US941406A - Carbureter. - Google Patents

Description

J. E.' booPBR.-

v GARBUEBTER; APPLEIUATION IILD HAR. 27, 190,8.

Patented Nov?. 3o, 1909.

fla-1 J. Hfk. COOPER.

` GARBUEETBR. APPLICATION FILED MAR. 27, 1908..

Patented Nov. 30, 1909.

EL zo i .cao/21er.

l aULIUs H. COOPER, F ROCHESTER, NEW YORK.

CARBRETER.

SMLQU.

Specification of Letters Patent.4 Patented NOV. 30,. 15909?.

Application filed March 27, 1908.k Serial N0. 423,697.

To all whom 'it may concern:

Be it known that I, Juntos H. Coornn, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented` certain new and useful improvements in Carbureters', of which the following a specificasor `having This invention relates to earbureters, and moreparticularly to convertible mechanically or automatically governed carbureters, and has for its object to provide such a device w-hich may be used for volatilizing oils of various kinds.

Another object is to provide a carburetor by the use of which both the supply of-oil and of air may be heated.

Another object is to provide a carbureter arranged to admit oil and air in regulated proportions and variable quantities.

Another object is to provide a means for diffusing the. oil over a large heated surface to facilitate volatilization thereof.

Another object is to provide ameans for directing incoming air :forcibly against the supply of oil.

Another object is to provide a novel means for heating the supply of oil and air coincidently with their being brought into mutual contact.

` Another object is to provide a novel and desirable throttling means.

Another object is to provide a novel and desirable automatic governing means.

Another object is to provide a carburetor of this type'in which' the use of a float feed fuel `governor may be dispensed with.

Another object is to provide such an article of simple structure which may-be easily taken apart.

Another object is to provide a carbureterl an adjusting means of extreme simplicity.

Another object is lto provide such an article which maybe manufactured at low cost.

Other objects and advantages will be apparent from the following description, and it will be understood thatA changes in the specic structure. shown and described may be made within the scope of the claims, and

' that any suitable materials ,may be used Without departing from the'spirit of the invention.

In the drawings forming a portion of this specification, and in which like characters of reference ,indicate similar parte in the several Views, Figure l is a top plan View of the '.arbureter, Fig. 2 is a side view of the carbxn'eter, Fig. 2% is a cross sectional view laterally of Fig. 2, through the center of the mixing chamber, Fig. 1 is abottom view ot the carbureter., Fig. is a horizontal sectional view on the line 5 of Fig. il, Fig, is a detail of the mixture controlling means, Fig. 7 is a similar vie\Y at lright angles to Fig. G.

Referring to the drawings, there is shown a carbureter comprising a 'chamber A to which there is secured a 'throttle section B. The chamber A Acomprises a cylindrical chamber having a *all portion 10 the lower outer end portion being threaded as at 11, and haring a base portion 13 engaged there on, as shown; The base portion comprises a floor portion 1t having an upwardly extending flange 15 therearound threaded on its inner face and engaged on the threaded portion 11 of the wall 10. A cone shap 'd projection 16 located concentrically the-floor l-l, its base being spaced in 'a1-diy from the wal] 1t). A fuel tube 17 extends up 'ardly conce` `'wally through the tloor portion 14 and es* .nmicates with an opening 18 at the apex of the cone 16, the lower end of the tube 17 projecting outwardly from the. tioor Hand being threaded for engagement with fuel supply connections'in lthe usual manner. The junction of the cone 16 with the floor 1st forms a chamber 20 as shown. 'lwo i openings Q1 are formed 1n .the Hoor 14 inwardly of the base of the cone 16 communicating with the chamber 20, and

have interiorly threaded bosses 22 outwardly thereof arranged for connection with a heating means of suitable type.-

A series of perforations are formed concentrieally ofthe base 14 between the base of the cone 16 and the wall 10 for thepassage of'air inwardly therethrough.. The

Walls 10 are turned inwardly at their upper end, and form a supportportion 25 haring a clreular opemng 26 therethrough arranged.

`to receivea Valve controlling mechanism subsequently to be descrlbed.

piston 30 1s located within the chamber and A skeleton comprises a conical portion arranged to engage over the cone 16, having a vertical flange 31 extending upwardly fromfits base for close sliding'engagement against. the

Wall 10, and' havingv its upper end open and flared outwardly as shown 4at 32. An ear 33 is carried adjacent to the upper edge of i the flared portion 32, provided with an opening 34 arranged for pivotal-connection with the valve operating mechanism C 'subsequently to be described. q

The valve operating mechanism C is disposed -within the opening 26 and comprises a retaining member 35 formed in the shape of a short cylinder' disposed revolubly in the opening 26 and having a laterally extending flange 37 secured upon the portion 2G by means of screws 38. A pendent ful- .crui'n arm 40 is carried by the retaining member'` 35 extending longitudinally below y the cylinder 36 and in spaced relation therewith. An oblongopening 41 is formed at the base of the arm 40 and has slidably engaged therein a threaded pin 42 carried pivoscillated. A revoluble bushing 48 is engaged within the cylinder 35, having a iiange at its lower end engaging against the base of the cylinder 35 and rovided with an inwardly projecting portion 4t) at its upper end. The opening 50' through the u )er end of tlie-l'iusliiiwr 48 is threaded andA has engaged therein a screw '5l extending through a retaining washer 5l disposed over the bushing 48.

is formed in the side of the bushing 4S and has slidably engaged therein a pin 53 earried by a needle member 54 engaged slidably in the bushing 48. The needle member 54 extends downwardly through the chamber A, the lower 'end ot' the needle being pointed and seated in the opening 1S at the apexvof the cone 1G. A helical spring 55 is engaged between the portion 4t) of the bushing 48 and the top of the needle 54, to.

hold the needle at the lower limit' ol. its

. movement. A pin 5G extends laterally t'roni the needle adjacent to the lever 43, andI is engaged in the opening 44 to cause oscillation of the lever 43 when the needle is moved verticali An o "ratiiio lever 57 is secured to the bushing48 above the cylinder 3G, aud is held adjustably thereon by means ot' a set. screw 58..-

It will be seen that upon operation ot' the lever 57 the bushing 48 will be rotated, and

` the slot 52 will'eiwaoe against the )in 53 to move the needle 54 vertically, the pin 5t? at the same time engaging' with the lever ltil. It will thus be seen that-the skeleton piston 30 will be raised fromA engagement against An inclined slot 52' `having a vertical extensioi'i at its lower end the cone 16 at the same time that the point or' the needle 54 is raised in the opening 1.8. The ratio between the movement of the piston 30 and the needle 54 may be governedA byineans of the adjustment of the 42 in the slot 4l of the arm 40.

A lcircular outlet opening GO is formed in the upper portion of the Wall 10, being provided with a valve seat 6l at its outer end and having a circular boss 62 extending therearound to Support a throttle mechanism to be described. A detlector flange (52 is carried by the walls 10 adjacent to and laterally ot the opening (30 extending diagonally upwardly and inwardly thereof tor a purpose to be subsequentlyindicated. A stein bearing arm G4 extends inwardly across the opening (30, and is provided with a bearing opening therethrough having a stem (35 slidably engaged therein carrying a valve GG arranged for engagement with the seat Gl. The stein 65 extends through the valve GG and is engaged through an ripening G7 in a bridge piece (5S extending across the interior of a valve casting 69 secured -to the boss (32. .lhe valve casting (39 comprises a casting of cylindrical shape having a flange 70 provided with a series of j'ierforations 73 corresponding with a similar series l 'formed in the boss (52, and having screws 74 engaged therethrough to hold the casting in engagement with vthe valve chamber A, the outer extremity ot the casting (35) is threaded for engagemeiit willi supply pipes.

pivot pin An L extension is formed on the casting G9- of similar size to the outer end of the casting and being similarly threaded. A boss' 75 is formed upon the upper portion of the casting (3S) and is provided with au opening 7() communicating with the interior of the casting having a shaft 77 revolubly engaged therein, the upper end of the shaft being provided with a lateral enlargement 78 out-, wardly of the bossl 75 and carrying atits base a cani member 7!) arranged to beiir against the outer side of the valve (3G. A threaded lrecess is formed in the upper end of the .shat't y77. lt will be seen that a throttle lever may be secured upon the portion 78 and 'retained in engagement thereon by means ol a screw engaged in the recess 70. Upon oscillation of which lever thc cam 79 will be rotated to restrict' orincrease the limit of movement of the valve (3G.

It will be seen that' the present earlmretcr may be connected with inlet oi a gasolene motor, and used eithe as a. mtazhanically governed mixer or as an automatically governed one. fly means ot the lever 57' it will be siren that. the proportion o'l2 air to the fuel entering-the chamber may be regulated to any desired extent as above described. The supply of fuel will be d'il'lused over the surface ot the cone' IG, and thus otter the greatest area for evaporation through the contact -of the incoming air, the piston serving to direct the air against the fuel spread on the cone, and also to promote contact with the greatest. possible quantity against the fuel supply. The deflector 62 will serve to prevent unevaporated fuel from passing directly to the outlet opening 60 from the cone 16 and also thoroughly mix the vapor.

If it is desired to use the carbureter as an automatically governed mixer,.the lever 57 may be oscillatd beyond the normal limit of its movement t'o bring the vertical portion of the slot 36 over the pin 53 in the needle 54. -The force of incoming air will ths chamber,

' proper-connections between and the heating means both the supply of raise the piston 30 and operate theneedle 54 relatively to supply a quantity of fuel proportionate to the amount of air passing through the carbureter.

It will also be apparent that by making the openings 21 air and the 'supply of fuel may be heated.' It willfbe understood that suitable check means may be provided to limit the movement of the lever57.

, What is claimed is l 1., A-'carbureter of the class described comprising a walll` portion forming a mixing said chamber having an outlet, a conical base carried by the wall portion, a fuel passage communicating with said chamber through the apex of said conical base,

. said base having a peripheral' series' of air inlets therethrough, a piston engaged slidably in the chamber, and having a conical recess in its base arranged to engage closely with said conical base, said piston being arranged to close said air inlets when so engaged, f' said piston havin an upwardly flared -fopening concentrical y therethrough, a needle valve seated upon the apex of said base,/ means for operating said valve to admit /fuel to the chamber, operative connections between said piston'and the needle to raise the piston for the admission of 'air in fixed ratio with respect to the quantity of fu'el entering the chamber, and means for adjusting the connections between the needle and piston to vary the said ratio.

2. A carburetor of the class described comprising a wall portion forming a mixing chamber, said chamber havin an outlet opening through said wall, a ase carriedthereby havlng a conical-eXtensionprojecting into the said chamber, said base having a: series of air openings peripherally of said conical extension, a piston engaged slidably within the chamber and"'having a conical conical recess therein arranged to engage over said extension of the base, 'said piston opening of said fuel passage, means for opl erating said valve and said piston simultaneously to admit air and fuel in fixed ratio to said chamber, and means for adjusting said ratio between air and ber.

3. In a carhureter having a'mixng chamber, the combination with a conical fioor having a concentric peripheral air inlet, and a central reduced fuel inlet at the apex of the floor, of a piston valve'comprising an annular member having a conlcal recess therein adapted to engage closely over the con-ical floor, and having an "enlarged outwardly flared opening extending upwardly therethrough, 'a vertical needlevalve seated in the opening through the conicahiioor, and adjustable connections between the needle valve and the piston for cooperation toadmit air and fuel in a predetermined ratio.

4.. A carbureter having a needle valve, a separate slidable air valve, adjustable conneedle valve to regulate the vrelative movement of the two valves, a mechanical means for operating the valves, saidmeans comprising a sleeve revolubly engaged around said needle valve'an'd having a peripheral slot therein extending diagonally with relation to the axis of the sleeve and having a longitudinal extension at one end, a lateral pin carried by the needle and engaged slidably in the slot, for longitudinal movement of the needle upon rotation of said sleeve, means for rotating the sleeve, and a spring engaged outwardly of the needle valve to yieldably resist operation thereof, said needle valve being adapted to be 4automatically governed by the movement of the air valve when the sleeve is rotatedto bring the pin .into alinementwith the longitudinalextension of the slot.

5. A carbureter including an air inlet valve, a fuel valve, each of said valves being slidable, a lever pivoted variably adjacent to one of'said valves, said lever being variably 'engaged with said last named valve intermediately of'its length, and a link connection other valve.

In testimony whereof I ah'ix my signature, in presence of two witnesses.,

JULiUs n. ooornn.

Witnesses:

CLARK E. LONG, FRED W'. BUnx.

fuel entering the chamnections coengaged with the air valve and between the outer end of said lever and the

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