US1249373A - Carbureter. - Google Patents

Description

0.-C. FUNDERBURK.

.CARBURETER.

APPLICATION FILED JULY 21. l9l6.

Patented Dec. 11,1917.

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@I'Ifi U. FUNIDJERJBUEK, 0F DETROIT, MICHIGAN, ASSIGNOR T0 DETROIT LUBRICA'IUE COMPANY, OF DETROIT, MICHIGAN, A COBPOM'IIUN OI MICHIGAN.

GARBURETER.

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specification of Letters Patent.

Patented Dee. II, IWI'I...

Application tiled July 21, 1916. Serial No. name.

To all whom it may concern Be it known that I, Orrs C. Frmnamsnnn, a citizen of the United States of America, residing at Detroit, in the county of Wayne and Statev of Michigan, have invented certain new and useful Improvements in Carbureters, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to carbureters, and has particular reference to various features of construction as hereinafter set forth.

In the drawings:

Figure l is a sectional side elevation of the carbureter;

Fig. 2 is a section in a transverse plane.

A is the casing containing the mixing chamber B. C is an air valve seated to close the air inlet to said mixing chamber. D is the liquid fuel supply nozzle arranged centrally of said valve.

2 In the operation of carbureters' of this type there will be more or less condensation of the liquid upon the walls of the m xing chamber and connecting conduit, which when the carbureter is idling will drain back and collect in the space surrounding the air valve and its seat. When subsequently the valve is lifted from its seat, this liquid will be discharged into the incoming air, forming an abnormally rich mixture which is detrimental. To avoid such objection, I have provided means for draining the liquid collecting about the seat, which as shown comprises a small conduit E connecting with a recess adjacent to the seat and extending downward into a pocket F on the lower side of the air inlet conduit G. This pocket F is formed by a fitting engaging a threaded aperture in the conduit G. The tube 1E extends downward inthe pocket to near the bottom thereof, so that the liquid draining through the conduit in filling the pocket will seal the lower end of the tube.

With the construction just described in,

operation, whenever the carbureter isidling the condensation will collect and drain into the pocket, as has been described, and will thereby avoid accumulation about the seat of the air valve C. When the carbureter 1s again operated the vacuum produced in the mixing chamber prior to the lifting of the air valve C will cause the greater pressure of air upon the liquid in the pocket F to force it again upward through the tube 1E and to jet it into the mixing chamber. In this way all of the cooled liquid is again drawn in and commingled with air, but the detrlmental efi'ect of discharging a large quantity of liquid into the air inlet is avoided.

What I claim as my invention is 1. In a carbureter, the combination with a mixing chamber and an air valve seated 1n the air inlet to said chamber, of a conduit for draining away any condensation collectmg about said valve when engaged with its seat, and a pocket for receiving the drainage and for sealing therewith the lower end of said conduit, whereby said liquid will be redischarged through said conduit into said mixing chamber when the pressure in the latter is lower than atmosphere.

2. In a carbureter, the combination with a casing having a mixing chamber and an air conduit below the same, of an air valve seated in the inlet from said air conduit to the mixing chamber, a pocket communicating with said air conduit and depending therefrom, and a conduit for draining away any condensation collecting above said valve when said valve is engaged with its seat,

said conduit extending through the air conduit and terminating within said pocket.

In testimony whereof I afix my signature in the presence of two witnesses.

U'IIS C. FUNDERBURK. Witnesses:

Annnaibn I. Arm es, Janna P. Bauer.

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