Патент USA US2406517код для вставки
l Aug. 27, 1946. Y ` T_ L, TRlpLETT ' 2,406,517 VAPORIZING MEANS ' ì Filed May 1, 1945 46 25 #A 11m/5, MECH, Fos Tem; A/AF'fR/q Patented Aug. 27, 1946 2,406,517 ,'»UNITED STATES " PATENT OFFICE _ , >2,406,517 vAPoRIzING MEANS ` ` Thomas L. T?pletanncinq, Calif. Application May» 1-, 1943i, serial No. 4855399Á 10 Claims. (Cl-r 48-180), 1 , Y My invention relates to- devices for vaporizing and mixing fuel in preparationtfor combustion. Whiler the invention may be applied' to the treat ment' of various types of liquid' fuel for various specific purposes, it is being initially embodied in a device for use between `the carburetor and the intake manifold of 'a automobile. For‘the purpose of the present disclosure, I elect to describe this initial embodiment in the knowledge vthatsuch a inexpensive. and simple fuel vaporizing means thatmaybe used on. an: automobile to substan tially'increase the mileagek per gallon` derived' from themotor fuel. ‘ r I have discovered that; the problem of, using suiiiciently fine screen for eiîiciency and the prob lem of using a pluralty of` such screenszwithout ' seriously choking the fuel and air supply may bel solved by supplying energy to the air stream description will be adequate guidance for apply 10 fromf an outside.- source, and I have» furtherjdis' ingr the invention wherever it may yhave utility. covered that an arrangement. for adding kinetic My invention* is characterized bythe'concept energy to the fuel-laden air stream may be de of forcing fuel-laden air through aß perforate signed to- maintain engine> ‘efficiency regardless ‘ of means such as a screen, thereby to achieve such changing loadand changingenginel speed. I pre turbulence, flow-velocity, channel restriction, and mechanical action as to break up, vaporize, and mix the fuel> for maximum combustion eñiciency. I have discovered that the desired processing of a fuel-laden air` stream may be accomplished 15 fer to, accomplish this by rotatingI an. air screw', adaptedï to. force the fuel-laden air through. the screens, by an independent power source, such as anr electric motor. I have found it very desir- ` able, if notfessential, to’have the independent by using relatively fine screen,„preferab1yr as> fine 20 power source rotate the. air screw at: a substan as 130 mesh. I have further discovered»A that it , tially constant and relatively high rate of speed, is' desirable toemploy a plurality of such screens ` regardless of thev normali velocity of fuel-laden spaced apart for successive action on thev fuel' laden air stream. Unfortunately, however, even a single screen of relatively'fine- mesh `offers seri ous resistance to air flow `and maysohind'er air and fuel supply to the internal combustionvv engine ‘as to more than offset any< advantage gained by improving the fuel mixture. air passing from the carburetor to the engine. f By suchy provision, Ilam able to obtainl complete and satisfactory mixing at all engine speeds, ` which: has not been possible hitherto. This in sures: ready- starting of the engine, even when cold, and greatly increases overall efiìciency of the fuel system at all`r speeds ofV operationof the If an air screw is employed to rotate the screen, the situation is 30 engine. made worse by additionallyrobbing the airstream Other objects. and advantages'of my invention g of kinetic. energy; . I am aware that’ the use of’ screen means for this purpose has been suggested heretofore. For example, stationary screen means are foundV in some> prior disclosures, while other disclosures teach the use of air screws to derive'- kineticl en ergy fromV the fuel-laden airy stream for continu ous rotation of the screen means. ’ willi be apparent from the following description; taken with the accompanying drawing: In the: drawing,> which- is to be regarded as merely illustrative, Fig. 1 is aview partly in section and partly in side elevation: of a. preferredy form of myY inven tion; Fig. 2 is a transverse section: taken as indicated Within my knowledge, none of these prior art 40 by theline 2:--2 of Fig. 1;. » arrangements involving either stationary or ro Fig'. 3 is a transverse section taken as indicated tary screens has solved therproblem of employing by the line 3--3`l0f F151.; ' ' " suiiiciently fine mesh screen for efficient fuel Fig. 4 is av fragmentary section taken on. adi treatment without reducing the rate of ` airv flow ameter throughf` one> of the impellers in Fig` 1; to` a intolerable degree. Thel various prior art arrangements, furthermore, vary widely inv effl Fig; 5 is- asimilar fragmentary sectional view cien'cy under varying> engine loads and varying indicating a construction of a modified form of and engine speeds'. It is` an object of' my invention to provide for employing ñne mesh screensv in any desired num ber in an intake passageA of' a combustion engine without the usual penalties heretoforel encoun tered, and to do s0 withoutwide fluctuations. in eiiìciencyfunder varying operating conditions. A further object of my invention. isA tot provide an . the invention. ` ` ` The preferred >form of my invention shown >in Figs'. 1l’ to 4‘ includes-1 a: cylindrical passage means generally designated t!) having allateralv elbow Iv I, the passage'- means and elbow constituting >that part: of: the- down-draiêt 'intake passage of anxin-> termal. combustion. engine between acarburetor> t2' off-thesengine and an intake manifold~ I3. For *2,406,517 screen assemblies. The rotation of the screens in creases the turbulence of the fuel-laden air and communication with the manifold I3 I provide a special fitting I5 having a bottom ñange I6 to match the top flange I1 of the manifold I3. In a well knownmanner these two ñanges with an in addition causes the wires of the screens to move laterally into impingement with fuel drop lets. The fuel reaches the intake manifold I3 intervening gasket I8 may be joined by suitable thoroughly vaporized and thoroughly intermixed ’ bolts 26. The fitting I5 vprovides an annular seat with the accompanying air. The degree to which 2| to receive the lower cylindrical end of the passage means .Ill and is joined to the passage meansby suitable screws 22 vextending through a gasket 23. As' indicated in Figs. 1 and 3,` the the impellers impart energy to the fuel-laden air ' stream is at least suificientto substantially com 10 fitting I5 provides a transverse web 25 having a pensate for- the resistance? to fluid ñowfimposed bythe various screen assemblies 46. In practice, itis found that the degree to which the impellers suñ'icient number of relatively large apertures „ 26 to permit ready air flow from the cylindrical ' f exert a boosting effect on the air stream is'not ' critical, _variation in the design and efficiency of the impellers being possible without sacrificing passage means I6 into the manifold I3.~í-> The cylindrical upper end of the passage.' the lmaterial advantages inherent in the inven tion. Injone test the device, substantially as means I0 may be closed by a p1ate‘2'I and‘a'suita'», able gasket 28, the plate and; gasket being;` held A shown inFig. 1, increased by yLll% the efficiency in place by suitable screws 30. Mounted on the upper side of the vplate -”21'is a Y motor 3l which may be held in place by suitable means suchv as a band 32«having its spaced ends of- anautomobile engine measured in miles per gallon. ‘ , The' purpose of Fig. 5 isjto indicate how the described arrangement'may be modified to use anchored by .two of the screwsY 36 as indicated in stationary screen assemblies instead of'rotary screen assemblies. In the arrangement shown in Figli'. AThe motor 3I may be energized through v a cable 33 bythe battery employed ‘inthe ignition systemV for the engine and may be controlled by 25 Fig. 5, impellers generally designated 5'I of the same' construction as the impellers 45 are' mount an> ignition‘switch 35: so .that when the ignition edxin the same manner on a motor-.driven axial switch is turned on, the motor 3| isvenergized. shaft 58: Fig. 5 shows a setscrew 66 extending In the preferred form of my invention, Imount through the-hub 'portion 6i of one Vof the impel-=` a -shaft'36 inside the .cylindrical passage means Ißïaxially'thereof for power rotation by the mo 30 1ers.;A Each lofthe screen vassemblies v employed y in this ¿modified form ofr the invention mayibe‘held tor 3|".r Y:Fign'l showsa vreduced lower end'31 of in a stationary"manner> by suitable means engag the shaft- 36 journaled in a suitable anti-friction ing peripheral portions' of the `assembly.`_ Thus, bearing 38 that is mounted in the transverse web in Fig. 5 a screen assembly 62 comprisingl three 255an`d.also shows the upper end'of the shaft formedvwith a socket 40 to receive the end of a 35 layers ¿of screen, as heretofore described, is ípe- l ripherally engaged‘between two sleeves 63 that , smaller shaft 4I extending downwardly from the line ythe interior of the passage means"l0.ï The motor 3|; ’The two shafts may be keyed together by 'aÍsuitable cross pin 42'. The'motorV shaft 4I screen assembly 62 in Fig.f5 is centrally aper- . y tured to clear the rotating shaft 58, the screen isijournaled in ‘af suitable .anti-friétion bearing 43 -carried by> the top'plate 21.; .l '- In variouspractices -of my invention,A various 40 screens in` varying number may be placed in the passage means I6, and various impellers'in vary of'v the --invention operates in substantially, the ing number may be mounted on the shaft 36.y In same ~f vIn the manner>A `practice as the of my preferred invention, form.it is contenir , theiillustrated preferred arrangement, both îthe screens and the impellers are carried by the shaft 36.' assemblyv includingfa suitable flanged ring 65 to line the' aperture andghold» the three layers of the screen assembly together. This second form platedy that lthe design of lthe impellers 'and'fof the associated motor forf'useV Awith an internal combustion engine will be such that the motor 1 shows three impellers or blowers 45 - and shows screen'assemblies 46 mounted on the 3I will contribute energy'to the fuel-laden air opposite ends of each Yof the impellers. Each impellei' 45 has Aa hub portion 4'I'keyed 50 stream when the air stream tends’to flow at low velocity due 'to idling of the engine or otherwise, ` to’theshaftA 36 by a suitable setscrew 48 and has and, on the other hand, when the engine causes anulnber‘òf blades 50 preferably of small helical the »fuel-'laden air .stream to flow at 4relatively high velocity,the air stream will-drive the motor fEach'screen assembly 46 `comprises a fine mesh configuration. " ’ _ ‘ » ~ - i screen 5I reinforced on one side byan upper, re1 55 as a generator t0 contribute to Vcharging of the battery. `-'Thus, even with the enginev idling,>my n ative'ly coarse Jscreen >52- and reinforced on the other sideby a lower, relatively coarse screen 53. If the impellers are made of relatively soft ma teriaLÍsuch as aluminum, the three layers com prising each of the screen' assemblies 46 may be 60 anchored by suitably hardened pins 55 driven in to suitable bores 56 in theassoc‘iated impeller. In ythe initial embodiment of my invention, the metal screen 5IV is preferably 130 mesh per inch, while the two reinforcing screens 52 and 53 are cut ' from ordinary copper or brass -window Y screen.4` The Vtwo screens4 52 yand 53 _are notre lied upon for any function other than lreinforce ment of the fine mesh screen 5I. ' device .provides 'a complete mixing of the fuel and‘ air stream'to insure more -efficient combus tion. Furthermore,> dueto such complete mix ing, my invention permits ready starting fof `an automobile ‘engine when-the sameis cold with out f Supplementary 'enriching of the mixture> through the use ofthechoke. , „ , Although the preferred embodiment of `:my in vention as -ill'ustrate’dïand previously described herein‘is'» adapted for vuse with a down-draft carburetor'of the standard lautomobiletypa-'I do not intend _to be limited thereto.l ForY ex ample,V VI' have discovered» byY interchanging -the 70 down-draftcarburetor I2 for an up-draftfcar buretor, of Yany standard ._type, and attaching it vention may be readily understood from the to thevñtting I5 inthe place ofthe manifold' I3; foregoing description. The three rotating im and by attaching the manifoldto theelbow II pellers 45 force the fuel-laden air delivered from in the place of the carburetor I2, andxby revers- . the carburetor I 2 and the elbow II through the exceedingly 'ñne openings I of the -successive 75 ing the direction of rotation of the motor 3 I ,that , The operation of the preferred ‘form/of my in 2,406,517 5 results can be obtained which are fully com parable to those attained by the use of the down draft carburetor i2 in the manner illustrated in the drawing. It will therefore be appreciated that my invention is equally applicable to either up-draft or down-draft carburetion. The preferred practice of my invention de scribed in specific detail will suggest to those skilled in the art various changes and substitu tions under my basic concept, and I reserve the right to all such departures from my disclosure that properly lie within the scope of my appended claims. air stream in the intake passage leading to an in ternal combustion engine, comprising in com '5 bination: passage means; a closure for one end of said passage means; a .motor carried by said closure; a drive shaft cormected with said motor and extending through said closure and axially into said passage means; a plurality of spaced screen assemblies disposed about said drive shaft; a plurality of impellers on said shaft and dis posed in alternatingrelation between said screen assemblies; a lateral connection to said passage means adjacent its end carrying said motor; and means providing for air passage at the opposite ¿end of said passage means, said motor being adapted to be driven at a' relatively high rate of Speed independently of the speed of said internal I claim as my invention: l. Means for vaporizing f?el entrained in the air stream in an intake passage leading to an internal combustion engine, comprising in com bination: passage means providing said intake passage; a plurality of spaced impellers disposed combustion engine. transversely across said passage each impeller _ y 6. A combination according to claim 5 Where in mountings for said impeller shaft are provided whereby relatively higher engine speed will cause having ya plurality of blades; a plurality of spaced said motor to serve as a generator by reason of screen assemblies transversely disposed between consequent relatively higher air trave1 through said impellers and supported upon edges of said said passage means. Y blades for rotation therewith; a drive shaft car 7. A combination according to claim 5 Where rying said impellers, said drive shaft extending 25 in certain of said screen assemblies include screen exteriorally of said passage; and a motor carried the mesh of which is in the order of 130 mesh by said passage means and connected with the per inch. extending portion of said drive shaft for driv 8. A combination according to claim 5 where ing said impellers independently of operation of said engine. » 2. Means for vaporizing fuel entrained in the air stream in an intake passage leading to an internal combustion engine, comprising in com bination: passage means providing said intake in a screen assembly is secured to each side of 30 each impeller. » 9. A combination according to claim 2 where in a screen assembly is carried by each impeller andeach screen assembly comprises a fine fuel dispersing screen and a coarse reinforcing screen passage; a, plurality of spaced bladed impellers 35 secured in contact therewith. disposed transversely across said passage; a plu rality of spaced screen assemblies alternating be tween said impellers and disposed perpendic 10. Means for vaporizing fuel entrained in the air stream in an intake passage leading to an internal combustion engine, comprising in com ularly to the axis of said passage, each screen bination: passage means providing said intake assembly comprising a fine fuel-dispersing screen 40 passage; a plurality of spaced impellers disposed and a relatively coarse screen reinforcing said transversely across said passage, each impeller fine screen; a drive shaft carrying said impellers; having a plurality of blades; a plurality of spaced and a motor connected with said drive shaft for screens carried upon and supported by said im driving said impellers. peller blades in positions substantially perpendic 3. A combination according to claim 2 Where- , ,is :lular Lil to the axis of said passage; and a drive shaft in relatively coarse reinforcing screens engagev connected with said impellers and extending ex the opposite sides of each ñne screen. teriorly of said passage, said shaft having rmeans 4. A combination according to claim 2 Where for driving connection with motor means to oper in said impellers have hubs and said screen as ate said impellers and screens. semblies are respectively secured to said hubs. 50 5. Means for vaporizing fuel entrained in the THOMAS L. TRIPLETT.