US1629898A - Carburetor - Google Patents

Description

May 1927' w. H. K. WILLIAMS CARBURETOR Filed June 26, 1926 Patented May 24, 1927.

UNITED STATES PATENT OFFICE.

WILLIAMH. K. WILLIAMS, OF COTTONWOOD, SOUTH DAKOTA.

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Application filed J'une 26,'1926. Serial No; 118,770.

This invention relates to carburetors and has for an important object thereof'the pro-' vision of means for thoroughly agitating the gasoline within the carburetor to enable proper association of air admitted to themeans are provided. for varying the opera tion of the agitator in accordance with the speed of the engine, so that a tion may be had at all times.

A further object'of the invention is to provide a device of this character in which the fuel content of the casing may be heated, if so desired, so that the mixture of the fuel with the air is promoted.

These and other objects I attain'by the construction shown in the accompan ing drawings, wherein for the purpose of 1 lustration is shown-a preferred embodiment of my invention and wherein Figure 1 is a vertical sectional view througha carburetor constructed in accordance with my invention;

Figure 2 is a section on the line 2-2 of Figure 1.

Referring now more particularly to the drawings, the numeral 10 generally designates a casing having associated therewith means for maintaining a constant liquid fuel level therein. In the present illustration, this means comprises a second casing 11 subdivided to provide upper and lower chambers 12 and 13. The chamber 13 has arranged therein a float 14 controlling admission of fuel from 'a fuel feed line 15 and this chamber is connected with the casing 10 below the level of fuel within the chamber 13 by a conduit 16 including a check valve 17 opening toward the casing 10.

The casings 10 and 11 are preferably secured to a conduit 18, which conduit is one of two branches 19 of anexhaust pipe 20. At the junction of'the branches 18 and 19 with the conduit 20, a valve 21 is disposed for directing the products of combustion passing through the exhaust pipe to either branch or for permitting a desired amount of these products to pass to either branch.

proper agita- A This provides a means for heating the chamber 13 of the casing 11 and the casing 10, so that the liquid fuel therein may be rendered much more volatile and, therefore readily combined with air.

Within the chamber 10 and secured to the side and bottom walls of this chamber are a series of radially directed baliles 22 between two of which the conduit 16 opens. to the casing 10. The chamber 12 is in the form of an air' washer, being designed to contain a liquid, generally indicated at 23,

and having an air inlet pipe 24 which opensv into the chamber below the level of the liquid. Above the level of the liquid, the

chamber is provided-with an outlet'25 communicating with the casing 10 between two adjacent baflies 22. Axially of the bottom of the casing a step bearing 26 is provided to receive the lower end of a shaft 27 and permit a limited vertical movement thereof.

This shaft at the upper end of the casin passes through a packing gland 28 mounted upon the upper end wall 29 of the casing. This upper end wall provides a bracket 30 within which is rotatably mounted a shaft 31 having arranged therein an overrunning clutch 32 of any suitable character to permit the end of the shaft engaged in the bracket to be rotated more rapidly than the shaft at the opposite side of this overrunning clutch which is attached to and driven from the engine shaft, as indicated. The bracket 30 has at. its upper end a horizontal extension 33 rotatably receiving the hub of a horizontally disposed bevel gear 34 splined to the upper end of the shaft27. Below the bracket, the hub of this gear has attached thereto centrifugal governor elements 35 .operatively connected .with the.

shaft 27 between collars 36 secured thereto by links 37.. The governor elements may have associated therewith a control spring 38, if so desired. I

- The gear 34 has upon its upper-surface an operating handle 39 whereby it may be rotated and this gear meshes with a gear 40 secured to the shaft 31. The shaft 27 within the casing has secured thereto a propeller blade 41 which, when the liquid fuel is at its normal level and the vehicle is operatingat a low rate of speed, is completely submerged in the liquid. As the speed of the vehicle increases, the governor elements serve to elevate the shaft 27 and with it the propeller blade 41, so that the pro eller blade is only partially submerged an the a itation applied to the fuel is according y reduced. The baffies 22 serve to increase the agitation Within the casing in that they prevent the fluid from circulating with the propeller blade by breaking up the circular thrust thereof. It will be quite obvious that agitation of the fluid by the blade will cause the fluid to more readily mingle with the air introduced to the casing. Since the agitation is reduced in accordance with the speed of the engine, it will, of course, follow that the mixture will be leaner at high speeds in accordance with the needs of the engine.

The casing 10 will, of course, be provided with the usual outlet 42 for connection with the intake manifold of the engine and having a throttle valve 43 controlling the passage of the explosive mixture therethrough. In starting the engine, agitation of the mixture to provide an explosive charge within the casing 10 which may be withdrawn for primary use in the engine may be provided by rotating the gear 34 through the bandle 39.

Since the construction hereinbefore set forth is capable of a certain range of change and modification without materially departing from the spirit of the invention, I do not limit myself to such specific structure except as hereinafter claimed.

I claim 1. In a carburetor and in combination a casing, means formaintaining a predetermined liquid level within the casing, means for introducing air to the casing below the level of liquid therein, means normally submerged in the liquid for agitating the liquid and adapted to be driven from the shaft of the engine to which the carburetor is attached and means for partially withdraw ing the agitating device from the liquid as the speed of the engine increases.

2. In a carburetor and in combination a casing, means for maintaining a predetermined liquid level within the casing, means for introducing air to the casing below the I level of liquid therein, means normallysubmerged in the liquid for agitating the liquid and adapted to be driven from the shaft of the engine to which the carburetor is attached, means for partially withdrawing the agitating device from the liquid as the speed of the engine increases and means for manually operating the agitating device.

In testimony whereof I hereunto afiix my signature. 5

WILLIAM H. K. WILLIAMS

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