US425879A - Igniting device for gas engines - Google Patents

Description

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W. HECKERI'. IGNITING DEVICE EOE GAS ENGINES. No. 425,879.

Patented Apr. 15, 1890.

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UNITED STATES PATENT OEEICE.

WILLIAM I'IECKERT, OF YONKERS, ASSIGNOR TO THE KORTING GAS ENGINE i COMPANY, (LIMITEDJ OF NEWT YORK, N. Y.

IGNITING lDEVICE FOR GAS-ENGINES.

SPECIFICATION forming part of Letters Patent No. 425,879, dated April 15, 1890.

Application filed June 15, 1889. Renewed March 19, 1890,. Serial No. 344,570.

(No model.)

T0 all whom it may concern:

Be it known that 1, WILLIAM HECKEET, a citizen of the United States, residing at Yonkers, in the county of IVestchester and State of New- York, have invented certain new and useful Improvements in Igniting Devices for Gas-Engines; and I do hereby 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.

My invention consists in a certain improved form of igniting device for gas-engines, hereinafter to be described and claimed.

` In the drawings, Figure 1 is a side view of a gas-engine, showing my ignitor applied thereto, the end of the engine-shaft and the gearing attached thereto being removed. Fig. 2 is an edge view of the lever and camroller for operating the ignitor. Fig. 3 is a side view of the same with the cam shown in dotted lines and the igniting device shown in section. Fig. 4 is a longitudinal section and an end view of the hollow valve-plunger in said ignitor. Fig. 5 is a longitudinal section and end view 'of the thimble; and Fig. 6 shows similar views of the barrel, all forming part of said ignitor. Fig. 7 is a detail view of a shield for the igniting-j et.

The engine to which I have shown my invention applied is of similar construction to that described in applications, Serial Nos. 314,458 and 314,459, iled on even date herewith, in which B is the main shaft, from which suitably gearing E andC transmits motion to the cam-sleeve D', revolving on the stud O and carrying the cam D, all as shown in Fig. 1.

A is the engine-frame.

The lever E is mounted on the stud e and vibrated by means of the cam-roller c, resting against the cam D, and the spring F which surrounds the rod F, and is confined between the ange of the engine-frame and the adjustable nut f. The evident effect of this gearing is to give the ignitor its necessary quick motion once in every two revolutions the charge of the engine at the .moment when is to be exploded.

The ignitor proper consists of the hollow thimble K, which is screwed into the valvecasing Y of the engine and is in communication with the passage leading to the enginecylinder, through which the ingoing charge of gas and air is drawn. The flange K renders the joint gas-tight between the valve-casing Y and the thimble K. On the4 thimble is placed the sliding barrel G, which has a cap G and the perforationsl'l. Into anotch g is inserted the end of the cam-lever E, which transmits Inotion to the barrel of the ignitor 6o` at the proper moment. Vithin the thimble K is placed the hollow valve-plunger L, which has its seat L and its bored-out portion O. This interior portion is permanently in communication with the interior of the valvecasing and the valve-passages by means of the fine perforation M in the end of the valveplunger. 'Vhen the valve-plunger is lifted from its seat, the larger holes N N are uncovered by that motion. The valve-plunger 7o has the wings P I to guide it and the cutaway portions p to enable' the gas to flow around and get at the openings N..

In the cap G there is inserted an adjustable plug I, which strikes against the end of the hollow valve-plungerwhen the barrel G is moved, so as to close the end of the thimble K. On the end of this adjustable plugaprojection X, of any suitable incandescent material-such as lava--is placed so that when 8o the end of the thimble is closed by the plug I this incandescent tip is introduced into the interior of the .hollow valve-plunger L. An igniting-jet burns at the orifice S of the gaspipe R, which is controlled by the valve r, and the flame is protected by the shield Q. The supply of gas for the running of the engine is admitted through the inlet-pipe T.

The method of operation in my invention is the following: The igniting-jet from the 9o orifice S burns continuously, the flame passing through the perforations N through the barrel of the ignitor and keeping the tip X in a state of incandescence. During the compression period of the engines cycle of operations a ne stream of gas and air will be forced through the perforation M into the interior O of the hollow valve-plunger, and will be ignited by the igniting-jet; but the perforation M is so iine that it is impossible for Ioo the flame to be transmitted back through it, on the principle that flame is not transmitted through fine apertures, as is well known from the operation of the Davies safety-lamp. At the proper moment the cam D reciprocates the barrel and the cap carrying the adjustable plug I as it closes the end of the thimble this, the incandescent tip X insures the ignition of `the gas which pours into the interiorof the valve-plunger when the latter is lifted'oit its seat in the manner described, Aand renders the ignition of the charge positive and uniform.

vI-Iavingtherefore described my invention, what I claim as new, and desire to protect by Letters Patent, is

1. In an igniting device for gas-engines, the combination of the thimble whose interior is in communication with the engine-cylinder, the hollow valve-plunger seated in said thimble and provided with a tine perforation, by which the interior of the valve-plunger is kept permanently in communication with the engine-cylinder, and also provided with other large perforations, which are uncovered when the valve is lifted E its seat, a barrel which slides on the thimble and terminates in a cap, through which there are perforations for the passage of the igniting-j et, and an adj usti able plugr in the end of said cap, so arranged as to strike the endof the hollow valve-plan ger andto lift it from its seat, together with means for reciprocating said barrel, substan tially as described.

2. In an igniting device for gas-engines, the

vcombination of the thimble whose interior is in communication with the engine-cylinder, the hollow Valve-plunger seated in said thimble and provided with a fine perforation, by which the interior of the valve-plunger is permanently kept in communication with the engine-cylinder, and also providedwith other meansfor reciprocating said barrel, snbstan tially as described.

3. In an igniting device for gas-engines, the combination of the thimble whose interior is .connected with the engine-cylinder, the hollow valve-plunger seated inisaid thilnble and 4provided with a tine perforation, by which the interior of the valve-plunger is permanently `connected with the engine-cylinder, and also provided with other larger perforatio11s,wl1ich are uncovered when the valve is lifted oit its seat, together with the tip of incandescent material, which is alternately introduced into the interior of said valveplun ger, thereby lifting it from its seat, and withdrawn and exposed to a constantly-burning `substantially as described.

jet of flame,

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

WILLIAM HECKERT. Witnesses: r

A. P. SMITH, WAsHN. DANENHowER.

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