US1003750A - Starting device for gas-engines. - Google Patents

Description

01F. JENKINS.

STARTING DEVICE FOR GAS ENGINES.

APPLICATION rum) JULY 25,1910.

1,003,750. Patented Sept. 19, 1911 main object UNITED STATES PATENT VOFFIGE.

CHARLES FRANCIS JENKINS, OF WASHINGTON, DISTRICT OF COLUMBIA,

STARTING DEVICE FOR GAS-ENGINES.

Specification of Letters Patent.

Patented Sept. 19, 1911.

Application filed July 25, 1910. Serial No. 573,821.

To all whom it may concern:

Be it known that I, CHARLES FRANCIS JENKINS, siding atWashington, in the District of Columbia, have invented certain new and use- ;thl Improvements in. Startin Devices for Gas-Engines, of which the ibllowing is specification;

This invention relates to that class of devices known as gas-englne starters, and its is the production of a simple mechanism of reliable efficiency especially adapted to pleasure vehicles.

In the accompanying drawings, Figure 1 is a front view of the device as located on the rear cylinder of a gasolene engine as they r are usually situated in an automobile; Fig. 2 is a side view of the cylinder and attac ed devices; 3 a view showin the location "of small cocks,

one on each cylinder, for admittin'g the starting mixture to the several 6 a small cylinder, the lower end of which is m communication-with onebranch of the T, the cylinder having a piston working therein, the stem of which is attached to the lever of the lever-cock- 3;.7 is a cross one side of which communicates with the lower end of the cylinder 6, another side with the gage 8, another side with a safety-valve 9, and the fourth side with a reservoir 10; 11 is a spring on the lever-cockto turn it to open position under proper conditions; 12

a spring located on the same cock ,lever to 45 insure quick opening and closing; 13 is a small lever-cock on each cylinder, the levers of all of'which are actuated by the rod .14 the inner end of which is located within easy reach of the driver; each of these small cocks is connected by the pipe 15 to the pipe 16 which latter is in communication with the reservoir 10.

17 is the usual spark-plug in the top of the cylinder employed to explode the charge: fromthis lug a wire 18 leads to the insulated meta b sale 19 on the disk a citizen of the United States, re-

course,

20 located on the stem .oflthe'lever-cock 3. This metal blade .is so formed and located that when the lever-cockfi is in the open or.

dotted position the blade sh'ort4circu1ts the plug 17 by grounding the wire 18 on a metal part of the motor, The wire 21 communicates with thespark-producing mechanism of the regular motor equipment...,

The operation of the device isas follows:

Assuming the tank 10 containjsayfull charge of explosive gas :un'der pressure,i.the small lever-cocks 13 are openedvb'y "pushing men.

the rod 14 as shown in F1g.- 3'. This1al1ows gas under pressure to flow intoeach cylins der. Two of them will be filled with it, and in two of them, as most motors are made, the

gas is wasted, though in this invention the simplicity of the arrangement is, considered a to more than ofi'se't the small waste involved. Releasing the rod 14 the spring12 returns the valves 13 to the closed position, leaving one or more of the cylinders charged with a" combustible gas,

all automobiles are now fitted. This, of starts the rotation of the engine, which automatically explodes the charge in the second cylinder, although it has been found that the single impu se of the first explosion is ample for causing the motorjto take up its regular cycle.

' When the supply of gas in the reservo1r has dropped to a predetermined amount the spring 11 overcomes the upward thrust of the piston plus the tension of the springf12 and the lever-cock 3 is opened, and the spark-plug isv short-circ'uited. The charge drawn into the cylinder, by-the rotation of the motor, instead of'being exploded asit reaches the top, open cock 3 and ultimately into the reservoir 10. This cycle is repeated at every stroke of the piston until-the pressure in the reservoir has reached a certain redetermined point when the pressure 0 the gas under the iston in the small cylinder 6 pushes the ever up and closes the cock 3. This also, of course, opens the short circuit of-wire 18 and the cylinder immediately takes up its power cycle with the other three cylinders.

This change from "power to pump function, and back again, is, obviously, auto-- matic, and in actual practice appears to be imperceptible under t e ordinary conditions of automobile use. The apparatus is small which is exploded by touch- 3 ing a button, with which latter practically 's forced out through the rangements of the parts the motor begins to turn under the impulse of the gas alone and that it then explodes the charge automatically.

hat I claim, therefore, is-

1. In an internal combustion engine, the combination with a series of explosion cylinders and igniting devices for the same, of a non-explosion cylinder and a plunger therein, means for temporarily rendering the ignition device for one of the explosion cylinders inoperative, thereby converting the cylinder and its piston into a force pump, a conduit leading from the last named cylinder to the non-explosion cylinder to actuate its plungenand means whereby said plunger when thus actuated may restore the inoperative ignition device to operating condition.

2. In an internal combustion engine, the combination of a plurality of power cylinders, one of which, temporarily, acts only as a pump drawing an explosive gas from the carbureter ders and compressing it into a reservoir through a valve arranged toautomatically close when the pressure in the reservoir combination of a reaches a predetermined point.

3.'In an internal combustion engine, the

plurality of power cylinders, one of which, temporarily, acts only as a pump drawing an explosive gas from the carbureter common to all of the cylinders and compressing it into a reservoir through .a valve arranged to automatically close only when the pressure in the reservoir reaches-a common'to all of the cylin valve.

predetermined point, and manually controlled means for distributing this mixture to the several cylinders.

4. In an internal combustion engine, the combination of a plurality of power cylinders, one of which, temporarily, acts only as a pump drawing an explosive gas from the carbureter common to all the cylinders and compressing it into a reservoir through a valve [arranged to automatically close when the pressure in the reservoir reaches a predetermined point and to automatically open whenzthe pressure falls to a certain other point. t

5. In an internal combustion engine, the combination of aplurality of power cylinders; one of which, temporarily, acts only as a pump drawing an explosive mixture from the carb'ureter common to all the cylinders 6 and compressing it into a reservoir through a valve arranged to automatically open and v close, and means for short-circuiting the spark-plug on the pumping cylinder.

6. In an internalcombustion engine, the 6 combination of" a plurality of power cylinders, one of which, temporarily, acts only as a pump drawing: an explosive mixture from the carbureter common to all the cylinders and compressing it into a reservoir through a valve arranged to automatically open and close, and means for short-circuiting the spark-plug on the pumping cylinder simultaneously with the opening, of the 7t In testimony whereof I have affixed my signature in presence of two witnesses.

CHARLES FRANCIS JENKINS. \Vitnesses J. R. VHITE, R. SCHNEIDER.

.Gopies of this patent may be obtained for five cents each, by addressing the f Commissioner of Patents Washington, I). C.

Images