US1069389A - Carbureter. - Google Patents

Description

C. M. GONKLIN.

GARBURETER.

APPLIOATION FILED 001225, 1911.

Patented Aug. 5, 1913.

s SHEETS-SHEET 2. ff/,-Z.

Ct M, OONKLIN.

GARBURETER.

APPLICATION FILED 001225. 1911.

Patante 5mg. 5, 19H.

3 SHEETSMSHEET 3,

nutren s'rarns ramena union.

canoni-terna.

Specification of Letters atent.

To all whom it may camera.

lle it known that l, @Hannes M. Confirmar, citizen oi' the United States, residing at l\liddleto\vn, in the county of Butler and State of Ohio, have invented certain new and useful Improvements in Carhureters;

. and l do hereby declare the following` to he a `full, clear, and exact description of the invention, vsuch as will enable others skilled in the art to which it appertains to make and use the saine.

My invention consists in certain new and useful improvements in Carloni-eters de signed 'for use more especially in explosion engines, and involves certain mechanism and parts wherehy speed adjustments may be readily iifected and a proper amount of -fuel provided for the engine.

ln order that my invention may loe clearly understood, l have illustrated it in the acoompanyingdrawings and described it 'in the following specification, the special fea*L ltures being; more partieularly pointed out in theiclaims.

In the drawings, Figure l represents a sectional view of my invention. Fig. is a plan View of my auxiliary valve. Fig. is a similar View of the bottom of the inner shell. llig. 4 is a top View of the sleeve flange. Fig. 5 is a bottom View of a hand wheel mounted on the sleeve. Fig. 6 is a top View of -a hand vvheel mounted on the valve stem. Fig', 7 is a plan view taken on g/-g/ oli Fig. l. Fig. S represents the 'valve stein, sleeve and Adisks after adjustment for high speed. Fig. 9 is a persi'ieetivo view ot the auxiliary air valve and spline which prevents its rotation.

Similar numerals indioate identical parts throughout.

l represents the main hody ot the oarhureter, `provided with the extension 2 in which islocated the throttle 8. l`he main l'iody is open at the hottoin and provided with a hridge Il, which extends beyond the said main body and serves as a support Vtor the fuel chamber 7.. The bridge t is provided with a central opening 5, and hollow smow threaded boss vG, The main hody is preierahlv provided with double walls to lion-ated within the main hodv l is a` Voir turi tuhe 8, the sides of which approach eaoh other at their central portions ,torininfr a throat 9. lhe top vand bottom of the adapted to he screwed to the boss 6.

tuloe 8 are open., 'and a. bridge piece l0 is provided across the latter, having a central' opening l1, and screw threaded 1Doss l2 The upper edge of the tube 84 is machined to i'orm a. bearing for an auxiliary valve 13, as at 1.4. ihe auxiliary valve 13 is substantiall in the'shape of a. hollow trus-v tuni an its lower edge is made to forni a sliding hearing against the main body as at 15. A central opening is provided in the top of the valve, having a bridge 16 provided with an opening; i7 and slot 1S. rlhe lower edge ol the valve is also provided witha notch 19 adapted to engage a spline 20 secured to the main body, tti-prevent the valve. from rotating, but to allow for lon-` gitudinal movement.

El is a. rod hollowed out at a portion oli its length to Jforni a tube 22 provided with a `valve seat 23 and with openings 23 at its lower end. rl`he rodQl passes through the bosses G and l2 hy which itis centered, and is adjustably secured' in place b means of the ooinhined cap and drip` pan Q4 secured 'to the downwardly extending 'boss 25 of the bridge et. The lower end of the rod is screw threaded 'and mounted in a screw threaded aperture 26, in the cap Q4. It is obvious that hy this construction the tube 22 may-loo raised or lowered..

27 represents the stem of a needle valve adapted to ope ate in the valve seat Q3 of` the tuhe QQ. This stein is screw threaded at a portion of its length at 28, the said stein heine' slightly reducedin diameter lroin that point to its upper extremity. Surrounding;` the stem 27, at a portion of its length is a sleeve 29 threaded at its lower end to engage the screwwthreaded portion Q8 of the stem 27. and provided with au outwardly extending ilange 9.9. having slots 3() on opposite sides to receive the upper ends oli the volte or `guide 3l. The sleeve is exteriorly sorew threaded. at a portion ot its length as at 32, and is adapted to he engaged hy a similarly thread` ed portion of an adjusting plug` 2335 the pitrh of the threads on the sleeve Q5) and y illatented Aug. 551913. Application filed october 125, will. Serial Elo. 656,648.

, veniently on the upper portion of the mainbody, and is held in position by a screw 43,.

2l)` a grooves 4l, and pmvenliiigl longitudinal said wheel being `kept from rotating oii the sleeve, by means of a flat face 37, 'which at the same time permits of longitudinal movement. Between the ivlieel -flfaii'd' a shoulder 38', provided on the sleeve, is interposed `a coil 'spring 39 which presses che Wheel 36 upward into engagement with the wheel 34, thus locking the two Wheels togetlierand maintaining* the torsion on 'the yoke or (guide 3l. Y

The adjustingplug 33 is machined to a slidinef fit 4in athicliened portion of the main hody Al() and the periphery of the plug is provided i'vith a series of rgrooves all, adapted tov be engaged by alookingdog .lrlhe. locking dog 4Q is located een:

and is'for the purpose of engaging the movement of the plug, but at the same time permitting circularadjustment, `for *he pur pose ot'- ede'etinglongitudinal adjustment of the valve stem Q7. l On the. lower face of the plug,T 83 is a circular groove 44. to receive lthe upper` end of a compression spring- 45, the lower endA of which rests -against the aurgiliary valve 13, and rtends to fore/e it to itsseat.-

3l is a yoke or guide approximately l.- shaped and consists preferably of steel wire or other material lwhich will yield to torsional strain, and is adapted to engage the stem 27 oy means of an opening theretlirougl The free ends of' the yokel pass upward through slots 30 in the flange ot' the sleeve, the yoke being adapted toact as an adjustable guide or eain as will appear hereafter.

7 represents iny 'preferred form of fuel lehaniloer, from which the fuel feeds through a tubular opening in the bridge 4 to thel short tube Q2 into which it enters through l ee the openings 23'..l The chamber is provided with a float Valve by which the fuel is niain' tained :it a proper level.

46 is a `screw plug secured in a serei'v threaded boss 47'I ornied in the bottom of -tlie'eliainber. A. space is provided liet-Ween the under face of the plug,T and the bottom ot' the'opening Which receives it, to allow for wearon the needle valve, it being; ol)- vvioiis that. hy this construction the needle' p n 1 valve may, if it becomes neeeseary, he filed to properly engage its seat.. and lliipliig screwed down' into the opening' a siillieient .distance to maintain the proper relation ot 'the parts.

iilounlled on the plug 4G in suitable hearings on pivots 4S, are levers 49 pivotally oonneeted'at. .70 ivilh rods 49 whieli pass freely through the float to which they are adjusahly secured by nuls 5l. The adjustment here referred to is l'or the purpose 'in the bottoni of the eliainher in which the needle vzilvetl is adapted lo operate, said valve having av stein 5% which' passes freely through the float ineinher and the top 56. Secured to the valve stein 54 are tivo collars 57 'and .1S into the spare betweenv -ivhieli project the ends of the. levers,-^z9.

,lt isolivious that when the level of the fuel in the chamber hills, the (loat- Will fall,

'thereby raising the endsof the horizontal arms: of the levers x19@ and opening,l tlief 'valve 53, perin'itting'an inflow of fuel'to` the chamber until the float rises sutlieiently "`l.

to close vthe italie vzlhe operation of the device is as follows: Partially opening" the throttle valve 3 in the portion ofthe main body and starting the engine creat-es a 'partial Vacuum, in the body l ol the earbureter, causing airl to he drawn into the inner shell and upward through the contracted4 or neck. portion 9 and past. the valve where the fuel is sprayed,

musing a mixture of fuel and air which 1 finally passes through the openiiigs around the bridge l to the engine` Slow speed'adjiistnient-,is obtained by turning the plugthus raising or lowering the valve stem 2.7 hy means ot' the screw 32 which increases or decreases the opening at the valve'lseat, for the flow of fuel to -allord the proper mixture for slow speed of the engine.. lt is desirable, however, to* arrange for an automatic adjustment of the air and fuel supply Vvfor different speeds of the engine, a-iidf 'in orde-r to provide suoli adjust-ment, I vtwist the yolge or guide 31 into what may be termed a helical guide or cam. To effect this adjustment the corrugated Wheel 36 is depressed against the tension of the spring 3S) which disengages the said Wheel from the oorriigations of the Wheel 3, after which the wheel 36,'see11red to the sleeve 39,-is turned toeuoli an extent as will insure, when the valve 13 is raised, a sufficient opening ot' the valve 23, to afford the proper supply ol fuel for higher speed of the engine, for example, as shown in Fig. 8. ln turning the wheel 3G, it will be noted .that the yoke ill. has been twisted into the form ot' a helix, which acts as aguide or earn, as iiill he seen hereafter, the twoivheels 34.- :ind 3G being again locked together after thel :ilioie :uljiistinent has heen made.

Aasuiniiirg that.v the parte are as above desrrihed, with the valve 13 at its lowest p'osilion for slow speed, to effect a high speed adjustment the throttle is opened wide, and this causes the engine to iuerease in speed,

meeting a greater vaeiiuin in the body l -Venturi .'-tube, atthes'ame the pressure ofthe con.v

that as the valve 13,- ivhich isfheld from rotation by the-spline 20,1 rises, theV slot18.".in ,said valve, through 'which the yoke or guide 3l passes, Willitwistwsaid guide or'carn,

thereby cause the stem`27 ymeans of the sleeve 29'to rise and increase the openin of Athe -valve 23 to provide a'V greater fue supply.

l 13 is force When ducetheope'ning in the part 2,'the valve -to its seat bythe compression --spring "`and"tlie valve opening 23 will asters Patent is -L sume itsroriginal slovv speed'condition.

If preferred the yoke `or 3l may be givengitsdes'ir form after the "valve `13has been raised for high speed.

l Iihatl claim and desire to secure by Let `1.1n'ai carbureter of the class described the combination with the main casing, o

sage --around'said jet, said passage havmg an end of the open passage,

ing the entire air andgfuel supply and form'-A airflpassage and tliejli'nain easing,and a against the interior upon the discharge said valve receivcenoidal valve engaging .if the'casing and seatitig ing a mixing chamber,

2. In a carbureter ofthe class described, 'the combination with the main casing, of a surrounding'.V

said jet and forming a` constantly open air,

liquid Afuel jet, a Venturi tube l passage, an additional "air passage between .the Venturi tube and the casing, a'valve-liaving a screw threaded stein for regulating the' liquid fuel iet, a :sliding valve operable by suction for conti-:llingfthe additional air' passage and receiving p'itliin tliesaine the.

air from said passage, and connections between said sliding valve and the fuel jet valve whereby tlie opening ot' the additional air supply will also additionally open the liquid fuel jet.

3. ln a carburetor of the class described, the combination with liquid i'uel jet` a Venturi tube surrounding the saine, forming Vay constantly open air pas' sage-,lan additional air passage between the Venturi tube and the iiiaiii casing` an auto- :i'iatieally operable valve toi' controlling said additional air passage, a iiianuall y operable valve for controlling said liquid jet discharge, and connections whereby the open' ing ofithe air valve will additionally open ille valve controlling theliquid fuel supply, the said autoinatimlly opei'able'valve being of eonoidal form and receiving the causing VVthe valve 13 to and.'-

the throttle is ,turned torejet, a constantly open air pasthe inain casing, ot a and the additional air'passages 4. In arearbureter of the class desribed, thescombination 'with ahl'iquidffuel jet, of al constantly open air supplypassage around saidv jet-,"an: additional tair passage, for controllingytlie liquid fuel jet, a sliding valve held`froin\'1 :otation 'for said additional air' passagefa helix `connected with the 4liq- 'uid lvalveiandhaving a sliding 'engagement' with the additional ail' supply valve, whereby "the lolaieni'n'g; offA the additional'fliir valve will additionally --open the -fuel sup- Ply valve] j 'i 5.- In a carbureter of 'the class described, thecombination With'tli'e inain casing, ofa

to be actuated/ by suctioiibuty held 'from-rotation, aA manually'operble; valve for controlling said`fueljet guides -rigidly connectedfat one'end Wit said jet-valve stem.

a` 'freely-` sliding engagement 4with saidis said jet valve tobepositioned by the form,

ofsaad 'f1 i 6. In a ca ureter. of the class described, thefeombination wvith'the main casing, of thelqui'd fuel jet, a valve for controlling the same`, 'ofguides rigidly'connected atone `end Awith said valve stemandextendin'gfngitudinally "of the"`sam'e, a slidingairjv'alve adaptedto be operated by'suction'but held from' rotation, having a 'sliding engagement with saidguides, .and manually operablermeans for changing the relation of saidguide to the valve stein. 7. In a earbureter of the class described, the combination with the casing,'of a liquid fuel jet, a valve for controlling the liquid supply, guides having a rigid 'connection with the stem of said va'lve at one end and extending lengthwise of said stem, a sliding air valve held from rotating, movement adapted to be operated by suction, and having a free sliding engagement with the said guides, a sleeve upon said valve stein Inovable around tlie same, said sleeve being pro- ,vided with an outwardly extending flange .having openings therein engaging the free ends of said. guides and means 'for locking said sleeve in a. desired relation to said valve y stem. l

"8. In a carburetor of the class described, 'the 'combination with a lliquid fuel jet, a valvefoi' controlling the saine, a means for vai-ying the position of said valve, consist- -ing of a horizontally *or retaining said plug in different hoi-i-V `zontal planes, and connections between -the saine and the valve stem for moving said valve stem longitudinally by turning the.

the combination with a liquid fuel jdt. a

valve for controlling the saine, a means for a valvev I' discharge -from` both the constantly open air liquid'fuel jet, a slidingair valve adapted dingairvalve for causing thei revoluble plug, means 9. In ya carburetor of th(` class described,

varying the osition of seid valve, lconsisting of 'a revo uble plu means Afor retuinn said plugin different orizontel,v planes en ascrew threaded connection with the 'valve 5stem..w 10.111 a carbureter of the class described, the combination with a liquid f}1e1 -jet',' a valve' for controlling the same, 'a means for varyngthe osition of said valve, consisting 10"olor.reirolul le plug, Ineens,v for lretaining K I Witnesses-.z

fsaid. plug in diferenl',- 'horizontal lanes," a

screw threaded connection with t c valve steine-nd means for yarying the position of -the'valve seat. p

" 11n testimony whereof I .eilig my Signature, 15'

in,-:\the presence'A of two witnesses.-.

v CHARLES LLQONKLILT.

H.- in BAimf, i

.CLINTON NASH..

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