US2004693A - Single sleeve valve engine - Google Patents

Description

June 11, 1935. a. L. GILBERT SINGLE SLEEVE VALVE ENGINE Original Filed Nov. 20, 1935 4 Sheets-Sheet 1 INVENTOR June 11, 1935. a. L. GILBERT SINGLE SLEEVE VALVE ENGINE Original Filed Nov. 20, 1953 4 Sheets-Sheet 2 [dam/"d4. 67/6 6/? INVENTOR M f mm.

N TE RE V an Lv W u is E L G N I 5 June 11, 1935;

Original Filed Nov. 20, 19 4 Sheets-sheaf, 3

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June 11, 1935. I E. L. GILBERT ,0 4, 3

smsma SLEEVE VALVE ENGINE 4 Sheets$heet 4 Original Filed Nov. 20, 195:5

BY J" I I, V

ATTORNEY Patented June 11, 1935 f iir STATES PATENT oFFrcEf SINGLE SLEEVE VALVEWENGINE Edward Leslie Gilbert, Fort Bayard, N. Mex.

n Application 1 Claim This invention relates to single sleeve valv engines and isan improvement over the type. 9 engine set forth in my U. S. Letters Patent granted arch 4, 1930 and numbered 1,749,701 and has for the primary object the provision of a simplified sleeve operating mechanism which reduces the number of parts and permits the cylinders of the engine to be arranged in closer relation, consequently permitting a shorter crank shaft to be employed and materially reduces end thrusts from the sleeves of the cylinder and provides a quieter operating engine.

With these and other objects in view this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which Figure 1 is a side elevation illustrating an engine with improved sleeve valves and showing the compactness of the engine.

Figure 2 is a transverse sectional view taken on the line 22 of Figure 1 showing the operating mechanism for the sleeve valve.

Figure 3 is a fragmentary horizontal sectional view showing the sleeve valves and their operating mechanisms.

Figure 4 is a detail sectional view taken on the line 4 =i of Figure 1.

Figure 5 is a side elevation partly in section illustrating one of the sleeve valves.

Figure 6 is an end elevation illustrating the same.

Figure 7 is a plan view illustrating an attaching ring employed upon the sleeve valve.

Figure 8 is a perspective view illustrating a guide for the attaching ring.

Figure 9 is a plan view illustrating one of the eccentric straps and showing a part of the valve operating means as forming an integral part thereof.

Figure 10 is an end elevation illustrating the same.

Figure 11 is a fragmentary plan view illustrating a cam shaft.

Referring in detail to the drawings, the numeral 1 indicates the cylinders of the engine mounted to a base 2 provided with a crank case 3. The cylinders are suitably water-jacketed and equipped with removable heads 4 each provided with a depending portion 5 extending into a cylinder and spaced from the walls of the latter to form a guide for the upper end of a sleeve valve 6. The cylinders are provided with in- N0vember-20, 1923, Serial No.- 698,908

Renewed May 7, 1935 take and exhaust ports 1 of substantially-tn .mounted in spark plug openings Hi formed in the depending portions 5 for igniting the fuel within the cylinders. Pistons H are reciprocally mounted in the cylinders with the sleeve valves interposed between the pistons and the walls of the cylinders. A crank shaft I2 is journaled in bearings carried by the motor base and are connected to the pistons I] by connecting walls l3. The sleeve valves extend below the lower ends of the cylinders into the base 2 and are provided adjacent their lower ends with annular grooves M to receive valve operating means IS.

The foregoing description sets forth broadly the type of engine forming the subject matter of my patent heretofore. referred to. r

A cam shaft l6 driven from the crank shaft is journaled to the base 2 and is located at one side of the crank shaft and in a plane slightly above the latter and has formed integrally therewith cams IT. The cams are designed for actuating the valve latter each include a sleeve-like element I B journaled upon its respective cam and has formed integrally therewith an upwardly directed arm 19 pivoted to spaced ears 20 formed on one side of an annular member 2| fitted within the groove It.

of the sleevevalve and the latter by being so connected to the cam receives during the rotation of the cam reciprocatory movement for controlling the intake and exhaust ports 1 of the respective cylinder. The member 2| opposite to the ears 20 is provided with a guide lug 22 slidable between the forked portion 23 of a guide 24 depending from the top wall of the base 2.

The sleeve-like member l8 mounted upon the cam is provided with a guide lug 25 operating between a forked portion'26 of 21 and the latter is secured to the top wall and one of the side walls of the base 2.

Extending laterally from the lower end of each of the sleeve valves is a lug 28 to which is journaled one end of a connecting arm 29, the opposite end of which is offset downwardly and pivoted to spaced ears 30 formed on the sleeve-like member l8. The connecting arm 29 includes intermediate and end sections and said sections are pivotally connected, as shown mm. between the sections are reversely arranged to each other so as to cooperate in forming a universal construction within the connecting arm.

The pivots a depending guide During the movement of the sleeve-like member l8 by its respective cam will oscillate the sleeve valve which with the reciprocation of the latter will effectively control the intake and exhaust ports of the cylinder.

The valve operating means having thus been described, it will-be seen that besides efficiently operating the sleeve valve it consists of a minimum number of parts and that the parts are so designed that the operation of the sleeve .valve will be carried out with quietness and eificiency besides the guides provided in the mechanism will resist end thrusts developed by the sleeve valve consequently rendering successfulxop'eration of the engine over a longer period of timve and further with the present valve operating mechanism permits the cylinders of the .engineto beratranged in closer relation and thereby permit the use of a shorter crank shaft as well as; a shorter cam shaft. Having describedthe invention, I- claim:-

An internal combustion engine including a base carrying .a cylinder having intake and exhaust ports and an ignition means for said cylinthe connecting arm 29 der, a sleeve valve having 'intakeand exhaust f ports slidably and rotatably mounted in the cylinder for controlling the intake and exhaust ports of said cylinder, a piston slidable in said sleeve, a crank shaft journaled' to the base, means connecting the piston to the crank shaft, a cam shaft journaled to the base and driven from the crank shaft, an eccentric on the cam shaft, a sleevelike member journaled on the eccentric of the cam shaft, an arm, integralwith the sleeve-like member, an annular member rotatablysecured to the sleeve valve and pivoted to's'aid-arm whereby said sleeve valve may, be reciprocated by the rotation of the cam shaft, a'lug carried by the isleeve valve; a connecting arm journaled to said lugand pivoted to the sleeve-like member and including a universal construction within itself to impart oscillatory, movement to the valve sleeve during the latters reciprocal movement, a 3, guide secured to the base, aguide lug onthe annular member and received by the guide, a second guide carried by the base, and'a-second guide lug upon the sleeve-like member and received by the second-named guide: r

EDWARD LESLIE' GILBERT. 1

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