US2932495A - Mechanical carburetor - Google Patents

Description

April 12, 1960 G. OLSON 2,932,495

MECHANICAL CARBURETOR Filed Sept. 15, 1958 2 Sheets-Sheet 1 IN VENTOR.

BY6064 awn/v Wm ATTOE/VEY April 12, 1960 e. L. OLSON 2,932,495

MECHANICAL CARBURETOR Filed Sept. 15, 1958 2 Sheets-Sheet 2 United States Patent MECHANICAL CARBURETOR George L. Olson, Toms River, NJ. Application September 15, 1958, Serial No. 761,170

2 Claims. (Cl. 261-89) This invention relates to internal combustion engines and, more particularly, to a carburetor therefor.

Various attempts have been made to increase the chiciency of the fuel consumed by internal combustion engines. In some instances, it has been proposed to use a device for breaking up the fuel particles into extremely small size so as to more uniformly mix the air and fuel before it is supplied to the engine. However, such have lacked the desired degree of success in many ways. Accordingly, it is an object of the present invention to provide a mechanical carburetor for internal combustion engines that is extremely simple in construction, eflicient in operation, and which will provide increased power per unit of fuel.

Another object of the present invention is to provide a mechanical carburetor embodying a centrifugal fuel distributor that throws the fuel radially outwardly with such force as to divide the fuel into minute particles.

Still a further object of the present invention is to provide a mechanical carburetor of the type described that has a minimum number of moving parts, is readily serviced and maintained, and which can be installed in new and old models of internal combustion engines at a relatively low cost.

All of the foregoing and still further objects and advantages of this invention will become apparent from a study of the following specification, taken in connection with the accompanying drawing, wherein:

Figure l is a side elevational view of a mechanical carburetor made in accordance with the present invention in operative use;

Figure 2 is an enlarged top plan view of the structure shown in Figure 1; v

Figure 3 is a fragmentary side elevational view of certain parts of the apparatus shown in Figure l in an adjusted position;

Figure 4 is a fragmentary longitudinal cross sectional view of certain parts of the structure shown in Figure 1;

Figure 5 is an enlarged top plan view of a disc member forming a part of the present invention;

Figure 6 is an enlarged fragmentary plan view, with parts broken away, of certain parts of the structure shown in Figure 5;

Figure 7 is an enlarged longitudinal cross sectional view of still further parts of the device shown in Figure 5;

Figure 8 is an enlarged fragmentary cross sectional view of still other parts of the present invention;

Figure 9 is a fragmentary cross sectional view of still other parts of the present invention; and

Figure 10 is an enlarged fragmentary cross sectional view of certain parts of the structure shown in Figure 7.

Referring now to the drawing, and more particularly to Figures 1 to 4 thereof, a mechanical carburetor made in accordance with the present invention is shown to include an upwardly opening base member 16 having a mounting flange 18 at the lower end for connection to a similar mounting flange 20 carried by the intake manifold 22 of an internal combustion engine, such as by securement bolts 24. The housing also includes a top closure member 26 having a mounting flange 28 connected to the mounting flange 30 at the top of the base member 16, suchas by bolts 32. The top wall 34 supports a plurality of depending angle brackets 38, by means of bolts 36, which mounting brackets are integrally secured to the casing of an electric motor 40 which eX- tends into the interior of the housing. This motor 40 has a drive shaft 42 centrally secured to a disc assembly 44 which is mounted for rotation in a horizontal plane within the upper section of the base member 16.

As is more clearly shown in Figures 5 to 10, the disc 44 supports a pair of diametrically opposite upwardly extending vanes 46 and a concentric hollow segmental conical shell 48 that is secured thereto, such as by a continuous weld 50. A fuel supply line 52 extending through the outer wall of the base member 16 empties into the interior of the conical shell 48 which serves as a reservoir for supplying a continuous flow of fuel into an outwardly extending bore 54 through an inlet 56. The outer end of this bore 54 is closed by an end plug 62, but empties into an outlet duct 58 that extends into association with the outwardly concave surface 60 at the outermost extremity of each vane 46. It will thus be recognized that in response to energization of the motor 40, the disc 44 will be rotated at a high speed so as to discharge fuel from within the shell 48 outwardly through the discharge duct 58 so as to be thrown at high speeds centrifugally radially outwardly from the disc so as to enable the fuel to be broken into small particles for mixture with the air within the housing.

As is more clearly shown in Figures 1 to 3 of the drawing, a constant level float controlled reservoir 64 filled with fuel 66 is adjustably supported upon the housing by means of a pair of spaced apart parallel arms 70 pivotally secured at opposite ends, by means of pivot pins 72, 74 to brackets secured to both the reservoir 74 and base member 16. A length of flexible tubing 68 connects the outlet 69 of the reservoir 64 to the fuel supply line 52. Since this reservoir is gravity operated, the quantity of flow can be adjusted by adjusting the height of the reservoir relative to the disc 44. Thus, in the position shown in Figure 3, a greater fuel flow will be supplied to the disc 44 than in the position shown in Figure 1.

The top plate 34 of the closure member 26 is also provided with a plurality of circumferentially spaced apart air inlet openings 76 that may be adjusted by the position of the outer ends of a cross arm plate 78 that may be adjusted by a handle 82. In the maximum open position illustrated in Figure 2 of the drawing, a maximum quantity of air will be supplied to the interior of the housing, while the handle 82 can be rotated to restrict the amount of air entering into contact with the fuel being centn'fugally discharged by the disc 44. This cross arm plate 78 is pivotally supported upon the top wall 34 of the closure 26 by means of a centrally located pivot bolt 80.

While this invention has been described with particular reference to the construction shown in the drawing, it is to be understood that such is not to be construed as imparting limitations upon the invention, which is best defined by the claims appended hereto.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A mechanical carburetor comprising, in combination, a rigid housing, a centrifugal fuel distributor supported within said housing, gravity fuel feed means carried by said housing and communicating with said distributor, air inlet control means communicating with the interior of said housing, said housing comprising an upwardly opening base member having a downwardly opening throatfor conncti o'n to an intalie manifold, a top closure member connected to the top of .said base, said centrifugal fuel distributor comprising a motor supported Within said top closure member having a drive shaft extending into 'saidbase member, a disc secured to said drive shaft of said motor, ducts extending-outwardly through said disc secured to said drive shaft, said fuel feed means supplying fuel to the inner end of said outwardly extending ducts, and vanes carried by said disc adjacent to the outer end of said ducts'for directing fuel radially outwardly therefrom in response to energization of said motor, said fuel feed means comprising a supply line extending through said b asemember in overlying relationship with said-disc, a hollow segmental conical shell secured to the top of said disc defining a reservoir in communication with said inner end of saidducts and said supply line empting into the interior of said shell,

aid ine t eed mea -1 s mian; a, mum eve wsupported upon said housing ali ove th' level of'said .disc, .and a .flexible tube connected between said supply line and said constant level reservoir.

2. A mechanical carburetor as set forth in claim 1, further comprising a pair of vertically spaced apart parallel arms pivotally connected at opposite ends to said reservoir and said housing adjustably supporting said reservoir upon said housing.

References Cited in the file of this patent UNlT-ED STATES PATENTS

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