US1614238A - Carburetion means - Google Patents

Description

Patented Jan. 1l, 1927.

SYLVESTER A. GUTMAN, OF FLINT, MICHIGAN. i

-CARBUBETION MEANS.

Application filed June 5, 1925. VSerial No. 35,083.

lily invention relates to means for delivering carburetable substance, sucli as gasolene, into a carburetor device.

One of the objects of my invention is an eiiicient means for positively delivering a carburetable substaiiceinto a carburetor dcvice. l

Another object ot my invention is an eiiicient means for delivering carburetable'substance into a carburetor device by -means of power either romthe power of an engine associated with the carburetor device or from another source.

Another object of my`invention is an eiiicient means for positively delivering carburetable substance into a carburetor device irrespective of -whether the receptacle containing the carburetable substance is located or positioned above or below the carburetor device. j

.Another object of`my invention is an eiij v 1. cient means for positively delivering car- ,.buretable substance into a carburetor device, and controlling the delivery of the substance. Another object of my invention is an eflicient means for positively delivering carburetable substance into a carburetor device and collecting the overfiow from the carburetor device and returning it to the receptacle containing the carburetable substance to prevent loss of carburetable substance in case the delivery means delivers riore substance to the carburetor device than necessary.

Another objectot my invention is an etlicient means -for positively forcing a carburetable substance intoa carburetor device primarily by power means and secondarily bv manual means when the power means is not available or when the carburetor device is empty and the power device can not be started.

Another object of my cient means for forcing a carburetable substance into a carburetor device by means of power residing in an engine. associated with the carburetor device. and controlling oi' regulating the speed ot the means which forces the substance into the carburetor device by means ot the substance in the carburetor device. y

)another `object of my invention is an ettiinvention is an etliciciit means toi' forcing carburetable sub-I stance into a carburetoi` device by means of a power device' operated by power of an enor' device, a vacuum tank was employed in some instances to elevate the substance sufficiently far to permit such gravity feed; in other instances, anair pump was used to create a pressure in the receptacle to force the substance into t-lie carburetor device.

The vacuum tank mentioned often fails to Work and requires delicate adjustment when -itfails. Such adjustmentrequires an leitpert and the engine positively stalls until the adjustment is properly made. This failure of the vacuum tank results in considerable inconvenience and loss.

The air pump mentioned is, usually, manually operated and requires constant atten` tion and frequent manipulation. Withsuch a. pump the pressure in the receptacle varies and consequently the iiow of the substance varies also.v

The two disadvantages mentioned are two of the main sources of trouble. and loss in the previous devices or means and methods of supplying carburetable substance into a carburetor device. i

,The present invention aims to eliminate all possible disadvantages as well as losses found in previous devices and to provide a bettei' method and means for delivering a carburetablesubstance into a carburetor device. f

lt is distinctly understood that the present application does not include the miethod nor tlienieans of such accessories as vacuuin tanks or air pumps which really do not pump the earburetable substance directly but which create a vacuum or an air pressure in the receptacle containing the substance to move the same. v

In the accompanying drawing I have il,-

lustrated my invention diagrammatically in two embodiments to show the features essential to carry out my invention in different forms and in different combinations of elements.

In the accompanying drawing Fig. 1 is a diagrammatic perspective view of a pump and carburetor device, embodying the features of my invention, and shows a pump device actuated by an air current,l as from a cooling fan for instance, and a portion of a carburetor device associated with the pump device in a certain manner or relation and located or positioned near the bottom of the pump device.

Fig. 2 is a fragmental sectional view, on a larger scale, of the lower portion of the pump device of Fig. 1 and shows a certain 1 valve arrangement for the pump device.

Fig. 3 is a diagrammatic perspective view lof a pump andl carburetor device, embodying the features of my invention, and shows a pump device actuated by a belt from some source of power and a carburetor device associated with the pump device in a certain manner or relation and located or positioned above the pump device.

Similar reference characters refer to similar parts.

Referring now to Figs. 1 and 2 of the drawing:-

Although any sort of pump device may be employed to carry out my invention, I have shown here a vertical reciprocating pump having the cylinder A and the piston B reciprocable therein. Any usual orspecial sealing means may be provided to prevent leakage between the piston and the cylinder wall.

The cap C is secured to the lower end of the cylinder A by means of the screws 10 and is provided with the main port l1 in communication with the cylinder bore. The inlet port 12 is in communication with the port 11 and the ball-valve 13 is interposed between the ports 11 and 12. The outlet port 14 is in communication twith the cylinder bore above'the valve 13 and the ball-valve l5 is disposed in the port 14.

W'hen the piston B moves upward in the cylinder A, the. suction created by this movement ot' the piston raises the valve 13 and draws lsubstance into the cylinder A while the valve- 15 closes the outlet port. When the pis ton B moves downward in the cylinder' A, the substance previously drawn into the cylinder seats the valve 13 and closes the port 12 while the valve 15 is moved from its seat and the substance passes from the cylinder into thecarburetor D through the pipe 16.

The lower end of the pitman E has the eye 17 disposed between the ears 18 of the piston B and swivels onthe pin 60 extending through the eye 17 and the ears 18.

The upper end of the pitman E has the eye 19 engaging an eccentric to be more fully described later.

The shaft F is journaled inl the bearing 20 which is supported on the cylinder A. The eccentric 21 is provided on the front end of the shaft F and tits the eye 1.9 previend of the shaft G and the friction wheel 26 is secured to the rear end ofthe shaft G in alignment and in contact with the frietion wheel 23.

In the present instance, the fan wheel 25 has the band 27 within the tubular housing 28 which is supported on the arm which supports the bearing 24.

The brake shoe 29 is mounted in the housing 28 with the upper end thereof adjacent to and radial with the band 27 and the lower end 3() thereof extending through a boss on the housing 28.

The carburetor D is connected to the lower end of the cylinder A b means of the pipe 16 previously mentione and the float 31 is hinged within the carburetor. The

float 31 is provided with the stud 32 projecting through the cover of the carburetor.

One end of the lever 33 'is hinged to the cylinder A by means of the pin 34 and the other end is provided with the boss 35 into which the adjusting screw 36 is threaded; the nut 37 locks the screw 36 in adjusted position. The lever' 33, intermediate the ends thereof, contacts the end 30 of the brake shoe 29. I

The funnel 38 is provided to collect'an air current and to direct the same into the housing 28 and consequently into the fan wheel 25.

As to operation:-

Tho device now under consideration is operated by an air current such as might be produced by the cooling fan of an engine for instance. y

The funnel 38 collects the air current and directs the saine into the housing 28 and against the fan wheel 25 and thereby rotates the same as is well known in the art.

Since the friction wheels 23 and 26 are. in contact, the rotation of the fan wheel 25 and consequently the shaft G and the wheel 26 thereon rotates the wheel 23and cousequently` the Shaft F and the eccentric 2l thereon.

Since the eye 19 of the pitman E engages the eccentric 21, and the eye 17 of the pitman E is hinged to the piston B, the described rotation of the shaft F causes -the pitman E to reciprocate and consequently reciprocates the piston B to perform the Cil ldraw substance from the receptacle H and deliver it into the carburetor D through the pipe 16;

l/Vhen the carburetor D is filled to a. desired degree, the float 31 rises to the position shown in Fig. 1 and the end of the stud 32k vforces the outer end of the lever 33 upward and thereby also forces the brake shoe 29 upward and against the band 27 to act as a brake and eitherv retard or completely stop the rotation of the fan wheel and consequently of the entire pump device. v

The point of either retardedrotation or complete-stoppage of the fan wheel is ad-A justable by means ofthe 'screw 36 which is locked in adjusted osition by the nut 37.

As soon as the oat 31 recedes or drops below the normal level, the outer end of the lever 33' drops accordingly due toits own weight in the present instance and thereby also permits the brake shoe 29 to drop anfl thereby disengage the band 27 and thereby removes the brake action onthe band and permits the fan wheel to -rotate and consequently start the pumping operation which will continue until sulicient substance is pumpedinto the carburetor to elevate the float to normal position at Iwhich stage the rotation of the fan wheel may be so ,acted upon by the brake shoe that the same is restarted to rotate just enough or just fast enough to keep the float at its normal level. If, for any reason, this brakesh-oe does not work properly to keep the normal level in the carburetor, the brake shoe will b e forced tightly against the band. and the pumping stopped in case the pump was running, too fast and the level in the carburctor rose too high and, reversely, when the' level falls too low, the brake action'is removed completely to permit the pump to work at vfull speed until the level in the carburetor is up to normal again. j

A certain speed reduction is shown in Fig. 1 by the wheels 23 and 26. The speed ratio may be varied to suit different conditions such as available air current orj'different heights to which the substance must be lifted for instance.

Then the carburetor is empty and an e11- gine is dependent upon the carburetor and,

therefore, can not be started with an emptycarburetor, and when the air current to oper.- ate the pump mechanism depends upon the engine, the shaft' F is rotated by means of the crank handle 22 .until a sullicient quantitv of substance is pumped into the carburetor. After the engine is started, the pump mechanism takes care ofkeeping tliecarburetor filled; the handle 22. is provided for l emergency only.

The level of the substance in the carburetor, or 1n other words the upward limit of thetravel of the float, can be adjusted by meansof the adjusting screw 3G to apply the brake sooner or later in the up and'dow travel of the float. l

In some instances, the brake-mechanism may fail toretard or stop the rotationfof the fan wheel and thereby permit more substance "to be pumped into the carburetor than is consumed by the engine, resulting in flooding or overflowing of the carburetor. In order to conserve this overflowing substance and to prevent the loss thereof, I provide the overflow pipe 39 between the carburetor and the receptacle to return the surplus or overflowing substance to the receptacle H.

ReferrinvV now to Fig. 3 of the drawing.

In .this iIlustration I have again shown a vertical reciprocating pump means having the cylinder Iiand the piston J reciprocable therein and pumping the substance into a carburetor similar to that shown in Fig. 1. Anyusual or special piston sealing means may also be employed in this illustration.

'Ihe cap "K is similar to the cap C described in connection with Figs. 1 and 2 and the carburetor L is similar to the carburetor D and has the loat'4() and the stud 41.

The pitman M is similar to the pitman yEY described in connection with Fig. 1 and is hinged to the piston J similar to the hinge joint between the lower end of the pitman E and the'upper end kof the piston B previously described. The upper end of the pitman M has the eye 42.101 the purpose appearing presently.

The shaft N is journaled in the bearing 43 which is supported on the cylinder l. The pulley 44 is secured to the rear end of thel shaft N and the -belt 45 engages the same and is driven by solne sourceof power such as the crankshaft or the cam shaft or other moving partof the engine or by a device operated by the exhaust ot' the engine or by movement of the cooling water thereof or other expedient which can produce movement of the belt 45. The crank handle 4G extends from the rear end of the shaft N for the same purpose 4as the handle 220i Fig. 1.

f- The eccentric 47 is here journaled on the shaft N and is provided with the notch 4S in the outer end surface'thereof; otherwise the eccentric 47 is similar to and performs the same function as the "eccentric 21 of Fig. 1 and engages the eye-12 of the pitman M.

`The clutch 49 is slidablyv mounted on the front end of the shaft N and is rotated therewith by means of the feather 50. The inner end surface of the clutch 49 is provided with the tooth 51 adapted to the notch 4S.

The middle portion of the lever (l is fulcrumed on the'cylinder l by means of the pin 52. The lower end otl the lever O enlever O has the adjusting screw 53 vand the lock nut 54 similar to the adjusting screw 36 of Fig. 1 previously described. The adjusting screw 53 engages or abuts the stud 41.

The operation of this combination of clements is similar to the operation of the elements of Fig. 1 previously described.

When the carburetor L is filled, the iioat l0, and consequently the stud 41, rise suliicientlv to push the outer end. of the lever O upwardly suiiiciently far to rotate ythe same'on the pin 52 sufficient to throw the tooth 51 out of engagement with the notch 48, thereby disengaging the power means from the eccentric until the lioat has descended or dropped suiiciently far to again throw the clutch 49 into engagement with the eccentric and thereby start the operation of the pump mechanism.

The pump mechanism may be located anywhere in relation to the carburetor and to the receptacle 'or the carburetable sub-y stance. A study ot' any condition to be met in any particular case should determine whether the pump mechanism should be placed below the receptacle and push the substance upward, or whether it should be placed or located up near the carburetor and pull the substance upward, or whether it should be located between the receptacle and the carburetor (vertically) to pull the substance upwardpart way and to push it upward the rest of the way.

As previously stated, the embodiments of `my invention illustrated and described are diagrammatic only. I am aware that various modications may and can be made in the structure of the elements as well as in the arrangements and combinations and associations vthereof within the scope of the appended claims.

Having described my invention as embodied in the two illustrations shown, and without-limiting myself to the construction ot' the elements so shown and described as well as the arrangements and combinations and associations of these elements so illustrated and described,

I claim 1. In a carburetion means, a carburetor having a float, a pump connected with said carburetor, a rotatable wheel to operate said pump, and friction means operated by said lioat to vary thel speed ot said wheel.

2.111 a carburetion means, a carburetor having a float, a pump connected with said carburetor, a rotatable wheel to operate said pump, and a brake shoe moved toward and away from said wheel by the rise and fall. ol' said float to vary the speed of .rotation ol" said wheel.

3. ln a carburetion means, a carburetor pump by means of an air current, and means operated by said ioat to change the speed ot' said fan wheel.

4t. In a carburetion means, a carburetor having afloat, a pump connected with said carburetor, a fan wheel to operate said pump by means of. an air current,'and friction means operated by said loat'to change the speed of said fan wheel.

5. In a carburetion means,y a carburetor having a float, a pump connected with said carburetor, a fan wheel to operate said npump by means of an air current, a fulcrumed lever operated by said float, and means operated by said lever to frictionally engage said fan wheel. (S. In a carburetion means, a carburetor having a float, a pump connected with said carburetor, a fan wheel to 'operate said pump by means of an air current, a housing iuclosing said :tan wheel circumferentially, a tulcrumed lever operated by said float, and a brake shoe movably mounted in said housing and operated by said leverto contact said fan wheel and thereby change the speed thereof. 7. In a carburetion means, a carburetor, a pumpconnected with said carburetor, said pump being operated by means of 4an air current device, and brake means operated by .the rise and fall of liquid in said carburetor and arranged to change the speed of Said air current device. e

8. In a carburetion means,l a carburetor, a pump connected with said carburetor, said pump being operated by means of an air/ currentdevice, and means forl changing the speed of said air current device by the rise and fall of liquid in said carburetor and completely stopping said air current device when the liquid in said carburetor rises above a certain limit.

9. In a -carburetion means, a carburetor having a float, a pump connected with said carburetor, said pump being operated by means of an air current device, a fulcrumed lever operated by the rise and fall of said oat, and means operated by said lever to change the speed of said air current devlce.

10. In a carburetion means, a carburetor, a float in said carburetor, a pump connected with said carburetor, a fulcrumed lever opi eratively connected with the operating mechanism of said pump, a screw threaded into said lever and. contactingsaid float, the threaded engagement between said screw and said lever constituting a means for adjusting the operation of Vsaid pump according to the position of said iloat, and a nut threaded to said screw to lock the. same in adjusted position. l

11. In a carburetion means, a carburetor, a plunger pump connected to said carburetor, an air fan journaled in a denite relation to said pump, a` pump yshaft journaled in a definite relation to said pump and to said air fan, operative connection between said air fan and said. pump, an eccentric rotatable with saidshaft, and a connecting rod having an eye\encirc1in said eccentric and being hinged to the p unger of said ump. i

12. In a carburetion means, a carburetor, a pump connected with said carburetor,

power means to operate said pump, and 10 means between said carburetor and Said power means to vary the speed of said power' means vas the liquid in said carburetor rises and falls and to completely stop said power means when the liquid in said-car 15 buretor reaches a cert-ain height.

SYLVESTER A. GUTMAN.

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