US911349A - Carbureter. - Google Patents

Description

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A. WEILAND.

GAEBURETER. APPLICATION FILED APB.23,1908.

Patented Feb. 2, 1909.

2 SHEETS-SHEET 1- A. WEILAND.

GARBURETER.

APPLICATION FILED APB.23,1908.

91 1,349, Patented Feb. 2, 1909.

2 SHEETS-SHEET 2.

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Paternted Feb. 2 1-998.

To all whom it may concern;

Be it known that I, ALFRED"WEILAND, a c tizen of'the United States, residin in the city and county ci- Philadelphia, tote oi 6 Pennsylvania,- have invented a new and use- Garbureter, of which the following is a. specification.

The object of mg invention is to supply a gas engine with t e proper mixture 0 and air under all conditions, and especia 1y that 1iti rpeof engine used in automobiles and the e, where the demands for speed and power are constantly varyi ureter is subject to an ever of level. a Y

It consists of a carburetor having a partitlon therein, formin a flu-id reservoir and a mix ng chamber an also providing a small auxiliary reservoir, the latter being so located and positioned as to be but slightl affected by any ch e in the level to w 'ch the carburetor may e subjected. It further consists of an auxiliar air ass sage communicating with the sand 'ary uid resprvoir. at a oint below the surface of the fluid therein, fv means of which a quicker va' orization 0 the fluid in this reservoir ta es place, resulting in the discharge of a much richer mixture to the main mixing chamber.

It further consists of an air throttle control ad ustably mounted within the carburetor chamber, by means of which a definite pro ortion of air may be admitted, and 35 which at the same time may move automaticall to its maximum opening through the sud en 0 ening oi the throttle.

It furt er consists of other novel features of construction all as will be hereinaiter fully and the carifting change set forth.

,Fi ure 1 represents a seetional elevation of a car ureter embodying my invention. Fig. 2 represents a section on line :c-e, Fig, 1. F1 3 represents a section on line y-y, Fig. 1 or t e purpose o6 illustrating my inventron, I have shown in the accompanying drawings those embodiments wlu'ch will give reliable and satisfactory results in practice,

although it is to he understood that the varione instrumentalities of which my invention consists can be variously arranged and organizedand that my invention is not limited to the precise arrangement and organisation of these instrumentalities as herein shown.

' Similar numerals of reference indicate correslponding parts in the res.

eferring to the drawings:. 1 designates a casing provided with air inlts/ 2, a fluid inlet 3 and a mixture outlet 4. In the present instance the fluid inlet 3 is formed in an extension 5 of an annulus 6, which latter, together with a closure 7 forms a partition dividing. the casing 1 into a mixing chamber, and a fluid chamber 8. Within this chamber Sis a float 9 preferably of cork or material 01- like qualities, to which is secured a valve stem 10 having a valve 11 thereon adapted to seat and close the fluid inlet openin 3, the end of said stem being provided with a .ide 12 o crating in an outlet 13 leading cm the chamber 8 to an auxiliary reservoir 14-, formed in the partition by means of an extension 15 secured to the closure 7'. This extension 15 is exteriorl threaded in order to'receive a cap 16 whic is adapted to adjustably cooperate with the closure 7 to form an outlet pass a 17 communieating with the auxiliary c amber 14 means of suitably spaced apertures 18 in t e wall of the extension 15. In the preferred form the side walls of the sees a 17 are tapered from the apertures 18 1n or or to form a comparatively small exit opening 19 for the discharge of the fluid vapor. In order to maintain: the cap 16 in adjusted,position, a bushing 20 is provided, screwed upon the extension 15 to erformthe functions of a lock not. This ushing 20 is provided with an apertured flanged portion 21 adapted to receive a spindle 22, for a pure to be hereinafter described. The air inlets 2 communicate with a mixing cham ber 23 through a passage way formed between the annular flange partition 6 and an annulus 24 secured to a s ider member 25 adapted for adjustment re ative to the arti-tion 6 so that the quantity of air w rich passes through the conduit may be accurately regulated. This s ider 25 has formed integral therewith, a tu ular extension 26, suitably guided in a sleeve 27 the latter having an annulus 28 connected thereto by means of radial arms 28.

29 designates ribs secured to the annulus 28 and connecting the same to an annular ring 30, forming a slide valve for controlling the mixture outlet 4, or as more commonl known, the throttle. This throttle valve controlled in any suitable manner, in the present instance bein series of cranks 31 {M15 32 and a link 33, the latter bein connected with a reinforced portion 34 of t 0 ring 30. The tube 26 is adapted for adjustment in order to vary the air inlet passage and in the present instance is accomplished by providing a threaded portion 35 on which an adjusting nut 36 is located, the same being controlled by a locking nut 37. It will be clear that the adjusting nut 36 rests upon the top of the sleeve 27 so that the position of the spider 25 and its wall 24 is accurately positioned relative to the annular partition 6, thereby controlling the quantity of air admitted to the mixing chamber 23. Upon the operation of the throttle lever 31 so as to open thethrottle valve 30, the annulus 28 is raised and therefore carries with it the spider 25 so that as soon as any mixture is drawn ofl through the open throttle valve, the supply of air to the mixing chamber 23 will immediately be increased.

It will be noted that any undue pressure upon the lower side of the spider 25 will also act to raise the same, since there is no direct connection between the sleeve 27 and extension 26, the one merely resting u on the other through the medium of the a justin nut 36. Such an action would take place i the throttle was opened ver suddenly, since the increased suction would raise the spider 25 quickly in order to supply the correct ratio of air and gas to'the motor. Within the tubular extension 26 is located the tube 22 having a passage 38 therethrough, the same leading from the exterior of the casing 1 to the interior of the auxiliary chamber 14 and communicates therewith through openings 39 formed in the end of the tube 22 and below the level of the fluid in the auxiliary reservoir. The end of this tube 22 is preferably formed as a conical valve 40 seating on the opening 13, whereby the regulation of the fluid to the auxiliar chamber 14 may be controlled. In view 0 the threaded engagement of this tube 22 with the annulus 21, a slight turn one way or the other will immediately result in a different adjustment of. the valve 40 relative to its valve seat. In order to lock this member in its adjusted position, I preferably form on the end thereof, a knurled member 41 adapted to be engaged by a lock strip 42 suitably mounted on the top 43 of the casing l. The auxiliary chamber 14 IS a ve essential feature of my invention in view of t e fact that it is substantially at the center of the carbureter and is therefore less effected by any differences of level to which the carbureter may be subjected, and therewill always be a small amount of fluid therein to maintain the correct ratio between the gas and air, and thus approximately keep the mixture properly proportioned to the speed. The

operated through av fluid enters the carbureter through a pass e 44, communicating with the interior of is extension 5, from which latter the inlet 3 leads to the reservoir 8, meansof thevalve 11.

e operation of the device is as follows A sup ly of fluid enters through the channel 44 an as the float 9 at this time is in its lowest position, the valve 11 will be open and the fluid has an unrestricted flow upward through the inlet 3 into the chamber 8, in which it ascends and adually raises the float until the desired height has been reached, when the float will of course shut ofl the valve 11 and revent further entrance of the fluid. This, owever, does not occur until a small amount of fluid has passed through the aperture 13 into the auxiliary reservoir 14in which it is allowed to rise until the air inlets 39 in the tube 22 are covered. As soon as the throttle 30 is moved to open the mixture outlet 4, an upward suction will take place through the carbureter, through the agency of the engine's iston and a uantity of air will be drawn t rou h the et 2. This inrush of air passes throug the restricted assagle way between the walls 6 and 24 and by t e o ening 19, from which a small quantit of t e fluid is drawn off and intermixed t erewith and the mixture then passes upwardly to the throttle valve to the engine. A further suction also takes place through the passage way 38 and a quantity of air passes down therethrough and emerges through the apertures 39, eneath the liquid in the auxiliary chamber 14, where it becomes much more intimately mixed with the fluid, producing a quicker va orization and a ve rich mixture which is rawn ofl' throu h the o ening 18 by the air rushing by. t will t us be clear that under the most exacting conditions there will be no flooding of the carbureter, since the annular sprayer islocated some distance above the central needle valve. Furthermore attention is directed to the adjustable air throttle controlled by the lock nuts 36 and 37.and so mounted as tobe lifted by the suction of the piston automatically to regulate the amount of air in case of a sudden opening of the throttle.

The action of m carbureter is tq suplpllya mixture of gas an air to the engine w c is accurately roportioned at all times to meet every speed demand upon the engine. Th s definite mixture I obtam from my automatic regulation, in connection with t e auxihary fluid reservoir in which at the maximum s eed there is practically no liquid present,

no to the fact that the ente air rushes set the opening 19 so rapid and in such arge quantities as to comp ete y vaporize all of the liquid in this reservoir. However on a sudden drop in speed, due to a load coming upon an en ine, the air will conse uently be somewhat lminished and the an ary resercontrol being had by voir gradually filled to its normal level with fuel, at which level the openings 39 from the central air supply tube are completelfllcovered and there ore the admission of t 's air will be through the liquid fuel, the airof course bubbling up through the liquid to produce a mixture sufficient y rich to meet this sudden demand upon the engine.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a device of the character described, a casing, a partition in said casing forming a reservoir and a mixing chamber, an auxiliary reservoir formed in said partition and communicating with said mixing chamber, an air inlet to said mixing chamber, a fluid inlet to each reservoir, means to control said fluid inlets, and means communicatin with said auxilia reservoir whereby air is admitted thereto elow the level of the fluid therein.

2. In a device of the character described, a casing, a partition in said casing forming a mixing chamber and a reservoir, an auxiliary reservoir formed in said partition, a fluid inlet to said auxiliary reservoir, an outlet therefrom adjacent the air inlet to said mixing chamber, and means communicating with said auxiliary reservoir, whereby air is admitted thereto below the level of the fluid therein.

3. In a device of the character described, a casing, apartition therein forming a reservoir and a mixing chamber, an auxiliary reservoir formed in said partition, an outlet therefrom having tapered sides, means to adjust one of said.s1des to vary the o ening, an air inlet leading to said mixing 0 amber, and a mixture outlet from said mixing chamber.

4. In a device of the character described, a casing, a partition in said casing forming a reservoir and a mixing chamber, an auxiliary reservoir in said artition and communicating with said mixi g chamber, a tube central of said casing and communicating with said auxiliar reservoir, air outlets in said tube below t e level of the fluid in said auxiliary reservoir, air inlets to said mixing chamber, a mixture outlet from said casing, a throttle valve controlling said mixture outlet, and means cooperating therewith to vary the air supply to said mixing chamber.

5. n a device of the character described, a casing, a partition therein forming a reservoir and a mixing chamber, an auxiliary reservoir in said partition, a fluid inlet therefor, a valve for said inlet having a hollow stem, air outlets adjacent said valve, and means to adjust said valve to vary the admission of fluid to. the auxiliary reservoir.

6. In a device of the character described, a casing, a partition therein forming a reservoir and a mixin chamber, an auxilia reservoir centrally ocated in said partition, a

fluid inlet therefor, a valve for said inlet, a hollow stem on said valve, outlets adjacent said valve and below the surface of the fluid in said auxiliary reservoir whereby air is admitted, and means totadjust said valve to vary the admission of fluid.

7. In a device of the character described, a casing, a main-reservoir, a mixing chamber formed therein, an auxiliary reservoir communicating with said main reservoir and said mixing chamber, an air inlet to said auxiliary reservoir, and means to vary the admission of fluid to said auxiliary reservoir.

8. In a device of the character described, a casing, a main reservoir and a mixing chamber formed therein, an air inlet to said mixing chamber, an auxiliary reservoir communicating with said main reservoir and a mixing chamber, a mixture outlet, and means to control the admission of air to said mixing chamber according to the pressure in said outlet.

9. In a device of the character described, a casing, a main reservoir and a mixing chamber formed therein, an air inlet to said mixing chamber, an auxiliary reservoir communicatin with said main reservoir and said mixing 0 amber, a mixture outlet, and automatic means to control the admission of air to said mixing chamber according to the pressure in said outlet.

10. In a device of the character described, a casing, a main reservoir and a mixing chamber formed therein, an auxiliary reservoir communicating with said main reservoir and said mixing chamber, means centrally located of said auxiliar reservoir to control the admission of flui thereto, an air inlet to said auxiliary reservoir, a mixture outlet, and a throttle valve controllin said outlet.

11. In a device of the c aracter described, a casing, a partition therein forming a reservoir and a mixing chamber, an auxiliary reservoir in said partition communicating with said main reservoir and mixing chamber, an air inlet to said mixin chamber, an outlet from said mixing cham er, means to control the admission of fluid to said auxiliary reservoir, and pressure actuated means to vary the admission of air to said mixing chamber.

12. In a device of the character described, a casin a' partition therein formin a reservoir an a mixing chamber, an auxi iary reservoir in said partition communicatin with said main reservoir and mixing cham er, a valve controlling the admission of fluid to said auxiliary reservoir, an air inlet adjacent said valve, an air inlet to said mixing chamber, automatic means to control the admission of air thereto, and a mixture outlet.

ALFRED WEILAND.

Witnesses:

ROBERT M. BARR, C. D. MOVAY.

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