Патент USA US2090673код для вставки
Aug. 24, 1937. 2,090,673 J. E. GOMBOS I AUXILIARY FUEL ATOMIZER FOR INTERNAL COMBUSTION ENGINES Filed Sept. '19, 1934 ' I 03 % MQ I . INVENTOR. k/Of/N E. §0M505 W W M Am w 2,090,673 Patented. Aug. 24, 1937 UNITED, STATES . PATENT oer-‘ice 2,090,673 AUXILIARY FUEL-ATOMIZER FOR IN TERNAL COMBUSTION ENGINES John E. Gombos, Elizabeth, N. J., assignor of one-half to Egbert Stockert, Vienna, Austria Application September 19, i934, Serial No. 744,720 In HungarySeptember 19, 1933 10 Claims. (Cl. 123-122) This invention relates to improvements in atomizing devices for use in conjunction with internal combustion engines, and has for its ob ject to permit of the attainment of practically 5 perfect combustion of a very wide range of fuels including those of» high boiling point, with the usual types of carburettor, and at all speeds of the engine, without the necessity for alterations in or special adjustment of the carburettor. For 10 this purpose, the present invention provides a novel type of unit for interposition between the engine and the carburettor comprising an intake manifold of special construction and in com bination therewith, and with the exhaust system 15 of the engine, a fuel atomizing and mixture pre heating device of particular construction to be detailed in due course. - Fig. 2 is a transverse section of the combined manifold. . Referring to Fig} 1, the device consists'of the induction pipe 8 having adjoining it in .a mid way position the ?anged tube I. Within the tube I there is arranged the atomizing cham ber 2 which on its inner surface may be provided with the electric heating element 311, 3b. This heating element 3a, 3b is connected ‘by means of the conductors 31, 32 to the source of current 10 3. Apart from the electric heating element 30,, 3b, and separated therefrom by a partition, there is also providedv in the atomizing chamber 2 a system of propeller blades 5 adapted to rotate about a shaft 4, The device according to the ‘invention further comprises an annular cham ber or jacket Hlb which ‘surrounds at least part As is well. known, the majority of auxiliary ,of the atomizing chamber, and which communi- ' cates with the exhaust pipe 9 by-means of the atomizers for heavy fuels for use with internal 20 combustion engines only begin to supply a com bustible mixture after the attainment of a cer pipes l0 and Illa, and on the other hand with the outside atmosphere by means of the dis--_ charge pipe lllc. This system of pipes l0, Illa, and H10 thus constitutes, ‘together with the an tain speed of the engine, so that in starting and during slow running of the engine the less volatile nular chamber or jacket lob, a by-pass from the‘ particles of the fuel pass into the cylinders in a exhaust pipe of vthe engine for the heating of 25 non-atomized state, with the. result that the com 25 bustion is imperfect, smoke and soot formation , the atomizing chamber by means of the hot ex is set up, and the engine loses efficiency and In the induction ‘pipe 8 there may be further runs uneconomically. It has also been proposed ‘to heat the induction pipe of internal combustion arranged a plateta which is provided with per-. engines with a view to assisting the vaporization vforations 6b, and of which the portion'extending and combustion of heavy fuels. The devices into the tube 1 forms with the latter the an haust gases. , ‘ ‘ _ ' hitherto proposed for this purpose, however, suffer . nular' space 1, ‘la. On the outside of the exhaust - from the drawback that they are apt to produce an overheated fuel-air mixture which, on enter manifold 9 there may be provided the cooling and heat-distributing ribs Ila, llb, He, He (Fig.'2). 35 ing the relatively cooler engine, becomes to some Finally, between the exhaust manifold 9 and the induction pipe 8 there may b'eprovided an air extent condensed and thus likewise leads to im cooling space l2 communicating with the outside perfect combustion and uneconomical running. v The device according to the present invention' atmosphere (see Figs. 1 and 2). The ‘suction of the engine draws the vfuel obviates thev above-mentioned drawbacks and air mixture from the carburettor in the direction 40 40 consists essentially in an atomizing chamber of the arrow la into the atomizing chamber which v interposed between the carburettor and the in duction pipe of the engine and provided with is suitably heated by the‘ electric heating element heating means for the maintenance of a suitable 3a, 3b connected into circuit with the‘sourcev temperature during starting and slow running of of current 3 on the starting of- the engine.‘ The I 45 the engine. The inventionfurther provides for fuel particlesin the mixture are further broken the automatic discontinuance of the said heating up by the action of the rotating propeller sys-_ at the required moment and for the subsequent tem which is rotated by the suction of the engine, heating of the atomizing chamber by means and at the same time ?ung thereby against the, of the combustion gases from the exhaust of the partition covering the heating e1ement‘3a, 3b. 50 engine. ' ‘ ' Alform of construction embodying the inven The fuel thus becomes extremely ?nely atomized and thoroughly commixed with the air, and they tion is shown by way of example in the accom~ mixture thus produced passes on into the induc panying drawing, in which: tion pipe 8. Fig. 1 shows the entire device in horizontal 55 longitudinal section. - 7 I ‘ ~ ' - _ , As soon as the engine 'has attained a. certain speed the heating element/is cut off from the 55 2 2,090,678 izing means in the said casing, a jacket surround source of current 3, whereupon the heating jacket ' lllb is brought into action. ing the said chamber at least in part, a by-pass The hot waste gases pipe from the said exhaust manifold and com pass from the exhaust manifold through the by pass pipes I0 and Illa intothe annular chamber 1 0b where they give up their heat to the atomiz municating with the said jacket, a discharge pipe. connected to the said jacket and communicating ing chamber 2, to promote the atomizationof the '_ with the outside atmosphere, 2. ba?le plate dis fuel after the auxiliary. electric heater has been .posed substantially parallel to the side of the said induction pipe nearest the said chamber and cut off. The by-pass pipes ID are disposed par extending into the annular space between the said chamber and tubular casing as far as the 10 ' allel with and in close proximity to the portions 10 of the induction pipe 8 furthest removed from _ the heated atomizing chamber 2, so that any non said jacket, and perforations in the said baille ’ vaporized fuel happening to be carried along by the mixture into the induction ‘pipe 8 becomes pipe being enlarged in diameter for‘ at least a . plate, the said by-pass pipe and the said discharge portion of their length 'and disposed alongside effectually vaporized‘ in the latter in consequence and in close proximity to the said intake manifold. 15 3. The combination with the intake and ‘ex pipes l0 traversed by the hot exhaust gases. ' 15 of the heat transmitted thereto from the by-pass The particles of fuel passing unvaporized into I haust manifold of an internal combustion engine; of an auxiliary fuel atomizer comprising a tubu lar casing adapted to be connected to said in take manifold, means forming an atomizing. 20 the induction pipe and condensing therein when ' the engine is cold or running slow pass through 20 the perforations 6b in the plate Ba-into the an nular chamber ‘I, ‘la where they are vaporized chamber within said casing and spaced from the by the heat from the chamber lilb and returned in , walls thereof whereby an annular space com-I a gaseous state into the induction pipes as a fuel municating direct with said intake manifold is formed, means for preliminary heating the fuel reserve. The by-passed exhaust gases, after hav 25 ing ful?lled their purpose in assisting the atomi zation of the fuel, escape into the open by way of charge vin said chamber, comprising a jacket 25 partly occupying said annular space and a by pass pipe connecting'said jacket with said ex haust manifold, and secondary heating means the discharge pipe lilo. ‘ The actual construction of the auxiliary atom ' izing device according-to the present invention ‘ comprising ba?le ‘plates for receiving the non 30 vaporized portion of the fuel charge within said intake manifold and extending into said annular ' "from the spirit and scope of the invention, the space to said heating jacket, whereby complete ; . construction here described and illustrated being intended merely to serve as an example. So, vaporization is obtained. 4. The combination with the intake and ex-' 35 for instance, when highly volatile fuels are‘lused 0 can be modi?ed to any extent without departing haust manifolds of an internal combustion, en gine and a. source of electric current ;. of an , 35 such as gasoline, or benzine, the electrical heat ing means may be dispensed with and also the baffle plates, the main purpose of the invention being to maintain the fuel charge at the constant auxiliary fuel atomizer comprising a tubular cas ing adapted to be connected to said intake mani fold, means forming an atomizing chamber with in said casing, means for preliminary heating the charge in said chamber, comprising laterally dis temperature until it enters into the engine cylin 40 ders. This purpose is accomplishedas indicated in the speci?cation by circulating the exhaust posed electric heating elements in said chamber ' ' gases around the atomizing chamber and by ar adapted to be connected to said source of electric ranging the by-pass pipe as. well as the discharge pipe' alongside and parallel to the intake manifold current whereby said fuel charge is partly vapor- ized, and secondary heating means at least partly 5 so that there is a heat exchange relationship be within said intake manifold, whereby complete tween the two. . . . . The new device according to the ‘invention vaporization is obtained. can be constructed. either as a small unit for I interposition between the carburettor .and the in 50 duction pipe of the engine, or, more particularly 5. The combination with the intake and ex? haust manifolds of an internal combustion en 'gine and a source of electric current; of an ‘aux 50 iliary fuel atomizer comprising a tubular casing for use with engines having the induction pipe adapted to be connected to said intake manifold, — _ and the~exhaust manifold on the same side of means forming an atomizing chamber within said , the engine, as a larger unit comprising exhaust * casing and spaced from the walls thereof where by an annular space communicating direct with‘ proper. . said intake manifold is formed, means for pre liminary heating the fuel charge in said cham I claim: 5'5 manifold, intake manifold, and atomizing device ‘ 1. ‘In an internal combustion engine an intake ' manifold,,'an exhaust manifold at least partly ber, comprising laterally disposed heating ele ments in'sald chamber adapted to be connected ._ 60 surroundingthe said intake manifold, a tubular to said source of electric current, a jacket partly 60 casing adjoining the said intake manifold, atom- . occupying said annular space and a by-pass pipe connecting said jacket with said exhaust mani ing the said chamber at least in part, a by-pass fold, and secondary heating means comprising ba?le plates for receiving the non-vaporized por pipe from the said exhaust manifold and com 65 municating'with the said jacket, and a discharge " tion of the fuel charge within said intake mani fold and extending into said annular space to pipe connected 'to_ the said jacket and communi izing means in the said casing, a jacket surround ‘ eating with- the outside atmosphere, the said by- _ said heating jacket, whereby complete vaporiza pass pipe- and discharge pipe being ‘enlarged in diameter-for at least a portion of their length 70 and disposed alongside and in close‘proximity to tion is obtained. _ ' -, ' , - 6. A? fuel vaporizer for internal combustion engines of the type having an intake manifold, an exhaust manifold and a carburator compris 2. In an internal combustion engine an intake -'ing a_ casing positioned intermediate the intake manifold, an exhaust manifold ‘at least partly manifold and the carburetor, an atomizing cham surrounding the said intake manifold, a tubular ber in said casing communicating with the car the said intake' manifold. - v 75_ casing adjoining-the said intake manifold, atom ‘ burator and the intake manifold,v a heating jacket 3 2,090,673 ' at least partly surrounding said atomizing cham ber, means for circulating the exhaust gases in said heating jacket, said means being disposed alongside of at least" a portion of the intake\ manifold and in near proximity thereof whereby uniform temperature of the vaporizing fuel charge is obtained'and condensation prevented in said intake manifold. 7. The combination with the intake manifold 10 and the exhaust manifold of an internal com bustion engine; of a fuel vaporizer comprising a casing adapted to be connected-to said intake manifold and to the carburator oi the engine, an atomizing chamber within said casing, commu nicating with the carburetor and the intake man ifold, a heating jacket at least partly surround ing said atomizing chamber, means for circu lating the exhaust gases in said heating jacket, said means comprising a by-pass pipe from said 20 exhaust manifold and a discharge pipe commu-_ nicating with the outside atmosphere, said by pass pipe and said discharge pipe being disposed alongside of said intake manifold and in near 9. The combination with an intake manifold, an exhaust manifold and a carburator of an internal combustion engine; of a fuel vaporizer comprising a casing connected intermediate said intake manifold and said carburator, an atom izing. chamber in said casing communicating with the carburator and the intake manifold, a heat ing jacket at least partly surrounding said atom izing chamber, means for circulating the exhaust gases in said heating jacket, said means com 10 prising a by-pass pipe from said exhaust mani fold and a discharge pipe communicating with the outside atmosphere, said by-pass pipe and said discharge pipe being disposed alongside and in close proximity to said intake manifold at least for a portion of its length, ba?le plates posi tioned in heat exchange relationship with said heating jacket and extending within said intake manifold substantially parallel to the walls thereof. - - . 20 10. In an internal combustion engine, means forming an atomizing chamber, a heating ele ment situated within said chamber for the pre proximity thereof, whereby uniform temperature liminary heating of the air-gas mixture, an ex of the vaporizing fuel charge is obtained and haust pipe and a jacket situated adjacent said 25 condensation prevented in said intake manifold, atomizing chamber in heat-conducting relation 8. The combination with an intake manifold, an exhaust manifold and a carburator of an internal combustion engine; of a fuel vaporizer comprising a casing connected intermediate said ‘intake manifold and said carburatonan atom izing chamber within said casing communicating with the carburator and the, intake manifold, a heating jacket at least partly surrounding said atomizing chamber, means for circulating the exhaust gases in said heating jacket, said means being disposed in heat exchange relationship with said intake manifold and bailie plates positioned in heat exchange relationship with said heating in jacketLsaid ba?ie plates extending within said intake manifold substantially parallel to the walls thereof. - ship thereto, said jacket being adapted to be , connected with said exhaust pipe to transmit ex haust gases passing therethrough, the heat of the exhaust gases being’ transmitted to said 30 atomizing chamber to heat the air-gas mixture after the interruption of said preliminary heat- ‘ ing, another chamber adjacent said jacket and in heat-conducting relationship thereto, and means connected with the last-mentioned cham 35 ber for collecting unva'porized fuel particles and for transmitting them to the last-mentioned chamber, said fuel particles being vaporized by the heat transmitted to the last-mentioned cham 40 , her from said jacket. JOHN E. GOMBOS.