US658127A - Gas or gasolene engine. - Google Patents

Description

No. 658,!27. Patent edMSepti-I S, I900.

J. J..S|MMONDS.

GAS 0R GASOLENE ENGINE.

(Application filed Mar. 15, 1900.)

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NITED' STATES PATENT OFFICE.

JOHN J. SIMMONDS, on DEVON, KANSAS.

GAS OR GASOLENE ENGINE.

SPECIFICATION forming part of Letters Patent No. 658,127, dated September 18, 1900.

Application filed March 15, 1900. serial No. 8,781. (No model.)

To all whom it may concern:

Be it known that I, JOHN J. snlnvronnsa citizen of the United States, residing at Devon,

vide means for heating the air before it is mixed with the fuel, whereby if gasolene be employed as motive power it will be more thoroughly vaporized by the heated air before or at the time of its introduction to the engine-cylinder.

With these and other objects in view the invention consists in certain features of construction and combination of parts, which will be hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a vertical sectional view through the cylinder on a line with its ports and through the valves for controlling the ports, the piston being shown in the position it assumes in the com pletion of its first stroke and the valves in the position to which they are shifted at the instant the piston uncovers the piston exhaust port. Fig. 2 is a similar view through the side of the cylinder and its exhaust-ports, showing the positions the valves assume when shifted by the governor. Fig. 3 is a side elevation of the governor when the valves are in the position shown in Fig. 2. Fig. 4. is a similar view of the governor when the valves are in the position shown in Fig. 1. Fig. 5 is a detail view showing the connections of the arms 27 28 to the sleeve 29'.

In the drawings the same reference'chara'c ters indicate the same parts of the invention.

1 denotes the engine-cylinder; 2,the piston; 3, the piston exhaust-port, (so called as it is opened and closed by the piston,) and 4 the final exhaust-port. I j

5 denotes an exhaust-pipe having valvecasings 6 and 7 at its ends, the former pr'ovided with valve-seats 8 and 9 and the latter with a valve-seat 10. .7

11 denotes an air-supply pipe which preferably surrounds the exhaust-pipe and is provided at its lower end with air-inlet openings 12 and communicates at its upper end with a mixing-chamber 13, which leads to the upper end of the engine-cylinder.

14 denotes a valve-rod which works in the exhaust-pipe and has its lower end projecting through a stuffing-box 15 of the valve-casing 7. Fixed to the upper end of the valve-rod is a final exhaust-valve 16, adapted to seat on the seat 9 of the valve-casing 6. l7 denotes the piston exhaust-valve of greater area than the final exhaust-valve and mounted to slide upon said rod and adapted to seat on the'seat 10. A shoulder or stop 18 is carried by said rod and in the upward movement of the valve jects through the top of the mixing-chamber and has coiled around it a spring 21, the energy of which is exerted to hold the valve to its seat. Thevalve is opened by the suction of the piston and closed by the spring and is within the path of movement of the valve 16.

22 denotes a gas or gasolene inlet valve having a conical point 23, working in a conical seat 24 in the fuel-inlet pipe 25. The stem of this valve projects upward through the top of the mixing-chamber and is provided with a diaphragm 26, located in said chamber and adapted to be moved upward .by the suction of the piston and to open the tween the pivoted block 30 and the head 34 and exerts its energy to hold said head into engagement with the socket of the arm 27.

A governor 37 is used to close the final exhaust-valve when the engine-crank is on an upper center, which may occur at any revolution, even or uneven. This governor comprises a pair of arms 38, carrying balls 39 at their outer ends and having hook-shaped in ner ends 10, pivotally mounted upon brackets 41, fixed to the drive-shaft 42 of the engine. The free ends of the arms are normally drawn toward each other by a retractile spring 43, connecting the balls and are adapted to move outwardly or away from each other against the resistance of the spring by centrifugal force. A sleeve 14 is slidably mounted on the engine-shaft and carries a hook or like contactpiece 45, adapted to engage the hooked end 36 of the rod 14 to draw said rod downwardly. The sleeve is also provided with a circumferential groove 16 to receive the hooked ends 40 of the pivoted arms. The motion of the arms 38 in or out thus causes the said hooked ends 40 to slide the sleeve back and forth on the shaft and to move the contact-piece 45 into and out of the path of the hooked end'36 of the rod 14. The direction of revolution of the shaft is indicated by the arrows in Figs. 3 and 4, and by reference to these figures the operation will be readily understood.

In operation it will be assumed that the piston has been moved to the extreme end of its stroke, as shown in Fig. 1 of the drawings, in which position the piston has uncovered the piston exhaust-port. While the piston is moving toward the lower end of the cylinder the valves 16 and 17 are seated on their respective seats, and the instant the piston uncovers the exhaust-port 3 the gases within the cylinder will escape through said port and lift the valve 17 from its seat. This movement of the valve upward lifts the rod 14 and also the valve 16 from its seat. After the valve 16 has been unseated it is held in that position by the arms 27 28, while the valve 17 drops to its seat 10 and prevents any of the escaping exhaust-gases rushing through the port 3 in advance of the lower end of the piston, which in the meantime has about completed its upward stroke. The valve 19 is held closed by the valve 16 when the latter is in its elevated position, thus prevent-' ing the piston prematurely sucking in light charges of fuel and exhausting them without being ignited when the engine is running on a light load. When the speed is high and the load light, the governor will not actuate the valve-rod l4 and the valve 16 will remain open and allow the piston to work free to the atmosphere. When the speed is reduced, the governor will actuate the rod 14:, draw it downwardly into the position shown in Fig. 2, and close the valve 16, thus permitting the pistonto suck in a charge from the mixing chamber, the valve 19 being opened by such suction. The working cycle of the engine is thus repeated automatically. As the air is drawn into the pipe 11 through the openings 12 by the suction of the piston it raises the diaphragm 26, thus opening the needle-valve and permitting of a supply of fuel, which if in the form of gasolene mixes with the air which has been heated by passing up through the air-pipe, thus thoroughly vaporizing said gasolene, so that the mixture is supplied to the cylinder in the best possible condition.

It will be noticed that the rod is held in either of the positions shown in Figs. 1 and 2 by the arms 27 28 until actuated in one direction by the governor or in the other direc tion by the pressure of the gas on the valve 17.

From the foregoing description, taken in connection with the accompanying drawings, the construction, operation, and advantages of my improved gas or gasolene engine will be readily apparent without requiring an extended explanation.

It will be seen that the engine is simpleof construction, that said construction permits of its manufacture at small cost, and that it is exceedingly well adapted for the purpose for which it is designed.

Various changes in the form, proportion, and theminor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described the invention, what is claimed, and desired to be secured by Letters Patent, is

1. In a gas or gasolene engine, the combination with the cylinder having exhaustports; of a piston adapted to open and close one of said ports, an exhaust-pipe communieating with said exhaust-ports and provided with valve-casings, a valve-rod, having a lug thereon, valves attached to said rod and adapted to seat in said casings, one of the valves having a loose connection with the valve-rod and adapted to contact with said lug to lift the rod, whereby after the port has been opened by the piston and the valve-rod lifted to unseat the valves, the loose valve will be permitted to fall to its seat, substantially as and for the purpose set forth.

2. In a gas or gasolene engine, the co1nbination with the cylinder having exhaust ports; of a piston adapted to open and close one of said ports, an exhaust-pipe communicating with said exhaust-ports and provided with valve-casings, a mixing-chamber communicating with one of the valve-casings, a valve-rod having a lug thereon, valves attached to said rod and adapted to seat in said casings, one of said valves being fixed to said rod and the other having a loose connection with the valverod and adapted to contact with said lug to lift the rod, whereby after the port has been opened by the piston and the valve rod lifted to unseat the valves, the loose valve will be permitted to fall to its seat, and an inlet check-valve located in the with valve-casings, a valve-rod having a lug' thereon, valves attached to said rod and adapted to seat in said casings, one of the valves having aloose connection with the valve=rod and adapted to contact with said lug and lift the rod, whereby after the port has been opened by the piston and the valverod lifted to unseat the valves, the loose valve will be permitted to fall to its seat, said valve having a greater area than the other valve, substantially as and for the purpose set forth.

4:. In a gas or gasolene engine, the combination with the cylinder having exhaustports; of a piston adapted to open and close one of said ports; an exhaust-pipe communicating with said exhaust-ports and provided with valve-casings, a mixing-chambm' communicating with one of the valve casings, an air-pipe surrounding the exhaust-pipe and communicating with the mixing-chamber, a.

fuel-supply pipe leading to the miXing-cham her, a valve-rod carrying a lug or contact device, valves attached to said rod and adapted v to seat in said casings, one of said valves being fixed to said rod and the other having a loose connection with the valve-rod and adapted to contact with said lug to move the valve inward, whereby after the port has JOHN J. SIMMONDS.

Witnesses:

H. A. ANDERSON, JAS. MCGINNIS.

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