US1475404A - Carburetor - Google Patents

Description

Fatented Nov. 27, 1923.

UNITED STATES- IA'ZSAM PAT NT emc ALBERT T. NEWMAN, OF EMPORIA, KANSAS, ASSIGNOE vOLE ONE-HALF TO J. RANKIN,

l OF EMPORIA, KANSASJ i I I A .2

' CARBURETOE.

Application filed. October 31, 1919.. Serial no. 334,797, I

To all whom it may concern.

Be it known that I, ALBERT T. NEWMAN, a citizen of the United States, residing at Emporia, in the county of Lyon and State of Kansas, have invented certain new and useful Improvements in Carburetors; and I do declare the following to be a full, clear, and

exact description of'the invention, such as .will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to carburetors and the primary object thereof is to provide means for effecting a thorough inter-comingling of the constituent parts of the explosive mixture and to do this in an inexpensive and eflicient manner.

It is also the purpose of my invention to provide means whereby water may be admitted to the carburetor-to co-mingle withthe air and hydrocarbon fluid preparatory to 25 passing into the manifold of the engine.

Another object of the invention is to provide means whereby the float chamber may be swung about the axis of the mixture chamber so that it may clear certain existing parts on the motor vehicle.

Other objects and advantages of the invention will be referred to hereinafter, it being understood that chan es in form, proportion and minor details of construction may be resorted to without departing from the spirit of the invention or sacrificing any of its advantages.

In the drawings,

Fig. I is a longitudinal, sectional view through a carburetor constructed in accordance with my invention,

Fig. II is perspective view of the deflector and auxiliary air valve, immediately thereafter, and

Fig. III is a detail view of the means for operating the needle valve.

Referring now to the drawings, by 1111- merals of reference: 7

1 designates a hydrocarbon reservoir havto any suitable source of supply, the inlet 2 being provided with a' valve seat 3 upon which a valve 4 is adapted to be seated and unseated through the medium of the float 5 ing an offset inlet 2 adapted to be connected and'the lever connection 6. 7 is an, agitator valve for spring 17, one end of which bears against the lever and the other end of which bears against the sleeve 18 carried by casting 9,

the valve having engagement with the casting, as at 20. The casting is provided with a seat or recess 21 to receive a ported projection 22 extending from the bottom of the casing which forms the primary mixing chamber. The primary mixing chamber is seated upon the casting 9 and packed by a f suitable packing 24, the connection being es tablished by a machine screw 25, projecting through the bottom of the casting and into the projection 22-. i

There is an air inlet passage 26 with which a water pipe 27 communicates, and the vertical wall 28 surrounding the primary mixing chamber is provided with a plurality of openings 29. The wall 28 supports a casing having therein a secondary mixing chamber 30 having a depending flange 31 project-ing belowthe openings 29 so thatthe air will be deflected toward the oil entering through the port32. Thesecondary mixing chamber is shown as provided with a top 33 and said top supports a bracket or'bridge 34, carrying a' circular or disk-like concavo-convex deflector 35. The hub 34 of the bracket 34 serves as a bearing for the longitudinally movable stem or rod 36, on which is a tubular member '37 provided with a peripheral flange, comprising a valve 38, adapted to be seated upon the floor 39 of theichamber 30 through the medium of the spring 40, one end of which bears against the under side of the deflector 35 and the other of which bears against the'bracket 41, as clearly shown in .Fig. II. The valve is adapted tobe unseated by the suction of theengine, thesuction being created in the pipe 42, which is adapted tobe connected to the manifold and which communicates with the discharge opening.-

Ill

of the secondary mixing chamber. The pipe that the hydrocarbon oil may enter the chamber 1 and pass into the chamber 23 in the usual way. The intake stroke of the piston will create suction in pipe 42, lifting the valvemember 37 off its seat and drawing air through the openings 29, and water from 27, and cause it to comingle with the oil in a complete mixture so that the air will be-. come thoroughly impregnated with the oil and water, or if water is not used, with the oil alone.

The valve 38 deflects the mixture toward the wall of the secondary mixing chamber and it will be further agitated or caused to become mixed through the medium of the deflector so that by the time it reaches the manifold the mixture will be complete. The projection 21 is provided with ports at right angles one to the other, which extend entirely through the same so if it becomes necessary to swing the supply chamber 1 at right angles to the port 26, this can be readily accomplished by loosening the nut 25. It will be observed that the ports 82 are radial ports and thatthere is a groove 22 communicating therewith so communication can be established between the conduit9 and the port 32 irrespective of the angleof adjustment of the casting 9 about the axis. of the projection 22 because the groove- 22"extends entirely around 22. Any well known means may be provided for supplying water through the pipe 27; for example, such as is shown in the patent to Corser, No. 1,120,602. The pipe 16 of the Corser patent may be substituted for the present pipe 27.

What I claim. and desire to secure by Letters Patent is: V

1. In a carburetor, a casing constituting a primary'mixing chamber and asecondary mixing chamber, the secondary mixing chamber having a depending tubular flange in the floor thereof to provide a constricted inlet passageway and a discharge opening in the) top thereof, the primary mixing chamber surrounding the flange, the floor ofthe primary mixing chamber being spaced from the lower end of the flange, the walls of the primary mixing chamber being provided with openings, an air inlet passageway surrounding the wall-s of the primary mixing chamber and adapted to communicate therewith and with the space confined by thetubular flange, a fuel supply nozzle in the floor of the primary mixing'chamber, an upwardly movable disk valve for controlling the inlet passageway for the secondary mixing chamber, and a depending tube carried by the disk valve. in alignment with the fuel inlet in the bottom of the primary mixing chamber. 7

2. In a carburetor, a casing constituting a primary mixing chamber anda secondary mixing chamber, the secondary mixing chamber having a depending tubular flange in the floor thereof to provide a constricted inlet passageway and a discharge opening in the top thereof, the primary mixing chamber surrounding the flange, the floor of the primary mixing chamber being spaced from the lower end of the flange, the walls of the primary mixing chamber being provided with openings, an air inlet passageway surrounding the walls of the primary mixing chamber and adapted to communicate therewith and with the space confined by the tubular flange, a fuel supply nozzle in the floor of the primary mixing chamber, an. upwardly movable disk valve for controlling the inlet passageway for the secondary mixing cham ber, a depending tube carried by the disk valve in alignment with' the fuel inlet in the bottom of the primary mixing chamber, and means for maintaining the liquid level in the primary mixing chamber below the tubular flange depending from the floor of the secondary mixing chamber.

3. In a carburetor, a casing constituting a primary mixing chamber and a secondary mixing chamber, the secondary mixing chamber having a depending tubular flange in the floor thereof to provide a constricted inlet passageway and a discharge opening in the top thereof, the primary mixing chamber surrounding the flange, the floor of the primary mixing chamber being spaced from the lower end of the flange, the walls ofthe primary mixing chamber being provided with openings, an air inlet passageway surrounding the walls of the primary mixing chamber and. adapted to communicate therewith and with the space confined by the tubular flange, a fuel'supply nozzle in the floor of the primary mixing chamber, an upwardly movable disk valve for controlling the inlet passageway for the secondary mixing chamber, a depending tube carried by the disk valve in alignment with the fuel inlet in. the bottom of the primary mixing chamber, and a concavo-convex deflector rigidly supported between the top and bottom ofthe secondary mixing chamber, the outer edge of which is spaced from the wall of the secondary mixing chamber, the diameter of the deflector being greater than the diameter of the valve.

In testimony whereof I aflix my signature.

ALBERT T. NEWMAN.

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