US1340956A - Carbureter - Google Patents

Description

o. R. HUKLE.

' cAmsuRETE.v APPLICATION FILED AUG164| 1915. RENEWED SIEPT` 26. 1919.

1,340,956. Patented May 25,1920.

UNITED STATES PATENT .OSCAR R. HUKLE, 0F JOLIET, ILLINOIS.

CARBURETER.

1 ,3f/0,956. AApplication. led August 16, 1915, Serial No. 15.765.

To (1U /r/mm it muy confer/1.

le it known that l'. Osoxu R. HUKLE, a, citizen ofthe llnited States ot' America, and a resident ot Joliet, county ot lllill, and State ot' Illinois. have invented certain new and useiul lmprovements in Carbureters, of

which the following is a specification.

The main objeets ot' this invention are to provide a carbureter having improved means for regulating the admission of t'uel to the mixing chamber; to provide improved means for et'eeting a uniform mixture of@ the oil and air in the mixing chamber; and to provide an improved arrangement of these .means on the `arbureter easing.

v An illustrative embodiment ot' this invention is shown in the accompanying drawing, in which AFigure l is a sectional elevation of the improved earbureter.

Fig,y 2 is a plan ot the valve mechanism which'feontrols the air inlets and also operates to facilitate mixing the air and oil.

Fig. 3 is .a side elevation ot' the. same.

`ln the construction shown in the drawings, the carbureter comprises a cylindrical easing 1 having a transverse partition 2 subdivding it into an air chamber 3 and a mixing chamber l. fuel supply passage 5 extends in from theside ot the casing and communicates with an axiallv disposed oil inlet 6. controlled b v needle valves 7 and S. A pluralityv ot' apertures 9 are t'ormed in the partition 2 eoncentrimllv ot the oil inlet 6 and constitute the inlets for admitting air to 'the mixingchamber. A tuel or gas out-V let 10 at the upper end ot the casing provides for supplying fuel to the engine.

rl`he needle yvalve'S is in the torni ot' a rod and carries a. member ll in the form of a hood rigidly secured thereto so as to move in unison therewith. The member 11 has a comparatively snug lit within the mixing chamber 4 and is arranged to serve as a valve tor controlling the admission of air Jfrom the air chamber 3 through apertures flintothe'space within the hood. The member subdivides the mixing chamber 4 between the inlets'5 and 0 and the outlet 10 into two compartments. Apertures 12 are formed in the member 11 through which the, air and -oil pass from the compartment belowl the :member to the compartment above. Vanes 13 are arranged on the exterior ot the member 11 adjacent to the apertures 1'2 and are`so shaped that the streams ,of air Specification of Letters Patent.

Patented May 25, 1920.'v Renewed September 26, 1919. `Serial No. 326,563.

drawn through the apertures 12 strike the vanes and cause the member to revolve, thereby facilitating' the uniform mixing of air and oil.

The valves 8 and 11 are gravtyfactuated and the upper part 14 of the stem 8` isA slidably mounted in the cover 15 of the casing 1 so as to guide the valves in their vert-ical movements. *Y

A block or cam member 16, arried on' rods 1T and 18, is slidably mounted 0n the cover 15 between lugs 19 and 20. A cam surt'ace 21 is formed on the under sidev of the member 16 and arranged to coat-t with the tapered end 22 ot' the stem ll for limit-l ing the upward movement of the valves 8 and 11. A spring Q3 normally urges the cam member 16 into a retracted position and a centrifugal governor 21 shifts the cam member 16 against the action of the spring 23.

The specific. form of governor shown herein comprises a wheel or pulle)v 25 journaled on a shat't 26 secured to the lug 19 and provides a bearing for the rod 1T. Bell. crank levers 2T are pivoted on the wheel and weighted at onel end b'v balls QS, and connected at their other ends to a cap 29. The cap 29 embraces the end ot' the rod 1T which is shitted inwardl)r through the action of the balls 2S being urged` out\\'ardl v durinnr the rotation ol the wheel 25. The wheel 2e` is provided with a groove 30 so that it may be connected by means of a belt to the engine.

The spring 23 embraces the rod 1S and is interposed between the cam member 16 and the end ot a bolt Ell threaded into the lug Q0. The bolt 3l. is provided with a head 32 bv means ot' which it is turned f0r the purpose ot' adjusting the tension of the springr 23.

The needle valve 7. is mounted in thel 'usual manner in the bottom ot' the casing l. and is provided with an arm 33, which is adapted to coact with a dial (not shown) formed around the lower edge 31 of the casing 1 for indicating the flow of oil which is permitted b v the valve 7.

The operation of the device shown is as' follows A The suction ot' the engine causes fuel t0 'be drawn from the mixing chamber 4, which tends to create a vacuum therein. This causes the valves 8 and 11 to elevate so as to admit oil and air within the hood 11 through the oil inlet 6 and the apertures S) respectively.' rllhe oil and nir then pass through the apertures 12 into the mixing chamber l and in so doing strike the vanes l?) and cause the hood or valve 11 to rotate, thereby stirring up the gases and facilitating uniform mixing thereof. I

As the wheel 25 revolves, through its connection with the engine, the balls 28 are urged outwardly causing the levers 27 to act on the cap 29 and, through the rod 17, urge the cam member 16 against the spring 23. As soon as vthe engine exceeds a certain predetermined speed, the action of the balls 28 is increased so as to cause the cam member 16 to be shifted to bring a lower portion olf the cam member 21 over the rod 14n. This diminishes the elevation allowed the valves 8 and l1, and decreases the quantity ot oil and air admitted into the mixing chamber et, and accordingly decreases the strength oit' the mixture admitted to the engine, thereby retarding its action.

As soon as the speed ot the engine decreases to normal, the spring 23 overcomes the action ot' the balls- QS and shifts the cam member 1o into position to permit a greater elevation of the -Valves 8 and 11.

' Although but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing trom the spirit of this invention as defined by the following claims.

I claim l. A carbureter, comprising a casing provided With a mixing chamber and having an oil inlet and a plurality of air inlets 'coiwentrically arranged with respect thereto, a gravity actuated valve member subdivlding said chamber into two compart- ,ments and arranged to open and close said air inlets `so as to control the admission of air from one to the other of said compartments, and a needle Valve carried by said member and arranged to control the admis- Sion of oil through said oil inlet, said mene ber having a plurality of apertures providing communication between said compartments.

2. "A carbureter, comprising a casing provided with a mixing chamber and having an oil inlet and a plurality of air inlets concentrically arranged Awith respect there to, a revoluble valve member subdividing Said chamber into two compartments and arranged to open and close said air inlets so'as to control the admission oi: air to said mixing chamber, a valve carried by said member and arranged to control 'the admission of oil through said oil inlets,

said member having a plurality of apertures providing communication between said compartments, and vanes arranged on said member adjacent to said apertures, whereby the air and oil passing therethrough will cause said member to revolve.

3. A carbureter, comprising a easing provided with a mixing chamber and having an oil'iniet and an air inlet, a bell-shaped reciprocating valve member having apertures therethrough and dividingsaid chamber into two compartments and controlling the air inlet, a valve controlling the oil inlet and operable in connection with the operation of said member, said member and valve being arranged to admit air and oil into the mixing chamber on the concave side of said member.

Signed at (lhicago this l-lth day oi' August, 1915.

OSCAR lt. ll U llil.

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