US864111A - Carbureter. - Google Patents

Description

No. 864,111. PATENTBD Atrqlzo, 1907.

.I F. W. SIGKLES.

' CARBURETER.

APPLICATION FILED NOV. 9, 1906.

UNITED STATES PATENT onnron. v

FRANK W.- SIOKLES, OF HARTFORD, CONNECTIOUT.

CABBURETER.

most commonly employed in conjunction with gaso lene engines and has for its object to provide improvements in the apparatus to result in a better operation of the carburetor and a largely increased reliability and efficiency of the gas engine with which it may be combiried. a

thoroughly commingled in said chamber, but will be introduced into the engine cylinders,'not only by .the-

suction action of the pistons, but also by thev positive forcing action of the rotary fan, assuring a full cylinder ofgas.

The carburetor also comprises improved means for the continuous driving of the fan; and the invention furthermore comprises improved means for increasing and diminishing the quantities of air which may be drawn into the carburetor and delivered therefrom quantitively pmportionate, as desired relatively to the quantity of the liquid fuel permitted to be delivered.

The improved carburetor is hereinafter fully described in connection with the accompanying drawings and set forth in the claims.

In the drawings,-Figuie 1 is a central vertical sectional view of the carburetor. Fig. 2 is a horizontal section on line 2-2, Fig. l. The line 1-1, on Fig. 2 indicates the plane of section of Fig. 1. Fig. 3 is a horizontal sectional view on line 33, Fig. 1., Fig. 4 being a horizontal section of parts on the lower plane indicated by line 44, Fig. 1. Fig. 5 is a perspective view showing conjointly operating valves or dampers for regulating the air admission into and the vapor egress from the carburetor.

Similar characters of reference indicate correspond: ing parts in all of the views.

1n the drawings,-A represents an annular gasolene receptacle, oi which a represents the float chamber and B the float,C representingthe liquid fuel inlet con -trulled by a weighted valve b subject to actuation through the lever b by the float whereby a practically uniform quantity of gasolenemay be maintained in the Specification of Letters Patent. Application filed November 9,1906. Serial No. 42,7

Patented Aug. 20, 1907.

float chamber up to the level, for instance represented by the line y-y. I

D represents a comparatively large conduit for air, thc'same comprising a quarter bend coupling (1, the upwardly extended portion of which is fitted within the lower portion of the central opening in the annular float receptacle A,the air coming through this conduit D being, accordingly as preferred, atmospheric air or heated air supplied from a muffler appurtenant to the gasol ene engine in conjunction with which the carbu ,reter is used.

f represents a tube vertically and centrally disposed within the central opening inthe gasolene receptacle, 'the same being open at its top and bottom; and centrally within and separated from the wall of the tube f is the gssolene nozzle pipe E havirigjhe jet opening at its upper end, in the axis of the carburetor and slightly above the liquid fuel level. 1

g represents a gasolene. way leading from the bottom of the receptacle A to connection with the lowered end ofthe nozzle pipe E; and h represents a needle valve for regulating the amount of the liquid fuelwhich may be delivered in conjunction with a comparatively large or small proportion of air through the carburetor. I F represents a hollow' casting or casing of cylindrical fbrm having a circular fan chamber '41 therein, provided a depending circular internally threaded flange j sdrew engaged on the upper portion ofthe gasolene receptacle and having a central circular opening la, the inner wall of which is closely fitted about the inner circular wall k'-"of the receptacle, these-connected or engaged parts making the upper closure for the receptacle.

G represents a tangentially arranged conduit or holsubstantially filling the said' circular fan chamber ii The approximately radiating blades of the fan are curved from their inner to their outer end, as shown in Fig. 2, and are carried between upper and lower plates m, m, the lower 'plate being constructed with a circular aperture of about the same diameter as the opening within the gasolenetank; and the blades are recessed at their inner and lower portions, as represented at n, to

provide a gasolene and air entrance space which is in communication with the radiating spaces between the blades and upwardly into or, towards which'the circular vertical air passages through the carbureter and nozzle pipe are directed.

The fan case F is internally screw'threaded near the upper edge of its surrounding vertical wall and receives the engagement therewithin of an edgewise threaded cap or cover 0, the same havinga central vertical hel i l l l I i y therethrough for one bearing of the vertical and up wardly extending fan shaft or arbor, the upper journal of which hasbearing in a journal hole formed in the horizontal portion 11 of a bracket M which is supported on the cover of the fan case. I

The fan shaft is provided with a friction wheel N, the same comprisingta disk of leather or other appropriate frictional material q clamped betweenmetallic sections q and q, the leather disk being ofslightly greater diameter than the metallic section. The said friction wheel is vertically adjustable on the shaft Land has the pulley 0 for receiving the driving engagement there- 'with'of a band 12, a continuous progressive movement of which is to be imparted from any driven part of the gasolene engine or other source of power or medium of transmission. The bracket is shown as having a circular cavity or chambered enlargement rivvithin its side towards the diski n which is nested a helical springxu.

which reacts against a washer to between which and an other washer w are a plurality of. anti-friction balls, one of said washers'being loose relatively to the shaft while the other is aflixed'to, andj'otates as one with,

the shaft. The shaft having a degree of end play in its hearing the disk thereon is kept in yielding contact against the edge of the friction wheel on the fan shaft to drive the latter cbmparatively fast or slow accordingly as the wheel is positioned farther or nearerto the center ofthe-disk'. jv A circular damper plate or valve Q is movably mounted axially vertically the tangentially arranged conduit G leading from the fan chamber, the same being carried by a vertical stem' or spindle :c which is journaled through the upper and lower walls of the said conduit. The stem has at its upper end a. lever arm :0 receiving connection therewith of an actuating rod 1,. the same understood as extended 'i any conveniently accessible location; and the said stem has at its lower end another lever arm The annular space between the air tube f which isv open at its top and bottom, and the innercircular wall of the annular gasolene receptacle is provided with an annular plate R having a series of apertures e in circular arrangement; and fitted about the lower portion of the air tube f and sustained by the lower end flange 1 thereof is a partially rotatable register plate 'l having a circular series of holes adapted to register with, or to be ofiset from, the hole 0 of the plate R. The register plate has a lever arm T" pivoted to which is 'one end of a link a, the other end having a slot z in which plays with a lost motion a stud a projected from the lower lever arm x of the dampcrvalve stem. I

Assuming that the damporvalvc is completely closed the movements of the stem :2: {or so closing it will also close the register valve; and then assuming it is desired to start the engine, a rotational movement of the stem in small degree will cause a partial opening of the damper valve so that, initially, a rich charge (the proportion of air being only such as will pass upwardly through the tube f) may be delivered into the cylinder, and their when full free charges of the vapor are de sired to be delivered into the cylinder after the engine is well under Way, a suitably proportionate amount of air being introduced with thegasolene, the further movement'ofthe valve stem through its operating connection to nearly or fully openthe damper valve will correspondingly nearly or fully open the air register or valve. By the employment of a fan above and as a part of timate relations within the dome'shaped space at the lower central portion of the fan, as acquired by the recessed formations of the fan blades, as shown at n, will become thoroughly mixed and driven forcibly into and through the conduit G and thence into the engine cylinder or cylinders under the-impetus of the fan additional to the suction action in the cylinder or cylinders by inder of gas with the advantages consequent thereto. p The driving means for the rotary fan hcreillustrated and described, is one which precludes breakage of the parts and driving connections in cases of back firing. It will further be appreciated that under some running closed and a body of compressed air is confined in the fan 'case, a slipping in the frictional driving devices will be possible to prevent injurious results within the carburetor.

be readily bodily disconnected from the remainder of 4 the carburetor as is found to be very desirable at times for adjustment, repairing, or replacement of parts.

This invention has been embodied in carburetors difierent from theonc here shown as to matters of detail construction, with corresponding advantageous results following the employment of the carburetor designed as constructed specifically as hereshown; and I may, therefore, depart from the precise structural form of parts and details which are here illustrated without departing from my actual invention and without sacrificing the advantages thereof.

I claim:-. I

1. A carburetor comprising an annular axially vertical receptacle having central upwardly open passage therethrough' and having a tube vertically and centrally dlsposed. within said passage open at top and bottom, a nozzle tube centrally within, and separated from the walls of, said tubefand a valve-provided way leading from the annular receptacle to said nozzle tube, a cylindrical enlarged casing provided above the receptacle and to the center of which said central opening in the receptacle commuulcates, and having a tangentiallylocated condult leading therefrom towards the cylinder, an axially vertical rotary Jan in said chamber, and means (or rotating the (up.

2. A carburetor comprising :1. central vertically operturcd annular receptacle, a cylindrlcal caslng thereahove into the chamber of which the center opening through the receptacle loads and having a conduit lcadlng.therc[rom for connection with a gas engine cylinder, u nozzle pipe wlthln sald control opening directed upwardly towards said chamber, and a valv conduit connecting the receptacle with srild nozzle pip an axially vertical fan in said chamber having the blades thereof reccssedat their inner the carburetor, the liquid fuel and air brought into inconditions, and when the throttle or damper valve is the engine piston or pistons, assuring always a full cyl- The fan case together with the fan driving means may and lower portions. to provide a gasolcnc'and alr entrance a wheel vertically adjustable thereon, a friction disk in sea-1 1i wardly towards said chamber, a valved conduit connecting the receptacle with said nozzle pipe, a rotary tan in said chamber having a central upwardly extended shaft provided with'a wheel, a friction disk in facewise contact against the edge of said wheel, a spring for forcing the disk yieldingly to such contact and means for rotating the iriction disk.

4. A carburetor, comprising a central, vertically apertured annular receptacle, a cylindrical casing thereabove into the chamber of which thecentral opening through the receptacle leads and having a conduit leading therefrom, and a nozzle pipewithin saidcentral opening and directed into said chamber, a valved conduit connecting the recep tacle with said nozzle pipe, a rotary fan in said chamber having a central upwardly extending shaft provided with facewise contact against the edge of said wheel, a spring for forcing the disk yieldinglyto such contact, and means for rotating the friction disk.

5. A carburetor comprising an annular receptacle, a cylindrical fan casing .thereabove into the chamber of which the central opening through the receptacle leads an'd having a conduit leading therefrom for connection with a gas engine cylinder, a nozzle pipe within said central opening and directed upwardly towards said chamber, a valved conduit connecting the receptacle with said nozzle pipe, a horizontal apertured wall across the opening through the receptacle, an apertured register plate movably fitted to open and close the apertures in said wall, a valve or damper in said conduit leading from the said fan-chamber, having an actuating stem, a connection between the said stem and said register plate, whereby the latter may be operated by said stem, 21 bladed tan in said fan chamber and means for rotating it.

6. A carburcter comprising an annular receptacle hav ing the central opening passage thereth rough verticalfa nozzle tube centrally within the vertical opening through said receptacle a valve-provided conduit leading from the receptacle to the lower end or said nozzle tube, and the said opening through the receptacle havinga'lo vver wall provided with a circularly arranged series of apertures, and having an apertured register plate movable in relation thereto and provided with a lever arm, a cylindrical casing provided above the receptacle and to the center of which said central opening of the receptacle communicates, and

, having a tangentially located conduit leading therefrom for connection with a gas engine cylinder, a valve or damper in saidconduit having an operating stem and means for operating said stem, 0. lost motion connection between the-said stem and the register lever-arm, whereby said alve may have extents of opening, and closing movements before the register will have opening and closing move- 'ments imparted thereto, an axially. vertical rotary fan in said chamber, and means for rotating the fan.

7. A carburetor comprising an annular gasolene receptacle, the central opening therethrough being vertical and having a tube verticallyand centrally disposed within said opening, open at top and bottom,

7 within and separated from the wall or said receptacle, and a valve provided conduit leading from the gasolenereceptw cle to the lower end of said nozzle tube, an enlarged cylin-- drical casing provided above the receptacle and to the center'of'v vhich said central opening in the receptacle, and the tube within said opening, communicate, having a tangentially located conduit leading therefrom for connection with an engine cylinder, an axially vertical rotary fan in said chamber, and means for rotating it, an apertured wall across the space between the boundary of said receptacle opening and the tube therewithin, an apertured register plate immovably fitted against the said apertured wall and having a lever arm a damper in said conduit leading tromthe tan"chamber, and having a verticaliy operating stem provided at one portion with a lever, through means of which it is operated, and having at the other portion thereof a lever arm, and a link pivoted to the leveriarm of said register plate having a stud and slot connection with,

the second named lever arm of the said damper stem.

8. A carbureter comprising 'a'icen'tral vertically aperturned annular receptacle, a cylindrlcal'ian casing thereabove into the chamber of which the central opening through the receptacle leads and having a conduit, leading therefrom, for connection with an engine cylinder, a nozzle pipewithln said'central receptacle opening directed upwardly towards the said chamber, and a valved conduit connecting the receptacle with said nozzle pipe, a bracket supported on said fan casing having at its upper part a horizontally extended arm, a rotary fan in said chamber having a central shaft vertically extended and journaled through the top of said fan casing andntnisaid horizontal arm of the bracket and provided with a wheel, a shaft journaled horizontally through an-intermediate part of said bracket, having on its outer end a driving pulley,

Signed by me at Hartford, Connecticut in presence of two subscribing witnesses.

Witnesses:

:JOSEPH L. Baanonn,

ElMcEvnNs. w

a nozzle tube centrally and having on its inner, end a friction disk in Iacewise bearing FRANK W. SICKLES.

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