US1193834A - Jesse c - Google Patents

Description

J. C. SIMMONS.

CARBURETER.

APPLICATION FILED MAR. 12. 1915.

Patented Aug. 8, 1916.

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INVENTOR Jesse 6. Sim/710175 A TTOR/VEYS J. C. SIMMONS.

CARBURETER.

APPLICATION FILED MAR. 8. 1915.

1 ,1 93,834. Patented Aug. 8, 1916.

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FE. III- WITNESSES. INVENTOR W770 Jesse 6, Sun/vans Wm WM ATTORNEYS ED SA il lAiiE OFFICE.

JESSE C. SIMMONS, OF SHELBY, MICHIGAN, ASSIGNOR OF ONE-HALF TO ALLEN B. WAY, OF GRAND RAPIDS, MICHIGAN.

' CARBURETER.

Application filed March 8, 1915.

To all whom it may concern:

Be it known that I, JEssE C. SIMMONS, a citizen of the United States, residing at Shelby, county of Oceana, and 'State of Michigan, have invented certain new and useful Improvements in Carbureters for Internal-Combustion Engines, of which the following is a specification.

This invention relates to improvements in carbureters for internal combustion engines.

The objects of this invention are: First, to provide, in a carbureter, improved regulating means by which the mixture may be kept more uniform. Second, to provide an improved construction of carbureter in which the parts are rendered more accessible for the purpose of renewal and cleaning.

Further objects, and objects relating to details and economies of construction and operation will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure constituting a preferred embodiment of my invention is illustrated in the accompanying drawing forming a part of this specification, in which:

Figure I is a top plan view of a carbureter embodying my invention. Fig. II is a view in side elevation. Fig. III is an enlarged vertical sectional view on the line 3-3 of Fig. I. Fig. IV is an enlarged detail sectional view on the line 14 of Fig. III, showing in detail my improved regulating means. Fig. V is a detail sectional view on the line 5-5 of Fig. IV. Fig. VI is a detail perspective view of the regulating sleeve 31. Fig. VII is a detail sectional plan view on the irregular line 7-7 of Fig. III.

In the drawings, similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Considering the numbered parts of the drawing, the body 1 of the carbureter has Specification of Letters Patent.

Patented Aug. 8, 1916.

Serial No. 12,879.

formed therein an oil reservoir 11, an air chamber 21 and a carbureting chamber 21, the air chamber 21 communicating with an air inlet 2 in which is mounted a butterfly valve 3 for controlling the entrance of air. The explosive mixture or gas passes out through the passage 40 in which is disposed the butterfly valve 5. The top of the reservoir 11 is closed by the head 7 having screw threaded engagement with the body of the carbureter. Fuel is supplied through the supply pipe 6, which is threaded into said head 7, communicating with the sleeve 8 threaded into the head and provided with a passage therethrough. A float 12 is disposed in the reservoir 11 and carries a spindle 13 which projects below into a bore 15 formed in the base of the carbureter for guiding and supporting said spindle. Said spindle projects above the float and is fixed to a needle valve 14 which extends upwardly into and is slidably mounted in the head 7. This needle valve 14 carries a point 10 which engages the valve seat 9 at the lower end of the sleeve 8 to close the same. Grooves 10' are provided in the side of the needle valve 1 1 by means of which when the valve drops down the fuel flows through said grooves into the reservoir 11. It will thus be seen that the fuel supply is governed by the float 12, the rise and fall of which closes and opens the valve 9. A pet cook 16 is provided for draining the fuel from the reservoir 11. The float chamber and feed means are shown in preferred form and other effective means may be substituted. A post 19 is mounted in the body of the carbureter and extends upwardly in said carbureting chamber 21*, being provided with a mushroom head 20 and with a longitudinally extending bore 39. A plug 24 is threaded into the upper part of said bore 39, as shown in Fig. III, said plug being provided with a central passage 26 and transversely extending passages 27, as clearly shown in Figs. III and V. The transversely extending passages 27 are brought into alinement with the transversely extending passages 27 in the post 19.

The needle valve 22 which is threaded in a stuffing box 23 carried by the bottom of the carbureter extends upwardly within the bore 39 of the post 19, as shown in Fig. III. The point 25 of said needle valve engages the lower end of the longitudinally extending passage 26 in the plug 24 to close the same. The diameter of the upper portion of the valve stem 22 is less than that of the bore 39 so that a passage is left between the walls of said bore and said valve stem. A passage 17 connects the bottom of the fuel reservoir 11 with a chamber 18 through which the valve stem 22 passes. The fuel is forced by the pressure of the fuel in the reservoir 11 through said passage 17 and chamber 18 and upwardly in the bore 39, thence through the passage 26 and transversely extending passages 27 and 27 to the exterior of the post 19.

A sleeve 30 has a drive fit on the lower part of the post 19, as shown in Figs. III and IV. An annular groove 28 is formed in said post 19 at a point where the passages 27 terminate. The post 19 is slightly reduced in diameter above said groove, as at 29, so that there is a slight clearance between the Wall of the sleeve 30 and the portion 29 of the post 19. The top of the sleeve 30 extends upwardly so that there is about the same clearance between it and the mushroom head 20 of the post 19. The carbureting chamber 21 has a contracted air intake portion formed by the rib 33. The regulating sleeve 31 having at its upper end an angularly extending flange 32 is disposed in said contracted intake portion of the carbureting chamber 21 with said flange normally resting upon and supported by the projecting rib 33. The regulating sleeve 31 is provided with inwardly extending ribs 34 which engage the sleeve 30 on post 19 in order to properly center and guide the regulating sleeve 31.

The head 4 containing the discharge passage 40 is secured to the top of the carburcter body over the carbureting chamber by means of the screws 38, said head being provided with a curved annular groove 36 in its lower surface. The wall of the discharge passage has a downwardly projecting flange 37, as clearly shown in Fig. III.

From the description of the parts given above, the operation of my device should be very readily understood. Fuel is admitted from the fuel reservoir 11 through the passage 17 and past the needle valve 25 into the longitudinal passage 26 and the transverse passages 27 and 27, said fuel oozing out between the top of the sleeve 30 and the portion 29 of the post 19. The fuel is forced out in a thin film and the air which enters at 2 rushes up between the sleeve 30 and the regulating sleeve 31 and, acting upon said film of oil, vaporizes the same and the mixture passes out through the discharge passage. When the engine has been started and demands more gas there is apt to be too much fuel sucked in through the fuel supply in proportion to the air which is admitted to vaporize the same with the result that too rich a mixture will be formed. To prevent this I have provided the regulating sleeve 31 which rests lightly upon the rib 33 and when the suction increases as more gas is demanded, said regulating sleeve 31 will be lifted by the entering air so as to permit air to pass up around the outside of said sleeve 31 so that the mixture is diluted with this fresh air which has not come into so intimate a contact with the film of fuel. Any particles of oil which are carried up without being vaporized will be caught by the groove 36 in the lower surface of the head 4 so that the oil will either be completely vaporized or returned into the lower part of the carbureting chamber where it will be met by the air rushing upwardly and thus completely vaporized.

The supply of fuel can be regulated by means of the needle valve 22. The entrance of fuel to reservoir 11 is automatically controlled by the float 12. The rise and fall of said float automatically closes 0r opens the valve 9 to control the supply of fuel to the fuel reservoir 11. The parts of this valve are easily removable by removing the head 7 and are easily accessible for purposes of cleaning and renewal.

I am aware that the particular embodiment of my invention which I have here shown is susceptible of considerable variation without departing from the spirit of my invention and, therefore, I do not wish to be restricted to the same. I have found, however, that this form is tobe preferred and, therefore, I desire to claim the same specifically, as well as broadly, as indicated by my appended claims.

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

1. In a carbureter, the combination of a carburetor body having a fuel reservoir and a carbureting chamber, the wall of said carbureter chamber being provided with an annularly projecting rib forming an air intake contracted portion; a post disposed within said carbureting chamber and having a mushroom head and a bore extending longitudinally thereof; a plug threaded into the upper portion of said bore and provided with transverse passages and a longitudinal passage communicating with said transverse passages; a needle valve stem adjustably carried by said carbureter body and extending into the bore of said post, said valve stem being of smaller diameter than said bore, the upper end of said valve stem engaging the lower end of said plug to close the central passage therein, said post being provided with transverse passages in line with the transverse passages of said block; an annular groove in which said passages terminate and a reduced portion above said groove; a sleeve on said post the upper end of said sleeve being spaced slightly from said reduced portion and said mushroom head; a regulating sleeve surrounding said post and having an angularly extending flange resting on the rib of said carbureter wall; ribs extending from the inner wall of said regulating sleeve and engaging the sleeve on said post to guide and support the regulating sleeve; connections from said fuel reservoir to the longitudinal bore in said post; and a head closing the top of said carbureting chamber and having a discharge passage, the wall of said discharge passage terminating in a downwardly extending flange, the lower surface of said head being provided with an annular groove disposed above said carbureting chamber.

2. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber, the wall of said carbureter chamber being provided with an an nularly projecting rib forming an air intake contracted portion; a post disposed within said carbureting chamber and having a mushroom head and a bore extending longitudinally thereof; a plug threaded into the upper portion of said bore and provided with transverse passages and a longitudinal passage communicating with said transverse passages; a needle valve stem adjustably carried by said carbureter body and extending into the bore of said post, said valve stem being of smaller diameter than said bore, the upper end of said valve stem engaging the lower end of said plug to close the central passage therein, said post being provided with transverse passages in line with the transverse passages of said block; an annular groove in which said passages terminate and a reduced portion above said groove; a sleeve on said post, the upper end of said sleeve being spaced slightly from said reduced portion and said mushroom head; a regulating sleeve surrounding said post and having an angularly extending flange resting on the rib of said carbureter wall; ribs extending from the inner wall of said regulating sleeve and engaging the sleeve on said post to guide and support the regulating sleeve; connections from said fuel reservoir to the longitudinal bore in said post; and a head closing the top of said carbureting chamber and having a discharge passage, the lower surface of said head being provided with an annular groove disposed above said carbureting chamber.

3. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber, the wall of said car bureting chamber being provided with an annularly pro ecting rib forming an air intake contracted portion; a post disposed within said carbureting chamber and having a mushroom head and a bore extending longitudinally thereof; a plug threaded into the upper portion of said bore and provided with transverse passages and a longitudinal passage communicating with said transverse passages; a needle valve stem adjustably carried by said carbureter body, and extending into the bore of said post, said valve stem being of smaller diameter than said bore, the upper end of said valve stem engaging the lower end of said plug to close the central passage therein, said post being provided with transverse passages in line with the transverse passages of said block; an annular groove in which said passages terminate and a reduced portion above said groove; a sleeve on said post, the upper end of said sleeve being spaced slightly from said reduced portion and said mushroom head; a regulating sleeve surrounding said post and having an angularly extending flange resting on the rib of said carbureter wall; ribs extending from the inner wall of said regulating sleeve and engaging the sleeve on said post to guide and support the regulating sleeve; and connections from said fuel reservoir to the longitudinal bore in said post.

4. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber, the wall of said carbureter chamber being provided with an annularly projecting rib forming a contracted portion; a post disposed within said carbureting chamber and having a mushroom head and a bore extending longitudinally thereof; a plug threaded into the upper portion of said bore and provided with transverse passages and a longitudinal passage communicating with said transverse passages; a needle valve stem adjustably carried by said carbureter body and extending into the bore of said post, said valve stem being of smaller diameter than said bore, the upper end of said valve stem engaging the lower end of said plug to close the central passage therein, said post being provided with transverse passages in line with the transverse passages of said block; an annular groove in Which said passages terminate and a reduced portion above said groove; a sleeve on said post, the upper end of said sleeve being spaced slightly from said reduced portion and said mushroom head; a regulating sleeve surrounding said post and having an angularly extending flange resting on the rib of said carbureter wall; and connections from said fuel reservoir to the longitudinal bore in said post.

5. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber, a post disposed within said carbureting chamber and having a mushroom head and a bore extending longitudinally thereof; a plug threaded into the upper portion of said bore and provided with transverse passages and a longitudinal passage communicating with said transverse passages; a needle valve stem adjustably carried by said carbureter body and extending into the bore of said post, said valve stem being of smaller diameter than said bore, the upper end of said valve stem engaging the lower end of said plug to close the central passage therein; said post being provided with transverse passages in line with the transverse passages of said block; an annular groove in which said passages terminate and a reduced portion above said groove; a sleeve on said post, the upper end of said sleeve being spaced slightly from said reduced portion and said mushroom head; and connections from said fuel reservoir to the longitudinal bore in said post.

6. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber therein, the wall of said carbureting chamber being provided with a projecting rib forming a contracted portion; a post disposed Within said carbureting chamber and having a mushroom head and a bore extending longitudinally thereof; a plug threaded into the upper portion of said bore and provided with transverse passages and a longitudinal passage communicating with said transverse passages; a needle valve stem adjustably carried by said carbureter body and extending into the bore of said post, said valve stem being of smaller diameter than said bore, the upper end of said valve stem engaging the lower end of said plug to close the central passage therein; said post being provided with transverse passages in line with the transverse passages of the plug andwith a reduced portion in which said passages terminate; a sleeve on said post, the upper end of said sleeve being spaced slightly from said reduced portion and said mushroom head; a regulating sleeve surrounding said post and having an angularly extending flange resting on the rib of said carbureter wall; ribs extending from the inner Wall of said regulating sleeve and engaging the sleeve on said post to guide and support the regulating sleeve; and connections from said fuel reservoir to the longitudinal bore in said post, all coacting substantially as described and for the purpose specified.

7. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber therein, the wall of said carbureting chamber being provided with a projecting rib forming a contracted portion; a post disposed within said carbureting chamber and having a mushroom head and a bore extending longitudinally thereof; a plug threaded into the upper portion of said bore and provided With transverse passages and a longitudinal passage communicating with said transverse passage; a needle valve stem adjustably carried by said carbureter body and extending into the bore of said post, said valve stem being of smaller diameter than said bore, the upper end of said valve stem engaging the lower end of said plug to close the central passage therein; said post being provided with transverse passages in line with the transverse passages of the plug and with a reduced portion in which said passages terminate; a sleeve on said post, the upper end of said sleeve being spaced slightly from said reduced portion and said mushroom head; a regulating sleeve surrounding said post and having an angularly extending flange resting on the rib of said carbureter wall; and connections from said fuel reservoir to the longitudinal bore in said post, all coacting substantially as described and for the purpose specified.

8. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber therein; a post disposed within said carbureting chamber and having a mushroom head and a bore extending longitudinally thereof; a plug threaded into the upper portion of said bore and provided with transverse passages and a longitudinal passage communicating with said transverse passage; a needle valve stem adjustably carried by said carbureter body and extending into the bore of said post, said valve stem being of smaller diameter than said bore, the upper end of said valve stem engaging the lower end of said plug to close the central passage therein; said post being provided with transverse passages in line with the transverse passages of the plug and with a reduced portion in Which said passages terminate; a sleeve on said post, the upper end of said sleeve being spaced slightly from said reduced portion and said mushroom head; and connections from said fuel reservoir to the longitudinal bore in said post, all coacting substantially as described and for the purpose specified.

9. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber therein, the wall of said carbureting chamber being provided with a projecting rib forming a contracted portion; a post disposed within said carbureting chamber and having a mushroom head and a bore extending longitudinally thereof; a plug threaded into the upper portion of said bore and provided with a longitudinal passage and transverse passages communicating therewith; transverse passages in said post in line with said passages; connections from said fuel reservoir to the longitudinal bore in said post; valve means for closing the communication between said longitudinal bore and said carbureting chamber; a sleeve on said post, the upper end of said sleeve being spaced slightly from said post and said mushroom head; a regulating sleeve surrounding said post and having an angularly extending flange resting on the rib of said carbureter wall; and ribs extending from the inner wall of said regulating sleeve and engaging the sleeve on said post to guide said regulating sleeve; all coacting substantially as described and for the purpose specified.

10. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber therein, the wall of said carbureting chamber being provided with a projecting rib forming a contracted portion; a post disposed within said carbureting chamber and having a mushroom head and a bore extending longitudinally thereof; a plug threaded into the upper portion of said bore and provided with a longitudinal passage and transverse passages communicating therewith; transverse passages in said post in line with said passages; connections from said fuel reservoir to the longitudinal bore in said post; valve means for closing the communication between said longitudinal bore and said carbureting chamber; a sleeve on said post, the upper end of said sleeve being spaced slightly from said post and said mushroom head; a regulating sleeve surrounding said post and having an angularly extending flange resting on the rib of said carbureter wall; all coacting substantially as described and for the purpose specified.

11. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber therein; a post disposed within said carbureting chamber and having a mushroom head and bore extend ing longitudinally thereof; a plug threaded into the upper portion of said bore and provided with a longitudinal passage and transverse passages communicating therewith; transverse passages in said post in line with said passages; connections from said fuel reservoir to the longitudinal bore in said post; valve means for closing the communi cation between said longitudinal bore and said carbureting chamber; a sleeve on said post, the upper end of said sleeve being spaced slightly from said post and said mushroom head; all coacting substantially as described and for the purpose specified.

12. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber therein, the Wall of said carbureting chamber being provided with a. projecting rib forming a contracted portion; a post disposed within said carbureting chamber and having a mushroom head and a bore extending longitudinally thereof; passages connecting said bore with said carbureting chamber; connections from said fuel reservoir to the longitudinal bore in said post; valve means for closing communication between said longitudinal bore and said carbureting chamber; a sleeve on said post, the upper end thereof being spaced slightly from said post and said mushroom head; and a regulating sleeve surrounding said post and having an angularly extending flange resting on the rib of said carbui'ctcr wall; all coacting substantially as described and for the purpose specified.

13. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber therein; a fixed post disposed within said carbureting chamber having a mushroom head extending radially beyond the coacting parts and having a bore extending longitudinally thereof; passages connecting said bore with said carbureting chamber beneath said mushoom head; connections from said fuel reservoir to the longitudinal bore in said post; valve means for closing communication between said longitudinal bore and said carbureting chamber; a sleeve on' said post, the upper end thereof being spaced slightly from said post; all coacting substantially as described and for the purpose specified.

14. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber therein, the wall of said carbureting chamber being provided with a projecting rib forming a contracted portion; a post disposed within said carbureting chamber; means carried by said post for discharging a thin film of oil into said carbureting chamber; a regulating sleeve surrounding said post and having an angularly extending flange resting on the rib of said carbureter Wall; and ribs extending from the inner wall of said regulating sleeve and engaging said post to guide said regulating sleeve; all coacting substantially as described and for the purpose specified.

15. In a carbureter, the combination of a carbureter body having a fuel reservoir and a carbureting chamber therein, the Wall of said carbureting chamber being provided with a projecting rib forming a contracted portion: a post disposed within said carbureting chamber; means carried by said post for discharging a thin film of oil into said carbureting chamber; a regulating sleeve surrounding said post and having an angularly extending flange resting on the rib of said carbureter wall: all coacting substantially as described and for the purpose specified.

16. In a carbureter, the combination of a carbureter body, having a carbureting chamber therein; means disposed within said carbureting chamber for discharging a thin film of oil; a head disposed over said carbureting chamber and having a discharge passage therein, the lower surface of said head my hand and seal in the presence of two being provided With an annular groove Witnesses. around the opening to said discharge passage, coacting substantially as described and 5 for the purpose specified.

In Witness whereof, I have hereunto set Witnesses LYLE WI Copies of this patent may be obtained for five cents each, by addressin Washington, D. C.

JESSE o. SIMMONS. [L.s.]

ALBERT S. HINDS.

g the Commissioner of Patents,

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