US963804A - Carbureter. - Google Patents

Description

J. PETERSON.

GARBURETER.

APPLICATION FILED JUNE 30, 1909.

Patnted July 12, 1910.

iol

f TED STATES PA JOHN PETERSON,

COPARTNEESHIP.

GABBURETER;

Speeiication of Letters Patent. Application ileil June 30, 1909. Serial No.

YPatented July 12, 1919. 505,174.

To all whom it may concern:

Be it known that LJOHN PETERSON, a d

citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Carbureters, of which the following is a specification.

My invention relates to carbureters employed in connection with gasolene or hydrocarbon engines to effect the production of an explosive mixture of air and gasolene vapor for introduction to the engine cylinder.

The object of myY invention is to provide a device ofthe character mentioned adapted to edect the proper mixture of air and gasolene vapor at all speeds of the engine with which it is connected.

A further object is to provide a carbureter as mentioned which will be durable and of great efficiency, and further which will be comparatively simple of construction hence of low cost to manufacture.

Other objects will appear hereinafter.

But these objects in view ofAmy invention consist in a carbureter characterized as above mentioned and in certain details of construction and arrangements of parts all as will be hereinafter Vfully described and particularly pointed out in the claims.

y invention will be more readily under-v stood by reference to the accompanying drawing-which forms a part of this specification, tlie'figure shown therein illustrating a central vertical section of a. carbureter employing the preferred form of my invention.'

Referrin now to the draw' 1 indicates the prefera ly cylindrically formed body of my device provided with the detachable upper and lower heads 2 and 3 respectively preferably threaded in the upper and lower extremities thereof. Traversing the inte! rior of said'body are partitions or division'- walls 4 and 5 dividing said body interior into 3 independent chambers or com artinents, an upper gasolene' or fuel receiving chamber 6, an intermediateV chamber 7 and a lower outlet chamber 8 which, when the carbureter is in use, communicates, through a nozzle 9 threaded for the recep-Y tion of a conduit, with the operating engine. Formed in the chamber 6 is a-nozzle 10 preferably threaded to accommodate an oil or fuel supply pipe. Establishing communication between chambers 6 and. 7 is a uct extending V'through an enlargement 12 formed integrally with the partition 4. In order to effect thegoverningor, regulation of the flow of the fuel through said duct. I provide a needle valve 13, the stem 14 thereof extending through a. boss 15 formed upon the cover or upper head 2 and being preferably Y threaded therein. Threaded upon the upper extremity of said boss is af cap nut 16 inclosing a, bushing 17 and a packing 18 provided for obvious reasons. Extending through the peripheral walls of the chamber 7 is a series of perforations 7 which, when the device is in operation, serve in the capacity of air inlets- Threaded into the lower head 3 is a sleeve 19 iixed, preferably by a key 20, to the lower exteriorly projecting extremity of which is a thumb nut 21 by means of which the positionin of said sleeve in said heady may be rea ily regulated. A lock nut 22 threaded upon said sleeve adapted to abut the outer surface of said head 3, is adapted to lock said sleeve in adjusted position. Reciprocally mounted in said'sleeve is a stem 23 carrying at this upper extremity a check valve 24 adapted to seat in a beveled valve port 25 formed in the partition 5. A Aneedle valve 26 formed upon and upwardly projecting Vfrom the valve 24 is adapted, when the latter is seated, to close the lower extremity of the duct 11. A compression 0coil spring 27 interposed between the u nder side of the valve 24 and the upper flanged extremity 28 of the sleeve 19 is adapted to normally hold the valves 24 and 26 in seated position.

Pivotally mounted in a slot 29 formed in an ear 30 dependin from the head 3 is a lever 31 the enlarged extremity32 of which is disposed directly in the path of vibration or reciprocation of the stem 23, said lever being adapted to be adjusted by means of an actuating lever 33 to regulate the extent of vibration or reciprocation of the said .valve stem and hence the extent of depression of the valves 24 and 26.'V The slot 29 is so formed that the lever 31 may not at any time entirely check vibration or reciprocation of the stem 23 hence the supply to the en 'ne maI not at any time be entirely shut oligilenoug vibration of said stem being permitted, when said lever is at the extremity of its retarding or checking movement, to

permit of the passage of enough gas through the carbureter to keep the engine running, such provision being of obvious advantage.

Having their inner extremities rigidly secured, preferably threaded, in an enlargement formed in the valve head 26 for their accommodation, the outer extremities thereof extending through vertically extending elongated narrow slots 34 formed in the outer wall of the chamber 7, are oppositely extending substantially horizontally disposed rods 35 the outer end portions 36 of which are bent upwardly to a vertically extending posit-ion as shown. Slidable upon, the same snugly fitting the outer surface of the circumferential wall of the chamber 7 is a ring 37 of a width preferably slightly greater than the diameter of theair inlets 7 Formed upon and outwardly projecting from said ring are perforated ears 38, the same bein so positioned as to loosely engage the en portions-'36 of the rods 35. Threaded upon said rodV end portions are nuts 39 adapted to engage said ears 38 and by means of which the rino* 37 may evidently be adjusted to any desired` positionthereon. With such provision it is clear the member 37 may be adjusted to automatically regulate the air intake'to the chamber 7 ,that is, said member may be adjusted upon the rods 35 to open or close the air inlets 7', as desired, with reference to the valves 24 and 26.

In the operation, of the device, the valve 13 being in open position to permit of the passage of vaporous gasolene or fuel through the duct 12, uponthe suction stroke of the engine piston, the check valve 24 and hence the valve 26 will, because of a partial vacuum being formed in the chamber 8, be lowered to openin position, the Ysame obviously carrying therewith in.n their downward movement, the member 37 which, in its downward actuation uncovers the air inlets 7. In such event gasolene vapor will be admitted to the cha1nber`7 where it will be mixed with a proper percentage of air as regulated by the ring 37, such mixture passing through the valve port 25 to chamber 8 and thence to .the engine cylinder. Upon the return stroke of the engine piston, in which event' the suction or pullupon the check valve is removed, the latter and hence the valve 26 will be returned to closing positionl by means of thespring 27 thereby shuttin off passa e'of fuel through the device an the supp y of explosive mixture to the engine and simultaneous with such closing of said valves will be the returning to initial or closing position of the air intake regulator 37. `Hence it is evident that with such construction the greater the suction createdin'the chamber 8 the greater willbe the extent of opening of said valves and to a greater extent the uncovering of the air intake ports, in other words the supply will be automatically regulated to satisfy the demand for it. By means of the sleeve 19 the tension of the spring 27 may be adjusted so as to exert any desired .force orl pressure upon the valve 24.

While I have shown, what I deem to be the preferable form of my carbureter I do not wish to be limited thereto as there might be many changes made in the details of construction and the 'arrangement of parts without departlng from the spirit of my invention Vcom rehended within the scope of the ,appende' claims.

Having described my invention what l claim as new and desire to secure by Letters Patent is;

1. Ina carbureter, the combination of a mixing chamber, means for admitting fuel thereto, regulatable means for admitting air to said mixing chamber, a suction operated valve governing the outlet from said mixing chamber, and connections between said valve and said air admission means whereby actuation lof said valve automatically actuates said air admission means, substantially as described.

2. In a carbureter,- the combination of a mixing chamber, means for admitting fuel thereto, regulatable means for admitting air to said mixing chamber, a suctionoperated valve governin mixing chamber, an adjustable connections between said valve and said air admission means whereby actuation of said valve automatically actuates said air admission means, substantially as described.

3. In a carbureter, the combination of a mixing chamber, means for admitting fuel thereto, regulatable means for admitting air to said mixing chamber, a suction operated valve governing the outlet from said mixing chamber, connections between said valve and said admission lmeans whereby actuation of said valve automatically actuates said air admission means, substantially as described.

4. In a carbureter, the combination of a chamber, means for admitting fuel thereto, regulatable means for admitting air to said mixing chamber, a suction operated valve governin the outlet from said mix in chamber, a justable connections between sa1d valve andsaid vair admission means whereby actuation of said'svalve automatically actuates said air. admission means,

substantially as described.

the outlet from said eeasoa tablishing communication between said mixing and outlet chambers, a needle valve threaded into the end -wall of said body forregulating the liow of fuel through said duct, air inlets formed in the vperipheral wall of said mixing chamber, a sleeve threaded inthe lower end of said body, a stem 'reciprocally mounted in said sleeve carryin a check valve adapted to seat in said Va ve port, a ring slidable upon said body adapted to cover said air inlets, an adjustable operative connection between said rin and said'stem, and a second valve carrie vby said stem adapted to close the lower extremity of said'fuel duct, a coil spring interposed between said check valve and the upper extremity of said sleeve adapted to normally seat said last named valves, and adjustable means operatively connected` with the lower extremity of said bodyv adapted to limit the reciprocatory movement of said valve stem, substantially as described.

, 6. In a carbureter, the combination of a body having partitions dividing the interior thereof into an upper fuel receiving chamber, an intermediate mixing chamber, and a1 lower outletfchamber, there being a duct establishing communication between said fuel and said mixing chambers and a valve port establishing connection between sald Amixing and outlet chambers, a needle valveadaptedto control the iow of fuel through said duct, air inlets formed in the peripheral wall of said 'mixing chamber, a stem carrying a check valve adapted to seat in said port, a needle valve carried by said stem adapted to close the lower extremity of said fuel duct, a ring slidable upon said body adapted to cover said air inlets, an adjustable operative connection bet-Ween ysaid ring and said stem, said connection comprising arms secured to and outwardly projecting from said stem through slots provided in said peripheral wall and means adjustably securmg said ring to said arms, spring means adaptedl to normally seat said check valve and said last named needle valve, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN PETERSON.

Witnesses:

JOSHUA R. H. Porra, y HELEN F. LILLrs.

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