US1198789A - Carbureter. - Google Patents

Description

O. TEED.

CARBURETER.

7 APPLICATION FILED OCT. 19, 1915- 7 1,198,789. Patentedsept. 19,1916.

flg 0 OREN TEED, OF LOS ANGELES, CALIFORNIA.

CARBURETER.

Specification of Letters Patent.

Patented Sept. 19, 1916.

Application filed October 19, 1915. Serial No. 56,804.

To all whom it may concern.

Be it known that I, Oman Tenn, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles, State of California, have invented new and useful Improvements in Carbureters, of which the following is a specification.

This invention relates to carbureters for internal combustion engines and the like; and it is an object of this invention to produce a simple, inexpensive, easily adjusted and easily operated carbureter which will produce at all times an efiicient and proper mixture of combustible vapor and air.

The various features of my invention are set forth in the following specification, wherein I describe a preferred form of my invention, reference being had to the accompanying drawings, in which, for the purpose of this specification, I illustrate a pre ferred form of my invention.

In these drawings Figure 1 is a vertical section taken as indicated byline 11 on Fig. 2, Fig. 2 is a vertical section taken as indicated by line 22 on Fig. 1, Fig. 3 is a side elevation of the carbureter, corresponding in aspect to Fig. 1, Fig. 4 is a section taken as indicated by line 4--4 on Fig. 1, and Fig. 5 is a section taken as indicated by line 5-5 on Fig. 1.

In the drawings I have illustrated a suitable body 10 which includes a liquid fuel chamber 11, a heating jacket 12 and a preferably cylindrical valve chamber 13. This valve chamber 13 is open below to the air passage 14 into which air is admitted from atmosphere through the two passages 15 and 16. The passage 15 isv left open at all times and is of such size as to properly supply the minimum quantity of air desired, while the passage 16 is controlled by a suitable valve 17 so as to control the supply of air in excess of that supplied through the passage 17.

A cylindrical valve 17 fits in the cylindrical valve chamber 13 and has a port 18 adapted to register with the upper opening or port 19 of the cylindrical valve chamber, and has a port 20 adapted to register with the lower opening of the cylindrical valve chamber. This cylindrical valve is preferably made in the form of a shell which is carried on a head 21 at one end, being screw threaded upon this head, and carried upon another head 22 at the opposite end. These heads are mounted on opposite ends of an inner sleeve 23 which not only performs the service of a hub for the valve, but also performs service as a liquid or fuel control valve, as will be herelnafter pointed out.

On the outer side of the head 21 provision may be made for securing an operating arm 25. To hold the whole cylindrical valve in place longitudinally in the casing'I may employ a disk 26 held in place by two screws 27 and this disk may have a slot 28 in which a pin or equivalent member 29 rides, the pin being mounted in the arm 25, and thus limitmg the movement of the arm 25 and the valve 17. One edge of the chamber port 13.), shown at 30, is arranged diagonally, so that this port may be gradually opened by the turning of the valve 17 in the direction inclicated by the arrows in various views.

The liquid fuel is held in a suitable cham ber 11 and a float 42 operates a valve 43 to control the height of the liquid. I do not specifically describe the float and valve mechanism for the reason that I do not wish to limit myself to the specific form shown. I may say, however, that the cover 44 may be held in place by any suitable means, and the cover will carry with it float 42 and the valve 43 when lifted off the chamber 11. A liquid fuel port 44 leads from the fuel chamber to a small chamber 45 situated at one end of the casing, as is best shown in Figs. 2 and 5. The chamber 45 is in effect an annular chamber surrounding one end of a nozzle tube 46. This tube is a part of the liquid fuel nozzle and it extends longitudinally through the sleeve 23, hereinbefore described. Access of liquid from the annular chamber 45 to the interior of the tube 46 is had through a suitable port 47. The tube 46 is locked in a certain set position by the lock nut 48 at one end. In this position the tubes 49 which form the small or capillary outlets from the interior of the tube 46 are in a vertical position. The tubes .49 perform merely the ofiice of providing small or capillary outlets for the liquid from the tube 46; and they are spaced longitudinally along the tube 46, being preferably spaced closer'together at one end than at the other. The sleeve 23 has a port 50 which is adapted topass over the capillary tubes 49 when the sleeve 23 is rotated in the direction indicated; and this port 50 has a diagonal edge 51 so that the capillary tubes 49 are successively uncovered, and are not uncovered all at one time. By proper spacing and arranging of the tubes 49 alongthe tube 46, and by making the angle of the edge 51 the proper angle, the rate of opening of the fuel supply may be controlled as desired. It will be noted that as the air control valve is turned to open the air passage through the carbureter, the capillary tubes %9 are successively uncovered until, when the air supply is completely open, all the capillary tubes are uncovered and the maximum amount of liquid fuel is supplied.

At one end of the cylindricalJvalve chamher and of the cylindrical valve 17 1 provide a by-passage 60; and a single capillary tube 49 is situated in this lay-passage. This by-passage is designed to pass the minimum amount of air required to operate an engine at minimum speed, when the valve 17 is entirely closed; and the section of the bypassage 60 may be adjustably restricted by two screws 61 and 62, one above and the other below the nozzle tube l6. Adjustment with the screw controls the amount of air which can be drawn through the bypassage 60 and adjustment with screw 61 controls the amount of suction applied to the capillary fuel tube 49; so that, by suitable adjustment of these two screws, the amount of mixture and the quality thereof may be adjusted to supply the necessary minimum amount for any engine.

The body of the carbureter contains the heating jacket 12 with inlet and outlet 71. The inlet 70 is controlled by a suitable valve 72 provided with an operating arm 73 movable through the medium of, say, a Bowden wire from the steering wheel of an automobile. The inlet 70 of the jacket may be connected with the exhaust manifold of the engine by any suitable means, as by a flexible tube, and the amount (gf hot gases admitted through the jacket will be controlled through the valve 72. When start ing the carbureter the valve 72 may be wholly or partially open, so that the fuel passing through the port 44, which port is in close proximity to the jacket 12 as shown in Fig. 5, will be initially heated by the jacket prior to its admission to the fuel nozzle. And the fuel is thus rendered more easily vaporizable. After the engine is started and is well warmed up, the valve 72 may be regulated desired and may be completely closed.

Having described a preferred form of my invention, I claim:

1. A carbureter, embodying a fuel nozzle having a plurality of linearly spaced small openings, a rotary air valve surrounding the nozzle and adapted to control passage of air past the openings, and a rotary fuel control valve within the air valve and immediately surrounding the nozzle, said fuel control valve being connected with the air valve to move therewith.

2. A carbureter, embodying a fuel nozzle having a plurality of linearly spaced small openings, a rotary air valve surrounding the nozzle and adapted to control passage of air past the openings, and a rotary fuel control valve within the air valve and immediately surrounding the nozzle, said fuel control valve being connected with the air valve to move therewith, and having a diagonal nozzle cut off edge adapted to progressively cover or uncover the linearly spaced openings as the *alve is rotated.

3. A carbureter, embodying a fuel nozzle comprising a cylindrical tube having a plurality oflongitudinally spaced fucl openings through its wall, a rotary fuel control valve in'nncdiately surrounding the cylindrical tube, and means cooperative with the fuel control valve to control passage of air past the fuel nozzle, said means embodying a cylindrical rotary valve concentric with the fuel nozzle.

4. A earbureter, embodying a fuel nozzle comprising a cylindrical tube having a. plurality of longitudinally spaced fuel openings through its wall, a rotary fuel control valve immediately surrounding the cylindrical tube, and means cooperative with the fuel control valve to control passage of air past the fuel nozzle, embodying a rotary valve directly connected to and concentric with the rotary fuel control valve.

A carbureter, embodying a suitable body having therein a. cylindrical valve chamber with opposite ports, a rotatable cylindrical air valve therein with ports adapted to register with the chamber ports, a fuel nozzle embodying a cylindrical tube axially located in the valve chamber and having a. plurality of axially spaced fuel openings through its wall, and a rotatable fuel control valve 'mmediately surrounding the cylindrical t be and connected with the air valve to move therewith.

6. A carburetor, embodying a suitable body having therein a cylindrical valve chamber with opposite ports, a cylindrical air valve therein with ports adapted to register with the chamber ports, one of said chamber ports and a valve port having relatively diagonal edges, :1. fuel nozzle embodying a cylindrical tube axially located in the valve chamber and having a plurality of axially spaced fuel openings through its wall, and a fuel control valve immediatelyister with the chamber ports, a fuel nozzle embodying a cylindrical tube axially located in the valve chamber and having a plurality of axially spaced fuel openings through its wall, and a fuel control valve immediately surrounding the cylindrical tube and connected with the air valve to move therewith, the body also having a by-passage leading around one end of the valve chamber and the nozzle tube having a fuel opening in said by-passage, and means to adjustably restrict the lay-passage.

S. A carbureter, embodying a suitable body having therein a cylindrical valve chamberwvith opposite ports, a cylindrical air valve therein with ports adapted to register with the chamber ports, a fuel nozzle embodying acylindrical tube axially located in the valve chamber and having a plurality of axially spaced fuel openings through its wall, and' a fuel control valve immediately surrounding the cylindrical tube and connected with the air valve to move therewith,

the body having a b y-passage leading around one end of the valve chamber and a nozzle tube having a fuel opening in said bypassage, and means to adjustably restrict the by-passage both above and below the nozzle tube.

9. A carbureter, embodying a suitable body having therein a cylindrical valve chamber with opposite ports, a cylindrical air valve therein with ports adapted to register with the chamber ports, a fuel nozzle embodying a cylindrical tube axially located in the valve chamber and having a plurality of axially spaced fuel openings through its wall, and a fuel control valve immediately surrounding the cylindrical tube and connected with the air valve to move therewith,

the body having a heating jacket surrounding the valve chamber, and having a fuel admission port to the nozzle tube in proximity to the heating jacket so that the fuel is initially heated on its passage to the nozzle.

10. A carbureter, embodying a suitable body having therein a cylindrical valve chamber with ports in its opposite cylindrical walls, a rotatable cylindrical air valve therein with ports adapted to register with the chamber ports, a,fuel nozzle concentrically and axially disposed in said valve and valve chamber and having fuel openings in its cylindrical face, and a rotatable fuel control valve cooperating with the fuel nozzle and concentric with the valve and valve chamber.

11. A carbureter embodying asuitable body having therein a cylindrical valve chamber with ports in its opposite cylindrical walls, a rotatable cylindrical air valve therein with ports adapted to register with the chamber ports, a cylindrical fuel nozzle disposed in an axial direction within the air valve and valve chamber and having fuel openings in its cylindrical wall on one side directed toward one of the ports in the valve chamber, and a cylindrical rotatable fuel valve cooperating with the fuel nozzle and connected with the air valve to rotate therewith.

In witness that I claim the foregoing I have hereunto subscribed my name this 8th day of October, 1915.

O REN TEED.

lVitnesses JAMEs T. BARKELEW, ELwoon H. BARKELEW.

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