USRE14669E - summers - Google Patents

Description

c E. .5mm M E R8.

CARBURETEH.

APPLICATION FILED MAR. 2, 1917.

Reissucd June 17, 1919.

'U E. SUMMERS.

CARBURETER.

APPLICATION FILED MAR. 2. 1917.

ReissnedJnne1Z19l9. 14,669.

5 SHEETS-SHEET 2.

C. E. SUMMERS,

CARBURETER.

APPLICATION FILED MAR. 2. I911.

ReissuedJ une 1T, 19%). 14,669

5 SHEETSSHEET 3.

lu, ,ai ll mm, 1%

c. E. SUMMERS.

CARBURETER.

APPHCATION FILED MAR- 2.191% Reissued June 17, 1919 I 14,669.

. 5SHEETS-SHEET C. E. SUMMERS.

CARBURETER. APPUCATlUN men MAR. 2, \91'1.

Reissucd June 17, 1919.

' hcreby the 'vbl nrne'of fuel i110 requirements of tile nmtor UNQETEH} GALEB E, SUMMEES,

Tr) full MIL-(m1 it "may KfOTNF E'P'H" Bu it known than; I, CABEL F. SUMMERS, a citizen of the United States, i'asifililigzily Kmmas City, in the enmity 0f Jaicksnn and. State 0'1 Missouri, T we invented certain 1H3? and HSQflil Inn jovinents in iw nreiers, m. which i'hi": 'lcvillon'in is spec. "is timii.

lnucl'qif cninprib A a whereby fuel. may be delivered tier of a motor-in mews-mail qnnniiti regulated to meietthe reognii in}; temperatures and but the present. invention conntiti I pl'oveinein. on that ,(lisclosecl in my cn pencl' ing application, Serial No 788 6253, September 8, 1913. v

It is also an objnctof the invunii on to p 20 \itli n czu'bni'eter which is adapted for L Without alt'erncii'in, with Fuels of ilifi'en specifi gravity and wherein nn fuel such as gasolunc, may be nsmi nnlzii llie nnil'cn livereci to the carburetor iln'ougli the sinnen'iensnring element and inizaey witlmuiiinterrupting the operation f the .ll'lOl'Ol'.

In accomplishing these ()lJ'lQCtS I have PM viiled 2L caiburetei' c'oinpi-isiz inezisnring device which operable, irnm film (mini;

shaft of the motor with which the curbnretar 15 used and 1s nmlmcnntiul of a tempeml'lll'O and pre sure regulator, lllilt the :i'nel foul is nlwn q inoyimlinnml in the and of flip motor and illl'l'OnlzlilQzlllj, variable tn 1mm;

unler tliiifervnt conditions of {-enipm-atm-v or pressure in the intake nmnilohl of the 1110101, or the snr-- Linn ml llH i-xlmlm manifold living in new Fig is a similar View with the "l, (in: iHilOI. head renmvccl if? apesi 10 iirm n5 lfli in? A 'lonnl view of the fuel. clinzn- 19 me. lim --.IIl, Fig 5. 3;

a? l-ioinn View of the same; or i in rlili Fig 8: i

1S :1. F498 onnl view of the ne XII-XL Iii-g. i

13 is n Sectional View of ihe valve 01's of the motor ("i inflow, on the line G ml and vapmj'izing rim fuel;

sectional .view (if 1 all \alii:

; i1 tnlen on Ilia line XIV QKlV,

15 in a (lL-fn'l c lm'n'l'in'n in aliv d iving nnnnlwz's of the final 1 'lll' l containing driving lllGCllzllllHH. 'foiilllk'lfiitq A ing the measuring elementaavhich"latter are;

contained within a Cl1amb([?"l2 Yin; the head 13 that is secured to the casing 10; prefer.- ably by screws 14:- -Revoluhly mounted in a bearing 15 in the head 13, and in a stufiing box 16, in the casing 10, is a shaft 17, having key and slot connection -18 -19 with a disk 7 20 which is held yieldingly against the inner face of the chamber 12 by a s 'iring 21,. and which is provided with a plurality of diagvonellv disposed pockets 22 in itsouter face. The body of the spring 21 is located inma groove 21 in the outer face of the casing- 10, and aspring 16, located in a similar and adjacent groove engages the stuifinghox to g eldingly hold the latter in place.

I 1' k 1sjadepted fox-travel pasta cupped 23 of the chamber 12, so that liquid uel contaf ed therein inay enter thepockets 22', and for travel. past and in close contact with the raised portion Qshsofthat fuel may I outlet port 25, located at about the raised portion. 1 1 a 25 Integral with th head 13 is aboss 26,-havc a tube 27 threaded thereinto and communlcating at heater '6. 30 u swardly 29,arap-liming"through the head lag'adjacent v the outlet port 25, so that suction from the intakemaniii'old, with which.

' inorder. thatthe fluid may be drawnh the suction into the heater tuhe andibdeon ducted therethrough to the mixer and 1 n1ani fold; In orderwto relieve the disk Gllttl'l'lr.

ber of air taken thereiiito in this manner, I provide a vent tuhe 31 which connnuni cates with Et-KGGQSS 32 in the upper portion $1 of theehamher, and which extends up fwardly to a point above the level of the supply tanltsfl r; (Fig, 1%v

Thepi esent deviee is t q for receiving two kinds fifl itaiined within supply tanks be located at a any convenient point, and valve 38 onthe' head 12 by 6. Thevailve prefer h rticularlyt tdapted of liquid fuel con- 34 which may having all I I a rodAQ which en ichwis, adapted for sin'iultaneous colnn'iui- 1' [mention with'aport 4C5 leading to the measuring chamber, and witlneither one or the 3: conduits 4=6 01147 that communicatewith The I nut-s51 and a spring be trappedin the-pockets and carriedto an,

the ccnterof i tions.

its inner end with the outlet port 25, and at its outer end with the i The boss 26 also comprises an, opening 011928., having a port" I the tube 52/2 d alufrorn the. oyen the feedingdisk Wheel (31 rigidly mounted on the shaft 1? ovided with a nine y degree slot A,

35.36 respective y,

I the measuring chamber. p v

v If the engine has beenope'rating on the fuel from one of the supply tanks audit is desired to .change' and use other tank,'whieh may be of a different kind or grade, it is necessary to drain the meas uring chamber before the new fuel is introduced. In accomplishing this function; I have provided-the valve plug 40 with a longitudinal slot lS (Fig. 8), which is adapted for communication with an aperture 49 in the head 13 and with anotch 50 in the-base oft'he valve seat. 39; when the slottedi is out of communication with. hothof the feedingconduits so that when the conduits s6 and 47 ill-is open, to drain the measuring chamber, The valve plug so is also provided with lock washer 52 for holding it snugly to its seat while .alloiving free revoluble *inovement to its various posi- Near the upper portion otthe liead 13 is a priming device comprising aneedle valve '54 which is held to its seat by means of a coil spring -55,' and. passe The needle valve is prov "vided with a fingerIgrip-ST and is adapted s through a retaining nut 56.

, v fuel from-the i I are closed, thelport to normally/close aport 58 in the measuring-chaniher 12 so that the lhuliul,v incl will not ne theretlnzough,andthrough an aperture ol'j-which communicates with the cup th valvefis is openerh n which a iii fhil vith the "ilqllhl t conduit to'deliver a greater-quanutity of tuel to theengine cylinderdand hence a a richer mixture at the start. i The actuating, mechanism for revolving 20' comprises '3 a ratchet and within. the chuurnher 11. Revoluhly mounted on the hub 62 of the ratchet wheel -61 and in an aperture 63. in the cover 6st of having diametrically ex tending arms 67. Pivotally the extremity of each ofthe arms 67 is a pawl 68', which is gagenient with the ratchet wheel 61 by a curved spring 69, the opposite ends or vrhich are mounted on' respcctive. pawls.

.Tl'le 1 ing and his e slotted-shank 66 is pro ected; the end of the shank lnwig a transverse slot .66 in its end adapted for receiving 341311174, that extends acrosslthe socket, so thatjthe shank uel n ugh the-"FortEZQEand jinLothe l a the chamber llyis a hub 65, having a slot tedshank 66 and I mounted near heldggicldinglvin 'en-i.

path of a pair of cams 81 and 82 whoseouter contour is similar, in that they are 'each provided with three equally'spaced of barometric or absolute eam surfaces 83 for simultaneously engagingthe lugs 80 to hold the pawls out of engagement with the ratchet wheel 61, the

cam 81 being rigidly mounted on the in-' nor face of the chamber 11 byscre'ws 81 and spacing collars 85, and the cam 82 revolubly mounted on the,boss 86 of the easing 10. The cam 82 provided with two arcuatileslots 87 into which the spacing collars the travel of the cam, and the latter is operatively connected with the rod 88 of a pressure'regulator 89 by a link 90, which, with the link, islocated in a cut-out portion 91 of the head 13. The pressure regulater 89 is secured to the cap 92 of, and is contained Within, .the chamber 93 in the casing 10, and comprises a plurality of intercommunicatingdiaphragms 94 which are sealed en masse andare adapted to oper-,

ate in unison to reciprocate the rod 88 and oscillate the cam 82'whenever the change pressure, or tem perature-in the chamber 93, causes the air within the diaphragms to expand or 'contract. 1

Leading from the chamber 93 is a conduit 96, havinga tube 97 which communicates drive,

Q with the cams 81 and 82. It is 'With the intake manifold 4, so that ,variation in pressure due to throttling the engine is communicated directly to the chamber 93 and causes the diaphragm to expand 0r con tract and-thereby oscillate theca'm 8 The effect of this oscillating movement isto rock the link and turn the frecam 82 on the stationary cam 81, and thereby increase or diminish the amount of effective cam surface over which the lugs '80 of the pavvls 68-travel, and consequently the length of time the ratchet pawls are in contact with theratchet wheel 61. r

It is apparent that by using'the worm gear the pawl carrying arms 67 are driven constantly When the camshaft is active, and that, thespawls impart an intermittent revoluble movement to the ratchet Wheel and measuring disk, by virtue of their contact also appar cut that the regulator 89 determines the.

magnitude of such intermittent motion and that when. the engine throttle is closed and theabsolute pressure in the intake manifold 85 are projected to guide and limit speed more nearly approaching its normal 4 ratio with the single consumption,

As any increase in temperature or decrease in barometric pressure in the surrounding atmosphere causes the diaphragm to expand and cutdown the revolution of the measur ing disk, the minimum amount of fuel for operating the motor is delivered from the feeding chamber, and Waste of fuel is thereby obviated.

After the liquid fuel has passed into the delivery conduit, it passes through the heater 6 and througha tube 99 into a mixing valve 8, which is integral with the intake manifold 4 andcomprises a vertical chamber 101, having a cap 10:2 threaded into its upper end and provided with a plurality of apeitures 103. Sli'dably mounted'in the cap 102 is a v puppet valve 104, which is heldyieldingly to a seat 10%, on the lower portion of the cap by a conical shaped spring 106, which the center of the valve and ueath the valve 10% and passes downwardly through a throttle valve 105 which is pivotally mounted in the sides of and is provided with an ordinary level 105 that is operable from any convenient point of control. 1

As the fuel vapor enters the chamber 101 it is mixed with its complement of air and passes through the downwardly inclined portions of theintake manifold and through the inlet valves 108 of the motor. more thoroughly mix the gases and prevent fuel from entering the cylindersbeforc it has been vaporized, I provide each cylinder valve with a cone-shaped hood 109, which is fixed within the valve chamber'olt the'cylinder immediately adjacent the v'alveslOS, and has apertures 110 therein through which gas must pass to enter the cylinder. 1 p

As it is sometimes desirable to inspect the driving mechanismduring its operation. I v have provided the (El-5111;! 10 with a sight tube 111, through \v'hirh'the parts within the casing may be observed. and which may be closed under normal conditions by a cap 112.

In using the device. presumimg the parts to be assembled as described, and the tanks 34 filled m1 gasolenc and kerosenerespic tivclv. the handle 43 is actuated to turn the In order to 100 v the chamber valve plue 4-0 to position for admitting: gasolene to the measuring chamber. and the engine cranked in the ordinary manner. W hen i 78 imparts revoluble movement to thew orm gear 76 and armsfi'? on which the pawls 68 .nectedwith the ratchet wwheehf is yam-lea therewith, andth-e tiocketsfll re filled gasolene as th'ey pa'ss they cupped pjort o. 23 the gasolen'e is trapped mixtureywhich" isdelivered into the engine i A CS/111K118 .i through the screen 7109 and valves:

of the head 13,; and

the motor has started and isrunn'ing' on its own power, the worm 77 onthe cam shaft are mounted; so as to carry the latter over the peripheral face of the ratchet wheel 61 andv over the cams 81'and182', so that the p'awls will alternately engage the ratchet wheel and turn it through an arc, the length": of which is determined by the position of} the cams, thc efl'ectivaposition -of the'cams' being dependent on the temperature and pressure Within the; regulator 89, which varies With theqtemperature and pressure of ,the f surrounding atmosphere and with the absolute pressurein' he "intake manifoldand', n the" initial 5 conch The nieasurin'gwdisk ilbeing operatiyely} conin said pocketsasf he disk moves' ov'er the l he operationofthc motor causesa partial vacuum to port 25 through t e tuhe2'7; so thatithe fluid is removed trontthe pockets and displaced I with air which "enters through the 13011129,

Suctionfroin the int he manifolddraws the liquid fuel throughYthe tube 27 imc the heater 6,.where it is; vaporized by exhausting gases and dellvcre form of vapor, This'vap'or is then delivered intothe chamber 101" and mixed with 1 air, from the valve 1%, to form proper fuel 108. Under such conditions and with the throttle open, the absolute pressure in the intake manifold increases and the I dia phragrn will contract thereby moving the cam 82 more'nearly intoalinelnent with the x cam 81,andpermitting the pawlsa longen contact with the ratchet wheel, and conse'-,

quently a greater number of revolutions of i the measuring disk; giving an increased supi the motor ply of dle 43 is manipulated to close the gasolcne port leading from; the-kerosene supply tank,

in which pos tlonthe parts operate as'just described, but withkerosenc instead of. gasolone as'tho fuelfiuid.

" "Whcntlie .motor is to startedygafter [liquid before the tui'i'iil'ig gthc"valve 4-0 unt l the having 1 run: on" kerosene, the measuring chamber 'may be drained of. the heavier gasolcne is tur ned in, hy,

groove 48 'witli'the;aperture 49, in which po;

1 t mvtfls:h thecamsJ-so thatathe' ratchet pawlf'sfiniparta very light movement to =t1ie ratchet] wheel;

is carried upwardly to be formed in the intake manifold, which "is communicated to the- 'ftravel past the delivery 'Wheel connected with said disk, shaft into a tube 99' in the gasolene to the cylinders. Assoon'as v has become well heated, the hanthrough the nctch 50 until the chaniheris cmpty, 1t being apparentthat as the groove I lies in the third quarterof the valves cir cumference both supply conduits will be closed during the draining operation.

It 15 sometimes necessary, during-told 'weathento, furnish a richer mixture to the -cyhnders for starting the engine, andin accomplishing this function 1 have provided i "tlieprin ing valve 54:, which may be actuated -'to permit liquid fuel toiiowofrorn the measuring chamber into the opening E58 frhm which it isdrawnby suction into the motor; Having thus described my invention, what I} claim as n w therein, and desire to secure by LettersPatent is:

ali The' combination with a motor compr sing a cyl nder and a camshaft, of mealsuring mechanism comprising adisk having tuel pockets therelma ratchet wheel o peratively connected Wltil the dish, a pawl carrlying member revolubly mounted adgaccnt the ratchet, a shaft operatively coniiected 'Wlbhsaid pawl carrying member, andgears on said shaft and Jon the cam shaft tor iniparting continuous rotary movemcnfito said .pau l carrying member; 2. In an apparatus of the character described, a

fuel measuring mechanism comprising a fuel chamber having a delivery port, a disk revoluhly mounted in the cha1nher and having pockets therein adapted for port, a ratchet mounted concentrically with said disk and ratchet wheel, arms extending laterally from said shafhparwl s ilvotallymounted on said arms and yieldingly tensioned toward operative engagement with the ratchet Wheel, and gearingifor continuously rotat ing said shaft.

3'. In an apparatus" or the character de scribed, a fuel measuring lnechanism comprising a fuel chamber having an outlet port and having acuppcd portion provided with an intake port, a disk. revolubly mounted lie inv said chamber and having pockets adapted for travel through the cupped portion of the chamber and "overthe cut-let port, a ratchet wheel goperatively connected with said dish pawl arms andmeans for actuating same,

paw ls mounted on said arms and adapted for operative engagement with .the ratchet wl'ieel, and a cam for pawlsfroni said ratchet wheel. Q

t 4;. In an apparatus of the character de disconnecting the scribed, a fuel measuring mechanism co nint- Eli an intake port 'adiskrevolubly 1 1. said ch mbcr and mmmpdekas v cupped por- Q" re outletport 1;, pa lann's'aad niejaiis i'oractuat' r30 prising' a fuel chamher having an outlet" port and having a cupped portion provided 25 j said dm' *6 slmf'iz, awls on to engage said ratchet li el'uily directed bosses on mid dapted am member 21'- ting ntznos- 80 n 1111301 nittent aua 99 3]?- My 95 for :1 fuel 75 saidop tn 21 fuel 8 pi mg 6 contaciz e1. 12

:unbm' zitchetwho fi'ectiv :lmr

. ten

char lmvin I My monn *ongh mczasm fuel it! mfijt mm r s zx t a SP1 sm in mbejr: d mmsuring (1& it

1 mbe 911 g UL.

I". the character deting; ch

lfim ch V for in 1km- W Lppam 11 open lmbm 213% than umber nu; nw

ch was e sperm:-

ii I? :1 said Emmi l' 5." 1 and mm i' GP r nn'i's 1 Ziqmd vuhe I inlet ing' monshiuwwin mbm,

sai 1 Tim ink vhum we} inlet be? h n Hm Fuel.

hmnher. th

a cze lngg Chan uringf elements in said fuel chamber, in said ,llti'ttl adapted for ('ronnectii'ig one of said fuel inlet ports with the inlet port of said fuel chamber, and for scribed, r a'miprisii'ig a casing, a head on saiiv l nag and opei'iing'thc drain port.

41 in apparatus of the character dcfcasing having a plurality of fuel inlet. ports, a liquid fuel measi'lrmg (tl'iamber having an iil'ct port and a drain port, liquid n easuu ing elements in said fuel chamber, and a:

valve in said head adapted to close all of said fuel lnl'et. ports and open said dram port to drain the chamber,

An a maratus of the character de-.

I scribed, comprising a casing, a head on said casin having a liquid fuel nieasuringchainher, a cup and a fuel delivery conduit; fuel measuring elements in said fuel chamber the cup f with said heaterand fuel chamber and said ,deliverypm' erebv fuelis "awn from the pochc s Bed by an through adapted todeliver fuel "to said delivery condu1t. and apruning valve c-o 'inecting said fuel chamberjwithsaid cup.

' 16; An apparatus of the charactel. described, comprising a casing, a head on said casing having, liquid fuel measuring chamber 'a fuel delivery port and an extcr-, n'alcup having a port communicating with said fuel ,cha iberadj'acent said delivery port, aflfuel measuring disk in said'fuel chai'nberfhm'ug aplurality of pockets for de iverin'g'l'iquid fuel to s id delivery port, means' forpro ucing s1 t ion' through said place the fuel lraw'n rt 11 aid pockets into the delivery port, for the purpose set forth.

1?. The combination with a motor having suitable eXhau, and intakemanifolds, of a carlmretcr comprising a casingliavinga fuel chan'iber, an operating chamber and a regulator chamber, liquid mez'isuring elements in said fuel chamber, a driving mechanism in said-operating chamber, a regulator in said regulator chamber for determining the effective engagement of said operating mechanism and measuring device, a heater in said exhaustmanifold, a conduit con'nnunicating adapted for receiving liquid fuel from meas ring elements, a mixing valve in intake manifold, an air inlet valvein said n'iixing valve, a conduit cmmecting said heater'with said mixing valve, and a throttle for controlling the flow of fuel and air through said intake manifold.

sai d carburetercomprising a casingQlmving a fuel measuring chamber, an operating cham her and a regulator chamber,liquid n'ieasuring elements in, said fuel. chamber, an actuat- 'chai'nber, a mixing valve in said intake 18. The combination with a motor having suitable exhaust and intake manifolds, of a ing mechanism in said operating chamber,

a heater in said exhaust manifold, a conduit communicating'with said heater and With saidfuel. chamber, a regulator in said regulator chamber for determining the effective connection. between said actuating mech anism and said measuring elements, acquduit connecting said regulator chamber with said intake manifold, a mixing valve ,in said intake manifold, a conduit connecting said heater with said mixing valve, an air inlet Walvc in' said mixing valve, and a throttle in said intake manifold for controlling the flow of gasthrough said manifold and varying the absolute pressure-in said manifold and regulatorchamber to vary the a-i nount of liquid fuel delivered by said measuring elements i 19. The combin ing a cam shaft and'suitable exhaust and intake manifolds, of a carbureter comprising a casing having a fuel. measuring chal'nber', an. operatingchamber and a regulator cham ber, liquid measuringelements in said fuel.

ation with a motor havmanifold, a discharge conduit connecting said mixing-valve and'said fuel chamber, an actuating mechanism in said operating .chamber, a (hive shaft for said actuating n'icchanism, a worm gear on saiddr ive shaft, and a worm, on said cam shaft for turning said worn) gear and driving said actuating mechanism and a regulatorjin said regulator 'chambcr for governing the effective conctiveen rid actuatiifigme v a ii'ig hav i'g a t el measuring chamber, an operating chan'iber, and a regulator chan1- bcr, liquid measuring eleme s in said fuelv chamber, a mixing valve in said intake manifold, a conduit for conducting fuelf from said fuel ch amber to'said mixiiig valve, a throttlein said intake manifold between the motor and mixing valve, an actuating mechanism in said operating chamber, for actuating said measuring elements, driving i'nechanisn'i operatively"connected With said cam shaft for driving said actuating mech anism in direct proportion to the speed of the motor, a conduit connecting said regw.

lator chamber with said intake manifold,

whereby the variations in absolute pressure of the mtakemamfold are communicated to the regulator chamber, aregnlator' in said chamber adapted for actuationbyvarying pressure in the manifold, and means comiecting'the regulator with the measuring mechanism. a

21. The combination with a motor having a-cam shaft, a plurality of cylinders, each having a valve chamber, inlet valves, and

exhaust and intake manifolds, of LLQarv bureter havin a liqu vice operable lata hleby aibsi'ii ate take manifold, a manifold, and it her surrounding nonwaporized :l" A. is traction until atomized by ume of gas.

22. An appamtus cf j. scribed, cemprising an inwardly fuel delivery and air it revolubly 'mcu'nted in sa operatively ceiuiectcd having a plurality of i lGi. pockets adapted for travel past the fuel :leilw "y and air inlet ports, and means for pr )Li. cing suction in said. delivery. parts, fill relay the fuel in said fuel pockets is ill \Jl air from said air inlet ports.

23. An apparatus scribed, cum; an air rent and having rected boss previded WC A air inlet ports disk said fuel chiher fuel pockets adapts delivery and air inlet pin due-in}; suctien in said .iml displacing the fuel in said i: air from said air inlet ports, revolving saidclisl; to a? acquired t-hreugh said a.

24;. An apparatus ofthc character described wmprising a member: having a liquid fuclnieasuring chmziher and a fuel delivery millet, fuel mcaaurir .nents id chamber adapted livery eutlet and a )lying additieual iii lolsaid delivery out chamintalce valve. whereby held by c lary atthe passing volcharacter der baring (l with shaft Y. disk a plurality of Q2; the fuel is fer prahe air thus scribed cry pens for.

25. An apparatus of the character defuels of different kinds, a fuel chamber into which fuel from either one of said sources may be fed, said chamber being provided with an outlet orifice, and a additional amount of fuel, said priming device being adapted for use in connectionwith said fuel chamber, whereby priming may be done with fuel of either kind.

26. An apparatus of the character de- .-"icrih-.e comprising plurality of sources of fue supply for sup 'rlying liquid. fuels of chamber with either fuel, and heating means for heating the primed fuel.

28, An apparatus of the character 'described comprising a plurality of sources eff fuel supply for supplying liquid fuels of diil'erent kinds, :1 fuel chamber into which liquid fuel fi'ein either sourccmay be fed, a priming device for priming from said chamber with either fuel, and heating means for heating all nf the fuelfrcm said chambcry bntli the normal fuel supply and the primed fuel.

In witness whereof I hereunto subscribe my name this 25th day of January, 1917.

CALEB E. SUMMERS.

Jane C. Tom, Done'rinr L. TREE.

cemprising two sources of supply for Timing device for supplying at predetermined times an,

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