US1276169A - Carbureter. - Google Patents

Description

E. G. BUCHMANN.

CARBURETER.

APPLICATION FILED MAY 3. 1911.

1,276, 1 69 Patented Aug. 20, 1918.

lltl tit) EDWARD e. euenmnmv, or iurnwnumn, WISCONSIN.

CARB'URIETER.

Application filed May 3, 1917.

To all whom it may concern Be it known that I, EDWARD G. BUCH- ZMANN, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Carburetors; and I do hereby de ,clare that the following is a full, clear, and

provision of a carbureter having situated intermediate its float chamber and vaporizing chamber an electrical heating unit for heating the liquid fuel as it passes into the carbureting chamber.

A further object of my invention is the provision of a carbureter so equipped with an electrical heating unit which will be of exceedingly simple construction and inexpensive to manufacture.

lVith the above and other objects in View which will appear as thedescription proceeds, my invention resides in the novel combination, construction and arrangement of parts, as hereinafter described and more particularly defined by the appended claim, it being understood that such changes in the precise embodiment of the invention herein disclosed may be made as come within the scope of the claim.

In the accompanying drawings, a single view, part in section and part in elevation, is shown illustrating a carburetor constructed in accordance with and embodying the principles of my invention as now devised for the practical application of my invention. I

In the drawings, 1 represents the float chamber of a carbureter, having therein a float 2 and a feed supply pipe 3 in communication therewith, anda carbureting chamber 4 having suitable air intake openings 5 therein, an injector 6, a needle valve 7 and a butterfly valve 8, all of conventional construction.

The float chamber is spaced a short distance from the carbureting chamber and is connected thereto by my invention. Said invention includes a fuel passage pipe 9 formed integrally with one wall of the float chamber and extending laterally therefrom Specification of Letters Patent.

Patented Aug. 20, 1918.

Serial No. 166,098.

through an opening in the adjacent wall of the carbureting chamber, and means surrounding the fuel passage pipe to heat the fuel as it passes therethrough. Surrounding the pip 9 is a plurality of electrical heating coils 10 which are embedded in suitable insulating material 11 of any desired composition, said coils being supplied with electricity through the terminals or binding posts 12.

The heating coils and the insulating material surrounding the same are considerably shorter than the length of the pipe 9 and are disposed adjacent the connection of the latter with the float chamber. These coils and their insulation are adapted to be protected by a tubular casing or sleeve 13 which is formed integrally with one wall of the carbureting chamber surrounding the opening therein. This sleeve is of sufiicient diameter to receive said insulated coils and is of approximately the samelength as the latter so that when the parts are assembled the free end of said sleeve will engage the wall of the float chamber to which it is secured.

In assembling the herein described parts the heating coils 10 are disposed about the pipe 9 and the insulating material molded or otherwise disposed as shown in the drawing.

The carbureting chamber is then moved to engage its opening with the end portion of the pipe 9 which slides into the interior of said chamber until the wall of the latter engages the outer end of the insulated coils. This movement also disposes the sleeve 13 around the coils and their insulation, after which the float chamber and sleeve may be secured together. Finally the injector 6 and the needle valve 7 are disposed in the end of the pipe 9 within the carbureting chamber.

In most of thepresent carburetors, it is necessary to use ahighly volatile oil such as gasolene or the like, but with my invention, the heavier volatile oils may be used as in the passage of the oil from the float chamber to the carbureting the oils are heated and thus readily vaporized.

What is claimed it:

A carburetor comprising, in combination, a fuel supply pipe, a float chamber communicating therewith, a carbureting chamber having an opening in one wall, a fuel passage ipe formed integrally with one wall of the oat chamber and projecting laterally, said pipe being extended into the carbureting chamber through the opening therein, an

insulating acket surrounding the portion of said pipe adjacent its connection with the float chamber, a plurality of electrical heating coils embedded in said insulating material, a sleeve of greater diameter and shorter length than the pipe formed inte grally with the carbureting chamber around the opening therein and projecting laterally from one wall thereof, sald sleeve bein disposed around said insulating material and coils by being slid thereover simultaneously with the engagement of the free end portion of the fuel passage pipe with the opening in the carbureting chamber, the free end of said sleeve being disposed in abutting engagement with the wall of the float chamber and secured thereto, and a valve controlled spray means carried by the end of said pipe Within said carbureting chamber.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Wisconsin.

EDWARD G. BUCHMANN.

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