US745063A - Carbureter for gasolene-engines. - Google Patents

Description

No. 745,063. PATENTED NOV. 24, 1903.

' P. JENNESS.

CARBURETER FOR GASOLENE ENGINES. APPLICATION FILED SEPT. 5. 1903.

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tjrvi'ri n dramas Patented November 24, 1903.

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PETER JENNESS, OF PHILADELPHIA, PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 745,063, dated November 24, 1903.

Application filed September 5, 1903. Serial No. 172,083. (No model-J T0 ctZZ whom it may concern:

Be it known that 1, PETER JENNESS, a citizen of the United States, residing; in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Carhureters for Gasolene-Engines, of which the following is a specification.

My invention consists of a novel construction of a float-feed carburetor for a gasoleneengine, all as will be hereinafter set forth.

Figure 1 represents a vertical sectional View of a carburetor embodying my inven- Fig. 2 represents a Vertical sectional View of a modification showing another em bodiment thereof.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings, 1 designates a carbureter consisting of a fioat-chamber 2, having a float 3 therein, which is connected by a rod 4: to the ball-valve 5, which controls the flow of the gasolene through the pipes 6 and 7.

8 designates a passage leading laterally from the lower portion of the float-chamber and discharging upwardly into the dischargenozzle 9, which latter is provided with the threaded portion 10 and the shoulder 11, said threaded portion being adapted to engage a similarly-threaded portion in the lower wall 12 of the commingling-chamber 13.

1 1 designates an air-inlet leading to the commingling-chamber, the ingress of the air being controlled by the port 15 and the valve 16, which latter consists of a shell having the top portion 17, with the hub 18, to which is secured, by a set-screw or other fastening means, the arm 19, which is adapted to be connected to a suitable hand-lever. (Not shown.) The hub 18 projects through the head 20, the inner portion of said hub being threaded and adapted to engage the threaded portion 21 of the stem 22, whose lower portion terminates in the head 23, which is adapted to coact with the valve-seat 24.

25 designates an arm which is attached to the upper portion of thestem 22, which protrudes beyond the hub 18, said arm 25 being adapted to lead to a governor of suitable construction.

26 designates the outlet-passage whereby feature of making the elongated dischargenozzle 9 in a piece separate from the wall 12, so that it can be readily removed therefrom for the purpose of inspection or cleaning, since,as is well known in devices of this character, the surfaces common to the valve 23 and its seat are likely to become gummed and by my construction upon simply removing the head and the shell or air-valve 16 the valve 23 and its seat become readily accessible.

I desire to further call attention tothe fact that bylocating the valveseat 24 in substantially the position seen in Fig. 1 at or near the middle of the chamber 13 a large commingling-chamber is formed above the valve, wherein the air which enters at the inlet 14 is thoroughly commingled with the gasolene before passing through the opening 26 to the engine. 1

It will further be apparent that when the hand-lever (not shown) and the arm 19 are oscillated by reason of the threaded connection of the stem 22 with the internally-tlneaded hub 18, the gasolene-valve 23 is simultaneously operated in conjunction with the airvalve 16, having the port 15 therein, so that a maximum or minimum quantity of air and gasolene maybe admitted to the commingling-chamber above the valve 23, according to the will of the operator, and that, furthermore, the engine-governor (not shown) operating upon the arm will at the proper times cause the valve 23 to automatically adjust itself, so that the required quantity of gasolene and no more will be admitted.

I have deemed it unnecessary to show the connection to the governor and the connection to the hand-lever, since the construction of these devices will be apparent to those skilled in this art, and I have also deemed it unnecessary to enter into any detailed description of the operation of the float 3, its valve 5, and their adjuncts, since their construction and operation will also be apparent portion 29 of the stem 30 operates, said stem being provided with a valve 31, having a'seat 32, whereby the flow of the gasolene is controlled, said gasolene passing outwardly through the ports 33 into the comminglingchamber 34, contained within the shell 35, comprising the air-Valve, and which is of the same construction as the valve 16, already described.

The device seen in Fig. 2 is provided with the air-inlet opening 36 and the dischargeopening for the commingled air and gasolene 37, corresponding to the similar parts seen in Fig. 1. In the construction seen in Fig. 2, however, the stem 30 passes freely through the hub 38, so that it can turn independently of the same, said hub having the arm 39 thereon which leads to a hand-lever, (not shown,) while the upper portion of the stem 30 has the arm 40 thereon, which is suitably connected to a governor. (Not shown.) It will consequently be apparent that in the construction seen in Fig. 2 the oscillation of the arm 39 will permit the requisite quantity of air to enter the inlet 36, While the operation of the arm 40 through the governor or other means will control the flow of the gasolene according to requirements.

In both the construction seen in Figs. 1 and 2 it will be apparent that the gasolene-nozzle terminates approximately in the central portion of the commingling-chamber and is readily accessible for purposes of inspection or cleaning, as has been explained with respecttothe nozzle 9.

It will be apparent that changes in the construction and manner of assembling the above parts may be made by those skilled in the art which will come within the scope of my invention, and I do not, therefore, desire to be limitedin everyinstance totheexactconstruction herein shown and described.

Having thus described my invention, what I claim as new, and desire to secure by Let-ters Patent, is

1. In a carbureter, a float-chamber adapted to contain gasolene, a commingling-chamber in proximity thereto, a passage leading from the lower portion of the gasolene-chamber, a gasolene-discharge nozzle detachably connected with the lower Wall oflhe comminglingchamber and having its upper end terminating at substantially the middle portion of the latter, an air-inlet, an air-valve therefor, a

valve adapted to control the discharge of gasolene from said discharge-nozzle and having a threaded stem, a passage for conveying the commingled air and gasolene from the commingling-chamber, and an internally-threaded hub on the upper portion of said air-Valve, the threads thereon being adapted to engage the externally-threaded portion of the gasolene-valve stem.

2. In a carbureter, a float-chamber adapted to contain gasolene, a commingling-chamber in proximity thereto, a passage leading from the lower portion of the gasolene-chamber, a gasolene-discharge nozzle detachably connected with the lower Wall of the comminglingchamber and having its upper end terminating at substantially the middle portion of the latter, an air-inlet, an air-valve therefor, a valve adapted to control the discharge of gasolene from said discharge-nozzle and having a threaded stem, a passage for conveying the commingled air and gasolene from the comminglingchamber, an internallythreaded hub on the upper portion of said air-valve,

the threads thereon being adapted to engage the externally-threaded portion of the gasolene-valve stem, an arm mounted on said hub and an arm mounted on said valve-stem.

3. In a carbureter, a float-chamber adapted to contain gasolene, a passage leading from said chamber, a comminglingchamber in proximity to said gasolene-chamber, a detachable nozzle having its lower end threaded and provided with a shoulder and in engagement with the lower wall of said comminglingchamber, a gasolene-valve controlling said nozzle, a shell or cylinder Within said commingling-chamber adapted to serve as an airvalve, an air-inlet in the lower portion of said commingling-chamber controlled by said airvalve, a top wall for said air-valve, a hub projecting upwardly therefrom, an arm connected to said hub, said gasolene-valve stem passing through said hub and being in threaded engagement therewith, an arm connected with said valve-stem and a passage leading from the upper portion of said commingling-chamber for conveying the commingled gasolene and air to the desired point.

PETER JENNESS.

Witnesses:

E. HAYWARD FAIRBANKS, O. D. MoVAY.

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