US1144549A

US1144549A - Carbureter for internal-combustion engines.

Info

Publication number: US1144549A
Application number: US73763712A
Authority: US
Inventors: Edmund J Kane
Original assignee: Int Harvester Corp
Current assignee: International Motors LLC
Priority date: 1912-12-19
Filing date: 1912-12-19
Publication date: 1915-06-29
Anticipated expiration: 1932-06-29

Description

E. J. KANE.

CARBURETER FOB INTERNAL COMBUSTION ENGINES.

4 APPLICATION FILED DEC. 19, 1912. I Lwkfio Patented June 29, 1915.

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APPLICATION FILED DEC. 19, I912.

Patented June 29, 1915.

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APPLICATION FILED DEC. I9, 1912.

Patented June 29, 1915.

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EDMUND J'. KANE, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, [DO INTERNATIONAL HARVESTER CORPORATION, A CORPORATION OF NEW JERSEY.

CARBURETER FOR INTERNAL-COMBUSTION ENGINES,

Specification of Letters Patent.

Patented June 2%, 1915.

a plication filedDecember 19,1912. Seria1N0.737,637. a i i p .hifii fi To ally/17mm it may concern 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 in Carbureters for Internal-Combustion Engines, of which the following is a full, clear, and exact specification.

My invention relates to carbureters 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 consumed; the object of my invention being to provide a mechanism controlled by the engine governor that will provide a proper combustible mixture of hydrocarbon, air and water, simple in -con-' struction and eflicient in operation. These objects are attained by means of the mechanism illustrated by the accompanying drawings, in which-- Figure 1 is a side elevation of an internal combustion engine having my invention forming a part thereof; Fig. 2 is an enlarged side elevation of the carburetor mechanism; Fig. 3 is a side elevation of Fig. 2, partly in section; Fig. 4 is a cross section of Fig. 3 along line A-B; Fig. 5 is a top plan view of Fig. 2; and Fig. 6 is a side elevation of the upper part of Fig. 2 and designed to illustrate the operation of the air throttling valve.

The same reference characters designate like parts throughout the several views.

' 1 represents the crank case of an internal combustion engine, 2 the engine crank shaft journaled in bearings carried by the crank case, 3 the cam shaft, and 4 the power cylinder including a cylinder head Any of the common forms of centrifugal governor mechanism may be used and may be incloscd 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.

12 represents a constant level fuel feed of a. vertical conduit 21.

cup secured to the body of the mixing chamber by means of bolts 13, and divided, by means of a partition 12, into two separate receptacles, one communicating with a source 12 of gasolene supply and the other With a source 12 of l'zerosene 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 to the 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 16.

17 represents a constant level water feed cup-secured to the body of the mixing chamber, near the upper end thereof, and communicating with a source 17 of water supply, and having an overflow pipe 18, a feed nozzle 19 controlled by a needle valve 20, and communicating with the cup by means The upper end of the mixing chamber is open to the atmosphere, and 22 represents a butterfly valve secured to a stem 23 journaled in opposite walls of the casing and having the axis thereof in thesame plane as that of the feed nozzle 19, and having an arm 24 secured to one end thereof that is connected to the lever 8 of the means of a rod 25.

26 represents an arm loosely journaled governor mechanism by upon the stem adjacent the

arm

24, and 27" represents a laterally extending finger integral with arm 24; 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 butterfly valve mounted upon a stem 29 journaled in opposite walls of the n'iixing chamber, 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 32 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 arm 26, carried by the valve stem 93, by means of a pin 34. The valve 28 is normally turned by means of a spring 35 to an open position, with the upper end thereof resting against 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 valveare' substantially closed in the same direction, as indicated by dotted lines in Fig. 2, thus preventing the drawing or sucking in of water, the resulting fuel supply being rich in quality. As the load is increased and a greater 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 throttling valve 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 falls below normal and the engine is overloaded.

What I claim as my invention, and desire to secure bv Letters Patent, is:

1. A carbureter for internal combustion engines having. in combination, avertically arranged mixing chamber communicating with an engine cylinder and with the.atmosphere, an air throttling valve including a valve 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 ofsaid chamber near the lower end thereof, an arm secured to said stem, an operative connection between said arm and said second arm, a spring operative to turn said mixture throttling valve toward an open position, and a fuel feed mechanism communicating with said mixing 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 mecha: nism and including valve stems, means whereby said air throttling valve may be connected with an engine 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. In a carbureter for internal combustion engines, the combination of a mixing chamber, an air throttling valve, a mixture throt tling valve, and a connection between said valves whereby said valves may be actuated together or independently of e'ach'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 said valves 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;

In a carbureter for internal combustion engines, the combination of a mixing 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, said valves 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 10 vary the degree of vacuum in said chamber.

(3. In a carbureter for internal combustion engines, the combination of a mixing chamber, fuel and water feed mechanisms associated therewith, an air throttling valve 5 adapted to control the degree of vacuum in said chamber and the admission of water, a mixture throttling valve controlling the ad missionof 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 chain- 5 ber, awater 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 carburetor 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 chamof water. r

, ber,

9. In a carbureter for internal combustion engines, the combination of a mixing chamber, Water supply means associated therewith, and avalve having two closed positions for controlling the vacuum insaid 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.

10. In a carburetor for internal combustion engines, the combination of a mixing chamtherewith, and interconnected air throttling and mixture throttling valves in said chamfuel and Water supply means associated her, 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.

Chicago, 111., Dec. 2, 1912.

In testimony whereof I afiix my signature, in the presence of two Witnesses.

EDMUND J. KANE.

Witnesses:

'LEo J. Fons'rnx,

JAMES MCGANN.