SU23694A1 - Internal combustion engine - Google Patents

Description

The invention relates to a rotary internal combustion engine with a casing of annular cross-section, within which an arcuate cylinder that includes a corresponding piston moves.

In the proposed engine for transmitting rotation to the main shaft, which is located eccentrically relative to the casing axis, the cylinder and the piston are pivotally connected to the rods, directed parallel to each other in a washer fixed to the shaft.

In the attached drawing of FIG. 1 shows a cross section of an engine; FIG. 2- vertical axial section of it; FIG. 3 (1.11, HI, IV) - diagram of the four positions of the cylinder and piston; FIG. 4 and 5 - transverse and vertical axial sections of a modified two-cylinder engine; FIG. 6 (/, //, ///, IV) - scheme of the four positions of the cylinders and pistons of the modified engine.

The bed-case / engine (Figs. 1 and 2) is a casting that serves as both a crankcase and a guide cylinder, and consists of two parts, connected by bolts into one unit. Outside, there are a number of cooling fins parallel to the horizontal axis of the engine, and two tides for screwing the engine to the frame of the motorcycle. The inner cavity of the housing is an annular circular chamber, into which a thin-walled arcuate cylinder 2 having two windows is inserted such a mold:

B is for suction of the mixture and c is for the exit of exhaust gases. At the bottom there are tides for the spark plug 3 and for the finger of the stem 4, Cylinder 2 includes a piston 5, equipped with sealing rings 6 and at the open end with a flush with / for the finger. The rods 7, 7 of rectangular section are provided at the ends with pins for fingers 26 and 4. The free ends of the rods 7 enter the grooves of the washer 5 of the main shaft 25, and to reduce friction when moving between the rods 7 and the walls of the washer 5, ball collars are mounted 9. The washer 8 consists of two parts, right and left, connected into one with the help of countersunk bolts 10. The plane of the connector passes through the grooves passing the rods 7, 7. The shaft 25 is resting in two ball bearings // pressed into the casing / engine . The axis of the shaft 25 is eccentric with the axis of the casing / and is shifted to its lower part. A gear wheel 12 for a chain transmission is mounted on the left end of the shaft 25 on the gearbox and on the magneto / 5 located behind the engine in a special casing. A flywheel (-) # and a cam (5) are fitted on the right end of the shaft 25 for mechanically opening the valve 16 of the discharge opening in the housing /. At the moment of compression of the fresh mixture in the Sarter (internal cavity) of the engine, valve 16 closes the exhaust port in the housing /, at the moment gas release from cylinder 2 through window C coincides with the exhaust housing QKHOM / valve 16 opens cam 15, through t g 17 and rocker arms 18. The fuel mixture is prepared by a carburetor 19, bolted on the left side to the casing / engine; passage through valve 20, the mixture fills the inner part of the housing / and further through the slot for the rods 7 approaches the suction window b cylinder 2, and fills the latter when the window is opened with a piston 5, to better fill the cylinder with the mixture from the inner side of the housing / circumferentially there are a number of cuts equal to the length of the suction window b cylinder 2. To ignite the current from the magneto 13 on the insulated wire comes to the contact e of the cover 21 and from it to the isolated plate 22; from here, through the roller 23, the current isolated from the mass goes to the candle 3. There is a plug 24 on the casing for turning out the candle 5.

The action of the engine is based on the following. A piston B is inserted into the annular vessel A; two mutually unrelated rods pass through the center O (Fig. 3) eccentrically located with respect to the center OO of the circle formed by the axis of the cylinder A; each rod is connected at its one end by a hinge, respectively, with cylinder A and piston B. In the place where the free ends of the rods pass, a solid direction is created which prevents them from breaking and being at one or another angle relative to each other . At the same time, the rods can freely make straight movements, moving one relative to the other, i.e. represent the beam MN, composed of two rods and resting on a support O which does not change its position, while the arms MO and ON the beams can change their length. When gas pressure in cylinder A is more than atmospheric, piston B will tend to withdraw from cylinder A, and the gas pressure on the piston and on the bottom of the cylinder will be the same. These forces, both on the piston and on the cylinder, will be transmitted to the shoulders and MO of the beam, creating each of its torque around point O. But since the shoulder of the OL is larger than the shoulder of MO (Fig. 3 I), the piston will rotate more cylinder torque, i.e. there is a difference in moment values that causes piston B and cylinder A to move in the annular direction in the same direction as

and piston B. This movement is transmitted to a shaft whose axis corresponds to point O. At that moment when the rods are perpendicular to the axis passing through the centers O and Od (Fig. 3 /), the torques of the piston and cylinder are equal; this moment corresponds to the dead center of the engine, from which it is derived from the flywheel.

Sequential processes occurring in the cylinder 2 when turning the main shaft 25, will be the following: at the first moment (Fig. 3, /) the piston B will be pushed into the cylinder A, full compression, the beginning of the working process; the rods are at an angle of 9 ° to the axis of OOD, the moment of the dead point; the flywheel 14 (Fig. 2) brings the engine out of this position, a difference is obtained in the lengths of the arms of the rods 7, which creates a torque that causes the shaft 25 to turn, and with the rotation of the shaft to 90 it will increase all the time. The second moment: (fig. 3, //), shaft 25 turned on 9CG, gas expands in cylinder 2 and the mixture is compressed in the crankcase. The third point (Fig. 3, W): the shaft 25 turned 180, a full expansion of the gases in the cylinder 2 and a full compression of the fresh mixture in the crankcase occurred; exhaust gas was released from the cylinder and the fresh mixture began to fill it. The fourth moment: (Fig. 3, IV), the shaft 25 turned another 18CP, which in general is 360P with the initial position — a full rotation of the shaft. During this period there is a complete compression of the mixture in the cylinder and a complete depression in the crankcase. Thus, in one revolution of the shaft, one working process takes place, i.e. the engine runs in a push-pull cycle.

In the modified engine (Figs. 4-6), in order to achieve a smoother stroke inside the casing, two cylinders 2 and 2 with pistons 5 and 5 inserted into them with sealing rings o are inserted. Each of the pistons 5 by means of the rod 4 is firmly connected to another cylinder 2. The other parts of the engine and its actions are similar to the above described engine with one cylinder.

The subject matter of the invention.

1. A rotary internal combustion engine with an annular casing inside which the arcuate cylinder moves, including a piston of the appropriate shape, characterized in that for transmitting the rotation to the main shaft 25 located eccentrically relative to the casing axis (Fig. 1-2), the cylinder 2 and the piston 5 hinges are each connected to one of the rods 7, parallel to each other, directed by a washer 8 fixed on the shaft 25. -2. A modification of the engine described in claim 1, characterized in that, in order to achieve a smoother stroke, two cylinders 2 are placed inside the casing (Figs. 4, 5), each of which is rigidly connected to the bent rod 4 of the pistons 5 of the other cylinder and is articulated with one of the rods 7 sliding in parallel cuts of the main shaft washer 5.

FIG E