US659095A - Gasolene-engine. - Google Patents

Description

No. 659,095. Patented 00L 2, |900.

J. M. LSEN.

GASOLENE ENGINE.

(Application ledet. 21, 1898.)

(No Model.) 2 Sheets-Sheet l.

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No. 659,095. l Patented oct. 2, |900.

.1. M. oLsEN.

GASDLENE ENGINE.

(Appumion med oct. 21,1895.) (No Model.) 2 Sheets-Sheet 2` UNITED STATES PATENT OEEICEe JOHN M. OLSEN, OF ELKHORN, WISCONSIN.

GASOLENE-ENGINE.

SPEGIFICATION forming part of Letters Patent No. 659,095, dated October 2, 1900.

Application lecl October 21,1898. Serial No. 694,229. (No model.)

T0 cir/ZZ whom, t may concern:

Be it known that I, JOHN M. OLsEN, a citizen of the United States, residing at Elkhorn, in the county of Walworth and State of Wisconsin, have invented certain new and useful Improvements in Gasolene-Engines; and Ido hereby declare the followingto be afull, 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 relates to improvements in explosiveengines, and particularly to one adapted to use gasolene as a fuel. Its main object is to provide for automatically regulating the supply of explosive vapor to the engine-cylinder from and 'in accordance. with the speed of the engine.

Further objects are -that after delivering the `required amount or charge of the explosive vapor to the engine-cylinder the supply of gasolene or oil will be automatically entirely cut off and to deliver the supply of oil or gasolene in the form of a lm or thin stream in contact with the air.

With these and other ends ih view the invention consists in the peculiar construction and arrangement of parts that will be hereinafter fully pointed out.

' In the accompanying drawings I have illustrated an embodiment of my invention, in which- Figure 1 is a side elevation of a gasoleneengine embodying my improvements. Fig. 2 is an elevation, partly in section, on the line 2 2 of Fig. 1,' illustrating the valve mechanism by which the supply of gasoleneis regulated, the governor being omitted for clearness.

Like letters of reference designate corresponding parts in the several figures of the drawings, referring to which- A designates the cylinder of my improved engine, which is mounted on a suitable bed or base and has the rod or stem a of its piston connected with a crank on the shaft l).

The cylinder A is provided with an inletport in its rear end wall, and this alines and communicates with a passage formed in a casing B', secured to said end wall of the cylinder. This passage in the casing B in turn communicates with the supply-duct B5, to the outer end of which is connected the airinlet pipe b. A valve B is arranged to close the inner end of the supply-duct and has its stem extending through the bottom of the casing B. Around said stem, between an enlarged head at the lower end thereof and the casing B', is arranged a coiled spring b5, which act-s to normally maintain the valve B in its seat and prevent the passage of vapor from the supply-duct to the cylinder A.

Gasolene is admitted into the supply-duct through an inlet at one end thereof slightly in advance of the point of connection between said duct and the air-inlet pipe b.

In the embodiment of my invention herein illustrated the gasolene from a suitable storage-receptacle passes through a tube D, to the upper end of which is connected the following-described valve mechanism. A T-shaped casting D has its vertical mem ber e' connected with the aforesaid gasolene-feed pipe D, and the upper end of the passage in this branch e enters a chamber which communicates with a small lateral duct or outlet that extends from said chamber through the horizontal branch of the casting D and opens at its inner end into the aforesaid supply-duct B5. The inner end of this lateral oil or gasoleue duct is adapted to be closed by a valve having a head e2, conforming in cross-section to the mouth @XX of said duct and terminating in a reduced portion eX, adapted to extend into the said duct proper. The stem e3 of this val ve extends across the supply-duct B5 and through an arm D", that `ext-ends laterally from said duct B5. Atits outer end it is connected to the upper end of a lever @4,which is fulcrumed at e5 t0 a support which is projected laterally from the downwardly-extending outer end of the said arm D". for normally holding the lever e4 in such position that the valve controlled thereby will prevent the escape of any gasolene into the duct B5, and .a suitable cam is provided for automatically actuating said lever at predetermined times to move the valve from its seat at the inner end of the lateral duct in the casting D/ and permit gasolene to pass therethrough. As shown in Fig. 2, the fulcrumf-support of said lever e4 is adjustably connected with the arm D".. Itsv stem or shank is threaded and engaged by adjustingnuts e6, arranged on opposite sides of said A spring e7 is provided I arm D". By this means the throw or extent of movement of the lever e* can be readily cont-rolled and varied as desired. I also provide means for varying the size of the opening at the end ofthe said lateral gasoleneduct opposite the valve above described. This consists of a valve e, having its stem extending through the end of the casting D and provided with a suitable handle elo. Said handle is arranged to travel over the surface of a `suitable dial e, bearing suitable indications to disclose at any time the relative size of the opening controlled by said valve e".

The automatic valve-controlling inechanism above referred to is connected with and adapted to be actuated directly from the engine-shaft I). This shaft is geared by suitable gearing c with a valve-actuating shaft CZ, that extends longitudinally of the cylinder A, and is mounted in suitable bearings g, provided thereon or on the bed of the engine. On said shaft near its rear free end is mounted a disk E, on one face of which is formed a cam E. This cam E is so shaped that when in the planes of the above-described lever e4 it will at each revolution contact with said lever and through vibration thereof actuate the valve e2. To prevent wear, the outer face of the lower portion of said lever c4, against which the cam E rides, is protected by a supplemental wear-plate es. The disk carrying the catn E is mounted on the shaft d, so as to rotate therewith, but is also capable of movement longitudinally thereof, and means are provided whereby when the engine has acquired a predetermined speed such disk will be automatically adjusted and the cam E moved out of line with said lever e4-that is, whei the engine has acquired or exceeded acertain speed the cam E will be so adjusted that the valve e2 will not open, and therefore no fresh explosive charge will be delivered to t-he cylinder until the speed of the engine has fallen to a cert-ain rate. This adjustment of the cam E is accomplished by means of two weighted leversf, which are pivotally connected to a collaror sleeve f, secured upon the shaft. The rear unweighted ends of these levers engage with the said disk, and when under the inuence of centrifugal force the forward enlarged and weighted ends are forced away from the shaft (Z the said disk will be moved longitudinally of the shaft d toward the sleevef andthe cam E shifted out of line with the lever e4. On the said shaft d is also secured a cam G, by means of which the exhaust-valve, arrangedin a casing F', will be actuated. This cam G is adapted to engage the lower enlarged end of the stem F of the exhaust-valve, and a spring g is fitted about said stem for returning the valve to its normal closed position when the cam G is not in contact with said stem.

The embodiment of my invention herein illustrated is a four-cycle engine-that is, a charge is only drawn into the cylinder at each duces a vacuum in the rear end of thecylin der, and the pressure of air on the underside of the intake-valve B causes said valve to raise, thus opening communication between the supply-duct B5 and the inlet-port of the Cylinder. At the time the piston starts forward the cam E causes the lever c4 to open the valve @2, and thus the air passing across the mouth of said valve becomes charged with the desired amount of gasolene. It will thus be seen that no separate mixing-chamber is required for the mixing or commingling of the gasolene and air and that a uniform flow of gasolene from beginning to end of the suction-stroke ofv the piston is maintained, the mixture of the gasolene or oil and air thus being effected.

It will be observed that the valve e2 is adapted to extend suiiciently Within the bore of the horizontal member of the part D', it havinga forwardly-extending portion of such diameter or cross-section, as shown, to remain in said bore when the valve is unseated and provide an annular or circular space between the walls of said bore and forward portion at that time, whereby when the valve is opened the escaping oil or gasolene will be delivered past the face of the valve into the duct or chamber B5 in the 4form of a film or thin stream into contact, and thus commingle with the air admitted to said chamber or duct. Thus delivering the oil or gasolene prevents the dripping thereof, as would otherwise be the case. The spring b5 is of such strength as to yield readily to the force of said vapor on the under side of the valve B; but as soon as the piston reaches the forward limit of its movement and begins to move back the pressure of the vapor in the cylinder in rear of said piston, aided by the spring b5, closes the valve B. Just as the piston reaches the limit of its backward or rearward movement the charge drawn into the cylinder during the aforesaid forward movement of the piston is exploded and the pist on driven forward. During the forward movement, however, the valves B e2 are not opened, the pressure on the piston side of the former holding it in its seat and the cam E being out of engagement with the lever e4. As the piston moves back again the exhaust-valve is opened by the cam G, and at the next forward movement of the piston the valves B e2 are again opened and a new charge drawn into the cylinder.

Various means and devices may be employed for exploding the gasolene-vapor in the engine-cylinder.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

l. In an explosive-engine, the combination of a valved duct or pipe foi-supplying gasolene or similar Huid, a lever fulcrumed at an intermediate point of its length and having one ICO IOS

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end connected to the Valve in said supply pipe or duct, V'a cam adapted to be driven by the main engine -shaft and to actuate said valve-lever, and means for adjusting the fulorum of said lever and to vary the throw or extent of movement of the end thereof to which the said valve is onneet'ed, vsubstantially as set forth.

2. In an explosive-engine, the combination of a valved duct or pipe for supplyin g gasolene or similar Huid, an arm having a threaded stem carried by a support on the engine, adjusting-nuts engaging said threaded stem on opposite sides of Said support, a lever fuloruined on said arm and having one end oonneoted with the valve in the gasolene-supply duct or pipe, and a cam adaptedto be rotated by the main engine-shaft and to aetuate said valve-lever, substantially as set forth.

- 8. In an explosive-engine, the combination of a valved duct or pipe forsupplyinggasolene or similar Huid, an arm having a threaded stem carried by a support on the engine, adjusting-nuts engaging said threaded stem on opposite sides of said support, a lever fulcrumed on said arm and having one end connected with the valve in the gasolene-supply duet or pipe, and a cam adapted to be rotated by the main engine-shaft and to aetuate said valve-lever, and a governor for controlling said cam, substantially as set forth.

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

JOHN M. OLSEN.

Witnesses:

Jos. F. LYON, S. BREESE, Jr.

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