US 1296364 A
Description (OCR text may contain errors)
. C. S.'BURT0N. y FUEL `FEEDING DEVICE FOR INTERNAL COMBUSTION ENGINES.` APPLICATION FILED lULY, 9. 9l7,
,296,364. l E. Patented Mar. 4,1919.
' lm Movements in Fuel-lleeflinxgl Devices for .s ilu CHARLES S. BUELTGN, DE' OAK RK, ILLNGES.
FUEL-.FEEBIQ'G DEVCE EGR INTERNAL-COMBUSTIN ENGINES.
Specification of Letters latent.
A@alimenteifi Mar., ai, lllllx ipplieetoil led July 9, 19.1.7. Serial 1 o. 179,580.
2"( all w/om may concern.'
Be it known that LCH/@LES S, BURTON, n, citizen of lie United States, residing at @alc Perla, f'glie county of Cook incl Sini@ of Illinois, have invented lieuv and useful lnteriialfloiul:uetiou Engines, of Wliicli the following is a specification, reference being luid 'lo *flee iceoiiipenyiiig drawings, orming' :i Ser irl'iereof The purpose of vide mi impi'ovecl vacuum fuel 'feed his inveniioii is io 1 evice of alle nature f fior un internal comb-uetion emilie. consists iutlie elemenis und;
fem -e oli' eoiislructiou Shown and described as inugeaed in 'alie eleiuie. l
.ln lie lli-rinvii Figure l 1.
Cle elevation showing a, por-- tion of Aau engine 'of au utomoliile equ-ippecl willi this invention.
Fig'. 2 a per/fly Sectional smile elevation showing' in conventional form u vacuum 'uel feed device, und in vertical section the low level main supply tank und liquid fuel flue, eomiectione therein which constitute the di?? tingijuisliing; feature of this invention.
lig. 3 a (liugmuuniaticwiew showing the invention applied directly to the float cliaiiilier of the enrbiireter uf'iliout the interveiil-ioii o'l' ille .usual vecu-imi taiil,--tlie limit chamber being shown in axial secigioii.
The engiiie intake manifold., l, is shown connected with u vacuum fuel feed device of familiar form comprising' is supplemental reservoir, 2, for supplying the carlo'urete?7 uml fi-so-eelleel fieuum chamber, 3, .iiilo Wliioli 'llieliqi'eiil fuel is l'ilell by the suction 0f ille engine *from zi low level 'mein tenir, il, and Supplied liv :if "1U lo ree yNoir,
cimiiilier 2 oi being proclue luy is suction com of lire ilu-bee 5, leading im im z to engine mssini'lfolil. lle Strueure is of tlie liqu l L) neet-imi by means the. 'ie-uur@ ieri fair fles lfeil, 'zimil fr zii aud Cieli The eziluires Cousitusiug "elle, pree feuioii .fire leeigneci io oiereoiiie u efeet which lieg been ex perieneecl in alle use oi vacuum, i'uel reeel (leif'ices, arising from the fue?, "liat under i eoiulitious of Service of the engine, io` produeecl by the engine is liable io lie limi.J Guile lo lill. 'zlie liquid from llie mein low ,vel tfmlc to ille vacuum olifiiuril when sueli coilitioiiss eoniiiue for el? Knef es when ascending :i
Column This uepirzitioii or ziergrtion the points of the ieeli, et leest. iii the sur slope requiring the engine to run with e, Wide-'operi tlirotile for a, Considerable time, the reserve fuel accuiriuleted in the reserve chemio r, 2, becomes exhausted before il: can be reeupplied from tlie main tank. This defect is overcome in alie presei revise by im expedient which amounts substantially to causing the suction for liifuirggg lie liquid from the low tank to operaie uilen 'the liquid in lie low luuk in Snell a` manner to atomize lo): aspiration so that. it not tliereu'cer liieil s liquifl eoluiim bu 'either ue .fi liquid freig'liteil ziir eelumi, or leest e highly eeraefl liquicl. .Column which cri-ii lie sustaineii by 'alie aimosplierie [pressure op? ei'aling on l'lie surface of tlisliquicl `iii the mein' izmir lo .f1 much greater height than that pressure would susaiii e, solid; liquid fecte by providing liliepipei 27, -iiecis the low levelltsmk, 4; wirli l elieiiiloer, 3, Wil-l1 a mouth-piece iii Suid tzmlc,
wifiely-extended, iimiel-elmpe, preierzilily 35 limring its margin serrated or provided Wiitli a iiiultipliciliy of slits, 7e, moutleuiieee being Connected lexibly,' 'flair ii'l iexi'ble tube, 8, with die pipe, 7, of which ii; forms, in effect e eontiouation, unil being' supported lay a. limit,l S), adapted with respect lo tlie Weight the mouth-piece und Clie flexible connection (so liold tlie mouth-piece Witli its serrated or slittefl marginal elige, rl-ipping face oi lille liquid in the muli. The result of this coiisslruelion that die Suction. 0perating' llilougli the monilipiece5 drawing in lie air, close lo llie surl'uee oi lille liqi el iu sub-divided streams or jele7 entraine me liquid in spray :ind so carries nu iiilermixture of liquid, wliich'mey be leseriliefl aerateil liquid., or liqiiiid-reigliiil air, ee-
coreling to the proportionel of the iii-eimisiure, Wlilli will vary with Several. Co'ufli- 199 lions, Sueli lemperature, force of iilie eueliony sirio ilerilili of subnereion ol the edge oi? the nioutli-iiiieee. The result will be aftiziineil, even tlieiurli lille depth mouth-piece slioulrl be suliri'iergeil more deeply' lizm ille (leptli of ilie slits, 7, Wlieii tlm .euctimi :ulequule lo pull iii lille u ir izlii'ougli blip 'lmp `\.'liic'li"will be formed by suoli siilimersion` uml mieli eiilimersion will ocvur in ruse# or' liixgli Suction, ille partial vacuum pro-lueofl El@ miller the expanded mouth-piecelending il: io be lepwseefh 'agrumi-il, lzlie resistance caused by the buoyancy of the float, so that when adjusted originally Withthe serrations only partly submerged, upon high suction the submergence may include Vtlle Whole length ofthe slits forming the serrations, but as indicated Without defeating the operation of the device, because the saine high suction will pull the air in through the liquid 'trap thus formed.
In orderfthat this mixture may not be drawn over from the vacuum chamber, 3, directly into the manifold, to lso large an extent as to over-enrich the explosive charge furnished to the manifold through the carbureter, there is provided at the discharge end of the pipe, 7, in the vacuum chamber, 3, a baille plate, l2, against which the mixture discharges which causes precipitation mechanically of the liquid contained in the discharge, leaving the air drawn in only moderately charged with the fuel vapor, the liquid thus precipitated accumulating in the vacuum chamber, 3, and operating in the usual manner of this cla-ss ofV devices. lnstead of the serrations in the edge of the mouth-piece, 7", the mouth-piece mayV have a finely perforated area as shown at 7 in Fig. 3. Either form of mouthpiece may be `used Whether the connection is made to the .loat chamber or to the vacuum clxainfber'of an auxiliary vacuum feed tank.
The expedient above described for lightening the liquid column leading from the main tank, makes it possible to dispense with the customary supplemental elevated vacuum tank so called, and conduct the liquid fuel supply directly to a reservoir which constitutes the carbureter lloat chamber, and such a 'structure shown in Fig, 3, wherein said float chamber, 15, is connected with the main tank, 4f, by the pipe, 7, which discharges herein against a baille formed by the top of the chamber causing vvinecl'ianical precipitation of the liquid' particle carried in suspension. ln myA claims l intend the term reservoiim to apply equally to the reservoir afforded by the lcarburetor float'chamber when'the pipe, 7, leads directly to that chamber and to the reservoir agorded by the vacuum. feed tank `when said pipe, 7, leads to such tank.
l clairnzl. ln a vacuum fuel feeding device in combination with a low level main supply tank, a reservoir at a higher level, a duct leading from the low level tank to said reservoir, and means for inducing suction therethrough; a horizontally-extended mouth-piece for said duct in the low level tank, and means for positioning said mouthpiece with its intake margin substantially as the surface of the liquid in 'the tank.
2. in a structure such as defined in claim l, the margin of the mouth-piece being serrated. l
3. ln a structure such as defined in claim l, the means for positioning the mouth-piece at the liquid surface, consisting of a float which carries the mouth-piece and a flexible tube connecting said mouth-piece with the connection of the duct to the tank.
al.. .ln a structure such defined in claim 1, a baffle in the reservoir against which the duct discharges for precipitating yliquid from the mixed air and liquid discharged.
5, lnA a structure such as defined in claim el, foregoing, the discharge connection in. the reservoir being positioned for directing the discharge against. the wall of the reservoir whereby such wall constitutes the baiile.
ln testimony whereof, have hereunto set m i hand at Chicago llinois this 27th dav of June, 1917 l Clllltflil S, BURTON.