralopening common to all of said chambers, the central opening to each'cluimber located \vithin the walls of the next preceding chamber of the series.

annular 4. In combination with a vaporizer for an engine or t said vapor he like, actuated by the suction of easing intermediate izer and engme,.sa1d casing con- 3 tainip at series oficonical imperfor'ate wallsmfi'gd' parallel to each other and extendg a'rd the cgntr'al axis of thecasing, 1 stud walls halving a'common central opening I itherthroligh -aranged (no-axially with the a'x-isnfthe Casing andwith the central aperttImY-Ofeach ofthe succeedjng wal-ls gradw 'ally d f a asing ih diamete r from the inl et toward the outlet of the casing.

'J0sEPH o.-00 L0M13E. Witness es:

. KATE- BRENNER, lW B. H LL.

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