US1328199A - Charge-forming device - Google Patents

Description

F. DIAND W. O. HECTOR.

CHARGE FORMING DEVICE.

APPLICATION FILED JUNE 15, l9l6.

1,32 ,199, Patented Jan.13,1920.

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F. 0. AND w. Q. HECTOR; CHARGE FORMING DEVICE.

APPLICATLON FILED JUNE 15, 1916.

1,328, 199. 1 Patnted Jam-13, 1920.

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UNITED STATES PATENT OFFICE.

FLOYD D. HECTOR AND WILLIAM Q. RECTOR, OF LOUISVILLE, KENTUCKY.

CHARGE-FORMING DEVICE.

Specification of Letters Patent.

Patented Jam 13, 1920.

Application filed .Tune 15, 1916. Serial No. 103,794.

To all whom it may concern:

Be it known that we, FLOYD D. REo'roR and WILLIAM Q. R oToR, citizens of the United States, and residents of Louisville, in the county of Jefferson and State of Kentucky, respectively, have invented certain new and useful Improvements in Charge- Forming Devices for Internal-Combustion Engines, of which the following is a specification.

The present invention relates to the art of internal combustion engines and has particular reference to new and useful improvements in charge forming devices for use in connection with said art.

It is well known to those skilled in the art that the charge forming devices now in. use do not render the desired result, principally because of the universal use of hydrocarbon as the power element. The use of hydrocarbon is principally objectionable because of the deleterious eflect .of the same upon the cylinders, valves and pistons of the internal. combustion engine, due essentially to the formation of carbon on parts exposed to the action of the explosive compound. These defects caused by the use of hydro-carbon and the like are emphasized by the failure of the present type of charge forming devices to provide a proper mixture, which latter is essential to the efficient operation of all internal combustion engines, particularly when running under adverse conditions at high speed.

Therefore, the primary object of our invention is to provide a charge forming device for use in connection with internal combustion engines and the like having an improved and novel mixing means associated therewith. whereby to provide the proper proportion of air and gas to form a most highlv eflicient mixture.

Another object of our invention is to pro- "vide a device of the class described which when in use obviates the necessity of employing hydrocarbon as an explosive element. the device of our invention preferably employing acetylene gas generated on the motor vehicle in the usual manner, a supply of carbid being provided.

A further object of our invention is to provide a charge forming device employing a gaseous power element other than hydrocarbon having new and improved means for automatically troiling the admission of air when the engine to which the device is attached increases or decreases its speed.

Other objects and advantages to be de: rived from the use of our improved charge forming device will appear from the following detail description and the claims, taken with the accompanying drawings, in which:'

Figure 1 is a vertical longitudinal seo-.

tional view of a charge forming device embodying the improvements of our invention;

Fig. 2 is a top plan view of the same;

Fig. 3 is an end elevational view of the same;

Fig. 4- is a fragmental enlarged detail of the high speed charge controlling mechanism; and

Fig. 5 is an enlarged detail sectional View of the low speed gas inlet valve.

Referring more particularly to the drawings, wherein similar characters of reference designate like and corresponding parts throughout the various views, 1 indicates the main body of our improved charge forming device, the same having a gas inlet opening 2 associated therewith. A partition 3 extends aoross the upper end of-the body or gas chamber 1 and is provided with a plurality of openings 4 and 5 for a purpose which will hereinafter appear.

The body 1 is extended to form a neck 6 having an annular flange 7 on the, upper free end thereof, said flange being adapted for connection to the inlet manifold of the usual internal combustion engine. 'The main throttle valve 8 of the butter-fly type The top wall 13 is provided'with an opening 14\ adjacent the outer end thereof in which is receivable a valve seat member 15. said valve seat member having a flange 16 through which screws 17 pass for securing the valve seat member to the top wall 13.

The valve seat member 15 is provided with a diametrically extending brace member 18 in which is sljdably operable a valve rod 19, a disk valve20 being carried bysaid rod and engageable with the under beveled edge 21 of the valve seat member 15. A head 22-is carried by the rod 19, a rock-arm 23 being pivoted at 24 to a bracket 25 serving to engage beneath said head. The valve 20 serves as an air inlet valve, the same being associated operably with the low speed gas inlet valve of the device.

The low speed valve, while being shown in Fig. 11 is bestshown in Fig. 5 and includes a tubular externally threaded supporting member 27 adjustably arranged in a flanged opening 28 formed in the top wall 13. The lower free end of the supporting member 27 is open to receive the coil spring 29, said coil spring 29' surrounding an operating rod 30 reciprocally mounted in said tubular member. The lower end of the rod 30 carries a head 31, said head being engageable by the lower free end of said spring 29, a needle point 32 extending from said head for engagement in the opening 5 in the partition 3.

The upper free end of the rod 30 is threaded and" an adjusting head 33 is receivable thereon, the rock-arm 23 being connected with the rod 30 by virtue of the provision of the coil spring 34 interposed between the free end of said rock-arm and said adjusting head 33. The outer end of the supporting element 27 is provided with a knurled head 35.

The high speed valve is composed of a valve rod 36 vertically reciprocable in a tubular bearing member 37 adjustably engaged with the top wall 13, a coil spring 38 being arranged about said rod 36 and engaging said supporting member and a head 39 carried by the rod. A needle point 40 is also carried by the lower free end of the rod; for engagement in the opening 4, at times.- The rod 36 is to be simultaneously moved. withthe throttle. valve 8, therefore,

the'eupper free end ofsaid rod is provided with aloop 41, the free end of which is adapted to engage :a U-shaped bracket mem ber 42 arranged on a setscrew' 43 passing through a block 44 carried by the shaft 9. One'portion of the U-shaped member 42 is rounded as at 45 to permit the end of the loop 41 to ride thereon to operate thevalve in-the opening 4-when the throttle valve 8 isi moved. A knurled head 46 is carried by the freeEend of the screw 43.

In use acetylene gas is fed to'the body 1 through the inlet 2. Upon starting the en- I gine the suction caused by such action will intermittently open and close the valve 20 and the needle valve 32, causing the proper mixture of gas-and air. The partition 12 deflects the airdownwardly to a point adj acen't the gas. inlet of the low speed valve insuring the proper mixture.

Asthe throttle. valve 8 is opened further to. increase; the speed of the engine-the air' supply remains approximately constant, but necessarily there must be a larger supply of gas. For this purpose we have provided the high speed valve member 40 which is automatically opened as the throttle valve 8 is opened, by virtue of the engagement of the U-shaped member 42 with the hook 41.

The vertical movement of the valve 40 may be controlled by adjustment of the-U- shaped member 42 to various radii causing a longer or shorter stroke to the high speed valve.

From the foregoing it will be seen that we have provided a simple and durable charge forming device for internal combustion engines which, while capable of using hydrocarbon when vaporized, preferably 1s to be used in connection with acetylene gas. We have, under actual test, found that we are able to reduce the operating expenses of a motor vehicle more than three-fourths. Not only does the use of our improved charge forming device when used with acetylene gas reduce the expenses of operat ing a motor vehicle, but also permits of greater speed with the same type of motor.

From the above description taken in connection with the accompanying drawings, it is thought that a clear and comprehensive understanding of the construction, operation and advantages of our invention may be had, and while we have shown and described the device as embodying a specific structure, we desire that it be understood that such changes may be made in said structure as do not depart from the spirit and scope of the invention as claimed.

Having thus fully described our inven tion, what we claim as new and desire to secure by Letters Patent, is

1. In a charge forming device, a body having gas and air inlet openings and an outlet opening therein, gas and air chambers in said body, a mixing chamber in the body communicating with the gas and air chambers and the outlet opening, means, in the mixing chamber for regulating communication between the same and the gas chamber,

adjustable spring means engaged with said regulating means for yieldably seatingthe' same, a suction controlled valve arranged in the air inlet opening and connected to the:

adjustable spring means of said regulating means, a cut off in the outlet opening, and

other means in the mixing chamber for regulatingcommunication between the same and the gas chamber, said other regulating means being connected with the cut off and operable thereby at predetermined periods.

2. In a charge forming device, a body having gas and air inlet openings and an outlet opening therein, gas and air chambers in said body, a mixing chamber in the body communicating with the gas and air chambers and the outlet opening, means movably arranged in the mixing chamber for regulating communication between the same and the gas chamber, spring means engaged with said regulating means for normally seating the same, a suction controlled valve arranged in the air inlet opening and connected to the spring means of said regulating means, a cut off in the outlet opening, an adjustable bracket carried by said out off, and other meansin the mixing chamber for regulating communication between the same and the gas chamber extending into engagement with said adjustable bracket and operable upon movement of the cut off at predetermined periods.

8. In a charge forming device, a body having gas and air inlet openings and an outlet opening therein, superposed gas and mixing chambers in said body, an air chamber in the body arranged laterally of said mixing chamber, a partition in the air chamber extending into proximity of the bottom thereof, regulating means in the mixing chamber for controlling communication between the same and the gas chamber, adjustable spring means engaged with said regulating means for normally seating the same, a suction controlled valve in the air inlet opening and connected to the adjustable spring means of the regulating means, a cut off in the outlet opening, an adjustable bracket carried by said cut off, and other regulating means in the mixing chamber for controlling communication between the same and the gas chamber, said other regulating means extending into engagement with the adjustable bracket and operable on movement of said out off at predetermined periods.

4:. In a charge forming device, a body having gas and air inlet openings and an outlet opening therein, superposed gas and mixing chambers in said body, an air chamber in the body arranged laterally of said mixing chamber, a partition in the air chamber extending into proximity with the bottom thereof for deflecting the air supply downwardly into the mixing chamber to more thoroughly mix the same with the fuel supply, a pair of fuel supply regulating means in the mixing chamber for controlling communication between the same and the gas chamber, adjustable spring means engaged with the said regulating means for normally seating the same, a suction control valve in the air inlet means and connected to the adjustable spring means on one of the fuel regulating means whereby to admit fuel and air through action of the suction stroke of the engine pistons, a cutoff in the outlet opening, and the other of said fuel regulating means connected with the cutoff whereby to increase the fuel supply when the cutoff is turned to increase the richness of the combustible charge transferred to the engine for the purpose set forth.

5. In a charge forming device, a body having gas and air inlet openings and an outlet opening therein, superposed gas and mixing chambers in said body, an air chamber in the body arranged laterally of said mixing chamber, a partition in the air chamber extending into proximity with the bottom thereof for deflecting the air. supply downwardly to the mixing chamber to more thoroughly mix the same with the fuel supply, a pair of valves in the mixing chamber for controlling communication between the same and the gas chamber, adjustable spring means engaged with said valves for normally seating the same, a suction control valve in the air inlet opening and connected with the adjustable spring means of one of the fuel regulating valves whereby to admit fuel and air through the action of the suction stroke of the engine pistons, a cutoff in the other opening, the other of said fuel regulating valves connected with the cutoff whereby to increase the fuel supply when the cutoff is turned to increase the richness of the combustible charge transferred to the engine and means for manually adjusting the operation of the second named fuel supply valve for the purpose set forth.

In testimony whereof we aflix our signatures hereto.

FLOYD D. RECTOR. WILLIAM Q. RECTOR.

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