US1196669A - Carbureter. - Google Patents

Description

Specification o Letters Patent.

Patentedlug, 29, Mild.

` Application led March 30, 1916. Serial No. 87,245.

To all whom t may conce/m Be it lrnown that l, CHARLES on L'UnAosr vroemJ citizen of the United States, residing at Newark7 in the county of Essex and State of New lJersey, have invented new and useful 'improvements in Carbureters, of which the following is a specificationv This invention relates to improvements in earbureters, proposing a carburetor of that broad or general type wherein an absorbent distributing element, partially submerged in the liquid fuel, is arranged to deliver gasolene vapor to the air induced through the mining chamber and is vertically movable whereby to increase or decrease its submergence in the liquid' 'fuel and a valve member is provided which operates in con junction with the vertical movementof said absorbent element to" regulate the degree of its exposure to the air passing through the mixing chamber.

The principal object of the invention is to provide an exceedingly simple, eliicient and reliable carburetor of the type described.

The invention consists in certain novel features of construction and combination which will appear as thedescription proceeds.

An embodiment oit' the invention is illustrated in the accompanying drawing7 wherein Figure 1 is a vertical longitudinal sectional view of a carburetor in which the features of the invention are incorporated; and Figs. 2 and 3 are detail vertical crosssectional views through the air passage or mixing chamber showing the absorbent distributing element in its .extreme positions.

Similar characters of reference designate corresponding'parts throughout the several views.

The fuel chamber l concentrically surrounds an air passage 2 from which it is separated by a cylindricalwall 3. The air passage 2 provides a mixing chamber and is open at its upper end to the motor suction tube (not shown) to which the carbureter is connected by an attachment flange 4.

The air passage 2 has its lower or inlet end olf bell or flaring form as at 5 and is arranged above, and in axial valinement with,

.and having a threaded an air inlet chamber 6 provided with a laterally directed inhaust tube 7. The chamber 6 has a partition 8 which provides a seat for a valve 9 employed to control the admission of air to the passage 2. The valve 9 is preferably spring loaded, being' urged ,toward its seat by a helical spring 10 which at its lower end projects into a central vdepression of the valve 9 and at its upper end hears against a stop collar 11 lxedly mounti ed on a stem l2.

The stem 12 is threaded through the hub of a spider 13 arranged in the AHaring inlet 5 and projects at its lower end. beyond the chamber 6, terminating in a lrnurled head portion 14 adjacent said head. A. lock nut 15 is mounted 'upon the threads 14 and bears against the base of the chamber 6. The nut 15 serves to hold the stem 12 against turning movement from any position to which it may be adjusted and also to hold the chamber 6 (which is preferably made as av separable casting) against the base of the fuel chamber 1` Obviously, by turning the stem 12 in its threaded bearing inthe spider 13 and thereby raising or lowering the collar 1.1, the tension of the spring 10 may be regulated as desired.

The wall 3 is provided at a suitable elevation with several horizontal rows o' openings 16 which are preferably inclined in-` wardly and upwardly in order to deliver the gasolene vapor into the air toward the center of the ascending column and in the same, e. e. upward, direction in which thc air is moving.

The absorbent fuel distributing element 17 is of annular form and has a close surrounding lit loh the wall 3, being' slidablc lengthwise of said wall. The element 17 preferably has its outer circumferential face of inverted conical :form whereby the eirposure of said clement to the liquid fuel will be increased by progressively greater increments as said element is moved downward into the liquid fuel. ln this way, an exposure of the element .1.7 whereby said element will deliver an amount ot liquid fuel suiicient for the maximum engine speed may be obtained with a comparatively short downward movement of said elementi The element 17 in any operative position thereof willcovei the openings 16. The communication yof these openings with the air passage 2 is controlled by a ring valve 18 which has a relatively close fit aga-inst the inner face of the wall 3 and is slidable lengthwise of said wall. rlhe valve 18 and the distributing element 17 are movable as a unit., and for this purpose, are connected by a cross-bar 19 whose ends project through vertical slots 20 in the wall 3. l` he valve 18 is provided with oppositely located upright ears 21 and the cross--bar 19 projects through openings in the ears 21 and is provided at its ends and as parts thereof with retainin screws 22 for the element 17.

As shown and preferred, the unitary operation ofthe element 17 and the valve 18 is correlated to the operation of the throttle `valve 23 which is mounted in the .upper portion of the air passage 2. The throttle valve 23 may be of butterfly forni and operates the element 17 and the vvalve 18 by means of a link 24 extending between the cross-bar 19 and the valve 23. When the valve 18 has been lowered sutlicicntly to uncover any of t-he openings 16 gasolene vapor will pass through said openings andwill be takenA uprby the ascending column of air in the passage 2. To facilitate the mixture of the fuel constituents, the stem 12 is provided at its upper end with a spreader 25 of inverted conical forni.

The fuel chamber 1 may conveniently be `element 17 is completely withdrawn from the liquid in the chamber 1. As the throttle valve is opened, the element 17 and valve 18 are lowered, and as the throttle valve is closed, the element 17 and valve 18 are raised. bviously, the degree of downward or upward movement of the element 17 and valve 18 depends upon the degree of open-- ing or closing movement ofthe throttle valve. It will be apparent that the aggregate area of `the openings 6 uncovered by the valve 18 in its downward movement will progressively increase and that the submergence of the element 17 iii the liquid fuel and. hence, the area of said element exposed to the liquid fuel, will progressively and proportionately increase. In this way, the amount of liquid fuel delivered into the passagel 2 from the element 17 will be proportionate to the opening of the throttle. 'It follows that an accurate regulation f the amount of liquid fuel suitable for any speed within the range of the engine may bc ob tained.

I claim- 1. In a carbureter, in combination, a fuel chamber, an air passage, an annular wall separating said chamber from said aii pas` sage, the fue] chamber surrounding the air passage, an annular absorbent fuel distributing eleiiieiit surrounding said wall and movable lengthwise thereof, said wall having openings over which said element extends, a ring valve arranged'within the air passage and fitting against said wall, said ring valve controlling said openings, and connections between said element and said valve to provide for their unitary movement 4lengthwise of said wall.

2.' In a carbureter, in combination, a fuel chamber, an air passage, an annular wall separating said chamber from said air passage, tlie fuel chamber surrounding the air passage, an annular absorbent fuel distributing element surrounding said wall and mov able lengthwise thereof, said wall having openings over which said element extends,

aring valve arrangedwithin the air passage and fitting against said wall, said ring valve controlling said openings, said wall having oppositely located vertical slots, and a crossbai connecting said element and valve and projecting through said slots.

3. In a carbureter, in combination, a fuel chamber, an air passage, an annular -Wall separating said chamber from said air passage, the fuel chamber vsurrounding the air passage, and an annular absorbent fuel vdistributing element surrounding said wall and movable lengthwise thereof, said wall having openings over which said element extends and said element having its outer circumferential face of inverted conical form.

11. In a carburetor, in combination, a fuel chamber, an air passage, an annular wall `separating sai'd chamber from said air passage, the fuel chamber surrounding the air passage, an annular absorbent fuel dlstributing element surrounding said wall, said ,wall having openings over which said element extends and an inverted conical spreader arranged concentrically within said air passage below said openings.

In a carburetor, in combination, an air passage, a surrounding fuel chamber, an annular wall separating said passage and chamber and having fuel delivery openings, a spider at the lower end of said air passage, an air inlet chamber sepaiably fitted under and in alinement with said air passage and having a horizontal partition formed with a valve seat, a valve (to-acting with said seat, a stem projecting through the base of said airinlet chamber and through said valve, said stem being threaded into said spider and having a collar below said spider, a

heeal spring surrounng said stem be tween sind colar and hemg tnremed at lts 1 111m mounted upon th 5% stem :m engaging against air inlet chamber.

said valve, said meme@ stem 9messes.

ower end, and a; lock e lower end of said 'the base of said my hand in CHARLES DE LUKAGSEVIee.

Witnesses:

MORRIS MICHELSON, CHARLES BL VVOLFF.

p'esence of two subscribing 'Wit-

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