US1608846A - Carburetor - Google Patents

Description

Nov. 30,1926, 1,608,846

E. FAUCONNIER ET AL OARBURETOR Filed Dec. 20. 193 040 7 Edouard Iauconnier Zf Albert Simpre 7 hi v |NVENTOR5 til Patented Nov. 30, 1926.

EDOUAR'D FAUCONN'IER, OF NEVEBS, AND ALBERT SIMPEBE, OF PARIS, FRANCE.

GARBURETOR.

irrespective of the hygrometric state of the air, a combustible gas resulting from the.

homogeneous intermingling of air and vaporized gasoline or the like and having as uniform a composition as is required so as to afford a substantially uniform calorific power. Now, it is a well known fact that the atmospheric air drawn into the appliances intended for producing carbureted air frequently contains, particularly at certain periods of the year and in certain regions of the earth, an important amount of moisture. lVhen coming in contact with, the gasoline in the course of evaporation, the said moisture condenses either as mist or as frostand by thus settling down as misty or frosty film upon the surface of the gasoline more or less prevents the latter from properly contacting with the incoming air, as a result of which the richness of the carbureted air changes. Furthermore, when the feed of carbureted air is interrupted, the evapora tion of the gasoline or other fuel continues, this results in the production of too rich a gas mixture, this being also partly due to a slight reheating of the air.

The primary object of the presentinven tion is to obviate the drawbacks hereinbefore referred to by providing the hitherto commonly constructed appliances for producing carbureted air of the various types with acarbureting casing having a device based on the refrigeration principle for con densing the moisture of the atmospheric air, the air thus deprived of its moisture being thereafter intermingled with the evaporated gasoline deprived to a carbureted air of substantially uniform composition,

A further object of the invention is the provision of a casing for carbureting the air whilst at the same time condensing the moisture therein contained, the refrigerating walls of which are constituted by the walls of the channels through which circa.- lates the gasoline intended for carbureting the said air having previously been deprived of its moisture, as above described, whereby without the addition of any moisture to the air it becomes possible to continuously and cheaply deprive of its moisture whilst warm- Applieation filed December 20, 1923, Serial No. 681,730, and in France September 3, 1923.

ing up the carburetor and consequently to enhance its output and to permit the use of heavier hydrocarbons.

lVith these and other objects in view as will incidentally appear hereinafter, the invention comprises the novel ar'angement,

construction and combination of parts that will now be described in detail with reference to the accompanying drawing and will be more particularly emphasized in the appended claims.

In the drawing 1-- Figure 1 is a vertical sectional View on the line .ez, Fig. 2, of the casing for refrigeratingand carbureting the air, which casing is embodied in the appliance hereinafter described.

Figure 2 is partly a vertical sectional view on the line w-w, Fig. 1, and partly an elevational view of the said casing.

Figure 3 is partly an elevational view and partly ,a sectional view of an appliance according to the invention comprising a drum unit for drawing in the fresh air and for e10 and a device for distributing the liquid fuel.

Figure 4 is a perspective view of a portion of the corrugated gauze on which the liquid fuel flows during the carbureting of the air which has previously been deprived of its moisture.

In all these figures similar parts are dcsignated by corresponding reference numerals.

According to the invention within a water vat 1 of rectangular cross-sectional shape carried horizontally by brackets 2 and supported by four vertical pillars 3 held in spaced relationship by a top frame a is ro tatably arranged a hollow drum unit 5 provided with a plurality of partitions 6 and pierced with longitudinal slots 7 adjacent said partitions. The carbureted air drawn in by the rotation of this drum unit is expelled into a laterally disposed receptacle 8 mounted concentrically to its axis and communicating through a gooseneck shaped pipe 9 with a suitable gasometer (not shown). The vat 1 is closed at its upper end by an outwardly bowed lid 10 the edge of which dips into a hydraulic seal 10. Said vat 1, drum unit 5 and lid 10 may be for the sake of clearness termed an aspirator, the function of which appears herein after. Between the said lid 10 and the circumferential wall of the rotatable drum unit 5 is arranged the casing unit B adapted for condensing the moisture contained in the incoming air and for carbureting the said air thus deprived of moisture.

The condensing or carbureting device or casing unit for the air is supported by two or more arch-shaped members 11 formed of tubes welded at their ends to the side edges of tapered troughs 12 carried horizontally by squares 13 depending from rings 14 secured to the pillars 3; other tubes 15 are arran ed transversely to the arch-shaped members '11. On the said tubes 11 and 15 is advantageously spread a large-meshed gauze 16 extending from the lower mouth of the carbureting channels E formed by the two sloping portions of the casing B (see Figure 1) to a position overhanging the troughs 12.

The lid 10, casing B, arch-shaped members 11 and troughs 12 are bodily connected and carried en bloc on the squares 13, the vat 1 being hermetically closed owing to the dipping of the lid edge into the hydraulic guard 10.

On the top frame 4 are carried the usual devices required in the type of appliance herein described, to wit; a gasometer, a windlass and an electric motor for rotating the drum unit. Neither of these devices forming the subject matter of the invention is shown and described. The fuel tank 18 is similarly carried on the said frame 4. All these devices are fixedly secured to this frame which therefore must be perfectly horizontal. In order to ensure the horizontality of the frame, top and bottom nuts- 17 are'provided on the top and lower ends By suitably screwing up orof the pillars. unscrewing the said nuts, it becomes possible to take'up any slant that might take place in the position of the vat 1 or frame 4.

The fuel'tank 18 is supported above the frame 4 by means of legs 19 and is provided with an overhead chamber 20 and opposite said chamber with a trough 21 positioned underneath the level of the bottom of the said tank. By this arrangement, it is possible fora scoop 22 provided at the extremity of an elongated pipe 23 pivotally mounted upon a pin 24 to intermittently dip the liquid fuel 6 out of the trough 21 and to pour it through the opposite nozzleshaped extremity 25 of the said pipe 23 into a funnel 26 communicating through a suit able trap 27 with the condensing and carbureting casing unit B. On the removable cover 28 of the said chamber 20 are secured an air tube 29 and an indicator 30 of the level of the liquid fuel.

The condensing and carbureting casing unit B represented separately in Figures 1 and 2 is of the general shape of a prism closed at its two ends 31 and having an upface 32 is welded a cylindrical pipe 36 whose.

outer part is screu threaded to receive an intake tube 37 (Fig. 3) through which the atmospheric air enters into the casing B. On the lower part of the said pipe 36 is welded a horizontal diaphragm 38 extendof the casing B. Above the said diaphragm 38 the pipe 36 is formed with side apertures 39. Finally the bottom part of the pipe forms a seat for a valve 40 provided with a shank 40 by means of which it is possible to adjust said valve with respect to its seat.

Within the outer casingB is arranged. an inner casing only extending over a part of its length. This inner casing whose walls are symmetrical relatively to the vertical axis 0 0 is limited at its lower end by the equally slanting walls 41 and at its upper end by mg over the greater portion of the length the equally slanting walls 42, the latter walls being continued at their upper end by the vertical longitudinal walls 43 which in turn are continued at their top end by the horizontal diaphragm 38. The vertical side walls 44 (see Fig. 2) of the said inner casing are disposed parallel to the end walls 31 of the outer casing B. Extending from the bottom 41, in parallelism to the axis 00 and between the walls 44 to a short distance above the diaphragm 38, are a pair of vertical partitions 45. These partitions 45 are IOU connected at their top ends'by an inverted V shaped roof 46; below the edge of this roof 46 each of the said partitions 45 is pierced with a row of holes 47. The slanting channels E limited by parallel walls 41 and 42- are opened on the side faces 35 of the outer casing B.

The arrangement of the inner casing withinthe outer casing B provides on both sides a vertical passage C which establishes a lateral communication between the upper compartment D and the lower compartment D. As indicated by the full line arrows in Figures 1 and 2, the atmospheric air which is drawn in owing to the rotation of the drum unit 5 enters through the apertures 39, passes through the compartments D and escaping through the lateral passages C reaches the compartments D whereafter it ascends through the central chimney F and passes through the holes 47 to become satu- The carburetor is constructed b weldin V e against the inner slanting walls 41 and 42 of the two channels E suitable lengths of corrugated gauze as shown in Figure t so that thus the flat portion 57 if the said gauze is welded to the said walls 41 and 42 and the corrugations 56 protrude beyond the said walls edgewise of the channels E. The said corrugations 56 are arranged at right angles to the plane of the mouth of the said channels. Another length of gauze lS is held taut between the lid 46 and the upper end of each channel E throughout the length of the inner casing.

On the external face of the lid lG is applied the pipe 27 adapted for feeding the liquid fuel into the carburetor. This pipe is perforated as at 52 (Fig. 2) all along the tangent contacting with the said lid 416' so as to permit the fuel that percolates through the said perforations to be disitributed on the gauze l8 and thence through the meshes of the other gauge 57. The drops of fuel that have not been evaporated and carried away by the air passing through the channels E fall on the said gauze portion 57, welded to the lower Wall 41 as above described, whereas the fuel drops that escape at the end of the said channels E continue to travel upon the large-meshed gauze 16 supported by the arch-shaped members 11 and are thus maintained in contact with the more or less carbureted air travelling to wards the drum 5. In the event of fuel drops reaching the lower end of the gauze 16, they are bound to fall into the troughs 12. The fuel generally follows the path a. indicated by the arrows (see Figs. 1 and 2) and by the arrows 6 (see Fig. The carbureted air travels in the direction indicated by the arrows a 9 (see Fig. and the resulting gas flows away along the path as indicated by the arrows g.

It will be understood that the outer air, by contacting the walls ll and 42 of the two channels E (cooled by the evaporation of the fuel) is caused to condense its entrained moisture against the said walls. This condensed moisture collects in the bottom portion 34 of the casing B, escapes through the holes 58 and drips into the water vat 1. The air thus having been deprived of its moisture ascends through the chimney F and is afterwards fit for becoming properly saturated with fuel by contacting with the gauzes 48 and 57.

From the foregoing it will be apparent that a carbureting apparatus is provided which may advantageously be used wherever, it may be necessary because of the high moisture content of the atmospheric air to deprive the air to be carbureted of its moisture before submitting same to the carburation proper, the condensing and carbureting operations being, as above stated, performed mostsimply and efficiently in the same apparatus.

Itmust be understood that the form of this invention herewith shown and described is to be taken as a preferred embodiment of the same and that various changes in the shape, size, number and more generally in the arrangement of the seve'al parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

hat we claim and desire to secure by Letters Patent is 1. A. carburetor of the character described, comprising a carbureting chamber having an air inlet and a car'bureted air outlet, and a casing for dehydrating the air supplied to the chamber, said casing en closing all of said chamber except the outlet.

2. A carburetor of the character described, comprising a casing having an air inlet, a chamber within said casing having opposite open ends extending through opposite walls of said casing, and means for supplying fuel to the inside walls of said chamber, said chamber having openings whereby the air in said casing may pass around said chamber, into said chamber through said openings, and out of said chamber through said open ends.

3. A carburetor of the character described, comprising a chamber with open ends and openings in its under side, means for supplying fuel to the inside walls of said chamber, and a casing enclosing all of said chamber except the open ends, and having an inlet 'for air whereby such air may pass around said chamber, into said chamber through said openings, over said fuel to become carbureted thereby, and out of said open ends.

4:. A carburetor of the character described, as claimed in claim 3, including means in said chamber for directing the fuel in a spread condition along the inside walls thereof whereby the walls become sufficiently cool to condense moisture in the air passing over the outside of the chamber, and whereby the spread fuel becomes preheated by such condensation.

5. A carburetor of the character described, as claimed in claim 3, including means in said chamber for directing the fuel in a spread condition along the inside walls thereof, said means conuprising corrugated gauze carried by the walls of the chamber.

6. A carburetor of the character described, as claimed in claim 3, including means in said chamber for directing the fuel in a spread condition along the inside walls there of, said means comprising corrugated gauze carried by the walls of the chamber, and a perforated fuel supply pipe positioned to supply separate streams of fuel to spaced portions of the gauze.

7. A carburetor of the character described, as claimed in claim 3. in which said chamber has a central inverted U-shaped portion and IOU slanting lateral portions, said means comprising corrugated gauze carried by the Walls of the slanting portions, gauze strips spanning the vertical parts of the U-shaped portion, and a perforated supply pipe in the horizontal part of the U-shaped portion, whereby fuel flows from the pipe across and through said gauze strips to the upper and lower walls of the slanting portions respectively and thence in a spread condition toward the open ends of the chamber.

8. A carburetor of the character described, as claimed in claim 3, in which said chamber has a centralinverted U-shaped portion, and in which said openings in the under side are in the lateral Walls of the space embraced by said U-shaped portion.

9. Ina carburetor of the character described, the combination With a chamber having an air inlet and a carbureted air outlet, and means for supplying fuel to the inside Walls of said chamber, of corrugated gauze carried by said Walls for spreading the fuel, said gauze comprising a single strip having spaced depending portions constituted by folded portions of said gauze.

10. A carbureter of the character described comprising a carbureting chamber, means for supplying fuel to said chamber, a casing partially enclosing said chamber and having a top air inlet, said chamber and casing having coincident outlet openings, an aspirator enclosing all of said casing except the air inlet, an arched support in said aspi rator for said casing, gauze carried by said support and troughs at opposite ends of said support whereby excess unvaporized fuel es" caping from said outlet openings will be guided by said gauze to said troughs.

In testimony whereof We have signed our names to this specification.

EDOUARD FAUCONNIER. ALBERT SIMPERE'

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