US1251623A - Carbureter. - Google Patents

Description

F. BAVEREY.

GARBURETER.

APPLICATION FILED FEB. 7. 1914.

1,251,623. Patented Ja11.1,1918.

2 SHEETS-SHEET l.

FIG 5 Arr v F. BAVEREY.

CARBURETER,

APPLICATION FILED FEB. r, m4.

Patented Jan. 1, 1918.

2 SHEETS-SHEET 2.

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UNITED STAT ii 1 E.

FRANQOIS BAVEREY, OF OULLINS, FRANCE, ASSIGNOR T0 SOCIE'IE DU CARBURATEUR ZENITH, 0F LYON, FRANCE, A CORPORATION OF FRANCE.

CARBUEETEB.

Specification of Letters Patent.

Patented Jan. 1, 1918.

Application filed February 7, 1914. Serial No. 817,277.

To all whom it may concern:

-Be it known that I, FRANgOrs BAvnRnY, a citizen of the French Republic, residing at Oullins, in France, have invented certain new and useful Improvements 'in Carbureters for Explosion-Motors, of which the following is a specification.

This invention relates to improvements in carbureters for explosion motors.

The invention provides means for opening in correlation a passage for fresh air and the nozzles of one or more carburetors having their orifices in this air passage and supplying an emulsion rich in fuel and automatically proportioned.

The devices adopted are arranged in such a manner that the orifices of the nozzles which feed the emulsion are located in the most throttled portion of the air passage so as to obtain the best atomization.

Each carbureter supplying the emulsion rich in fuel comprises a nozzle or a series of nozzles which in accordance with the suction, automatically supply the quantity of fuel necessary for insuring a good mixture.

For example, each carbureter comprises anordinary nozzle and a constant supply nozzle, that is to say, a nozzle delivering at the bottom of a well open'to the atmosphere.

It is also possible to proportionate the supply of emulsion to the supply of air for all positions of the member for throttling the gases by giving the air passage and the orifices for the passage of the emulsion crosssections of appropriate form.

A carburetor thusarranged will therefore supply suitable mixture for all apertures of the carbureter and all speeds of the engine.

The annexed drawings illustrate the invention.

Figures 1 and 2 illustrate two forms of construction of the apparatus which are shown diagrammatically.

Fig. 3 is a vertical section of a practica embodiment of the diagrammatic arrangement shown in Fig. 1.

Fig. 4: is a plan view of Fig. 3.

Fig. 5 is a section on line AA of Fig. 3.

Fi 6 is a detail sectional view showing certain of the parts.

In Fig. 1 of the drawings the reference character a designates an emulsion tube which extends into a rectangular member I) through which the air passes to the engine. The outlet of tube a is in the form of a narrow slot 6, whose length is equal to one of forth to increase or decrease the supply of air, and simultaneously increase and decrease the size of the opening@ through which theemulsion passes.

In Fig. 2 I have shown a similar device with a plurality of emulsion tubes a a and a which are provided with narrow outlets e, e and 6 respectively, which open into the air passage leading to the engine. Emulsion may be fed to these various tubes in any desired manner, but the arrangement is such that the area of the emulsion inlet will be simultaneously increased or decreased as the area of the air inlet is increased. or decreased.

In Figs. 3 to 5 I have shown one form of device, and in which 79 designates a casing having an air passage 6 therethrough which communicates with the intake of the engine. Extending into this casing from one end is an emulsion or a rich mixture tube t having a plurality of slots f through the wall thereof, and which slots extend approximately across the full width of the opening 6. This tube 2, is inserted through a cylindrical opening in one side wall of the casing 12 This tube t is preferably made in two parts, the outer portion being in the form of a Venturi or choke tube, and is inserted through the same opening through which the other portion of the tube 6 is inserted. The end of this opening is inclosed by means of a hollow cap 9 havmg openings through the side wall thereof which are provided with a screen 9 and through which air is admitted to the Ve'nturi tube and the tube t. j is a jet of ordinary type and is fed from the constant level chamber in the ordinary manner, the tip z of said jet is calibrated to accurately measure the fuel. This jet is inserted in passage Z which opens into tube t, this passage Z receiving gasolene from well 0, open to the atmosphere in the well known manner. The well 0 is fed through the opening it and communicates with passage Z by means of chamber is.

Slidably mounted across the air passage 12 in the casing p is a throttle valve 39 which is in the form of a piston, and which telescopically engages the tube 25, the arrangement being such that when the valve 10 is moved in one direction it will reduce the size of the air opening through the casing and simultaneously reduce the size of the openings 7 leading from the emulsion tube t, and when moved in the opposite direction it will simultaneously increase the area of the air inlet and the openings from the emulsion tube. This throttle valve p is provided with a valve stem p which extends through a head connected to the casing p In order to feed a mixture to the air channel for slow speed running, I have provided What I claim as my invention and desire to secure by Letters Patent of the United States is 1. In a carbureter, the combination of an air intake arranged to supply a fuel mixture to the engine, a jet having an emulsion passage leadlng therefrom into the air intake, said jet opening below the level of the liquid in the constant level reservoir into a well communicating with theatmosphere, and a throttle arranged to simultaneously vary the area of the air intake and the area of the opening from the emulsion passage into said intake.

2. In a carbureter, the combination of an air intake arranged to supply a fuel mixture to the engine, a jet having an emulsion passage leading therefrom into the air intake, said jet opening below the level of the liquid in the constant level reservoir into a well communicating with the atmosphere, and a single throttle member arranged to simultaneously vary the area of the air intake and the area of the opening from the emulsion passage into said intake.

3. In a carbureter, the combination of a emulsion passage to the said intake, sub- 7 stantially as described.

4. In a carbureter, an air conduit, a fuel conduit discharging thereinto, said fuel conduit being provided with two sources of fuel supply, one providing a supply variable per unit of time, and one constant per unit of time, and a throttle arranged to simultaneously vary the area of the air conduit and the area of the opening from the fuel conduit thereinto.

5. In a carbureter, an air conduit a fuel conduit subject to the influence of air passing through the air conduit, the fuel conduit being provided with a suction-controlled fuel feed, and another fuel feed giving a fuel supply increasing at a less rate than the air supply, and a throttle arranged to simultaneously vary the area of the air conduit and the area of the opening from the fuel conduit thereinto.

6. In a carbureter, the combination of an air intake arranged to supply a fuel mixture to the engine, an emulsion passage leading into the air intake, an air inlet for the emulsion passage, a suction-com trolled fuel feed supply, and a fuel feed giving a fuel supply increasing at a less rate than the air supply, both said fuel feeds entering the emulsion passage, and a throttle arranged to simultaneously vary the area of the air intake and the area of the opening from the emulsion passage.

7. A carbureter, comprising a casing, an air intake extending through said casing, an emulsion tube extending into said air intake and having an elongated opening therethrough, means for feeding both air and oil to said tube, a reciprocating throttle valve mounted within said casing and arranged to slide across the air intake opening and the opening from the emulsion tube, to simultaneously increase or decrease the feed of air and emulsion.

8. A carbureter, comprising a casing having an air passage therethrough, an emulsion tube extending through the wall of said easing into the air passage, means for feeding air to said emulsion tube, means for feeding oil to said emulsion tube, said emulsion tube having an elongated slot menses through its walls, a piston 'valve mounted within the casing and surrounding the emulsion tube, said piston valve being arranged to simultaneously close the slot from the emulsion tube and the air passage, and a piston rod connected to said piston.

In witness whereof I have signed this speclfication in the presence of two witnesses.

FRANQOIS BAVEREY. Witnesses GASTON JmUNIAUo, MARIUS HERMAZ.

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