US1107103A - Carbureter. - Google Patents

Description

H. D. PEASLEB.

OABBUBETEB.

APPLIOATIOI rmw Junnza, 191a.

Patented Aug. 11, 1914.

o l a ll v 314M010 HDPeaslce HUGH D. PEASLEE, OF FRESNO, CALIFORNIA...

GARBURETER.

Specification of Letters Patent.

Application filed June as, 1913. Serial No. 776,317.

To all whom it may concern Be it known that I, HUori D. PnAsLnn, a citizen of the United States, resldmg at Fresno, in the county of Fresno and State of California, have invented new. and useful Improvements in Carburetors, of which the following is a specification.

This invention relates to force feed mechanical carburetors, the object of the invention being to provide a carburetor which is adaptableto a variety of fuels, enabling the fuel, in accordance with the nature thereof, to be measured automatically and supplied to the combustion chamber of the motor in the proper quantity and at the proper time.

While the invention will be hereinafter described'as applied to a motor, embodying a single cylinder or combustion space, it is to be understood that the principle is applicable to motors having any number of cylinders and combustion spaces.

A further object of the invention is to provide a carbureter of the class referred to which is adapted to handle more than one kind of fuel at a time, as for example, a nick acting fuel such as gasolene of a higli grade, and a low grade fuel, such as kerosene, which explodes comparatively slowly but contains great heat value. t It will also handle an explosive gas, such as acetylene, and a low grade liquid or gas fuel.

With the above and other objects in view,

the invention consists in the construction,

combination and arrangementof parts, as will behereinafter more fully described,

illustrated in the accompanying drawings,

and pointed out in the claims hereunto ap pended. I

In the drawings: Figure 1 is a side elevation of a carbureter embodying the present invention. Fig. 2 is a vertical diametrical section through the same. Fig. 3 is a horizontal section taken in line with the slide which varies the capacity of the fuel pocket.

Fig. 4 is a vertical diametrical section similar to Fig. 2, showing a plurality of pockets and slides.

Tl'n carburetor contemplated in this invention comprises the two main members 1 and 2, both of said members being cylindrical in shape and concentric. the outer member 1 being stationary and the inner mel-nber 2 being adapted to turn within the outer member either with an oscillatory or complete rotary movement. Under the pre ferred embodiment of the invention, the inner member 2 is mounted on and carried by a rotary shaft 3 which, in a four-cycle engine, is driven at the same; speed as the cam shaft, so that a charge of fuel will be supplied by the carbureter to the combustion chamber of the motor once in each two revolutions of the engine shaft or once in each complete revolution of the cam shaft,

the fuel being supplied to the-combustion chamber just before'the time of ignition, and after the suction stroke of the "piston has filled the combustion chamber with air.

The inner member 2 is provided with a fuel pocket 4. extending transversely and, radially through the .same with respect tothe center of movement of said member, as illustrated in Fig. 3. This pocket, which may be of any size, is preferably rectangular in cross section, and within said pocket is mounted a slide 5, the outer end of which forms the inner wall of the fuel pocket, the slide 5 working with a snug sliding fit in said pocket.

The means for operating the slide 5, so as to vary the capacity and depth of the pocket 4 embodies a spindle 6 which forms an extension of the shaft 3, and turns therewith at the same speed. Mounted to slide lengthwise ofthe spindle 6 is a slide operating member or traveler 7. This traveler carries at one side ofthe spindle 6 a pin8 which passes through an inclined or oblique slot 9 in the slide 5, so that as the member 7 moves lengthwise of the spindle 6, the slide 5 is moved inwardly or outwardly, according to the direction of movement of the member 7.

At one end the member 7 is provided with a collar 10, to which are pivotally connected one set of arms 11 of a speed governor, embodying a second series of arms 12 and weights or balls 13 whichmove outwardly by centrifugal action, in accordance with the speed of rotation of the spindle 6, the arms 12 of the governor being pivotally connected, at 14, to the spindle 6, so that the arms 11, when the balls 13 move outwardly and inwardly, transmit motion to the collar 10, and therefore to the member 7, cans ing the latter in turn, through the medium of the pin 8 and slot 9, to draw the slide 5 inwardly or move the same outwardly.

The mechanism just above described operates automatically to shift the member 7 for Patented Aug. 11, 1914.;

correspondingly shifting the slide 5 and varying the. capacity of the pocket.

In some cases, it is important to be able to manually control the size of the pocket, and I, therefore, show means for accomplishing this, the said means embodying a ring 15 extending around the spindle (3 at one side of the member 7 said ring being connected to an operating stem 16 which extends through a central longitudinal bore in the spindle 6, and is provided atits outer end with a grooved collar 17 to which a suit.- able hand-controlled lever is coninrctcd. By operating this lever, the member 7 may be shifted along the. spindle 6, so as to correspondingly actuate the slide A. spring 18 bears against the collar 10 above re ferrcd to, said s ring acting to move the member 7 in such irection as to actuate the slide 5 outwardly for reducing the siZe of the Fuel pocket, When the speed of the spindle 6 is reduced.

The outer member 1 is provided with a fuelinlct or supply passage 19 inone side thereof, and adjacent thereto and in the same side thereof is a fuel overflow passage 20 which leads back to the fuel tank, from which fuel is fed to the supply passage 19, the said fuel supply tank and the necessary piping from the same to the member 1 not being shown. At the opposite side, the member 1 is provided with a pressure inlet passage 21, and a fuel outlet passage 2 arranged to be thrown into CUIIlmlHllCflilOli with each other, when the pocket 4- registers therewith. 1

In Fig. 3, the passages '19 and 20 are shown as arranged substantially opposite the p'assages 21 and 22, so that in the rotation of the member 2, the pocket 4 will at one time register with the passages 19 and 20 and receive a certain charge of fuel, and subsequently register with the passages 21 and 22 so that the said charge of fuel may be expelled from the pocket and carried into the combustion space of the motor. A supply of air under pressure from a suitable storage tank or air compressor is admitted. constantly to the passage 2.1, and, therefore, when the pocket 4 registers with the passages 21 and 22, the fuel is expelled from said pocket by air pressure, and thus carried positively in a predetermined quantity to the cylinder or CO'Il'lbliStiOn. space of the moto-r.' The fuel which is admitted to the pocket through the passage 19, after filling the pocket, overflows through the passage 20 back to the fuel tank. This insures filling the pocket with fuel and takes care of the surplus fuel, thereby insuring a complete filling of the pocket with fuel, irrespective of the position of the slide 5 which controls the size of the pocket.

It will, of course, be umlcrstood that while Ihave shown only one set of passages 19, 90,

21 and 22 adapted for use in connection with a single cylinder or combustion space, any number of sets of such passages may be provided, in accordance with the number of cylinders or ,:ombustion spaces, so that. in each complete revolution of the member 2, all of tho cylinders-will be supplied with charges of fuel, each combustion space getting its proper in'oportion of fuel. As the speed of the engine. increases, when extra load or duty is imposed thereon, the size of the fuel pir-ckcl. is automatically increased, thereby supplying the cylinders with a greater amount of fuel. This governor can be used to prevent an increase oi engine speed, for stationary and truck work.

in some cases, it is desirable, for the sake of cconoiny,t.c use more than one kind of t'uel, and in Fig. 4, l have illustrated the device as comprising two lnel pockets 4' and i". using, in connect ion therewith. two slides 5 and It is thought unnecessary to go into a Further [vscripticn ol the arrangement shown in Fig. l, as it. corresponds en'- aclly with the .-:.howing made in Figs. '1, 2 and I). etccpt that the slides and pockets are duplicated, and it will also be understood illat the number of passages t admit the fuel to the inner n'icinbcr and provide for GX- pelling'the 'lucl tht'xrclrom will be correspondingly duplicated.

The construction illustralcdin Fig. ten-- ables the motor to be ted with two kinds or grades of fuel such, for example, as kerosene, and acetylene or heigas.

The carburetcr hcrcinabove described will enable higher compression. to be obtained, without pro-ignition.

The construction is exceedingly simple. and renders it possible to use only one valve in the engine to perform the function of both the present inlet and exhaust valves. It also makes it. possible to thoroughly mix diil'ercnt fuels and to use gas as well as liquid for fuel. A perfect control of the rpiantity (it fuel is obtained, causing each cylinder to be supplied with exactly the same amount olf luol. lert'ect combustion is obtainable, and the carbiueler may be used without any danger of strangling or starving the engine at any speed, a common occurrence with the present type of lloat feed CHIlMll'UlZOl.

lt is believed that the carl'nireter of this invention will also sol ve the bacletiring and 1 re-i {n ition troubles now present in twocycle engines, and will also llill'EtlStB the cfliciency ot, revolving and ol her aeronautical molors. l urllwrmore, it will economize in the liuel consumption of all internal combustion engines, by reason of the fact that the fuel is practically measured for each and every cylinder. The ca rburctcr per .sc has no springs or weights and does not. depend upon suction. The operator may readily 1 pocket canbe rotated in such manner that 20 hat is claimed is:

passages with which said pocket is adapted to register subsequently to the registration first mentioned, and governor mechanism contained within said inner member for automatically varying the fuel holding ca- 35 pacity of said pocket 2. In a carbureter, outer and inner concentric cylindricalmembers, theouter member being stationary and the inner member being mounted to turn within the outer mem- 4p control the amount of fuel and the liability of thecarbureter being clogged'is reduced struction involved.

y using a separate. carburetor for each cylinder, it will be possible to introduce the fuel into the cylinder, or combustion cham ber without the aid of a compressed air tank. he inner member Cit overflow passages with which said pocket is I adapted, to register and also formed with 4% which said pocket is adapted to register subsequently' to the registration first mentioned, means for varying .the'fuel holding capacity of said fuel pocket, embodying a slide form- 50 n a carbureter outer and inner coning a wall of said pocket, and governor centric cylind ical members, the outer mem mechanism contained Within said inner er being stationary and the inner member member and operatively connected With said being mounted to turn wit in the outer slide for shifting the latter in said pocket. 5 "member, the I inner member being formed In testimony whereof I afiix my signature 56 with a fuel pocket in its external face, and lII PIGSGIICG of two witnesses. r the outer member being formed-with fuel HUGH D. PEASLEE. supply and overflow passages with which Witnesses: said pocket is adapted to register and also J. O. WALSH,

so as to receive pressure therefrom to eject the liquid or other fuel.

:30 formed with pressure inlet and fuel outlet 0. A. EDGECOMB.

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