US908764A - Carbureter for explosive-engines. - Google Patents

Description

L. P. POSNOT. UARBURBTER FOR EXPLOSIVE ENGINES. APPLICATION FILED SEPT. 1a, 1906.

Patented Jan. 5, 1909.

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grill/11511117511? 61 Route/13a L. P. FOSNOT. CARBURETER FOR EXPLOSIVE ENGINES.

APPLICATION FILED SEPT. 13, 1906.

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Patented Jan. 5, 1909.

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LoUIs'P. rosxor, or Ramiro. PENXSYULUIA. AsSlHNUR. n'i' .ursxi; ASb'lUIUU-JX'IS. 'ro

READING STAA'DARD L'UllPkX Y. A

CORPORATION OF PENNSYLVANIA.

CAR-BURETER, FOR 'EXPLOSIVE-ENGINES.

Specificationof Letters. Patent.

Patented Jan. 5, 1909.

Implication filed September 13, 1906. Serial No. 334,368.

To all whom it may concern.

Be it known that I, Loris P. Fosxo'r, a citizen of the United States, and a resident of the city ofReading, in the county of. Berks and State of Pennsylvania, have invented certain new and useful Improvements in Carburetors for Explosive-Engines, of which the following is a specification.

My invention relates particularly to carbureters adapted for motorcycle use, and it consists in certain improvements in construction hereinafter fully described in connec tion with the accompanying drawings and the novel features of which are specifically pointed out in the claims.

Figure 1 is a partly sectional elevation of a carbureter embodying my invention in preferred form, the section being taken on the line 11 of Figs. 2 and 4. Fig. 2 is a plan view of the same. Fig. 3 is a partly sectional elevation taken on the line 3-3 of Figs. 2 and 4. Fig. 4 is a sectional-plan view taken on the line 4-4 of Figs. 1 and 3. Fig. 5 indicates a modified construction in sectional elevation.

An ordinary spraying device for gasolene or other hydrocarbon liquid, is indicated at T 5, located in a central tube 6' of the carbureter and communicating through suitable conduits 7, 8, with a gasolene chamber 9. In the preferred construction shown this central tube 6 rises from a perforated or spoked plate lO-which screws into the lower end of the mixing chamber cylinder hereafter described, and it is loosely surrounded by a partition ring 11 carried by said plate 10. i This partition ring forms an annular outer air-chamber 12 and an annular inner air-chamber 13-both communicating with a lower air-inlet chamber 14 which is carried by a depending extension 15 of the central tube 6. i

The mixing chamber cylinder as shown is formed by a lowermain portion 20 and an upper outlet portion 21, the former of which is provided with a vertically movable cylindrical cutoff valve 22 in addition to the sprayer and partition ring 11 already mentioned, while the latter is providedwith a rotary cylindrical throttle valve 23 arranged to regulate the-volume of fuel gas discharged tlirough the side outlet 24 there-- from. The particular construction and co operative arrangement of these arts are as follows: The cyllndrical cut-o valve 22,

i which slidably fits in cylinder 20. has its lower circular edge 25 arranged to seat upon the cone-shaped top portion 26 of the partition ring 11 so as to cut oil theupward flow excepting as such additional supply of air is of fuel-gas discharged through the outlet 24 when the throttle valve 23 is opened for heavier work than the normal. This open off valve 22 is effected coincidently with the opening of the rotary throttle valve by valves. The throttle valve 23 is provided with a stem 31 secured to the valve head 32 and extending through a cap 33 on the mixing,,-chamber cylinder 21; the projecting stem having a handle 34 suitably fixed thereto for convenient handling by the operator. The central connecting rod 30 is fixedly attached at its lower end to the open head 36 .of the cylindrical cut-01f valve 22, and extends upward into the rotary throttle valve 23, with which it is operatively connected by means of a loose transverse pin 37 inserted in the hollow head 38 of the rod 30; the projecting ends of said pin being arranged in engagement with the oblique slots 39 formed in the cylindrical wall of the throttle valve 23, so that the rotary movement of the latter wall port 40 registering with the side outlet 24 from the mixing chamber. will correspondingly effect the lifting of the air cut-off valve 22. The latter is vertically guided in the cylinder 20 by means of a lateral projection 41 engaging a vertical wall slot 42. so as to be incapable of rotary movement.

The gasolene chamber 9. as shown, is an annular chamber surrounding the mixing cylinder 20 and formed integral therewith, the separately formed upper cylindrical por tion 21 being secured to the lower cylindrical portion 20 by means of a bolting flange 45 arranged to cover said gasolene chamber.

The supply of gasolene to the chamber 9 is controlled as usual by a needle valve 50. This valve as shown is mountedin a vertical conduit 51. connected to a supply tube 52 and comunicating at 53 with the chamber '9. To provide for nicely adjusting this valve its point is seated in a ring 54 which is adjustable vertically in a screw-threaded porof air through the outer annular passage 12 called for to provide the increased amounting movement of the vertically sliding cut-- i means of a central rod 30 connecting the two tion of the conduit 51, while the upper por--- required to properly increase the portion of tion of its stem is guided in a screw-cap'55 and its vertical lift is regulated by an adjusting screw 56- as indicated. To provide for the'automatic opening and closing of the valve' as required I employ a lever 60 piv- 'oted intermediately at 61 and having its short end 62 engaging the stem of the valve While its semi-circular inner portion is carried half way around the mixing cylinder and has its ends 63 arranged to contact with anannular float '64 in the gasolene chamber 9'so asto be lifted by the latter when said chainberis (properly-filled, and thereby closing thence le valve which is normally held open by said lever.

In the modified construction indicated in Fig. 5, the rotary throttle valve 70in the upper portion of the mixing cylinder, is

- Instead of locating the gasolenechamber around the mixin cylinder, it is in this case shown to one si e thereof and the needle valve mechanism described is located centrally in said chamber.

What I claim is 1. In a carbureter having a cylindrical mixingchamber with side outlet near one end thereof, and a central hydrocarbon inlet and an air inlet chamber surrounding the same at the other end, a hollow conical partition in said air-inlet chamber, a cylindrical air cut-0E valve in'said mixing chamber seating on said conical partition, and a separately formed and independently mounted throttle-valve for said outlet .operatively connected 'to said cut-01f valve substantially as set forth. R

2.. In a ca'rbureter having a cylindrical mixing chamber with side outlet near one end thereof, and a central hydrocarbon inletand an air inlet chamber surrounding the same at the other end, a li'ollow conical partition in said air-inlet chamber, a vertically movable cylindrical air cut-off valve in said chamber seating on said conical partition, and a rotary cylindrical throttle valve for said outlet operatively connected to said cut off valve substantially as set forth. 7

In testimony whereof, I aflix my" signature, in the presence of two witnesses.

'D. M. STEWART, W. G. STEWART.-

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