USRE14224E - Carbureter for internal-combustion engines - Google Patents

Description

E. J. KANE.

CARBLRETEH FOR INTERNAL COMBUSHON ENGSNES.

APPLICATION FILED NOV. 15. l9l5.

Reissned Dec. 5, 1916.

3 SHEETSMSHEET 2.

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E. J. KANE.

CARBURETER FDR INTERNAL camausnow mamas. I f APPLICATION FILED NOV. l5\ 19H)- ;Llmssnefi Dec. 1:916.

E. 1. KANE. CAFIBUHETE'H FOR INTERNAL COMBUSTION ENGINES.

A Rm 1 9 11 Beissued Dec. 5.,

der including a cylinder head 5.

UNITED STATES PATENT orrmn.

EDMUND J. KANE, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENCliS, TO

I INTERNATIONAL HARVESTER CORPORATION, A CORPQRATION OF NEW JERSEY.

CARIBURETER FOR INTERNAL-COMBUSTION ENGINES.

Specification of Reissued Letters .atent. Reissued Dec. 5, 1921*. 4 Original No. 1,144,549, dated June 29, 1915, Serial No. 737,6 37, filed December 19, 1912. Application for reissue filed November 15, 1915. Serial No. 61,701.

To all whom it may concern: Y

Be it known that I, EDMUND J. KANE, a citizen of the United States, residing at Austin, Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements 1n Carburetors for Internal-Combustion Engines, of which the following is a. full, clear, and exact specification. 1 7

My invention relates to carburetors designed to use a heavy hydrocarbon oil, such as kerosene, for fuel, wherein a quantity of water is admitted to the mixing chamber under heavy load conditions, and wherein it is necessary to automatically control the admission of water in proportion to the amount of fuel coiisumed; the object of my invention beln eto provide a mechanism controlled by the engine governor that will provide a proper combustible mixture of hydrocarbon, air and water, simple in construction and eiiicient in operation. These objects are attained by means of the'mechanism illustratedby the accompanying drawings, in whichi Figure 1 is a sideelevation of an internal combustion engine having my invention forming a part thereof; Fig. 2 isanenlarged side elevation'of the carburetor mechanism; Fig. 3 is a side elevation of Fig. 2, partly in section; Fig-4t is a. cross scction of Fig. 3 along line A-B; Fig. 5 is a top plan view of Fig. 2; the upper part of Fig. 2 anddesignecLto illustrate the operation of the air throttling valve.

and Fig. 6 is a side elevatioir'of The same reference characters deslgnate.

like parts throughout the several views.

1 represents the crank case ofan internal combustion engine, 2 the engine crank shaft journaled in bearings carried by the crank case, 3 the cam shaft, and i the power cylin- Any of the commonforms of centrifugal governor mechanism may be used and may be inclosed 4 by a casing 6, and includes a rock shaft 7 journaled in bearings carried by the casing and having a depending arm 8 secured thereto.

9 represents the body of a vertically arranged mixing chamber, having a flange 10 at the lower end thereof whereby it is secured to the cylinder head 5, and a constricted central portion 11.: 4

reoresnts a laterall I extendin 1-- l h 12 represents a constant level fuel feed cup secured to the body of the mixing cham ber lay-means of bolts 13, and divided, by means of a partition 12 into two separate receptacles, one communicating with. a source 12 of gasolcne supply and the other with a source 12 of kerosene or other heavy hydrocarbon supply, and having the usual outflow pipes 12 connected therewith whereby a predetermined level of fuel is maintained in each cup.

14 represents feed nozzles communicating with the fuel receptacles by means of vertically arranged conduits 15 in a common way, the nozzles being directed along lines radial totlie axis of the mixing chamber and in the same plane as the constricted portion thereof, and having the flow of liquid therethrough controlled by needle valves 17 represents a constant level water food cup secured to the body of the mixing chainloer, near the upper end thereof, and coinmunicating with a source 17 of water sup ply, and having an overflow pipe 18, a feed nozzle 19 controlled by a needle valve 20*, and communicating with the cup by means of a vertical conduit 21. The upper end of the mixing chamber is open to the atmosphere, and 22 represents a butte rvalve secured to a stem 23 journalcd inopposite walls of the casing and having the axis thereof in the same plane as that of the feed nozzle 19, and having an arm 2 scour-ed to one end thereof that is connected to the lever 8 of the governor mechanism by means of a rod 25. 1

26 represents an arm loosely journaled upon the stem adjacent the arm il hand 2i" iger 1ntegral with arm 24c and adapted to engage with arm 26 when the. former has been moved by the governor mechanism through a predetermined degree of angularity.

28 represents a mixture throttling butterfiy valve mounted upon a stem. 29 journal in opposite walls of the mixing chamb near the lower end thereof, having an arm 30 secured to one end that is provided with a series of openings 31 therein that may selectively receive a pin whereby the arm is connected with the lower end of a rod 33, adjustable as to length, the opposite end of the rod being connected with the 52G,

pin 34. The valve 28 is normally turned by means of a spring 35 to an open position, with the upper end thereof restingagainst a pin 36 carried by the wall of the mixing chamber.

In operation, with the engine running under no load, or light load, the air throttling valve and the mixture throttling valve are quantity of fuel is required, the valves are turned clockwise toward an open position by the governor mechanism, and when they reach a position as shown by the dotted lines in Fig. 6, the finger 27 disengages with the arm 26. Upon a further movement of the valve 22 in the same direction, the mixture throttlingvalve 28 is left wide open,.

while the partial closing of valve 22 by a continued clockwise movement tends to create a vacuum in the mixer, resulting in the drawing in of more fuel and water,

,when the speed of the engine fallsbelow.

normal and the engine" is overloaded.

WVhat I claim as my invention, and desire to secure by Letters Patent, is:

- 1. A. carbureter for internal combustion engines having, in combination, a verticallyarranged mixing chamber communicating with an engine cylinderand with the atmosphere, an air throttling valveincluding avalve stem journaled in opposite walls of said mixing chamber near the upper end thereof, an arm secured to said valve stem and means whereby said arm may be connected with an engine governor mechanism, a second arm loosely mounted upon said stem and adapted to be turned axially by said first named arm when the latter has reached a predetermined degree of angular movement, a mixture throttling valve including a valve stem journaled in the walls of said chamber near the lowerend thereof, an arm secured to said stem, an operative connection between said arm and said sec ond arm, a spring operative to turn said mixture throttling valve toward an open position, and a fuel feed mechanism communicating with said iixing chamber.

2. A carbureter for internal combustion engines having, in combination, a mixing chamber communicating with an engine cylinder and with the atmosphere, fuel feed mechanism communicating with said mixing chamber, rocking air throttling and mixture throttling valves mounted in said chamber upon opposite sides of said fuel feed mechanism and including valve stems, uneans whereby said air throttling valve may be connected with an 'engme governor.

mechanism in a manner to be controlled thereby, a spring operative to normally retain said mixture throttling valve in an open position, an arm loosely mounted upon the stem of said air throttling valve, a second arm secured to the stem of said mixture throttling valve, and a link connection between said arms and said air throttling valve having a limited angular movement independent of said mixture throttling valve.

3. Ina carbureter for internal combustion engines, thecombination of a mixing chamber, an air-throttling valve, agnixture throttling valve, and a connection between said valves whereby said valves may be actuated together or independently of each other automatically, said valves being controlled in accordance with engine working conditions.

4. In a carbureter for internal combustion engines, the combination of a mixing chamber, air throttling and mixture throttling valves, and a connection between saidvvalves whereby said valves are actuated together under light load conditions, and one of said valves actuated independently of the other under heavy load conditions to vary the degree of vacuum in said mixing chamber.

5. In a carbureter for lnternal combustlon engmes, the combination of a mixmg chamber, interconnected air throttling and mixture throttling valves in said chamber, said air throttling valve having two closed positions and said mixture throttling valve one closed position, saidvalves being actuated in accordance with engine working conditions, and means whereby said mixture throttling valve is arrested in open position while said other valve is free to move to vary the degree of vacuum in said chamber.

6. In a carbureter for internal combustion engines, the combination of a mixing chamber, fuel and Water feed m echanisms associated therewith, an air throttling valve adapted to control the degreeof vacuum in said chamber and the admission of water, a mixture throttling valvecontrolling the admission of fuel, and an operative connection between said valves whereby said valves are actuated together under certain conditions and one independently of the other under other conditions.

7. In a carbureter for internal'combustion engines, the combination of a-mixing chamber, a water supply mechanism associated therewith, and a valve having. two closed positions for controlling the vacuum in said mixing chamber, one in which water is permitted to enter said chamber and the other preventing the admission of Water.

8. In combination a governor, and a carbureter' having a mixing chamber, .a Water supply mechanism associated therewith, and a valve controlled by said governor having two closed positions for controlling the vacuum in said mixing chamber, one. in which Water is permitted to enter said chamber and the other preventing the admission of water.

9. In a carbureter for internal combustion engines, the combination of a mixing chamber, water supply means associated there- .with, and a valve having'two closed positions for controlling the vacuum in said mixing chamber in a manner to permit the vacuum to extend to said water supply means under certainoperating conditions and to prevent the extension of the vacuum to said water supply means under different operating conditions.

10. In a carbureter for, internal combustion engines, the combination of a mixing chamber, fuel and water supply means associated therewith, and interconnected air throttling and mixture throttling valves in saidchamber, said air throttling valve having two closed positions for controlling the vacuum in said mixing chamber in a manner to permit the vacuum to extend to said water supply means under certain operating conditions and 'to prevent the extension of the vacuum to said water supply means under different operating conditions.

11. A. carbureter for an engine including a throttle valve, an air inlet valve, and a speed responsive device connected with the throttle valve. and with the air inlet valve -to move the latter toward closed position after the throttle valve is in full open position. 12. A carburetor for an engine including a throttle valve, an air inlet valve, fuel feeding means intermediate said valves, adevice for uniting the valves and including a lost motionconnection, and means operating through the device to control the action of the throttle during ordinary speed changes and to move the air inlet valve toward closed position upon an abnormal decrease in speed.

13. The combination of an engine, a carbureter connected therewith, and a speed responsive device controlling the carbureter, said carbureter including an air inlet valve, and a connection between the valve and speed responsive device whereby the valve is moved toward closed position as the speed of the engine drops below a predetermined point.

14. The combination of an engine having a carbureter connected therewith and means controlling the carbureter, said carburetercomprising a fuel spraying nozzle, throttle and an lnlet valves at opposite sides thereof,

and a connection between the valves for permitting simultaneous movement thereof during average speed changes, and independent movement of the air inlet valve during a drop in speed below a predetermined point. 1 f

15. The combination of an engine, a carbureter therefor comprising fuel admitting means and air inlet and throttle valves;

arms connected with the valves; a link-havinga direct connection with one arm and a lost motion connection wlth the other arm Whereby'the air inlet valve may be moved toward closed position while the throttle 'remains open.

16. The combination of an engine provided with a speed responsive device; a carbureter for the'engine comprising air inletconduit, mixing chamber, mixture outlet conduit, valve in said inlet conduit, device for feeding fuel into said inlet conduit, and

eratively controlled by the speed responsive device; and means controlled bythe speed throttle valve in said outlet conduit and opresponsive device to move the air inlet valve toward closed position durin' a drop in speed below. a predetermine point, and

after the throttle valve ismovedto full or approximately full open position.

17. A 'carbureter for an engine comprising air inlet conduit,:mixing chamber, mixture outlet conduit,-means for feeding fuel into the air indrawnthrough the inlet conduit,

throttle valve in the outlet conduit, valve in said inlet conduit, and means for moving the valves to vary the passage openings through said conduits simultaneously during normal operation and to move the inlet conduit valve toward closed positionv whenthe throttle valve reaches its full or approximately full open position.

18. A carbureter for an engine comprising air inlet conduit, mixing chamber, mixture outlet conduit, means for feedingfuel into the air indrawn through said inlet conduit,

throttling valve in said outlet conduit and adapted to vary free opening'therethrough, valve in said inlet conduit and adapted 'to vary the free opening. therethrough, and means for moving said air inlet valve toward closed position when the throttling valve reaches its full or approximately full EDMUND J. KANE. I

open position.

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