US1327703A - Carbureter - Google Patents

Description

C. H. CLAUDEL.`

CARBURETER.

APPL-ICATIONTILED JAN.26, 1'914- -RENE'WED OCT. 21, 1919.

1,327,703. y A Patented Jan.13,1920.

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UNITED sTATEs PATENT oEEroE.

CHARLES HENRI CLAUDEL, vOF LEVALLOIS-PERRET, FRANCE.

CAEBUEETER.

Speciicationof Letters Patent. Patted J an.. 13, 1920.

Application led January 26, 1914, Serial No.v814,403. Renewed October 21, 1919'. Serial No. 832,330.

To all whom t may Concern.'

Be it known that l, CHARLES HENRI CLAUDEL, a citizen of the Republic of France, residing at Levallois-Perret,- Seine, France, have invented new and useful Improvements in Carbureters, of which the following is a specification.

This invention relates to carbureters lfor use in internal :combustion engines, and more particularly to carbureters of the kind in which the control of the inlet for the air and the outlet for the combustible mixture is effected by a single controlling member which simultaneously governs the relative value of the cross-sectional areas of these passages in the carbureter in accordance with the position to which the controlling,

member is adjusted. v

The invention has for its object to improve the operation of carbureters of this type and more particularly those comprising a regulating valve adapted to be oscillatedl or rotatably displaced for the purpose of governing the supply of combustiblegas to the engine. The invention is further particularly adapted to tion with carbureters of the Well-known Claudel type in lwhich the oscillating regulating valve performs the double function of controlling the admission of combustible mixture to the engine, and of controlling the amount of air admitted to the carbu- -reter.

In the accompanying drawings the invention is illustrated as embodied by Way of lexample in various improved constructions of carbureter of the Claudel typeabove referred to.

Figures l, 2 and 3 are diagrammatic views in sectional side elevation, sectional front elevation and plan respectively of a regulating valve of a carbureter embodying one form of the invention; Fig. 4 being a view similar to Fig. 2, but illustrating a modified construction.

Figs. 5 .and 6 illustrate theinvention as applied to a recent type of Claudely carbureter, Fig. 5 being a view in sectional side' elevation of the mixing chamber ofy the carbureter and Fig. 6 a sectional plan view on the line 6-6 of Fig. 5.

. Referring now to the drawings it will be seen from Figs. l, 2 and 3, that the carbureter comprises in common with the earlier types of Claudel carbureter a rotary conbe applied in connecf trolling valve b and a spraying nozzle e' projecting within-an opening in the controlling valve." The principal feature of the present invention consists-,yin the.A provision of two partitions d arranged parallel to the axis of the opening aand onzieacli. side of the spraying nozzle c in suoli;l Amana ner as to form an intermediate of the chamber nication with the space D, passages e el being provided communicating with thel10l` low partitions in all or certain positions of the regulating valve l), the passages e e1 serving for the supply of cold or heated air tothe interior of the partitions, the air passing through the perforated WallsY of the partitions into the space D from which it escapes with the rest of the combustible mixture. The imperforateouter Wall of the hollow partition is designated by the letter d and the internal imperforat'e Wall of the hollow partition is designated by the letter d1.

It will be understood that these partitions are capable of being embodied in any type of carbureter comprising a Carburation chamber interposed between the inlet and outlet of the ca1bureter,'this Carburation chamber being located either within an oscillating regulating valve of the Claudel type or within any other form of regulating valve, although this feature 1s particularly useful in connection with oscillating regulating valves having an opening therein of cylindrical, conical or other form Within which the spraying nozzle is located.

Referring now to Figs. 5 and 6, the carbureter is illustrated as having an oscillating` regulating valve b With anA opening therein in the form of a truncated cone, the spraying 4nozzle being of the Well-known Claudel type. The conical opening a of the regulating valve b is so arranged that its base or larger end is adjacent t0 the outlet of the carbureter leading to the induction, pipe of the engine for the purpose of facilitating the'fiow of the gaseous mixture.

The partitions d incloseas in the construetion labove described, a restricted carburation chamber D surrounding the upper por-v tion of the spraying nozzle 0. In Fig. 5 the top of the partition d isA broken away. The

spraying nozzle itself is in this. case of improved construction being provided wlth j inlet holes for air leading into the annular cent to the air inlet of the lcarbureter where the variation of pressure is very small, the other groii'p of inlets, viz., those indicated at 2, being located farther within the carbu'reter and 'therefore' subjected to variations in pressure which are considerably greater than is. the case at the inlets 1.

As the regulating valve b of the carbur'eter is opened and in proportion to the amount of such opening and the consequent increase in speed 'of the engine, the, drop of pressure at the inlets i2' will increase and will counterbalance the drop of pressure occurring at the outlet orifice z'.

This action will be more pronounced if, as in the construction illustrated in. Fig. the conical form of the opening in the regu- -lating valve is ycontinued throughout the inlet to a suiiicient 'extent to exert an infiuence upon the inlet orifices 2.

The f lls of pressure occurring at the oriices il, 2, and at the orifice c', do not follow the same curve of variation vand it is therefore possible to obtain a proper adjustment of the carburation under different running conditions of the -engine and more particularly to 'obtain an automatic reduction in the richness of the `gaseous mixture at high speeds. l

It will be understood that the features of improvement in the spraying nozzle above described which constitutes a feature of the present invention can be applied to a carbureter having a regulating valve of an v suitable type and may moreover be em-j ployed without necessarily utilizing the partitions d in the Carburation chamber above`v referred to. v

The improved form of sprayin nozzle may also be employed inv connection with carbureters having various relativaarrangements of the nozzle'and regulating valves other than those above' "greferred to, the

portion ofthe body of the carbureter tween the spraying nozzle being notnecessarily located within the interior of the regulating valve,

`Vbut -being otherwise arran ed if desired.

The improved spraying nozz e is in fact generally applicable to all earbureters. in which one or more' orifices are provided for discharging the liquid fuel into a current of air deliveredy to the main' delivery pipe of the carbureter, the withdrawal of air from the suction column of the carbureter being partly or wholly due to the' variations in pressure resulting from the suction of the en e.

he invention is evidently not limited to theimproved constructions above described byway of example, which merely illustrate various arrangements embodying one or more ,features of the invention and the latter is accordingly only to 'be regarded as limited.. to the extent indicated by the appended claims.

I` claim as my invention 1'. The combination in a carbureter'of a rotatable valve having an opening therein constituting a mixing chamber, la fuel injection device extending into and located within said 4opening in said valve and means carried by the valve for preventing the expansion of the air in the mixing chamber in certain positions of the valve.

2. The combination in a carbureter of a rotatable member having an opening con` stituting a mixingv chamber, said valve simultaneouslycontrolling the supply of air to and the outlet of combustible mixture from the mixing chamber, a fuel injection device located Within the mixing chamber, ,a partition located' on each side of the nozzle, said partitions being within said valve and extending through said mixing chamber, and means for confining the passage of air bepartitions in certain positions ofy the valve.

3. The combination in a carbureter of a rotatable plug melnber Controlling the supply of combustible Huid to the motor, a mixing chamber located within the interior of said rotatable member', a fuel injection nozzle projecting within said rotatable member, partitioning devices located on either side of the fuel injection nozzle and rotatable with said plug cock, means for 'insuring the passage of air between 'said artitioningdevices and in the region of the uel injection nozzle and an orifice for supplying a combustible mixture from a oint in the carbureter distant from said uel injection'nozzle in accordance with the variation in the pressure at different points. I j. 4. The-combination 1n a carbureter of a regulating valve having a passage therethrough withtlgwhich the fuel injection device is located-,a plurality of partitions rota-A table with said valve-dividing said passage into a correspondinggnumber of compart- CII :,anmca ments, one of which incloses said spraying nozzle in all positions of the valve and means for limiting the air passing throughv said valve to this compartment for certain positions of the regulating valve.

5. Thek combination in a carbureter of a of combustible mixture to traverse a sinuous' path prior to its ultimate delivery.

6. The combination in a carbureter of a regulating valve having a passage therein constituting a mixing chamber, a fuel inj ection device, means for permitting the flow of air through said passage past said injection device, means carried by Said valve for limiting said flow to a region closely adjacent to said injection device for certain positions of said valve, said regulating valve having passages outside of said mixing chamber for admitting a` larger iiow of air 1through the valveifor certainpositions of the valve. -v

7. The combination in `a carbureter of a rotary plug cock having a passage therein constituting a mixing c a stituted by the opposite faces ofsaid valve for controlling the inlet of air and the` outlet of combustible mixture from said chamber, a fuel injection device projecting. within s aid chamber and means carried by' said plug cock vfor limiting the flow of air through said chamber to a region closely adjacent to said fuel injection device for certain positions of said valve.

8. rflic combination in a carbureter of a rotary plug cock having a transverse passage therein constituting a mixing chamber, a-

fuel injection device projectingnwithin said chamber, transverse partitionsA surrounding said fuel injection device and arranged at right angles to the axis of rotation of 'said cock to permit rotation of said cock without interfering with said injection device.

9. The combination in a carbureter of a i rotatable controlling valve, a fuel injection nozzle located in a passage formed in the interior of said valve, means for restricting the volume of said mixiiig chamber in certain positions of the valve by reducing the Width of said chamber in a direction parallel to the axis of rotation of said valve, a separate passage for supplying combustible mix-` ture to the interior of the mixing chamber,

mber, means cony ing chamber, a

. heated means for causingthe air employed in generating said combustible mixture to follow a.

-sinuous path prior to its ultimate delivery and means for varying the supply of combustible mixture from said second delivery nozzle in accordance with the variation of the pressures within the interior of the carbureter.

10. The combination in a carbureter of a reguiating valve, a fuel injection device, means for dividin the interior of said valve into a pluralityofg. compartments within one of which said injection device projects and means for varying the temperature of the interior of said compartment. v

11. The combination in a carbureter of a rotatable plug cock controlling the supply of air to and the outlet of combustible mixture from a mixingchamber located Within the interior of said plug cock, means for dividing thel interior of said mixing chamber into a plurality of compartments and means for rendering the temperature of one of said compartments different from the remainder.

12. The combination in a carbureter of a regulating valve having an opening therein constituting a mixing chamber, a fuel injection device, partitions dividing said chamber into a plurality of compartments Within one of which saidinjection device is located and means constituted by said partitions for varying the temperature of said mixing chamber.

13. The combination in a carbureter of a' rotatable plug cock, a chamber Within the interior of said plug cock constituting a mixuel injection nozzle projecting within said mixing chamber, means for dividing the mixing chamber into a number of compartments, a number of concentrically arranged members surrounding the injection nozzle and means permittingl the passageof air between said concentrically arranged members for generating a separate supply of combustible mixture.

14. The combination in a carbureter of a rotatable plug cock having an opening therein constituting a mixing chamber, a plurality of hollow partitions separating said chamber into a number of compartments, a

fuel injection device located within one of said compartments and means for supplying fluid to the interior of said hollow partitions. y

15. The combination in a carbureter of a main controlling valve, a fuel injection de' vice having a main outlet adapted to supj ply a combustible liquid in substantially uniform quantities, an auxiliary outlet adapted to supply a combustible mixture in variable quantities, means for causing the combustible fluid supplied from the auxiliary source to traverse a sinuous path prior to its delivery to the carbureter and means for automatically varying the amount of fluid thus supplied in accordance with the variation in the pressures at different points in the carburetor.

16. The combination in a carbureter of a fuel injection device having a main outlet for combustible liquid and an additional outlet for combustible fluid, means for adniitting air to said injection device located at a point at which variations in pressure due to the suction of the engine are a minimum and means for admitting air to the linjection device at a point at which the variations in pressure are greater than at the aforementioned point.

y 17. The combination in a carbureter, of a cylindrically formed rotatable plug which is provided with a through diametrical port,

spaced-apart lates for dividing said through port into two or more compartments, a Wall for limiting the amount of the flow of fluid through some one of said compartments when the plug is in a predetermined or certain position, means for limiting the rotary movement of said plug and a fuel injection device having a plurality of intake openings and located Within the lastmentioned compartment of said rotatable plug.

In testimony whereof I have 'signed my name to this specification in the presence of two subscribing witnesses.

CHARLES HENRI CLAUDEL.

Witnesses:

GEORGES PRo'l'rE, HANsoN C, COXE.

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