US1089089A

US1089089A - Carbureter.

Info

Publication number: US1089089A
Application number: US59573010A
Authority: US
Inventors: Nathaniel C Stamps
Original assignee: STROMBERG MOTOR DEVICES CO
Current assignee: STROMBERG MOTOR DEVICES Co
Priority date: 1910-12-05
Filing date: 1910-12-05
Publication date: 1914-03-03
Anticipated expiration: 1931-03-03

Description

N. C. STAMPS.

GARBURETER.

APPLICATION FILED DEG. 5, 1910.

ggg gg, Patented Mar.3,1914.

witnesses. W ifiaezzmw J. 103959891? 'A iicatien aieanecembersyieio. Serial In. 595,730.

UNITED STATES PATENT OFFICE NA'ItE-I IANiEfl-"GI swarms, or bonsa -rank, CALIFORNIA; AssIeivoit 1T0 STROMBERG- Moron nEvIcns German or CHICAGO," ILLINOIS, A CORPORATION or ILLINOIS:

To all whom it may concern Be it known that I, NATHANIEL (I. STAMPS, a citizen of the United States, residing at Ocean Park, county of Los Angeles, and State of California, have invented new and useful Improvements in Carburetors, of which the following is a specification.

This invention relates to improvements in carburetors and particularly to such as are adapted for use in connection with auto-m0- biles and it is an object of tie invention to p ovide a carbureter in which the flow of gasolene for producing the mixture of air and gas for the automobile engine may be controlled in accordance with the requirement of the engine, automatically' It is also an object of the invention to provide a carbureter with a plurality of gasolene inlets, one of which is controlled by the suction or pull of the engine in drawing in the gaseous mixture for its operation.

The invention has been illustrated so as to 1 show the preferred form of apparatus and the embodiment of its features are shown herein.

The invention consists in'the novel construction, combinations and arrangements of .,Fig. .2 is also a side elevation of the carbureter, but looking at the same from the a i taken on the line carbureter, the sleeve or thimble which conside upon which the gasolene is introduced. Fig. 3 is a vertical central sectional view 3-3 of Fig. 1 through the trols the gasolene feed being shown in side is a detail elevation. Fig. 4 is a central vertical sectional view through the mechanism taken at right angles to the plan of the section of Fig. 3. Fig. 5 is a horizontal sectional view taken upon the line a-b of Fig. 2. Fig. 6 horizontal sectional view taken upon the line c-al of Fig. 4. Fig. 7 is a de tail sectional view through the adjustable means for controlling the action of the inflow of gasolene to the carbureter.

Referring more particularly to the parts of the carburetor, 1 indicates the main casing, 2 the mixing chamber above the same, and 3 the gasolene feed pipe. The casing 1 .is preferably made cylindrical and of a suit:

able depth to accommodatethe movement of a float as 4 which is loosely mounted within I cannuan'run. I

Patented Mar. 3.11914.

the same. "he casing 1 is enlarged upon one side to form an entrance recess as 5 within which the valve 6 is mounted. which is controlled by the float in regulating the inflow of gasolene to the carbureter.

The valve 6 is formed upon the lower end of a stem 7, the lower end of which stem is enlarged and provided with screw threads as at S. The upper end of the stem extends outside of the casing as clearly shown in Figs. 1 and 1 and is provided with a milled head 9 by which it may be adjusted. The said valve stem 7 passes longitudinally through a weighted sleeve as 10 the upper portion of which is reduced in size and preferably made rectangular or squarein cross section where it passes outwardly through the wall of the carbureter casing. The binding nut 9 screwed upon the upper end of the stem 7, engages the end of the sleeve 10 after the valve 6 has been properly set, for holding it in adjusted posit-ion.

The squared portion 11 of the weighted sleeve is adapted to move vertically in a nut 12 which is secured into the aperture 13 in the casing. By turning the valve stem 7 it may be adjusted with respect to the weighted sleeve 10 so as to permit of a proper feed of the incoming gasolene. The valve 6 engages a valve seat 1% formed in the lower floor of the recess 5 and the said valve thus controls an inlet aperture 15 through which the gasolene is drawn. The feed pipe 3 is secured to a coupling as 16 so that the gasolene is first introduced through said pipe into a smallichamber 17 formed below the recess 5. The gasolene thus passes through theinlet 15 under the control of the valve 6.

The valve 6 is automatically raised or lowered by means of a yoke shaped lever 18 which extends into the casing 1, the forked inner portion thereof projecting in a semicircular manner beneath the hollow float 4. A depending projection 19 upon the under side of said fork lever is pivoted at 20 in the casing of the carburetor so that it may rock back and forth in accordance with the action of the float 4. An outer projection 21 of the forked lever is provided with a forked end 28 which engages an annular rest upon the said lever 18 it will rock the lever so as to lift the valve 6 from its seat andpermit the inflow of gasolene. As the gasolene rises in height in the casing 1 and lifts the float the lever 18 will be permitted 1 to rock in the opposite direction and seat the her. The casing 1 is provided with a cen valve 6 for preventing a further inflow of gasolene until more is needed.

The gasolene. is directed from the float chamber to the inlet valves of the carbureter .by means-of a passage 25'which connects with the float chamber atone end and extends below and laterally beneaththe casing 1 to a point where

inlet nozzles

26 and 27 extend upwardly toward the mixing cham- -tral concentric passage-way as at 28, the walls, of said passage projecting at their upper edges slightly above the walls of the casing 1. The lower end of said casing is open to the air so that the air can be drawn upwardly through the passage 28 and enter theimixing chamber as may be required.

The nozzle 26 preferably projects upwardly along the central axis of the air inlet 28 and is provided with a needle valve as 29 which is set to secure a proper initial flow of gasolene for use, when the engine to which the carbureter is connected begins its operation or is running slowly. The nozzle 27 is also provided with a needle valve as 30and. is arranged to one side of the valve 29 and is usually applied upon the inner surface of the wall of the passage 28;

The passage of the gasolene into the mixing chamber 2 is controlled by means of a hollow thimble or sleeve 31, the upper end of which is flared outwardly and made to fit a bevel seat 32 formed in the upper edge of the inner concentric wall of the casing 1. The lower portion of the hollow thimble or casing 31 is preferably made cylindrical and is spaced a suflicient distance from the walls of the passage 28 to permit of an inflow of air. The air is also admitted through the central bore of the sleeve 31 and around the nozzle 26. The passage through the-center of the sleeve 31 is preferably flared outwardly at its lower and upper ends,- it being contracted somewhat opposite the discharge end of the nozzle 26 as clearly shown in Fig. 4. The suction of the engine in drawing in the air and gaseous mixture is capable of lifting the sleeve 31 for permitting an inflow of a large quantity of air and also for drawing gasoleue from the auxilary nozzle 27. W? he air is drawn up- ,n-d 1y through sleeve 31 the construction of the saidv sleeve is such that as it rises the contracted portion of said sleeve 31 automatically causes the suction of a greater quantity of gas from the nozzle of valve 29, thereby maintainin a perfect mixture until the second nozzle 0 valve 30 is brought into operation, thus sup lyin all the air and gas mixture required fldr al speeds of the engine. The casing of the mixing chamber 2 is arranged immediately above the casing 1, the two casings being preferably screwed together as at 33. The lower wall or floor of the casing 2 is provided with a central opening, which is of a proper size to just receive the upper free'edge of the inner concentric wall or casing 1. The upper part of the casing 2 is provided with flanges 34 by which the carbureter may be bolted or otherwise secured to a pipe or other portion of the engine through which the gaseous mixture is introduced. The throttle valve 35 of ordinary construction is pivotally mounted in the upper portion of the mixing chamber 2 and is controlled by the lever 36 arranged outside the casing in any usual and well known manner.

It will be observed that the hollow sleeve 31 normally rests upon the annular seat 32, though it is free to rise and fall with respect thereto, in accordance with the suction of the engine in drawing in the air and gas mixture. The cylindrical body portion of the sleeve 31 is guided in its movement by inwardly projecting ribs 37 formed upon the inner surface of the passage way 28. These ribs are usually set at an angle and may be slightly curved as clearly shown in Fig. 5 and in dotted lines in Fig. 3 so that the air entering the passage-way 28 outside the sleeve 31 is given a twisting movement. The sleeve 31 is limited in its upward movement by projecting detents 39 which are fastened into the lower portion of said sleeve. They project a sufficient distance beyond 'the.

sleeve to engage the bottom of the casing l in preventing the said sleeve from being lifted too high. The casing 1 is provided with the usual glazed sight opening 38 so that the height of the fluid in the said casing can always .be' inspected.

In using the carbureter the gas producing liquid is fed into the same through pipe 3 and maintained at a-suitable height within the casing 1, by the action of the hollow float 4. When the engine is first started or' 27. The sleeve 3]. will thus automatically control the feed of air and additional gasolene to the carbureter in accordance with the demands made by the engine.

What I claim is 1. A carbureter mechanism comprising a casing having a central opening connecting the interior With the atmosphere, a valve seat being formed at the inner end of said opening a reciprocating valve having a flared inner end to engage said seat, an in let nozzle for gasolene extending within said opening and into said valve and a second inlet nozzle extending into said opening outside the valve, the feed of gasolene through said nozzles being controlled by the movement of said valve.

2. A carbureter mechanism comprising a casing having a central air passage extending through the same and into the mixing chamber of the carbureter, needle valves eX- tending into said passage for introducing carbureted material, a reciprocating hollow sleeve mounted in said passage, and capable of closing the discharge from one of said needle valves, the suction of the engine connected with the carburetor operating to move the valve and effect the introduction of more gasolene through the needle valves and the said central passage.

3. In a carbureter, a mixing chamber, an air passage leading to said mixing chamber, said air passage having a valve seat at its upper end, a conical tubular member resting upon said valve seat, a fuel nozzle extending up into said conical member, and an auxiliary fuel passage opening into the space around such conical member.

In Witness that I claim the foregoing I have hereunto subscribed my name this 28th day of November, 1910.

N. C. STAMPS.

Witnesses:

EDMUND A. STRAUSE, EDITH STADLMAN.