US1142763A - Carbureter. - Google Patents

Description

F. PERRY.

CARBURETER.

nrucmou HLED AUG.3I| 1914.

1,142,763. Patented June a, 1915.

, WITNESSES: 1N VEN TOR.

A TZORNEY.

FRANK PERRY, QF FRESNO, CALIFORNIA.

Specification of Letters Patent.

Patented June 8, 1915.

' Application filed August 31, 1914. Serial No. 859,415.

T all vi /10m it may concern:

Be it known that I, FRANK PERRY, a citi zen of the United States, and a resident of the city of Fresno, county of Fresno, and State of California, have invented a new and useful Improvement in Carburetors for Internal-Combustion Engines, of which the following is a specificationj My invention relates to a new and improved means foratomizing the liquid fuel used in internal combustion engines and mixing it with the air, whereby a more combustible mixture is obtained than that produced by'the carbureters heretofore in use.

In the ,drawings which accompany this specification, and which is hereby made a part hereof, Figure 1 is a side sectional view of the carburetor complete. Fig. 2 is a perspective view of 'the shutter showin the atomizer in the relative position it is p aced when the carbu'reter is assembled. Fig. 3 is an end view of the cap which covers the ends of the throttle chamber. Fig. 4 shows one form of the outer tube of the atomizer. Fig. 5 shows another form of the outer tube '--of the atomizer. Fig. 6 is the inner tube of having a bearing 18 in the center thereof ta the atomizer.

In said drawings A is a float chamber which is adapted to contain liquid fuel.

13 is the fuel intake, and 2 the float.

17 is a valve which cuts ofl the inflow of gasolene when the liquid fuel in the chamber rises to a predetermined height in the float chamber. V

B is the throttle chamber which is tubular in form and has an air intake 10.

D is the mixing chamber attached to the throttle chamber B with an opening 12 between them. I

7 is an end cap which is constructed tofit snugly over the ends of throttle chamber B,

permit axle 9 to pass throughi C is the shutter which is constructed in the form of a lateral section of a tube having one of the edges thereof cut diagonally,

which said shutter fits turnably within the throttle chamber, and having a member 19 ,in the formof a segment of a circle at each cession.

E is the atomizer which consists of an inner tube 4, constructed with a lateral slot 20 therein which when the carbureter is assembled is on the upper side and opens into the mixing chamberD. Ihner tube 4 is held In a rigid position, and when assembled is closed at both ends, and has a lead?) constructed to transmit liquid fuel from the float chamber to the inside of such inner tube 4. I I i tube 5 on said inner tube 4. Outer tube 5 is open at both ends and has lateral rows of holes 17, 22 and 23 therein. All of the holes in any one row are of approximately the same size, but each row of holes is of a different size. In mv construction I prefer to have such rows of holes decrease in suc- In assembling the carbureterthe relation of inner tube 4 and outer tube 5 should be such that by moving lever 15 either one of such rows of holes 17. 22. or 23, willregister with lateral slot 20., Fig.6 shows a modified form of outer tube 5. the

difference between the two be ng that instead of a-pluralitv of rows of holes 17 '22 and 23, there is substituted triangular in-' .chamber. When throttle C is partly c osed a part of such rows of holes iscovered, as the shutter is placed within the throttle chamber so the oblique edge is adjacent'to the opening 12. The obiect of this construction is to decrease the flow of liquid fuel when the supply of'air is decreased by one movement of the shutter C. As the holes in the outer tube 5 and the slot 20 in inner tube 4 are very small, the fuel is drawn through it only by suction, and when the shutter C simply covers the holes the suction is prevented and.the fuel will not flow except from those holes which are registered with the slot2O and which are uncovered.

I claim as my invention and desire Letters Patent upon:

1. In a carburetor, the combination of a. float chamber constructed to hold liquid fuel, an inlet to such float chamber, a mixing chamber having an outlet openmgflz tothe openingbetween. the. throttle chamber and the mixing chamber, with 'the slo.t'therein opening toward such mixing chamber, a lead from; the float chamber to such inner tube constructed'to 'c'arry'liq'uid fuel from such float chamber'to such inner tube, and an outer tube constructed to fit over such inner tube, and having a plurality of holes therein, hand means for turning such outer.

tube to bring a-series of'hole's to register with the slot in the inner tube, said atomizer being placed in such relation to the shutter that in partiallyclosing the opening between thethrottle chamber and the mixing chamber a wortion of such holes is covered with theshutter, and an Opening into such throt tle chamber to admit air therein, all substantially as described;

2. In a carbureter, the combination of a float chamber, an inlet to'such float chamher, a throttlechamber, an inletrto such throttlenchamber constructed to admit air into such throttle chamber, a mixing chamber, an opening between-such throttle chamand mixin chamber, a shutter within "such'throttle chamber constructed to-regulate'the size'of the string between the throttle chamber and t e mixing chamber, hand means for regulatin'gsuch shutter, an

atomizer consisting of andnner tube hav 4-0 ing'th'e' ends thereof closedhnd aslot therein located within such throttle chamber within the opening between the throttle chamber and the mixing chamber and just under the path of such shiltter, and with the slot openingjoward such mixingv chamber, an outer tube constructed to fit over such inner tube and to be rotated by hand means, having a series of triangular holes -in a lateral row through the wall of such form and having the ends thereof closed, an

air inlet to such throttle chamber, a mixing chamber, an opening between such throttle chamber and mixing chamber, a shutter Wltl'llllySllCll throttle chamber consisting of a lateral section of a tube adapted to fit under it so in shutting off the opening between the throttle chamber and the mixing chamber a portion of such openings in such atomizer are closed, a lead from such floatchamber to such atomizer, all substantifally as described.

4. In a carbure'ter, the combination of a float chamber, an inlet to such float chamber, a mixing chamber having an outlet opening,

a throttle chamber tubular in form and ha in an o enin therein for takin air, and

a connection opening into such mixing chamber, a rotary shutter within such throttle chamber'constructed to regulate thesize of the opening between the throttle chamber and the mixing chamber, an atomizer within such throttle chamber just under the path of'such rotary shutter and within line ,of the opening between the throttlechamber and the mixing chamber, such atomizer consisting of an' inner tube closed at both ends and having a lateral slot therein opening toward such opening between the throttle chamber and the mixing chamber, and. an

- outer tube constructed to fit over such in- 'shuttle, an atomizer having openings to' ward such mixing chamber and located within the path of such shutter and directly ner'tube, and having a plurality of lateral 7 rows of holes through the wall of such outer tube, all of the holes in each row being approximately-uniform in size, andthe size of the holes of eachvrow being of a different size, decreasing with each successive row,

7 such rows of holes being far enough apart so but one r0, can register with the slot in 'such' inner tube at one time, and means for rotating such outer tube to bring either of such rows of holes to register with the slot 7 in such inner tube, all substantially as de' scribed.

' FRANK PER-RY Witnesses WALTER SORENSEN, A. WV. CARLSON.

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