US1043583A - Gas-engine. - Google Patents

Description

G. E. FORRY. GAS ENGINE. PLIOATION FILED JUNE a, 1911.

3 SHEETS-SHEET l.

Patented Nov. 5, 1912.

G. E. FORRY.

GAS ENGINE. APPLIUATION FILED JUNE 3, 1911.

1,043,583. Patented Nov. 5, 1912.

3 SHEETS-SHEET 2.

G. E.' F'oRRY. GAS ENGINE. APPLICATION FILED JUNE 3, 1911. 1,043,583. i Patented N0v.5, 1912.

3 SHEETS-SHEET 3.

/NVENTo/e,

@nonoui E. Forum', or BRNSWIGK, itARYLAND. y

GAS-ENGINE.

Specification of Letters Patent.

Patented Nov. 5, 1912.

Application tiled .Tune 3, 1911... Serial No. 631,122.

To all who/m, it may concern.

Be it known that I, GEORGE E. FoRRr, a citizen of the United States, residing at Erunswiek, in the county of Frederick and State of Maryland, have invented new and 'useful Improvements in Gras-Engines, of which the following is a specification.

rlfhis invention relates to improvements in gas engines, and more particularly to a construction whereby one or more of the cylinders in a multiple cylinder gas engine may be converted into an`air pump. A

This invention is particularly contemplated for installation upon gas engines in automobiles. and the compression stroke of the piston in one or more of the cylinders can be utilized' in iniiating the tires. The invention'inay as well be installed uponstationary engines when it is desired to compress air in a reservoir or for any other purpose.

The advantages of utilizing one or more of the cylinders upon an automobile for pumping up the tires by operating the enf gine while the automobile is stationary is obvious. The other applications to which this invention may be put in connection with other gas engines is also obvious.

lVhile the preferred forms of this. invention are illustrated in` the l.accompanying sheets of drawing, yet it is tobe understood that minor detail changes may be made without departing from the'scope thereof.y

All of the figures upon the drawing illustrate this invention as applied to automobile engines, yet it is also to be understood that this invention may be applied as well to other forms of gas engines having multiple a double cylinder engine.

cylinders and it is so contemplated as a part of this invention.

Figure 1 is a view in side elevation of any automobile with part of the hood broken away to disclose this invention as applied to Fig. 2 is a .view in top plan of a four cylinder engine to which this invention has been applied in which a separate mixture pipe leads from the carbureter to each cylinder. Fig. 3 is a similar View of a four cylinder engine in which the cylinders are cast in pairs and a single mixtur pipe leads vtrom the Catrbureter to each pair of cylinders. Fig. 4l is a' similar view in which the mixture is led from the carbureter by a manifold 'connection to each cylinder. Fig. bis a view in side elevation of a multiple cylinder engine in which the spark plug is inserted inthe side with parts broken away to illustrate the appli-cation of this invention to this form of engine. Fig. 6 is an enlarged detail view in vertical longitudinal section of an air inlet valve, taken upon lines A-A of Fig. 7,1001(- ing in the direct-ion of the arrows. Fig. 7 is an enlarged detail View in Ahorizontal lon gitudinal section of an air inlet valve, taken on the line llit-7B of Fig. 6. Fig. 8 is an enlarged detail view in vertical section through an air discharge valve. Figs. 9, 10 and 1] are enlarged sectional views taken at righ-t angles to Fig. 8 illustrating the operation in detail of a part of an air discharge valve. Fig. 12 is a top plan view.` of a multiple Vcylinder engine in which the manifold from the carbureter makes a direct connection to each cylinder. Fig. 13 is avertical sectional view showing the application of the air inlet valve to the form of engine shown in Fig.

'13. Fig. 14 is a. detail view'partly in section of a `strainer.

This invention contemplates in separating one of the cylinders of a multiple gas engine from the carbureter by placing a valve between the cylinder and the source, of mixture by which the mixture may either be admitted to that cylinder or the mi: ture may be cut oli andr air admitted to that .ylinder in its place. For the purpose of l iis application this valve will be termed the .wir inlet valve. Then if the engine is not already supplied with a pet cock by which the cylinder may be scavenged at times or may be primed when necessary, it will be supplied with a valve termed for the purposeof this application, an air `dischargel valve, otherwise this air discharge valve will be substituted for the pet cock. It will be noted that by this construction and arrangement. this invention may be installed upon any multiple cylinder engine without any interference with the regular operation of the cylinder or regular intake and eX- haust Avalves or the ignition system. The general operation of the air. inlet and air discharge valves will be explained and then their application to the diierent forms of :multiple cylinder engines and their operation in converting one or more cylinders into an air pump.

The airinlet valve 1 comprises a .casing 2 adapted to be inserted` in the mixture supply pipe at any convenient point Ibetween tween fine wire mesh or screening by a circular cap 6 engaging theouter mesh or screening and the flange orrim 4. The central portion of the valve 1 is preferably cylindrical in horizontal section and within this cylindrical portion is rotatably mount- `ed a hollow valve member 7. The side walls of the valve member 7 are provided with lthree ports 8, 97 and 10, and the top 11 is provided with a central valve stem 12 and lhand wheel 13. Two of the ports 8 and 9 are arranged diametrically opposite and the third port ,10 onone side intermediate between them so that when in the position shown in Figs. G and 7 the mixture will be free to flow freely from the carbureter to the cylinder and the air port 3 will be'closed by the solid side wall of the valve member 7. By rotating the hand wheel 13 a quarter of a turn in one direction one of the ports will register with the air port 3 and another port with the supply pipe while the opposite connection to the supply pipe will be closed by the solid wall of valve member 7. By proper arrangement of the ports 8, 9, and 10 the supply from the carbureter may be cut olf and the cylinder opened to the atmosphere through the air port 3. A stop may be placed to prevent rotation of the valve member 7 in the opposite direction so as to prevent the carburetor being openedto the atmosphere.

The cylinders of most gas engines are supplied with a pet cock for scavenging and priming the cylinders and in such case the regular pct cock is exchanged for the one shown in Figs. 8, 9, 10 and 11 in connection with the air discl'iarge valve shown in Fig. 8, otherwise the air discharge valve and pet cock are attachcdat a convenient point to the upper part of the cylinder. The -pet cock 11- is provided with a three way valve member 15 having one port leading directly therethrough and another port leading therefrom at right angles thereto, and a priming cup 16 is provided upon one side leading into the Valve lintermediate the straight through passage. From the top of the pet cock valve leads an air pipe 17. At the point of connection between the pet cock 11- and the air pipe 17 a check valve 1'8 of preferably the balltype is provided. Then the pet cock 14 is in the position shown in F ig. 9 the air pipe 17 will be in direct com` munication with the interior of the cylinder. When -the pet cock 14 is in the position vinder inclosed within the water jacket.

ipesee shown in Fig. 10 the communication te the cylinder will be entirely closed and when in the position shown in Fig. 11 the interior of the cylinder will be in conmiunication with the atmosphere through the priming cup lo.

Fig. 1 shows an ,automobile provided with a two cylinder engine having a. mixture pipe leading from each cylinder to the carlnireier. ln this type of engine to accomplish the object of this invention an air inlet valve 1 is placed in the mixture pipe between one cylinder and carburetor and that cylinder is provided with the air discharge valve. The air pipe preferably follows the frame of the automobile and terminates in the tool box 19 where a rubber tube or hose E20 may be attached to lead to the valves upon the dit ferent tires. lVhen it is desired to inflate a tire the hose and tube are connected to that tire, the air inlet valve operated to admit air into the cylinder and the air discharge valve operated to connect the air tube Q0 and air pipe 17 to the interior of the cylinder and the engine started and operated by the other cylinder. As the regular operaiing valves of the cylinders have not been altered one cylinder will operate as usiril while the other as the mixture intake valve rises will draw in air through the air intake valve and the compression stroke of the piston will discharge the compressed air through the air discharge valve. the air pipe and hose or air tube intothe tire.

Fig. 2 illustrates a four cylinder engine having a separate mixture supply pipe leading from the carbureter to each cylinder. ln such an arrangement it is .preferable to insert the air inlet valve 1 in thc mixture pipes leading to thc alternate cylinders and providing these alternate ,cylinders with thc air discharge 'valves and then connect l he air pipes 17 from these valves as at 2.1.

Fig. 3 shows a four cylinder engine. hav-` ing the cylinders cast in pairs and a single mixture supply pipe leading to each pair. In this form the air inlet valve is placedin one mixture supply pipe between the carbureter and one pair and that pair provided with air discharge valves and air pipes 17 connected as at-Ql.

Fig. 4; shows a four cylinder engine having four separate cylinders but each cylinder connected with the carburetor tln'ough a manifold mixture supply 22. Each cylinder is connected by an individual pipe 2% to the manifold and in such a case the air inlet valves are placed in the alternate pipes 23 and these cylinders connected in. the same manner as in Fig. 2.

Fig. 5 shows the applica tion of this inven` tion to an engine having the spark plug in sertcd in the side of the cylinder or mixture intake valve and having the top of the cylln this form a T-joint 24 having the tail member of the same size as the spark plug is placed in the cylinder in lieu of the spark plug and the spark plug 25 inserted in one side andthe air discharge valve in the other end as shown. The air inlet valve is placed between the cylinder and carbureter in the manner shown upon the other figures.

In some gas engines the manifold makes a direct connection to each cylinder and in this case it is necessary to place a pipe 26 in the mixture intake port of 4'one cylinder which pipe leads through the manifold to the atmosphere as at 27. The air inlet valve l is placed in thepipe 2G with the valve stem 12 extending therethrough and arranged so that the side opening will communicate with the interior of the manifold and then straight through ports will connect the cyliiider to the air through the opening 27 in the pipe 26.

In some cases the ordinary pet cock is not provided and only the spark plug opening is provided in the cylinder head. In such a construction this invention is applied in the same manner as shown on Fig. 5. If found more convenient an L-joint may be substituted for the T-joint in which one armis secured in the spark plug orifice With the air discharge valve in the other arm and the spark plug inserted at the juncture of the two arms.

If desired a hair strainer 28, Fig. 14, may- What I claim is 1. In a device of the character described, an air inlet valve in the mixture supply pipe between the source of mixture and a cylin-l "der, and that cylinder provided with an air prising a casing communicating with the mixture supply pipe at each end and having an air port provided with a strainer and a discharge valve, said air inlet valve comrotatable valve member adapted to lead the p mixture to the cylinder in one position and in another to cut off the mixture and place the cylinder in communication with the air.

2. Ina device of the character described, an air inlet valve in the mixture supply pipe between the source and a cylinder, and that cylinder provided With a pet cock-having a three way'valve leading to the atmosphere in one position, an 'air pipe connection, a

GEORGE E. FoniiY. Witnesses A LANGDON MOORE, CAROLINE MORGAN.

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