Straight-shaft, piston-driven internal combustion engine

The direct-axis piston rotary internal combustion engine addresses energy waste and structural complexity by using a straight shaft and linked pistons to enhance fuel combustion efficiency and reduce emissions, offering a simpler and more efficient engine design.

JP3255581UActive Publication Date: 2026-04-20尤文峰
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
尤文峰
Filing Date
2026-01-20
Publication Date
2026-04-20

AI Technical Summary

Technical Problem

Conventional internal combustion engines suffer from energy waste due to short piston strokes, excessive wear on bearings, complex structures leading to high manufacturing costs and maintenance difficulties, and environmental pollution from exhaust gases.

Method used

A direct-axis piston rotary internal combustion engine design utilizing a straight shaft, suction and operating exhaust cylinders with shut-off valves, and linked pistons to eliminate the need for a crankshaft and valve train, enabling efficient gas intake and combustion.

Benefits of technology

The design reduces energy consumption, increases fuel combustion efficiency, minimizes harmful emissions, and simplifies the structure for lower manufacturing and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

We provide a straight-shaft, piston-type internal combustion engine with a simple structure and high energy conversion efficiency. [Solution] The system includes a straight shaft 1, a suction cylinder 2, and an operating exhaust cylinder 3. The suction cylinder is ring-shaped and has a hollow bore. A suction cylinder shut-off valve is provided inside the bore of the suction cylinder. A suction cylinder piston is provided inside the operating chamber of the suction cylinder. A suction cylinder link 24 is connected between the suction cylinder pistons inside the operating chambers of the two suction cylinders. A suction cylinder intake port and a suction cylinder exhaust port are provided on both sides of the suction cylinder shut-off valve inside the operating chamber of the suction cylinder. The suction cylinder and the operating exhaust cylinder are arranged in parallel along the axial direction of the straight shaft. The dynamic exhaust cylinder is ring-shaped and has a hollow bore. An operating exhaust cylinder shut-off valve is provided inside the bore of the operating exhaust cylinder, and an operating exhaust cylinder piston is provided inside the operating chamber of the operating exhaust cylinder. An operating exhaust cylinder link is connected between the operating exhaust cylinder pistons of the two operating chambers of the operating exhaust cylinder, and an operating exhaust cylinder intake port and an operating exhaust cylinder exhaust port are provided inside the operating chamber of the operating exhaust cylinder. The operating exhaust cylinder intake port is close to the operating exhaust cylinder shut-off valve, and an ignition device is provided in the operating chamber of the operating exhaust cylinder at a position close to the operating exhaust cylinder intake port.
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Description

Technical Field

[0001] The present invention relates to the technical field of internal combustion engines, and more specifically, to a direct-axis piston rotary internal combustion engine.

Background Art

[0002] Conventional internal combustion engines are composed of a crankshaft link mechanism. Its operating principle is to convert the reciprocating linear motion of the piston in the cylinder into the rotational motion of the crankshaft, and then output power through the clamp. Conventional internal combustion engines have the following drawbacks during use. First, due to the constraints of the clamp, the operating stroke of the piston is short. The clamp rotates twice for the piston to perform one operation. After the operation, the combustion gas in the cylinder is still discharged while retaining high energy, resulting in energy waste and a decrease in the energy conversion rate. Second, the piston and the link have a certain weight. When the piston and the link reciprocate, most of the force transmitted to the hinge connection point along the link is a radial force, which cannot drive the main shaft to operate. Instead, it causes excessive wear on the bearings of the crankshaft and the cylinder wall. In addition, the complex exhaust mechanism consumes energy during operation, resulting in a low thermal efficiency of the internal combustion engine. Furthermore, due to the complex structure of the entire internal combustion engine, the manufacturing cost is high, maintenance is difficult, the combustion of the internal combustion engine is insufficient, and the exhaust gas causes environmental pollution.

[0003] Therefore, researching a direct-axis piston rotary internal combustion engine with a simple structure and high energy conversion efficiency has become an urgent problem to be solved by those skilled in the art. [[ID=?]]

Summary of the Invention

Problems to be Solved by the Invention

[0004] In view of this, the present invention provides a direct-axis piston rotary internal combustion engine with a simple structure and high energy conversion efficiency.

Means for Solving the Problems

[0005] It should be noted that there seems to be an error in the original text where there is an undefined tag [[ID=?]] which should be corrected to a proper ID. Also, the tags to and to

[0005] are not translated as they are likely specific identifiers within the patent context that are not meant to be translated. If there are any specific instructions regarding these tags, the translation may need to be adjusted accordingly. To achieve the above objective, this invention employs the following technical approach.

[0006] A straight-shaft, piston-type internal combustion engine comprising a straight shaft used in place of a crankshaft, an suction cylinder, and an operating exhaust cylinder, wherein the suction cylinder is ring-shaped and has a hollow bore, and an suction cylinder shut-off valve is provided in the bore of the suction cylinder, two of the suction cylinder shut-off valves divide the bore of the suction cylinder into two suction cylinder operating chambers, an suction cylinder piston is provided in the operating chamber of the suction cylinder, and a suction cylinder link is provided between the suction cylinder pistons in the operating chambers of the two suction cylinders. The suction cylinder link is connected, the middle portion of which is fitted onto the outside of the straight shaft, and as the suction cylinder link rotates, the suction cylinder piston rotates in the operating chamber of the suction cylinder, and an suction cylinder intake port and an suction cylinder exhaust port are provided on both sides of the suction cylinder shut-off valve in the operating chamber of the suction cylinder, and as the output of the internal combustion engine increases, the suction cylinder, suction cylinder shut-off valve, suction cylinder operating chamber, suction cylinder piston and suction cylinder link are increased or enlarged accordingly. The suction cylinder and the operating exhaust cylinder are arranged in parallel along the axial direction of the straight shaft, the operating exhaust cylinder is ring-shaped and has a hollow bore, an operating exhaust cylinder shut-off valve is provided in the bore of the operating exhaust cylinder, the two operating exhaust cylinder shut-off valves divide the bore of the operating exhaust cylinder into two operating exhaust cylinder operating chambers, an operating exhaust cylinder piston is provided in the operating chamber of the operating exhaust cylinder, an operating exhaust cylinder link is connected between the operating exhaust cylinder pistons of the two operating chambers, the middle part of the operating exhaust cylinder link is fitted to the outside of the straight shaft, and as the operating exhaust cylinder link rotates, the operating exhaust cylinder piston rotates in the operating chamber of the operating exhaust cylinder and operates inside the operating chamber of the operating exhaust cylinder An exhaust cylinder intake port and an operating exhaust cylinder exhaust port are provided, the operating exhaust cylinder intake port is close to the operating exhaust cylinder shut-off valve, an ignition device is provided in the operating chamber of the operating exhaust cylinder at a position close to the operating exhaust cylinder intake port, the suction pressure cylinder exhaust port and the operating exhaust cylinder intake port are in communication, and a pressure gas valve is provided in the communication passage, the pressure gas valve is closed before the operating exhaust cylinder piston passes the operating exhaust cylinder shut-off valve, and opens after the operating exhaust cylinder piston passes the operating exhaust cylinder shut-off valve to draw in air, and as the output of the internal combustion engine increases, the number or size of the operating exhaust cylinder, operating exhaust cylinder shut-off valve, operating chamber of the operating exhaust cylinder, operating exhaust cylinder piston and operating exhaust cylinder link increase accordingly.

[0007] The beneficial effects of adopting the above technical proposal are as follows: In this invention, a straight shaft is used instead of a crankshaft, and the intake pressure cylinder can realize the intake process without the need for a valve train by driving the straight shaft. The intake pressure cylinder draws in gas and compresses the gas inside the cylinder, then sends the gas into the operating exhaust cylinder, supplies fuel and ignites it, and the high-temperature gas generated by combustion drives the operating exhaust cylinder piston and link to rotate, and at the same time rotates the straight shaft and outputs power to the outside.

[0008] Preferably, the suction cylinder piston divides the operating chamber of the suction cylinder into a front chamber and a rear chamber, the suction cylinder intake port is provided in the rear chamber, and the suction cylinder exhaust port is provided in the front chamber. When the linear shaft rotates clockwise, the suction cylinder link rotates, and at the same time the suction cylinder piston rotates within the operating chamber of the suction cylinder. During the rotation process, the gas in the front chamber is gradually compressed, and the rear chamber is gradually drawn in through the suction cylinder intake port.

[0009] Preferably, the operating exhaust cylinder piston divides the operating exhaust cylinder operating chamber into an operating exhaust cylinder front chamber and an operating exhaust cylinder rear chamber, the operating exhaust cylinder intake port and ignition device are provided in the operating exhaust cylinder rear chamber, and the operating exhaust cylinder exhaust port is provided in the operating exhaust cylinder front chamber. When the linear shaft rotates clockwise, the operating exhaust cylinder link rotates, and at the same time the operating exhaust cylinder piston rotates within the operating chamber of the operating exhaust cylinder, the compressed air in the suction cylinder front chamber flows into the operating exhaust cylinder rear chamber and is ignited by the ignition device, the high-temperature gas also drives the operating exhaust cylinder piston to rotate, and the gas in the operating exhaust cylinder front chamber is discharged through the exhaust port of the operating exhaust cylinder.

[0010] Preferably, the surface of the straight shaft is provided with keyways or ring gears for connecting to the suction cylinder link and the operating exhaust cylinder link, the ends of the suction cylinder link and the operating exhaust cylinder link are provided with connecting keys or tooth holders that cooperate with the straight shaft, and the end of the straight shaft is provided with a flywheel connection plate for power output, and as the output of the internal combustion engine increases, the number of keyways or ring gears on the surface of the straight shaft that connect to the suction cylinder link and the operating exhaust cylinder link increases accordingly.

[0011] Preferably, a suction cylinder slide groove is provided on the side wall of the suction cylinder at a position corresponding to the suction cylinder link, the suction cylinder slide groove is arranged in an annular shape along the inner ring of the suction cylinder, and the suction cylinder link passes through the suction cylinder slide groove. By providing the suction cylinder slide groove, the suction cylinder link is made more easily driven to rotate the suction cylinder piston in a circulating motion within the suction cylinder.

[0012] Preferably, a suction cylinder seal is provided at a position in the lumen of the suction cylinder corresponding to the suction cylinder slide groove, the suction cylinder seal is sealed and connected to the suction cylinder slide groove, and the suction cylinder link passes through the suction cylinder slide groove and the suction cylinder seal and is connected to the suction cylinder link. The suction cylinder seal can ensure the sealing of the lumen of the suction cylinder during the rotation of the suction cylinder link.

[0013] Preferably, the suction cylinder piston has an arc shape that fits into the lumen of the suction cylinder, both ends of the suction cylinder piston are operating surfaces, and a suction cylinder gas ring and a suction cylinder oil ring are provided on either side wall of the operating surface. The suction cylinder gas ring can seal the suction cylinder piston and the inner wall of the suction cylinder, and the suction cylinder oil ring can remove any lubricating oil remaining on the inner wall of the suction cylinder.

[0014] Preferably, an operating exhaust cylinder slide groove is provided on the side wall of the operating exhaust cylinder at a position corresponding to the operating exhaust cylinder link, the operating exhaust cylinder slide groove is arranged in an annular shape along the inner ring of the operating exhaust cylinder, and the operating exhaust cylinder link passes through the operating exhaust cylinder slide groove. By providing the operating exhaust cylinder slide groove, the operating exhaust cylinder link is made more responsive in driving the operating exhaust cylinder piston to circulate and rotate within the operating exhaust cylinder.

[0015] Preferably, an operating exhaust cylinder seal portion is provided in the lumen of the operating exhaust cylinder at a position corresponding to the operating exhaust cylinder slide groove, the operating exhaust cylinder seal portion is sealed and connected to the operating exhaust cylinder slide groove, and the operating exhaust cylinder link passes through the operating exhaust cylinder slide groove and the operating exhaust cylinder seal portion and is connected to the operating exhaust cylinder link. The operating exhaust cylinder seal portion can ensure the sealing of the lumen of the operating exhaust cylinder during the rotation process of the operating exhaust cylinder link.

[0016] Preferably, the operating exhaust cylinder piston has an arc shape that fits the lumen of the operating exhaust cylinder, both ends of the operating exhaust cylinder piston are operating surfaces, and an operating exhaust cylinder gas ring and an operating exhaust cylinder oil ring are provided on either side wall of the operating surface. The operating exhaust cylinder gas ring can seal the operating exhaust cylinder piston and the inner wall of the operating exhaust cylinder, and the operating exhaust cylinder oil ring can remove lubricating oil remaining on the inner wall of the operating exhaust cylinder. [Effects of the Invention]

[0017] As can be seen from the above technical proposal, compared to the prior art, this invention discloses and provides a straight-shaft, piston-rotating internal combustion engine, and its beneficial effects are as follows.

[0018] (1) In this invention, by employing a straight shaft instead of a crankshaft, the power consumption when a piston link of a predetermined weight performs a reciprocating motion is reduced. The internal combustion engine in this invention has a simple and lightweight structure, and by eliminating the valve train, energy consumption by the valve train is reduced, resulting in energy savings. The rotational force of the piston and link is effectively utilized to improve the power output of the internal combustion engine.

[0019] (2) Because the volume of the operating chambers of the suction cylinder and the operating exhaust cylinder is large and the piston travels a long distance, the fuel can be completely burned in the operating exhaust cylinder, reducing the emission of harmful gases and improving energy conversion efficiency.

Brief Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings necessary for use in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely some embodiments of the present invention. For those skilled in the art, based on the provided drawings, other drawings can also be obtained without creative efforts.

[0021] [Figure 1] It is a structural schematic diagram of an internal combustion engine according to the present invention. [Figure 2] It is a cross-sectional view of the interior of an internal combustion engine according to the present invention. [Figure 3] It is a cross-sectional view of the A-A position in FIG. 2 according to the present invention. [Figure 4] It is a cross-sectional view of the B-B position in FIG. 2 according to the present invention. [Figure 5] It is a cross-sectional view of the C-C position in FIG. 2 according to the present invention. [Figure 6] It is a cross-sectional view of the D-D position in FIG. 2 according to the present invention. [Figure 7] It is a structural schematic diagram of a straight shaft according to the present invention.

Modes for Carrying Out the Invention

[0022] Hereinafter, while referring to the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are merely some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] The embodiment of the present invention discloses a straight shaft-piston rotary internal combustion engine, which includes a straight shaft 1, a suction and pressure cylinder 2, and a working and exhaust cylinder 3.

[0024] The suction cylinder 2 is ring-shaped and has a hollow lumen. A suction cylinder shut-off valve 21 is provided inside the lumen of the suction cylinder 2. The two suction cylinder shut-off valves 21 divide the lumen of the suction cylinder 2 into two suction cylinder operating chambers 22. A suction cylinder piston 23 is provided inside the suction cylinder operating chambers 22. A suction cylinder link 24 is connected between the suction cylinder pistons 23 inside the two suction cylinder operating chambers 22. The middle part of the suction cylinder link 24 is fitted onto the outside of the straight shaft 1. As the suction cylinder link 24 rotates, the suction cylinder piston 23 rotates in the suction cylinder's operating chamber 22. Within the suction cylinder's operating chamber 22, an suction cylinder intake port 25 and an suction cylinder exhaust port 26 are provided on both sides of the suction cylinder shut-off valve 21. As the output of the internal combustion engine increases, the suction cylinder 2, suction cylinder shut-off valve 21, suction cylinder's operating chamber 22, suction cylinder piston 23, and suction cylinder link 24 increase in number or size accordingly.

[0025] The suction cylinder 2 and the operating exhaust cylinder 3 are arranged in parallel along the axial direction of the straight shaft 1. The operating exhaust cylinder 3 is ring-shaped and has a hollow bore. An operating exhaust cylinder shut-off valve 31 is provided inside the bore of the operating exhaust cylinder 3. The two operating exhaust cylinder shut-off valves 31 divide the bore of the operating exhaust cylinder 3 into two operating exhaust cylinder operating chambers 32. An operating exhaust cylinder piston 33 is provided inside the operating exhaust cylinder operating chambers 32. An operating exhaust cylinder link 34 is connected between the operating exhaust cylinder pistons 33 in the operating chambers 32 of the two operating exhaust cylinders. The middle part of the operating exhaust cylinder link 34 is fitted onto the outside of the straight shaft 1. As the operating exhaust cylinder link 34 rotates, the operating exhaust cylinder piston 33 rotates in the operating chambers 32, and the operating exhaust cylinder intake enters the operating chambers 32 of the operating exhaust cylinder. An opening 35 and an operating exhaust cylinder exhaust opening 36 are provided, the operating exhaust cylinder intake opening 35 is close to the operating exhaust cylinder shut-off valve 31, and an ignition device 37 is provided in the operating chamber 32 of the operating exhaust cylinder, close to the operating exhaust cylinder intake opening 35, the suction pressure cylinder exhaust opening 26 and the operating exhaust cylinder intake opening 35 are in communication, and a pressure gas valve 4 is provided in the communication passage, the pressure gas valve 4 is in a closed state before the operating exhaust cylinder piston 33 passes the operating exhaust cylinder shut-off valve 31, and opens after the operating exhaust cylinder piston 33 passes the operating exhaust cylinder shut-off valve 31 to take in air, and as the output of the internal combustion engine increases, the operating exhaust cylinder 3, operating exhaust cylinder shut-off valve 31, operating exhaust cylinder operating chamber 32, operating exhaust cylinder piston 33 and operating exhaust cylinder link 34 are increased or increased accordingly.

[0026] To further optimize the above technical proposal, a pressure gas valve switch 41 is provided at one end of the communication passage between the suction cylinder exhaust port 26 and the operating exhaust cylinder intake port 35, near the operating exhaust cylinder intake port 35. The pressure gas valve switch 41 controls the opening of the pressure gas valve 4 when the operating exhaust cylinder piston 33 passes the operating exhaust cylinder shut-off valve 31, and controls the pressure gas valve switch 41 to keep the pressure gas valve 4 closed at all other times.

[0027] To further optimize the above technical proposal, the suction cylinder piston 23 divides the suction cylinder's operating chamber 22 into a front suction cylinder chamber 27 and a rear suction cylinder chamber 28, the suction cylinder intake port 25 is provided in the rear suction cylinder chamber 28, and the suction cylinder exhaust port 26 is provided in the front suction cylinder chamber 27.

[0028] To further optimize the above technical proposal, the operating exhaust cylinder piston 33 divides the operating exhaust cylinder operating chamber 32 into an operating exhaust cylinder front chamber 38 and an operating exhaust cylinder rear chamber 39, the operating exhaust cylinder intake port 35 and ignition device 37 are located in the operating exhaust cylinder rear chamber 39, and the operating exhaust cylinder exhaust port 36 is located in the operating exhaust cylinder front chamber 38.

[0029] To further optimize the above technical proposal, the surface of the straight shaft 1 is provided with keyways 12 or ring gears for connecting to the suction cylinder link 24 and the operating exhaust cylinder link 34, the middle ends of the suction cylinder link 24 and the operating exhaust cylinder link 34 are provided with connecting keys or tooth holders that cooperate with the straight shaft 1, and the end of the straight shaft 1 is provided with a flywheel connection plate 11 for power output, and as the output of the internal combustion engine increases, the number of keyways or ring gears on the surface of the straight shaft that connect to the suction cylinder link and the operating exhaust cylinder link increases accordingly.

[0030] To further optimize the above technical proposal, depending on the power output requirements of the internal combustion engine, multiple sets of suction cylinder links 24 and operating exhaust cylinder links 34 may be connected in series to the straight shaft 1.

[0031] To further optimize the above technical proposal, the suction cylinder link 24 and the operating exhaust cylinder link 34 are connected to the suction cylinder piston pin 213 and the operating exhaust cylinder piston pin 314, and to the suction cylinder piston 23 and the operating exhaust cylinder piston 33, respectively. The shape and dimensions of the suction cylinder 2 may be changed according to the power output requirements of the internal combustion engine.

[0032] To further optimize the above technical proposal, a suction cylinder slide groove 29 is made in the side wall of the suction cylinder 2 at a position corresponding to the suction cylinder link 24. The suction cylinder slide groove 29 is arranged in an annular shape along the inner ring of the suction cylinder 2, and the suction cylinder link 24 passes through the suction cylinder slide groove 29.

[0033] To further optimize the above technical proposal, a suction cylinder seal portion 210 is provided at a position corresponding to the suction cylinder slide groove 29 in the lumen of the suction cylinder 2. The suction cylinder seal portion 210 is sealed and connected to the suction cylinder slide groove 29. The suction cylinder link 24 passes through the suction cylinder slide groove 29 and the suction cylinder seal portion 210 and is connected to the suction cylinder slide groove 29 corresponding to the suction cylinder link 24.

[0034] To further optimize the above technical proposal, the suction cylinder piston 23 has an arc shape that fits the lumen of the suction cylinder 2, and both ends of the suction cylinder piston 23 are operating surfaces, with a suction cylinder piston gas ring 211 and a suction cylinder piston oil ring 212 provided on either side wall of the operating surface. The suction cylinder seal portion 210 and the operating exhaust cylinder seal portion 311 are both annular in shape, and the suction cylinder seal portion 210 and the operating exhaust cylinder seal portion 311 rotate synchronously together with the suction cylinder link 24 and the operating exhaust cylinder link 34.

[0035] To further optimize the above technical proposal, an operating exhaust cylinder slide groove 310 is opened in the side wall of the operating exhaust cylinder 3 at a position corresponding to the operating exhaust cylinder link 34. The operating exhaust cylinder slide groove 310 is arranged in an annular shape along the inner ring of the operating exhaust cylinder 3, and the operating exhaust cylinder link 34 passes through the operating exhaust cylinder slide groove 310.

[0036] To further optimize the above technical proposal, an operating exhaust cylinder seal portion 311 is provided in the lumen of the operating exhaust cylinder 3 at a position corresponding to the operating exhaust cylinder slide groove 310. The operating exhaust cylinder seal portion 311 is sealed and connected to the operating exhaust cylinder slide groove 310. The operating exhaust cylinder link 34 passes through the operating exhaust cylinder slide groove 310 and the operating exhaust cylinder seal portion 311 and is connected to the operating exhaust cylinder slide groove 310 corresponding to the operating exhaust cylinder link 34.

[0037] To further optimize the above technical proposal, the operating exhaust cylinder piston 33 has an arc shape that fits the lumen of the operating exhaust cylinder 3, both ends of the operating exhaust cylinder piston 33 are operating surfaces, and an operating exhaust cylinder piston gas ring 312 and an operating exhaust cylinder piston oil ring 313 are provided on either side wall of the operating surface.

[0038] To further optimize the above technical proposal, the suction cylinder shut-off valve 21 and the operating exhaust cylinder shut-off valve 31 are unidirectional opening valve bodies, allowing passage only when the suction cylinder piston 23 and the operating exhaust cylinder piston 33 rotate clockwise. The suction cylinder shut-off valve 21 and the operating exhaust cylinder shut-off valve 31 are provided with return springs, and after the suction cylinder piston 23 and the operating exhaust cylinder piston 33 have passed, the suction cylinder shut-off valve 21 and the operating exhaust cylinder shut-off valve 31 return to their original positions and close due to the return springs. The pressure gas valve 4 may be opened by a mechanical structure, controlled by an electrical signal using a solenoid valve, or controlled by a pneumatic switch using an air-operated valve, as long as the corresponding function is achieved. Furthermore, the pressure gas valve 4 opens only after the operating exhaust cylinder piston 33 has passed the operating exhaust cylinder shut-off valve 31, and after compressed air in the suction cylinder front chamber 27 rapidly flows into the operating exhaust cylinder, the chamber 39 closes.

[0039] Operating principle In the initial state, the drive motor rotates the straight shaft 1, and the suction cylinder link 24 and the operating exhaust cylinder link 34 rotate as the straight shaft 1 rotates. When the suction cylinder link 24 rotates clockwise, the suction cylinder piston 23 rotates within the operating chamber 22 of the suction cylinder. At this time, the operating surface of the front end of the suction cylinder piston 23 gradually approaches the suction cylinder shut-off valve 21, the volume decreases, the gas in the front chamber 27 of the suction cylinder is continuously compressed, and the volume in the rear chamber 28 of the suction cylinder gradually increases, continuously drawing in gas through the suction cylinder intake port 25. Simultaneously, when the operating exhaust cylinder link 34 rotates clockwise and the operating exhaust cylinder piston 33 passes the operating exhaust cylinder shut-off valve 31, the pressure gas valve 4 opens, and the compressed gas in the front chamber 27 of the suction cylinder flows into the rear chamber 39 of the operating exhaust cylinder via the suction cylinder exhaust port 26, the pressure gas valve 4, and the operating exhaust cylinder intake port 35, and the pressure gas valve 4 closes. At this time, ignition occurs from the ignition device 37, combustion takes place in the rear chamber 39 of the operating exhaust cylinder, generating a large amount of high-temperature gas, which rotates the operating exhaust cylinder piston 33 clockwise, and the gas in the front chamber 38 of the operating exhaust cylinder is discharged from the exhaust port 36 of the operating exhaust cylinder. Initially, the drive motor drives the straight shaft 1, but after the suction cylinder link 24 and the operating exhaust cylinder link 34 start to operate, the drive motor stops, and the operating exhaust cylinder piston 33 rotates due to the ignition and combustion process in the rear chamber 39 of the operating exhaust cylinder, which in turn rotates the straight shaft 1, and power is output to the outside via the flywheel connection plate 11 of the straight shaft 1.

[0040] Each example in this specification is described in a gradual manner, and each example focuses on the differences from other examples. Parts that are identical or similar between examples may be referenced to one another.

[0041] Based on the above description of the disclosed embodiments, those skilled in the art can implement or utilize the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Accordingly, the present invention is not limited to these embodiments shown herein, but is applicable to the broadest scope that is consistent with the principles and novel features disclosed herein. [Explanation of symbols]

[0042] 1. Straight axis 11. Flywheel connection panel 12 keyways 2. Suction cylinder 21 Suction pressure cylinder shut-off valve 22 Operating chamber of suction cylinder 23 Suction Cylinder Piston 24 Suction Cylinder Link 25 Suction cylinder intake port 26 Suction cylinder exhaust port 27 Suction Cylinder Front Chamber 28 Suction cylinder rear chamber 29 Suction cylinder slide groove 210 Suction cylinder seal section 211 Suction Cylinder Piston Gas Ring 212 Suction Cylinder Piston Oil Ring 213 Suction Cylinder Piston Pin 3. Operating Exhaust Cylinder 31 Operating exhaust cylinder shut-off valve 32 Operating Exhaust Cylinder Operating Chamber 33 Operating Exhaust Cylinder Piston 34 Operating Exhaust Cylinder Link 35 Operating exhaust cylinder intake port 36 Operating exhaust cylinder exhaust port 37 Ignition system 38 Operating Exhaust Cylinder Front Chamber 39 Operating exhaust cylinder rear chamber 310 Operating exhaust cylinder slide groove 311 Operating exhaust cylinder seal section 312 Operating Exhaust Cylinder Piston Gas Ring 313 Operating Exhaust Cylinder Piston Oil Ring 314 Operating Exhaust Cylinder Piston Pin 4. Pressure gas valve 41 Pressure gas valve switch

Claims

1. A straight-shaft, piston-type internal combustion engine, It includes a straight shaft used in place of a crankshaft, an intake cylinder, and an operating exhaust cylinder, The suction cylinder is ring-shaped and has a hollow bore, a suction cylinder shut-off valve is provided in the bore of the suction cylinder, two of the suction cylinder shut-off valves divide the bore of the suction cylinder into two suction cylinder operating chambers, a suction cylinder piston is provided in the operating chamber of the suction cylinder, a suction cylinder link is connected between the suction cylinder pistons in the two operating chambers of the suction cylinder, the middle part of the suction cylinder link is fitted to the outside of the straight shaft, the rotation of the suction cylinder link causes the suction cylinder piston to rotate in the operating chamber of the suction cylinder, an suction cylinder intake port and an suction cylinder exhaust port are provided on both sides of the suction cylinder shut-off valve in the operating chamber of the suction cylinder, and as the output of the internal combustion engine increases, the number of suction cylinders, suction cylinder shut-off valves, suction cylinder operating chambers, suction cylinder pistons, and suction cylinder links increase accordingly. The suction cylinder and the operating exhaust cylinder are arranged in parallel along the axial direction of the straight shaft, the operating exhaust cylinder is ring-shaped and has a hollow bore, an operating exhaust cylinder shut-off valve is provided in the bore of the operating exhaust cylinder, the two operating exhaust cylinder shut-off valves divide the bore of the operating exhaust cylinder into two operating exhaust cylinder operating chambers, an operating exhaust cylinder piston is provided in the operating chamber of the operating exhaust cylinder, an operating exhaust cylinder link is connected between the operating exhaust cylinder pistons of the two operating chambers, the middle part of the operating exhaust cylinder link is fitted to the outside of the straight shaft, and as the operating exhaust cylinder link rotates, the operating exhaust cylinder piston rotates in the operating chamber, and an operating exhaust cylinder intake port is formed in the operating chamber of the operating exhaust cylinder A straight-shaft, piston-rotating internal combustion engine is characterized in that a dynamic exhaust cylinder exhaust port is provided, the operating exhaust cylinder intake port is close to the operating exhaust cylinder shut-off valve, an ignition device is provided in the operating chamber of the operating exhaust cylinder at a position close to the operating exhaust cylinder intake port, the suction pressure cylinder exhaust port and the operating exhaust cylinder intake port are in communication, and a pressure gas valve is provided in the communication passage, the pressure gas valve is closed before the operating exhaust cylinder piston passes the operating exhaust cylinder shut-off valve, opens after the operating exhaust cylinder piston passes the operating exhaust cylinder shut-off valve to allow intake, and as the output of the internal combustion engine increases, the number of the operating exhaust cylinder, operating exhaust cylinder shut-off valve, operating chamber of the operating exhaust cylinder, operating exhaust cylinder piston and operating exhaust cylinder link increase accordingly.

2. The straight-shaft, piston-type internal combustion engine according to claim 1, characterized in that the suction cylinder piston divides the working chamber of the suction cylinder into a front chamber and a rear chamber, the suction cylinder intake port is provided in the rear chamber, and the suction cylinder exhaust port is provided in the front chamber.

3. The straight-shaft, piston-rotating internal combustion engine according to claim 1, characterized in that the operating exhaust cylinder piston divides the operating chamber of the operating exhaust cylinder into an operating exhaust cylinder front chamber and an operating exhaust cylinder rear chamber, the operating exhaust cylinder intake port and ignition device are provided in the operating exhaust cylinder rear chamber, and the operating exhaust cylinder exhaust port is provided in the operating exhaust cylinder front chamber.

4. The straight shaft piston rotary internal combustion engine according to claim 1, characterized in that the surface of the straight shaft is provided with keyways or ring gears for connecting to the suction cylinder link and the operating exhaust cylinder link, the ends of the suction cylinder link and the operating exhaust cylinder link are provided with connecting keys or tooth holders that cooperate with the straight shaft, the end of the straight shaft is provided with a flywheel connecting plate for power output, and as the output of the internal combustion engine increases, the number of keyways or ring gears on the surface of the straight shaft that connect to the suction cylinder link and the operating exhaust cylinder link increases accordingly.

5. The straight-shaft, piston-rotating internal combustion engine according to claim 1, characterized in that a suction cylinder slide groove is opened in the side wall of the suction cylinder at a position corresponding to the suction cylinder link, the suction cylinder slide groove is arranged in an annular shape along the inner ring of the suction cylinder, and the suction cylinder link passes through the suction cylinder slide groove.

6. The linear-shaft, piston-rotating internal combustion engine according to claim 5, characterized in that a suction cylinder seal portion is provided at a position corresponding to the suction cylinder slide groove in the bore of the suction cylinder, the suction cylinder seal portion is sealed and connected to the suction cylinder slide groove, and the suction cylinder link passes through the suction cylinder slide groove and the suction cylinder seal portion and is connected to the suction cylinder link.

7. The straight-shaft, piston-rotating internal combustion engine according to claim 6, characterized in that the suction cylinder piston has an arc shape that fits into the lumen of the suction cylinder, both ends of the suction cylinder piston are operating surfaces, and a suction cylinder gas ring and a suction cylinder oil ring are provided on either of the side walls of the operating surfaces.

8. The straight-shaft, piston-rotating internal combustion engine according to claim 1, characterized in that an operating exhaust cylinder slide groove is opened in the side wall of the operating exhaust cylinder at a position corresponding to the operating exhaust cylinder link, the operating exhaust cylinder slide groove is arranged in an annular shape along the inner ring of the operating exhaust cylinder, and the operating exhaust cylinder link passes through the operating exhaust cylinder slide groove.

9. The linear-shaft, piston-rotating internal combustion engine according to claim 8, characterized in that an operating exhaust cylinder seal portion is provided in the lumen of the operating exhaust cylinder at a position corresponding to the operating exhaust cylinder slide groove, the operating exhaust cylinder seal portion is sealed and connected to the operating exhaust cylinder slide groove, and the operating exhaust cylinder link passes through the operating exhaust cylinder slide groove and the operating exhaust cylinder seal portion and is connected to the operating exhaust cylinder link.

10. The straight-shaft, piston-rotating internal combustion engine according to claim 9, characterized in that the operating exhaust cylinder piston has an arc shape that fits into the lumen of the operating exhaust cylinder, both ends of the operating exhaust cylinder piston are operating surfaces, and an operating exhaust cylinder gas ring and an operating exhaust cylinder oil ring are provided on either of the side walls of the operating surfaces.