CN111794856A

CN111794856A - Rotary disk type internal combustion engine

Info

Publication number: CN111794856A
Application number: CN202010254125.2A
Authority: CN
Inventors: 袁新文
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-03
Filing date: 2020-04-01
Publication date: 2020-10-20
Also published as: CN109882287A

Abstract

The invention discloses a conversion device of a rotary disk type internal combustion engine, which is formed by combining parts such as a cylinder, a piston, a rotary disk, a main shaft, a connecting rod, a rocker arm, a sliding frame and the like; the center line of the cylinder is vertical to the center line of the main shaft and keeps a proper distance from the center line of the main shaft, the turntable is eccentrically arranged on the main shaft, a sliding rail concentric with the turntable is arranged on the turntable and is divided into an inner sliding rail and an outer sliding rail, the track line of the inner sliding rail and the track line of the outer sliding rail are specific curves, the turntable is pushed to rotate around the center of the main shaft by a method of applying acting force of linear motion to the sliding rail of the turntable, and two modes are adopted for pushing the turntable to rotate around the center of the main shaft, namely a pulley; the rotating disc type conversion device is composed of an eccentric rotating disc, a connecting rod, a rocker arm type structure for controlling the running of the sliding frame and other machine parts, and converts linear motion into rotary motion. The invention has simple structure, stable operation, high torque and wide application range.

Description

Rotary disk type internal combustion engine

Technical Field

The invention relates to an internal combustion engine, in particular to a rotating disc type internal combustion engine.

Background

In the field of internal combustion engines, reciprocating crank-connecting rod internal combustion engines are generally applied at present, and since the invention of Otto, inventor of Germany in 1876, various technologies of the internal combustion engines become mature day by day through continuous innovation and transformation. The working principle is that the expansion force generated by the combustion of combustible gas in a closed space formed by a cylinder and a piston is utilized to push the piston to do reciprocating linear motion in the cylinder, and the kinetic energy is converted into rotary kinetic energy through a crank connecting rod device for output application. The internal combustion engine has the advantages of good sealing and lubricating performance and reliable operation; the crank connecting rod device has the defects that the efficiency is lower when the linear motion of the piston is converted into the circular motion, the crank connecting rod device is mainly limited by the displacement, the length of the crank is limited, and the efficiency of converting the maximum expansion force of the combustible gas in the initial combustion and explosion stage into the rotary kinetic energy is influenced due to the influence of the rotation angle; the reciprocating motion inertia impact force of the crank and the connecting piece thereof is large, the structure of the crank connecting rod is complex, and the manufacturing cost is high.

Disclosure of Invention

The invention provides a rotary disc type device which is used for replacing a crank connecting rod device and realizing the conversion of the linear motion of a piston and the rotary motion of a main shaft so as to solve the problems.

The rotary table device is formed by combining a cylinder, a piston, a rotary table, a main shaft, a connecting rod, a rocker arm, a sliding frame assembly and the like.

The turntable is a disc-shaped disc, the edge of the turntable is provided with a sliding rail concentric with the disc, the turntable is fixedly arranged on the main shaft in an eccentric state, when the main shaft rotates, the distance between the sliding rail and the center of the main shaft is sometimes close to or sometimes far away, and the difference value is the stroke of the piston; the slide rail is divided into an inner slide rail and an outer slide rail, a slide frame assembly formed by combining an inner pulley (or an inner slide block) and an outer pulley (or an outer slide block) is arranged on the slide rail, the slide frame assembly is connected with one end of a rocker arm and one end of a connecting rod, the other end of the rocker arm is fixed on a turntable box body in a hinge mode, the other end of the connecting rod is connected with a piston, and the connecting rod applies acting force of the piston doing work motion to the outer edge of the turntable through the slide frame assembly connected with the connecting rod to push the turntable to.

For a complete and clear description of the present invention, the following technical solutions are referred to with the following terms and conventions as follows:

< appropriate distance >

The proper distance is the closest distance between the cylinder center line and the spindle center line when the cylinder center line and the spindle center line are perpendicular to each other. As shown in fig. 1-C, < appropriate distance > is the distance between points a and b.

2. Forward and backward thrusts

For distinguishing the direction of rotation in which the piston drives the turntable through the connected machine member. When the center line of the cylinder is deviated and positioned at the left side of the center line of the main shaft when viewed from the direction of the center line of the end surface of the main shaft, and the piston moves downwards, the main shaft is pushed to rotate clockwise so as to be called forward pushing, for example, forward pushing is shown in fig. 2-a and fig. 2-B, point K in the drawing is the longest end of the eccentric turntable, and when the longest end of the eccentric turntable is intersected with the center line of the cylinder, the piston is; when the piston moves downwards, the main shaft is pushed to rotate anticlockwise, which is called as backstepping.

3. Extrapolation and extrapolation in

For distinguishing the way in which the piston drives the turntable in rotation through the connected machine member. The piston pushes the outer slide rail of the turntable to rotate to be pushed outwards through the connected machine parts, and the pushing is outwards shown in the figures 1-C and 1-D; the piston pushes the inner slide rail of the turntable to rotate through the connected machine element and push inwards as shown in figure 1-A and figure 1-B.

The specific technical scheme is as follows:

as shown in fig. 4, 5, 9, and 12: the turntable arranged on the main shaft is a disc-shaped disc, the edge of the turntable is provided with an inner slide rail and an outer slide rail which surround the disc and are concentric with the disc, the center of the turntable and the center of the main shaft are in an eccentric state and are fixed in a flat key connection mode, and the eccentric distance is one half of the stroke of a piston; according to the requirement of output power, the diameter of the rotary table can be selected within the range of 100-8000 mm, the eccentricity can be selected within the range of 10-2000 mm, and the number of the rotary tables arranged on a single main shaft can be set within 1-50; when the turntable rotates, the distance between the slide rail and the center of the main shaft is close to or far away from, and the difference between the farthest distance and the nearest distance is equal to the stroke of the piston.

The sliding rails arranged at the edge of the turntable are divided into an inner sliding rail and an outer sliding rail, the trajectory lines of the inner sliding rail and the outer sliding rail are specific curves, and the specific curves comprise circumferential lines, elliptical lines or other curves which are sometimes close to each other and sometimes far away from the center of the main shaft; the sliding frame assembly formed by combining an inner pulley (or an inner sliding block), an outer pulley (or an outer sliding block) and a sliding frame is arranged on the sliding frame assembly.

As shown in fig. 6, 10, and 12: the sliding frame is divided into an integrated sliding frame and an assembled sliding frame, sliding frame connecting rod rocker arm connecting shafts are arranged on the two sliding frames, the integrated sliding frame is provided with two inner sliding wheel shafts and two outer sliding wheel shafts, an inner pulley and an outer pulley are respectively arranged on the integrated sliding frame, and an inner sliding block and an outer sliding block are arranged on the assembled sliding frame; the connecting shaft of the rocker arm of the sliding frame connecting rod is in clearance fit with the connecting rod and the rocker arm, and when the piston drives the connecting rod to move up and down, the sliding frame assembly swings along the track lines of the inner sliding rail and the outer sliding rail by taking the connecting shaft of the rocker arm of the sliding frame connecting rod as the center to push the eccentric turntable to rotate along the center of the main shaft.

In fig. 12, L is the distance between the center line of the turntable and the center line of the inner pulley shaft, L + L1 is the distance between the center line of the turntable and the center line of the connecting shaft of the rocker arm of the connecting rod of the sliding frame, L + L1+ L2 is the distance between the center line of the turntable and the center line of the outer pulley shaft, and H1 is the distance between the two inner pulley shafts.

As shown in fig. 4 and 11: one end of the connecting rod is connected with the piston, the other end of the connecting rod is connected with the sliding frame component and the movable end of the rocker arm, and when the piston does work, the connecting rod and the connected sliding frame component push the turntable to rotate around the center of the main shaft.

As shown in fig. 4 and 7: the installation position of the rocker arm is positioned on the right side of the connecting rod, the movable end of the rocker arm is connected with the sliding frame component and the connecting rod, and the other end of the rocker arm is fixed on the box body of the turntable box in a hinge mode; due to the assembly requirement, the rocker arm is manufactured in two parts and is fastened into a whole by bolts during installation.

When the cylinder explodes to do work to push the piston to move downwards, the sliding frame component connected with the connecting rod and the rocker arm moves along the track line of the sliding rail to push the turntable fixed on the main shaft to rotate, as shown in fig. 1 and 2: when the turntable rotates, the distance between the slide rail and the center of the main shaft is close to or far away from the turntable along with the rotation of the turntable.

The way of pushing the turntable is two:

first, push in. As shown in fig. 1-a, 1-B, and 7: when the piston is positioned at the top dead center, the distance between the slide rail and the center of the main shaft is the shortest, the piston moves towards the bottom dead center along with the rotation of the turntable, air is sucked into the air cylinder at the moment, when the piston moves to the bottom dead center, the distance between the slide rail and the center of the main shaft is the longest, the air suction starts to perform a compression stroke, then the turntable continues to rotate, when the piston moves to the top dead center, the compression is completed, an explosive working stroke starts, when the working is completed to the bottom dead center, the turntable continues to rotate and returns to the top dead. Every time the main shaft rotates for two circles, one cylinder completes all strokes of once suction, pressure, explosion and exhaust. In the mode, the air suction stroke is completed by pulling the piston to move downwards through the outer pulley by the connecting rod, the compression and exhaust strokes are completed by pushing the inner pulley and the connecting rod piston to move upwards through the inner sliding rail, and the explosion stroke is completed by pushing the inner sliding rail to move downwards through the connecting rod and the inner pulley on the sliding frame component by the piston. Fig. 1-a is a schematic view of the piston at the top dead center during the inward pushing, and fig. 1-B is a schematic view of the piston at the bottom dead center during the inward pushing.

In the process that the air cylinder finishes suction, pressure, explosion and exhaust, the linear motion of the piston is converted with the rotary motion of the rotary table, the conversion modes are two, namely, the suction stroke is that the piston is pulled by the outer pulley through the connecting rod to move downwards, and the compression and exhaust strokes push the inner pulley and the connecting rod piston to move upwards by the inner sliding rail, so that the rotary motion of the rotary table is converted into the linear motion of the piston; secondly, the piston moves downwards through the connecting rod and the inner pulley on the sliding frame component in an explosion stroke, and the linear motion of the piston is converted into the rotary motion of the turntable; the two conversion modes are essentially the interconversion of mechanical linear motion and mechanical rotary motion, and the main shaft repeatedly completes the conversion of linear motion into rotary motion or the conversion of rotary motion into linear motion through the eccentric turntable in the continuous rotation process, thereby realizing the completion of all strokes of suction, compression, explosion and exhaust of the cylinder.

And II, extrapolation. As shown in fig. 1-C, 1-D, 4: when the piston is positioned at the top dead center, the distance between the slide rail and the center of the main shaft is the farthest, the piston moves towards the bottom dead center along with the rotation of the rotary table, air is sucked into the air cylinder at the moment, when the piston moves to the bottom dead center, the distance between the slide rail and the center of the main shaft is the closest, the air suction and the compression starting stroke are completed, when the piston moves to the top dead center, the compression starting and the work doing stroke are completed, when the piston rotates to the bottom dead center, the rotary table continues to rotate after the work is completed, the rotary table returns to the top dead center again. Every time the main shaft rotates for two circles, one cylinder completes all strokes of once suction, pressure, explosion and exhaust. In the mode, the air suction stroke is completed by pulling the piston to move downwards through the inner pulley by the connecting rod, the compression and exhaust strokes are completed by pushing the outer pulley and the connecting rod piston to move upwards through the outer slide rail, and the explosion stroke is completed by pushing the outer slide rail to move downwards through the connecting rod and the outer pulley on the slide frame component by the piston. Fig. 1-C is a schematic view of the piston at top dead center when extrapolated, and fig. 1-D is a schematic view of the piston at bottom dead center when extrapolated.

By extrapolation, also essentially interconversion of mechanical linear motion to mechanical rotary motion

When the cylinder applies work to push the piston to move downwards, the connecting rod connected with the piston can swing along the radial direction of the main shaft along with the rotation of the turntable, and a rocker arm type structure is adopted to solve the problem of ensuring that the connecting rod moves along a set track. As shown in fig. 4, the movable end of the rocker arm is connected with the carriage assembly and the connecting rod, and the other end of the rocker arm is fixed on the box body of the turntable box in a hinge mode. When the connecting rod connected with the movable end of the rocker arm and the sliding frame component move along the track line of the sliding rail, the connecting rod and the sliding frame component can only move in a controlled range under the limitation of the rocker arm, and stable and reliable operation is realized.

For a traditional crank connecting rod type internal combustion engine, the center line of a cylinder and the center line of a main shaft are perpendicular to each other, the two center lines are in the same plane, the center lines of the cylinder and the main shaft are also perpendicular to each other, but the center line of the cylinder and the center line of the main shaft deviate from each other by a certain distance, the distance is called as an appropriate distance, and the appropriate distance can be selected within the range of 5-500 mm according to the power of the internal combustion engine and the diameter of a turntable.

The simulation test data actually made of machine parts according to the above principle shows that under the condition that the applied acting force is completely the same, the rotating disc type device obtains 15.48kg of torque, and the crank connecting rod type device obtains 12.54kg of torque; the carousel arrangement is compared to the crank link arrangement, 15.48 ÷ 12.54 ≈ 1.23. The torque obtained by the turntable type device is greatly improved compared with the torque obtained by a crank connecting rod type device.

In the test, the same piston, the same cylinder, the same spring and the same torque measuring rod are adopted to respectively test the rotary disc type device and the crank connecting rod type device, the eccentricity of the two devices is equal to 30 mm, the rotary disc type device adopts an extrapolation and forward pushing mode, only schematic diagrams when the rotation angle is 20 degrees and 100 degrees are drawn in the figures 2 and 3, and the test of 8 angles is actually carried out; the < dead weight measured torque > in fig. 13 means a torque measured when the unsprung member is naturally suspended by the weight of the piston, the connecting rod, or the like, and the torque actually obtained after the spring is applied should be: < measured torque after spring addition > minus < dead weight measured torque >. The other main data are: 1. the length of the moment measuring rod is 100 mm, 2, the diameter of the outer sliding rail of the rotary disc is 240 mm, the diameter of the inner sliding rail of the rotary disc is 227 mm, 3, the length of the connecting rod of the rotary disc type device is 108 mm, 4, the length of the connecting rod of the crank connecting rod type device is 110 mm, 5, the length of the rocker arm arranged on the right side of the rotary disc type device is 130 mm, 6, the proper distance of the rotary disc type device is 17 mm, a plurality of different proper distances are selected for carrying out moment test data display, the obtained torque is smaller than the crank connecting rod when the proper distance is larger than the eccentric distance, and the obtained torque is maximum when the proper distance is 17 mm.

Compared with the reciprocating crank connecting rod internal combustion engine which is commonly used at present, the invention has the following distinct characteristics:

1. the operation is stable and the vibration is small. Because the linear motion of the piston is converted into the rotary circular motion in the rotary mode of the turntable, the operation is stable, the vibration is small, the idle speed revolution of the internal combustion engine can be greatly reduced, and the energy conservation and emission reduction are realized.

2. The torque boosting power is increased. Compared with a reciprocating crank connecting rod internal combustion engine, the rotary disc type internal combustion engine has the advantages that pistons with the same diameter are used, under the condition that the stroke of the pistons is not increased (namely the exhaust amount is not changed), the torque can be improved by changing the diameter of a rotary disc of the rotary disc type internal combustion engine, and accordingly the single-machine power is greatly improved.

3. The rotating disc type conversion device is formed by combining the main shaft and the rotating disc, is easier to process and manufacture compared with a crank connecting rod device, and can effectively reduce the manufacturing cost.

The turntable type internal combustion engine manufactured by the invention can be applied to road, railway or waterway transportation as a power source, can be widely applied to other fields, and has great economic benefit.

Drawings

FIG. 1 is a schematic view of the working principle of a turntable type switching device;

FIG. 2 is a schematic diagram of a turntable changing apparatus;

FIG. 3 is a schematic view of a crank link assembly test;

FIG. 4 is a front view of the push-out turntable device;

FIG. 5 is a side view of the push-out turntable device;

FIG. 6 is a partial cross-sectional view of the carriage assembly;

FIG. 7 is a front view of the push-in turntable device;

FIG. 8 is a side view of the push-in turntable device;

FIG. 9 is a view showing the fitting position of the turntable and the spindle;

FIG. 10 is a partial cross-sectional view of the fabricated carriage;

FIG. 11 is a diagram of piston and connecting rod positions;

FIG. 12 is an end view of the one-piece carriage assembly;

FIG. 13 is a table comparing torque test data.

The labels in the figure are: 1. schematic spring, 2 schematic cylinder, 3 schematic piston, 4 schematic connecting rod, 5 schematic crank, 6 schematic torque measuring rod, 7 schematic tension meter, 8 schematic rocker arm, 9 schematic main shaft, 10 schematic outer slide rail, 11 schematic pulley, 12 schematic inner slide rail, 13 schematic slide frame assembly, 14 external push connecting rod left side, 15 integral slide frame, 16 external pulley, 17 external pulley shaft, 18 internal pulley, 19 internal pulley shaft, 20 rotary table, 21 left rotary table box, 22 left rocker arm, 23 rocker arm shaft, 24 main shaft, 25 rotary table box fixing screw hole, 26 lubricating oil pool, 27 right rotary table box, 28 external push connecting rod right side, 29 snap spring, 30 internal slide rail, 31 external slide rail, 32 internal push connecting rod left side, 33 internal push connecting rod right side, 34. the center line of a cylinder, 35 horizontal keys, 36, the left outer sliding block, 37, the right outer sliding block, 38, the left inner sliding block, 39, the right inner sliding block, 40, an assembled left sliding frame, 41, an assembled right sliding frame, 42, the center line of a spindle, 43, the center line of a turntable, 44, the cylinder, 45, a piston, 46, a connecting rod pin, 47, a sliding frame fastening bolt, 48, a connecting hole with a sliding frame rocker arm, 49, the center line of a connecting shaft of a sliding frame connecting rod rocker arm, 50, a rocker arm fastening bolt, 51, a connecting rod fastening bolt and 52, a right rocker arm.

Detailed Description

[ example 1 ]

As shown in fig. 4 and 5: the rotating disc type device is manufactured in a mode of adding an external push and a positive push, and the main data are as follows: the eccentricity is 30 mm, the suitable distance is 17 mm, the diameter of the outer slide rail 31 is 240 mm, the diameter of the inner slide rail 30 is 227 mm, the length of the connecting

rods

14 and 28 is 110 mm, and the length of the rocker arm 22 is 130 mm.

As shown in fig. 4, 5, 10, and 11: the main components are composed of cylinder 44, piston 45,

rotary disc boxes

21, 27, connecting

rods

14, 28, rotary disc 20, spindle 24,

rocker arms

22, 52, sliding

frames

15, 40 and 41. The turntable 20 mounted on the main shaft 24 is a disk-shaped disc, and in order to ensure strength and prevent deformation, the main shaft 24 is made of high-quality steel, the turntable 20 is made of cast iron, the outer edge line of the turntable 20 is a circumferential line, and the turntable central line 43 is eccentric to the main shaft central line 42, as shown in fig. 9: the piston is fixed by adopting a flat key 35 connection mode, the inner slide rail 30 and the outer slide rail 31 arranged on the edge are concentric with the rotary table 20, the width of the outer slide rail 31 can be selected within the range of 30-60 mm according to the output power, the eccentricity is calculated according to the range of 30 mm, and the piston stroke is 60 mm in the embodiment.

As shown in fig. 5 and 11: according to the assembly requirement, the

turntable boxes

21 and 27 and the connecting

rods

14 and 28 are manufactured in two parts respectively, the

turntable boxes

21 and 27 are made of aluminum alloy, the connecting

rods

14 and 28 are made of cast steel, the connecting

rods

14 and 28 are fastened into a whole by using high-strength bolts during assembly, the upper parts of the connecting

rods

14 and 28 are connected with the piston 45 by using a connecting rod pin 46 and are fixed by using a clamp spring 29, and the lower parts of the connecting

rods

14 and 28 are connected with the sliding frame assembly.

As shown in fig. 6, 10, and 12: the sliding carriages are divided into an integrated sliding carriage 15 and assembled sliding carriages 40 and 41 which are both made of cast steel, when the load is small, the integrated sliding carriage 15 is selected, the inner pulley 18 and the outer pulley 16 are used for pushing the eccentric turntable 20 to rotate along the center of the main shaft 24, when the integrated sliding carriage is applied, the central line 43 of the turntable, the central line of the inner pulley shaft 19 and the central line of the outer pulley shaft 17 are kept on the same straight line, and the rotary radiuses of the central lines of the two inner pulley shafts 19 and the central lines of the two outer pulley shafts 17 are ensured to be consistent; each pulley shaft is in interference fit with the sliding frame and is fixed by a clamp spring, and the pulley shafts are in clearance fit with the pulleys; firstly, the outer pulley 16 is installed on the integrated sliding frame 15, and the inner pulley 18 is installed after the outer pulley 16 is matched with the outer sliding rail 31; when the load is larger, the eccentric turntable 20 can be pushed to rotate along the center of the main shaft 24 by selectively increasing the number of the pulley shafts or using the assembled sliding frames 40 and 41 and increasing the number of the pulleys or using the inner sliding blocks 38 and 39 and the outer sliding blocks 36 and 37; the distance H1 between two inner slide wheel shafts 19 of the integrated slide frame 15 is not too small, self-locking is prevented, and the length of H1 is selected within the range of 4-5 times of the proper distance.

The rocker arm can be made of high-quality cast iron, when the fixed end of the rocker arm is determined, the center line 34 of the cylinder and the center lines of the

rocker arms

22 and 52 are kept at 90 degrees after the piston 45 is determined to be positioned at the top dead center, then the fixed ends of the left rocker arm 22 and the right rocker arm 52 are determined, and the right rocker arm 52 and the left rocker arm 22 are fastened into a whole by using the rocker arm fastening bolt 50.

As shown in fig. 4 and 5, a lubricating oil pool 26 is arranged at the bottom of the

rotary table boxes

21 and 27, and the height of the oil surface is lower than the short radius of the rotary table 20 and higher than the long radius of the rotary table 20; when the long radius of the turntable 20 rotates to the bottom, the long radius of the turntable 20 can sink into the oil pool, and the lubricating oil is splashed and carried into the carriage 15 during the rotation process, so that the whole device is lubricated due to the splashing effect of the turntable 20.

Claims

1. A rotary disk internal combustion engine comprising a cylinder (44), a piston (45), a rotary disk (20), a main shaft (24), connecting rods (14, 28, 32, 33), rocker arms (22, 52) and a carriage (15, 40, 41), characterized in that: the cylinder center line (34) is perpendicular to the main shaft center line (42) and keeps a proper distance with the main shaft center line (42); the turntable (20) is arranged on the main shaft (24), and the center of the turntable (20) and the center of the main shaft (24) are in an eccentric state; the turntable (20) is provided with a slide rail concentric with the turntable (20), the slide rail is divided into an inner slide rail (30) and an outer slide rail (31), and the track line of the inner slide rail is a specific curve; the conversion of linear motion and rotary motion is realized by applying a mechanical linear motion acting force on the eccentric turntable (20), the conversion of rotary motion and linear motion is realized by applying a rotary acting force on a linear motion machine through the eccentric turntable (20), and the mutual conversion of linear motion and rotary motion is realized through the eccentric turntable (20) and the linear motion machine.

2. The rotary internal combustion engine of claim 1, wherein: a turntable type conversion device is composed of a turntable (20), connecting rods (14, 28, 32, 33), a rocker arm type structure and other parts for controlling the running of the sliding frames (15, 40, 41), and the linear motion of a piston (45) is converted into the rotary motion of a main shaft (24).

3. The rotary internal combustion engine of claim 1, wherein: the central line (34) of the air cylinder is perpendicular to the central line (42) of the main shaft and keeps an appropriate distance with the central line (42) of the main shaft, and the appropriate distance ranges from 5 mm to 500 mm.

4. The rotary internal combustion engine of claim 1, wherein: the center of the turntable (20) and the center of the main shaft (24) are in an eccentric state, the range of the eccentric distance is 10-2000 mm, the diameter range of the turntable (20) is 100-8000 mm, and the number of the turntables (20) is 1-50.

5. The rotary internal combustion engine of claim 1, wherein: the inner sliding rail (30) and the outer sliding rail (31) are arranged concentrically with the turntable (20), the track lines of the inner sliding rail (30) and the outer sliding rail (31) are specific curves which are sometimes close to and sometimes far away from the center of the main shaft (24), and the specific curves comprise circumferential lines, elliptic lines or other curves.

6. The rotary internal combustion engine of claim 1, wherein: the connecting rod (14, 28 or 32, 33) applies the force of the linear motion of the piston to the sliding rail of the turntable (20) through an outer pulley (16) and an inner pulley (18) which are arranged on a sliding frame (15) connected with the connecting rod, and pushes the turntable (20) to rotate around the center of the main shaft (24).

7. The rotary internal combustion engine of claim 1, wherein: the connecting rods (14, 28 or 32, 33) apply the force of the linear motion of the piston to the sliding rails of the turntable (20) through outer sliding blocks (36, 37) and inner sliding blocks (38, 39) arranged on sliding frames (40, 41) connected with the connecting rods, and push the turntable (20) to rotate around the center of the main shaft (24).

8. The rotary internal combustion engine of claim 1, wherein: the connecting rods (14, 28) are connected with the sliding frames (15 or 40, 41) and the components thereof, and the rotating disc (20) is pushed to rotate around the center of the main shaft (24) in an outward and forward pushing mode.

9. The rotary internal combustion engine of claim 1, wherein: the connecting rods (32, 33) and the connected sliding frames (15 or 40, 41) and the components thereof push the turntable (20) to rotate around the center of the main shaft (24) in an inward pushing and forward pushing mode.

10. The rotary internal combustion engine of claim 1, wherein: a rocker arm type structure is adopted for supporting the connecting rod (14, 28 or 32, 33), and the control sliding frame (15 or 40, 41) and components thereof realize stable and reliable running along the sliding rail.