Piston, rotor internal combustion engines, vehicles, aircraft and ships

Abstract

The present invention provides a piston, a rotor internal combustion engine, a vehicle, an aircraft and a ship, belonging to the field of internal combustion engines. A piston comprises: a piston body, each provided with an air accommodating chamber and a ventilation groove, wherein the ventilation groove is provided with openings on the top surface and the reverse side surface of the piston body; and an opening and closing assembly, which is provided on the piston body and is used to block or connect the air accommodating chamber and the ventilation groove. The rotor internal combustion engine, the vehicle, the aircraft and the ship of the present invention adopt the above-mentioned piston. In the rotor internal combustion engine made of the piston of the present invention, the impact force generated by the combustion of the combustible gas in the combustion chamber directly acts on the reverse side surface of the piston to drive the rotor to rotate, thereby eliminating the conversion of the crank-connecting rod mechanism, generating a greater torque on the rotor and achieving a higher energy conversion efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of internal combustion engines, and more specifically, relates to a piston, a rotor internal combustion engine, a vehicle, an aircraft and a ship. Background Art

[0002] The most common internal combustion engine is the reciprocating piston internal combustion engine, which mixes fuel and air and burns them in the cylinder. The heat energy released generates high-temperature and high-pressure combustion gas in the cylinder. The expansion of the combustion gas pushes the piston to do work, and then outputs the mechanical energy through the crank-connecting rod mechanism or other mechanisms to drive the driven machine to work. The top of the cylinder of the existing reciprocating piston internal combustion engine is a combustion chamber, and a throttle is provided on the cylinder head to control the intake of the combustion chamber. After the combustion chamber is filled with combustible gas, the combustible gas in the combustion chamber is compressed by the sliding of the piston, and finally the combustible gas is ignited, and the gas expansion pushes the piston to do work. In this structure, the combustible gas contacts the top surface of the piston, and after the combustible gas is burned, it pushes the piston to do linear motion. This requires the reciprocating piston internal combustion engine to convert the linear motion of the piston into the rotation of the crankshaft. The existence of the conversion process causes the reciprocating piston internal combustion engine to have a small output torque and low energy conversion. Summary of the invention

[0003] The purpose of the present invention is to provide a piston to solve the technical problem that in the reciprocating piston internal combustion engine in the prior art, the combustible gas is stored in the combustion chamber, so that the combustion of the combustible gas in the combustion chamber can only push the piston to make linear motion, and the linear motion of the piston needs to be converted into the rotation of the crankshaft through a crank-connecting rod mechanism, resulting in a small output torque of the reciprocating piston internal combustion engine and a low energy conversion efficiency.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a piston, comprising:

[0005] The piston body is provided with an air-containing cavity and an air-exchange groove, and the air-exchange groove is provided with openings on the top surface and the opposite side surface of the piston body; and

[0006] The opening and closing assembly is arranged on the piston body and is used for blocking or connecting the air containing cavity and the air exchange groove.

[0007] Furthermore, the opening and closing assembly comprises:

[0008] A ventilation hole is provided on the piston body and communicates between the ventilation groove and the air containing cavity;

[0009] a sealing plate, slidably disposed on the piston body, and used for cutting into the ventilation hole to block the ventilation hole; and

[0010] A pry bar is rotatably arranged on the piston body, one end of which abuts against the sealing plate, and is used to push the sealing plate out of the ventilation hole when the other end is subjected to force.

[0011] Furthermore, a pressure-bearing surface parallel to the axis of the piston is provided on one side of the piston body.

[0012] Furthermore, the top surface of the piston body includes a main area and a fitting slope surface located on the opposite side of the main area, and the fitting slope surface is curved in a direction facing away from the main area.

[0013] Furthermore, the main area is an outwardly convex arc-shaped curved surface.

[0014] Furthermore, the opening of the ventilation groove on the opposite side surface of the piston body extends to the fitting slope to form an opening of the ventilation groove on the top surface of the piston body.

[0015] The beneficial effect of the piston provided by the present invention is that compared with the prior art, after the piston of the present invention is applied to a rotary engine, when the piston main body compresses the combustible gas in the piston cavity, the opening and closing component connects the air storage cavity and the ventilation groove, so that the compressed gas enters from the opening of the ventilation groove on the top surface of the piston main body, and then the opening and closing component blocks the air storage cavity and the ventilation groove, so that the compressed gas is stored in the air storage cavity, and then after the piston is inserted into the working groove of the stator ring, the opening and closing component connects the air storage cavity and the ventilation groove, so that the gas in the air storage cavity is released into the combustion chamber from the opening of the ventilation groove on the opposite side of the piston main body, and finally, by igniting the combustible gas in the combustion chamber, the gas expansion pushes the piston to drive the rotor to rotate forward, so that the rotary engine does not need a crank-connecting rod mechanism to convert the linear motion of the piston into the rotational motion of the crankshaft, thereby improving the output torque and energy conversion efficiency.

[0016] The present invention also provides a rotor internal combustion engine including the above-mentioned piston. The beneficial effect of the rotor internal combustion engine provided by the present invention is that the impact force generated by the combustion of the combustible gas in the combustion chamber directly acts on the reverse side of the piston body to drive the rotor to rotate, eliminating the conversion of the crank-connecting rod mechanism, generating a larger torque on the rotor, and having a higher energy conversion efficiency.

[0017] The present invention also provides a vehicle including the above-mentioned rotary internal combustion engine. The beneficial effects of the vehicle provided by the present invention are the same as the beneficial effects of the above-mentioned rotary internal combustion engine, which will not be repeated here.

[0018] The present invention also provides an aircraft including the above-mentioned rotor internal combustion engine. The beneficial effects of the aircraft provided by the present invention are the same as the beneficial effects of the above-mentioned rotor internal combustion engine, which will not be repeated here.

[0019] The present invention also provides a ship comprising the above-mentioned rotor internal combustion engine. The beneficial effects of the ship provided by the present invention are the same as the beneficial effects of the above-mentioned rotor internal combustion engine, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A front view of a rotor internal combustion engine provided by an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Side view of

[0023] Figure 3 for Figure 1 The cross-sectional view at AA in the middle, the arrow direction in the figure is positive;

[0024] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0025] Figure 5 for Figure 3 Enlarged view of point C in the middle;

[0026] Figure 6 for Figure 3 A cross-sectional view of a rotor internal combustion engine in which the piston is inserted into the working groove after the rotor rotates forward;

[0027] Figure 7 for Figure 6 The enlarged view of D in the figure;

[0028] Figure 8 for Figure 3 Side view of the middle piston;

[0029] Fig. 9 for Figure 3 A cross-sectional view of the middle stator ring, where the arrow direction is the positive direction;

[0030] Fig.10 for Figure 3 Assembly drawing of the rotor and piston;

[0031] Fig.11 for Fig.10 Side view of

[0032] Fig.12A cross-sectional view of a rotor internal combustion engine provided by another embodiment of the present invention, wherein the arrow direction in the figure is the positive direction;

[0033] Fig.13 for Fig.12 Structural diagram of the main cam, opening cam, opening follower, closing cam, closing follower and piston;

[0034] Fig.14 for Fig.13 A cross-sectional view of the middle piston;

[0035] Fig.15 for Fig.13 Side view of the middle main cam, with the arrow direction indicating the positive direction;

[0036] Fig.16 for Fig.13 Side view of the middle opening cam, with the arrow direction in the figure being the positive direction;

[0037] Fig.17 for Fig.13 Side view of the middle closing cam, with the arrow direction in the figure being the positive direction;

[0038] Fig.18 A schematic diagram of the structure of a piston ring in a rotary internal combustion engine provided by an embodiment of the present invention;

[0039] Fig.19 for Fig.18 Enlarged view of point E in the middle;

[0040] Fig. 20 for Fig.19 Side view of.

[0041] Among them, the reference numerals in the figure are:

[0042] 1-stator ring; 11-intake groove; 111-intake port; 12-gas seal area; 13-work groove; 131-ignition assembly; 132-exhaust port; 134-combustion chamber; 135-slip chamber; 14-partition plate; 15-oil filling gap; 16-lubricating oil hole; 2-rotor; 21-piston cavity; 22-compression chamber; 23-fitting surface; 25-circumferential sealing ring; 26-axial sealing strip; 27-guide seat; 271-main guide hole; 272-opening guide hole; 273-closing guide hole; 3-piston body; 31-main area; 32-fitting slope; 33-pressure surface; 41-gas chamber; 42-air exchange groove; 43-air exchange hole; 44-sealing plate; 45-pry bar; 46-opening cam; 46 1-open follower; 462-compression opening section; 463-power opening section; 47-closing cam; 471-closing follower; 472-compression closing section; 6-main cam; 61-cam groove; 611-intake section; 612-compression section; 613-insertion section; 614-power holding section; 615-recovery section; 62-main follower; 7-ignition timing mechanism; 71-normally closed base; 72-long closed contact ring; 73-normally closed brush; 74-timing base; 75-timing brush; 76-ignition contact; 8-piston ring; 81-sealing section; 811-card slot; 82-axial limit plug; 83-axial limit slot; 84-radial limit plug; 85-radial limit slot; 86-elastic strip. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] Please also read Figure 1 , Figure 2 , Figure 3 , Figure 6 , Fig. 9 as well as Fig.12 Now, the piston provided by the embodiment of the present invention is described. A piston comprises a piston body 3 and an opening and closing assembly.

[0045] The piston body 3 is provided with an air chamber 41 and a ventilation groove 42, and the ventilation groove 42 is provided with openings on the top surface and the opposite side of the piston body 3. The opening and closing assembly is provided on the piston body 3, and is used to block or connect the air chamber 41 and the ventilation groove 42.

[0046] Compared with the prior art, after the piston of the embodiment of the present invention is applied to the rotor 2 engine, when the piston body 3 compresses the combustible gas in the piston chamber 21, the opening and closing component connects the air chamber 41 and the ventilation groove 42, so that the compressed gas enters from the opening of the ventilation groove 42 on the top surface of the piston body 3, and then the opening and closing component blocks the air chamber 41 and the ventilation groove 42, so that the compressed gas is stored in the air chamber 41, and then after the piston is inserted into the working groove 13 of the stator ring 1, the opening and closing component connects the air chamber 41 and the ventilation groove 42, so that the gas in the air chamber 41 is released from the opening of the ventilation groove 42 on the reverse side of the piston body 3 into the combustion chamber 134, and finally, by igniting the combustible gas in the combustion chamber 134, the gas expansion pushes the piston to drive the rotor 2 to rotate forward, so that the rotor 2 engine does not need a crank-connecting rod mechanism to convert the linear motion of the piston into the rotational motion of the crankshaft, thereby improving the output torque and energy conversion efficiency.

[0047] The use of this type of piston can prevent the compressed gas in the gas chamber 41 from leaking out, thereby reducing the sealing requirements for the piston, the rotor 2 and the stator ring 1.

[0048] The piston of the embodiment of the present invention is described below in conjunction with a rotary internal combustion engine.

[0049] Please also read Figures 1 to 20 The rotor internal combustion engine provided by the embodiment of the present invention is now described. The rotor internal combustion engine includes at least one power unit. Each power unit includes a stator ring 1, a rotor 2, a piston body 3 and a main cam mechanism.

[0050] The two directions on the circumference of the stator ring 1 are respectively forward and reverse, and at least one circulation group is arranged on the inner circumference. Each circulation group includes an air intake groove 11, an air sealing area 12 and a working groove 13 arranged in sequence along the forward direction on the inner circumference of the stator ring 1. The air intake groove 11 is provided with an air inlet 111, and the forward end of the working groove 13 is provided with an exhaust port 132, and the reverse end is provided with an ignition component 131.

[0051] The rotor 2 is arranged in the stator ring 1 for positive rotation, and the outer circumference is slidingly sealed with the inner circumference of the stator ring 1. A piston cavity 21 is arranged radially, and the outer end opening of the piston cavity 21 is used to connect with the air inlet groove 11, the air sealing area 12 and the working groove 13 in sequence during the rotation of the rotor 2.

[0052] The piston body 3 is slidably disposed in the piston cavity 21 , and the top surface is used to surround the inner wall of the piston cavity 21 to form a compression chamber 22 .

[0053] The main cam mechanism includes a main cam 6 arranged on the stator ring 1 and a main follower 62 connected to the piston body 3 and rotating with the rotor 2. The main follower 62 and the main cam 6 form a cam mechanism for driving the piston body 3 during the rotation of the rotor 2, so that the piston body 3 can successively suck the gas in the intake groove 11 into the compression chamber 22, cooperate with the gas sealing area 12 to compress the gas in the compression chamber 22, insert into the working groove 13 to divide the working groove 13 into a combustion chamber 134 accommodating the ignition component 131 and a sliding chamber 135 for the piston body 3 to slide forward and connected with the exhaust port 132, and withdraw from the working groove 13.

[0054] The piston body 3 is also provided with a gas storage structure with an inlet located on the top surface of the piston body 3 and an outlet located on the opposite side of the piston body 3. The gas storage structure is used to accommodate the compressed gas in the compression chamber 22 and release the compressed gas into the combustion chamber 134.

[0055] When in use, the mixed gas of fuel and air is passed into the intake groove 11 from the intake port 111, and the rotor 2 rotates forward in the stator ring 1. When the outer end opening of the piston cavity 21 on the rotor 2 docks with the intake groove 11, the main cam mechanism drives the piston body 3 to suck the mixed gas in the intake groove 11 into the compression chamber 22; as the rotor 2 continues to rotate, the outer end opening of the piston cavity 21 docks with the air sealing area 12, and the main cam mechanism drives the piston body 3 to cooperate with the air sealing area 12 to compress the mixed gas in the compression chamber 22. In this process, the gas storage structure accommodates the compressed mixed gas in the compression chamber 22. gas; then the rotor 2 continues to rotate, the outer end opening of the piston chamber 21 docks with the working groove 13, and the main cam mechanism drives the piston body 3 to insert into the working groove 13 to divide the working groove 13 into a combustion chamber 134 and a sliding chamber 135. At this time, the gas storage structure releases the compressed mixed gas into the combustion chamber 134, and then the mixed gas in the combustion chamber 134 is ignited by the ignition component 131. The impact generated by the combustion of the mixed gas acts on the reverse side of the piston body 3, pushing the piston body 3 to rotate forward along the sliding chamber 135, thereby driving the rotor 2 to rotate forward and complete a cycle. In the process of the piston body 3 sliding along the working groove 13, the piston body 3 can just push the combustion exhaust gas remaining in the previous cycle in the working groove 13 to be discharged from the exhaust port 132. Then the rotor 2 continues to rotate, and the outer end opening of the piston chamber 21 docks with the intake groove 11 again, and the next cycle begins.

[0056] In the rotor internal combustion engine of the embodiment of the present invention, the impact force generated by the combustion of compressed gas directly acts on the reverse side of the piston body 3 to drive the rotor 2 to rotate, eliminating the conversion of the crank-connecting rod mechanism, generating a greater torque on the rotor 2 and achieving a higher energy conversion efficiency.

[0057] The specific implementation of the relevant components in the rotary internal combustion engine is given below.

[0058] Stator ring 1

[0059] Please also read Figures 1 to 7 as well as Fig. 9 As a specific embodiment of the stator ring 1 of the rotor internal combustion engine provided by the invention, the two directions on the circumference of the stator ring 1 are respectively forward and reverse, and at least one circulation group is provided on the inner circumference, and each circulation group includes an air intake groove 11, an air sealing area 12 and a working groove 13 arranged in sequence along the forward direction on the inner circumference of the stator ring 1.

[0060] The air inlet groove 11 is provided with an air inlet 111 and is used to communicate with the outer end opening of the piston chamber 21 on the rotor 2. The portion of the inner circumference of the stator ring 1 between the air inlet groove 11 and the working groove 13 forms an air seal area 12, which is used to seal the outer end opening of the piston chamber 21. The working groove 13 is provided with an exhaust port 132 at the positive end, and an ignition assembly 131 at the reverse end. The working groove 13 is used to be inserted into the piston body 3 in the piston chamber 21 and is divided by the piston body 3 into a combustion chamber 134 accommodating the ignition assembly 131 and a sliding chamber 135 for the piston body 3 to slide forward and communicate with the exhaust port 132.

[0061] More specifically, the inner circumference of the stator ring 1 is cylindrical, and a water jacket can be provided in the wall for cooling. The air inlet groove 11 is an arc-shaped long groove provided along the circumference of the inner circumference of the stator ring 1. The width of the air inlet groove 11 in the axial direction of the stator ring 1 can be greater than, equal to or less than the width of the outer end opening of the piston cavity 21 in the axial direction of the stator ring 1. It is only necessary to meet the requirement that the outer end opening of the piston cavity 21 can be docked with the air inlet groove 11 during the rotation of the rotor 2. The bottom surface of the working groove 13 is consistent with the top surface of the piston body 3, so that after the piston body 3 is inserted into the air inlet groove 11, the top surface of the piston body 3 can be in contact with the bottom surface of the working groove 13, so that the combustion chamber 134 is sealed.

[0062] The working groove 13 is an arc-shaped long groove arranged along the circumference of the inner circumference of the stator ring 1. The width of the working groove 13 in the axial direction of the stator ring 1 is equal to the width of the piston body 3 in the axial direction of the stator ring 1, so that the piston body 3 can be inserted into the working groove 13 and divide the working groove 13 into two sections. The reverse end of the working groove 13 is closed by the piston body 3 to form a combustion chamber 134 for the combustion of the mixed gas. The forward end of the working groove 13 forms a sliding chamber 135 for the piston body 3 to slide in the forward direction in the working groove 13. The end surface of the reverse end of the working groove 13 is an arc surface, so that the piston body 3 can be gradually inserted into the working groove 13 along the arc surface, and a groove is provided on the end surface of the reverse end of the working groove 13. The ignition assembly 131 can be a spark plug installed in the groove. The end surface of the forward end of the working groove 13 is provided with an exhaust port 132 connected to the outside of the stator ring 1 for exhausting the combustion exhaust gas.

[0063] The air sealing area 12 is the area on the inner circumference of the stator ring 1 between the air inlet groove 11 and the working groove 13, which is used to keep the outer end opening of the piston chamber 21 closed, so that when the piston body 3 slides toward the air sealing area 12 in the piston chamber 21, it can compress the mixed gas in the compression chamber 22.

[0064] See also Fig. 9 As a specific embodiment of the stator ring 1 of the rotor internal combustion engine provided by the invention, a plurality of circulation groups are sequentially arranged along the circumferential direction on the inner circumferential surface of the same stator ring 1. With this arrangement, when the rotor 2 rotates one circle in the stator ring 1, the piston body 3 will be pushed in the plurality of circulation groups in turn, thereby improving the power of the rotor internal combustion engine. In this case, the rotor 2 may be provided with only one piston chamber 21, and a piston body 3 in the piston chamber 21 completes the cycle of intake, compression and ignition in each circulation group in turn. The rotor 2 may also be provided with a plurality of piston chambers 21, and a piston body 3 is installed in each piston chamber 21, so that different piston bodies 3 work in different circulation groups to jointly push the rotor 2.

[0065] Please also read Figure 1 , Figure 2 as well as Fig. 9 As a specific embodiment of the stator ring 1 of the rotor internal combustion engine provided by the invention, the stator ring 1 is provided with a partition 14 on the end surface of the inner cavity of the stator ring 1.

[0066] Specifically, partitions 14 may be provided on both sides of the stator ring 1 to close both ends of the inner cavity. The main cam 6 of the main cam mechanism may be located in the inner cavity of the stator ring 1 and fixedly connected to the stator ring 1 by being fixed on the partition 14. The partition 14 is provided with an axial hole for allowing the rotating shaft of the rotor 2 to pass through the stator ring 1.

[0067] See also Figure 1 As a specific embodiment of the stator ring 1 of the rotor internal combustion engine provided by the invention, the cylinder body of the rotor internal combustion engine includes at least two coaxially arranged stator rings 1; the partitions 14 of the two adjacent stator rings 1 are arranged opposite to each other and form an oil filling gap 15 in the middle, and the partition 14 is provided with a lubricating oil hole 16 connecting the oil filling gap 15 and the inner cavity of the stator ring 1.

[0068] A rotor internal combustion engine may include a plurality of coaxially arranged power units, the stator rings 1 of each power unit are fixedly connected to each other to form a cylinder body, and the rotors 2 are coaxially fixedly connected to each other to form a rotor group. The partitions 14 of two adjacent power units are arranged at a certain distance to form a closed oil filling gap 15, and the position of the lubricating oil hole 16 on the partition 14 may be arranged to face the various components in the inner cavity of the stator ring 1, such as the piston body 3, the main cam mechanism, etc., by filling the oil filling gap 15, the oil enters the inner cavity of the stator ring 1 from the lubricating oil hole 16 to lubricate the various components in the inner cavity of the stator ring 1.

[0069] Rotor 2

[0070] Please also read Figure 3 , Figure 6 , Fig.10 , Fig.11 as well as Fig.12 As a specific embodiment of the rotor 2 of the rotor internal combustion engine provided by the invention, the rotor 2 is arranged in the stator ring 1 for positive rotation, and the outer peripheral surface is slidably sealed with the inner peripheral surface of the stator ring 1. The rotor 2 is provided with a piston cavity 21 arranged in a radial direction, and the outer end of the piston cavity 21 forms an opening on the outer peripheral surface of the rotor 2. The outer end opening of the piston cavity 21 is used to respectively dock with the air inlet groove 11, the air sealing area 12 and the working groove 13 of the stator ring 1 in sequence during the rotation of the rotor 2.

[0071] Specifically, the outer circumference of the rotor 2 is a cylindrical surface, and the outer diameter is the same as the inner diameter of the stator ring 1, so that after the stator ring 1 is placed in the stator ring 1, the outer circumference of the rotor 2 and the inner circumference of the stator ring 1 form a dynamic sealing connection for sealing the air intake groove 11 and the working groove 13.

[0072] Please also read Figure 3 , Figure 6 , Fig.10 as well as Fig.12 As a specific embodiment of the rotor 2 of the rotor internal combustion engine provided by the invention, a receiving chamber for accommodating the main cam mechanism is provided in the middle of the rotor 2. The main cam mechanism and the like can be arranged in the receiving chamber, thereby reducing the volume of the rotor 2 engine of this embodiment. The rear end of the piston chamber 21 is communicated with the receiving chamber, and the main follower 62 extends from the rear end opening of the piston chamber 21 into the piston chamber 21 and is connected to the piston body 3. More specifically, the receiving chamber can be arranged at the center of the rotor 2, and the inner ends of each piston chamber 21 are communicated with the receiving chamber.

[0073] Please also read Fig.12 as well as Fig.13 As a specific embodiment of the rotor 2 of the rotor internal combustion engine provided by the invention, the rotor 2 is further provided with a guide seat 27, and the guide seat 27 is provided with a main guide hole 271 for slidingly passing the master and slave members 62. This arrangement enables the master and slave members 62 to pass through the main guide hole 271 and rotate with the rotor 2, thereby improving the movement stability of the master and slave members 62 and reducing the shaking of the master and slave members 62. More specifically, the guide seat 27 can be located in the accommodating cavity of the rotor 2 or in the inner end of the piston cavity 21.

[0074] Please also read Figure 7As a specific embodiment of the rotor 2 of the rotor internal combustion engine provided by the invention, the inner wall on the opposite side of the piston cavity 21 is provided with a fitting surface 23 which is parallel to the axis of the rotor 2 and the axis of the piston cavity 21 respectively. The fitting surface 23 is used for sliding sealing with the pressure-bearing surface 33 of the piston body 3. More specifically, the outer wall on the opposite side of the piston body 3 is provided with a pressure-bearing surface 33 for bearing the impact in the combustion chamber 134, and the pressure-bearing surface 33 can be a plane, and the corresponding fitting surface 23 of the piston cavity 21 is also a plane.

[0075] See also Fig.11 As a specific embodiment of the rotor 2 of the rotor internal combustion engine provided by the invention, at least two circumferential sealing rings 25 are arranged around the outer circumferential surface of the rotor 2, and the at least two circumferential sealing rings 25 are respectively located on both sides of the outer end opening of the piston cavity 21 in the axial direction of the rotor 2.

[0076] Two circumferential sealing grooves are arranged around the outer circumferential surface of the rotor 2, and the two circumferential sealing grooves are respectively located on both sides of the outer end opening of the piston cavity 21 in the axial direction of the rotor 2. Two circumferential sealing rings 25 are respectively installed in the two circumferential sealing grooves. The circumferential sealing rings 25 can improve the sealing performance of the outer circumferential surface of the rotor 2 and the inner circumferential surface of the stator ring 1. The two circumferential sealing rings 25 are respectively located on both sides of the outer end opening of the piston cavity 21 in the axial direction of the rotor 2, which can improve the sealing performance of the outer end opening of the sealed piston cavity 21 on both sides of the axial direction of the rotor 2.

[0077] See also Fig.11 As a specific embodiment of the rotor 2 of the rotor internal combustion engine provided by the invention, at least two axial sealing strips 26 are axially provided on the outer peripheral surface of the rotor 2, and the at least two axial sealing strips 26 are respectively located on both sides of the outer end opening of the piston cavity 21 in the circumferential direction of the rotor 2.

[0078] At least two axial sealing grooves are provided along the axial direction on the outer peripheral surface of the rotor 2. The at least two axial sealing grooves are respectively located on both sides of the outer end opening of the piston cavity 21 in the circumferential direction of the rotor 2. The axial sealing grooves are used to install the axial sealing strips 26. The axial sealing strips 26 can improve the sealing performance of the outer peripheral surface of the rotor 2 and the inner peripheral surface of the stator ring 1. The at least two axial sealing strips 26 are respectively located on both sides of the outer end opening of the piston cavity 21 in the circumferential direction of the rotor 2, which can improve the sealing performance of the outer end opening of the sealing piston cavity 21 in the circumferential direction of the rotor 2.

[0079] More specifically, the cross section of the piston cavity 21 is rectangular, semicircular or elliptical. The shape of the piston cavity 21 can be any shape that matches the piston body 3.

[0080] More specifically, the rotor 2 has a plurality of piston cavities 21 distributed along the circumferential direction. The same rotor 2 has a plurality of piston cavities 21 distributed along the circumferential direction, and a piston body 3 may be disposed in each piston cavity 21. At this time, a circulation group may be provided on the inner circumferential surface of the stator ring 1, and the piston body 3 in each piston cavity 21 circulates and works in the circulation group in turn, which can reduce the working intensity of each piston body 3, extend the service life of the piston body 3, and also increase the power of the rotor 2 engine of this embodiment. A plurality of circulation groups may be provided on the inner circumferential surface of the stator ring 1, and the piston body 3 in each piston cavity 21 circulates and works in each circulation group in turn, which can greatly increase the torque and power of the rotor 2 engine of this embodiment.

[0081] See also Fig.10 As a specific embodiment of the rotor 2 of the rotor internal combustion engine provided by the invention, multiple piston chambers 21 are distributed along the circumference of the rotor 2, and each piston chamber 21 is arranged along the radial direction of the rotor 2. Overall, multiple piston chambers 21 are radially arranged on the rotor 2 with the rotor 2 axis as the center.

[0082] Piston body 3

[0083] The cross section of the piston body 3 is rectangular, semicircular or elliptical. The shape of the piston cavity 21 can be any shape that matches the piston body 3. If the cross section of the piston body 3 is semicircular, the side surface that is flat forms the pressure-bearing surface 33. If the cross section of the piston body 3 is elliptical, the side surface with a smaller curvature forms the pressure-bearing surface 33.

[0084] See also Figure 5 , Figure 7 and Fig.14 As a specific embodiment of the piston body 3 of the rotary internal combustion engine provided by the invention, a pressure-bearing surface 33 parallel to the axis of the piston body 3 is provided on one side of the piston body 3. The pressure-bearing surface 33 is used to withstand the impact generated by the combustion of the combustible gas in the combustion chamber 134. More specifically, the pressure-bearing surface 33 is a plane, and the corresponding fitting surface 23 of the piston cavity 21 is also a plane.

[0085] Please also read Figures 3 to 8 as well as Fig.14As a specific embodiment of the piston body 3 of the rotor internal combustion engine provided by the invention, the top surface of the piston body 3 includes a main area 31 and a fitting slope 32 located on the opposite side of the main area 31, and the fitting slope 32 is curved in the direction opposite to the main area 31. The main area 31 on the top surface of the piston body 3 is opposite to the bottom surface of the working groove 13. Under the push of the main follower 62 of the main cam mechanism, the fitting slope 32 fits the wall surface of the opposite end of the working groove 13 and slides along the wall surface of the opposite end of the working groove 13 until the top surface of the piston body 3 fits and seals with the bottom surface of the working groove 13, which can reduce the wear on the opposite side of the piston body 3 and reduce the resistance. The fitting slope 32 matches the wall surface of the opposite end of the working groove 13 of the stator ring 1. More specifically, the fitting slope 32 is a convex arc-shaped curved surface, and the wall surface of the opposite end of the working groove 13 is a concave arc-shaped curved surface.

[0086] See also Figure 7 As a specific embodiment of the piston body 3 of the rotor internal combustion engine provided by the invention, the main area 31 of the top surface of the piston body 3 is a convex arc-shaped curved surface. After the piston body 3 is inserted into the intake groove 11, the main area 31 of the top surface of the piston body 3 can fit with the bottom surface of the working groove 13 and slide along the bottom surface of the working groove 13, so that the combustion chamber 134 remains sealed. The bottom surface of the working groove 13 is a concave arc curved surface, and the main area 31 is consistent with the bottom surface of the working groove 13.

[0087] The outer periphery of the piston body 3 is provided with a piston ring groove, and a piston ring 8 is provided in the piston ring groove. Figures 18 to 20 As a specific embodiment of the piston ring 8 of the rotor internal combustion engine provided by the invention, the piston ring 8 includes at least two sealing segments 81; an axial limit plug 82 is provided on the end face of the first end of each sealing segment 81, and a radial limit plug 84 is provided on the top of the axial limit plug 82; an axial limit slot 83 for axially limiting the axial limit plug 82 of the adjacent sealing segment 81 is provided on the end face of the second end of the sealing segment 81, and a radial limit slot 85 for radially limiting the radial limit plug 84 of the adjacent sealing segment 81 is provided at the bottom of the axial limit slot 83; the sealing segment 81 is also provided with an elastic component for radially expanding the sealing segment 81 outward.

[0088] When in use, multiple sealing segments 81 are wrapped around the groove of the piston body 3 and spliced ​​into a piston ring 8. The sealing segments 81 are stretched radially outward by the elastic component, so that each sealing segment 81 is pressed against the inner wall of the piston cavity 21 to form a seal. The two adjacent sealing segments 81 are inserted into the axial limiting slot 83 through the axial limiting plug 82, so that the two adjacent sealing segments 81 are relatively fixed in the axial direction to avoid leakage caused by axial misalignment. The radial limiting plug 84 is inserted into the radial limiting slot 85, so that the two adjacent sealing segments 81 are relatively fixed in the radial direction. The pressure of the elastic component of the two adjacent sealing segments 81 will be transmitted to the two adjacent sealing segments 81, so that the pressure of the two adjacent sealing segments 81 on the inner wall of the piston cavity 21 is more even, and the sealing between the outer periphery of the piston body 3 and the piston cavity 21 is more uniform.

[0089] Please also read Fig.18 As a specific embodiment of the piston ring 8 of the rotor internal combustion engine provided by the invention, the sealing segment 81 is in an angled shape. The sealing segments 81 can be spliced ​​into a polygonal piston ring 8. More specifically, the sealing segment 81 is in an angled shape of 90 degrees. Each piston ring 8 includes four sealing segments 81, and the four sealing segments 81 surround a rectangular shape and the ends of adjacent sealing segments 81 are connected.

[0090] See also Fig. 20 As a specific embodiment of the piston ring 8 of the rotor internal combustion engine provided by the invention, in the axial direction of the piston ring 8, the thickness of the radial limit plug 84 is less than or equal to the thickness of the axial limit slot 83, so as to allow the radial limit plug 84 to be inserted into the radial limit slot 85 through the axial limit slot 83. More specifically, the thickness of the radial limit plug 84 in the axial direction of the piston ring 8 is the same as the thickness of the axial limit plug 82 in the axial direction of the piston ring 8, and the two side surfaces of the radial limit plug 84 in the axial direction of the piston ring 8 and the two side surfaces of the axial limit plug 82 in the axial direction of the piston ring 8 are respectively coplanar. The thickness of the radial limit slot 85 in the axial direction of the piston ring 8 is the same as the thickness of the axial limit slot 83 in the axial direction of the piston ring 8, and the two inner wall surfaces of the radial limit slot 85 in the axial direction of the piston ring 8 and the two inner wall surfaces of the axial limit slot 83 in the axial direction of the piston ring 8 are respectively coplanar.

[0091] See also Fig.19 As a specific embodiment of the piston ring 8 of the rotor internal combustion engine provided by the invention, in the radial direction of the piston ring 8, the width of the axial limit plug 82 is greater than the width of the radial limit plug 84.

[0092] See also Fig.19 As a specific embodiment of the piston ring 8 of the rotor internal combustion engine provided by the invention, the axial limiting slot 83 is open on both sides of the piston ring 8 in the radial direction.

[0093] See also Fig.18As a specific embodiment of the piston ring 8 of the rotor internal combustion engine provided by the invention, the elastic component includes an elastic strip 86 whose two ends are respectively connected to the sealing segment 81 and the middle part protrudes from the radial inner side of the sealing segment 81.

[0094] See also Fig.18 As a specific embodiment of the piston ring 8 of the rotor internal combustion engine provided by the invention, a groove 811 is provided on the radial inner side of the sealing section 81, and the two ends of the elastic strip 86 are embedded in the groove 811 and the middle part is deformed and convex inwardly in the radial direction. The groove 811 is a long groove arranged along the circumference of the radial inner side of the sealing section 81. The elastic strip 86 can be a long steel strip. The length of the elastic strip 86 is greater than the length of the groove 811. The two ends of the elastic strip 86 are embedded in the two ends of the groove 811, so that the middle part of the elastic strip 86 is deformed and convex inwardly in the radial direction. After the sealing section 81 is installed on the piston body 3, the middle part of the elastic strip 86 abuts against the piston body 3, thereby expanding the sealing section 81 radially outward.

[0095] Gas storage structure

[0096] The gas storage structure is arranged on the piston body 3, and can specifically adopt the following implementation modes, and certainly other implementation modes can also be adopted.

[0097] Please also read Figure 12 to Figure 14 As a specific embodiment of the piston body 3 of the rotary internal combustion engine provided by the invention, the gas storage structure includes an air storage cavity 41, a ventilation groove 42 and an opening and closing component.

[0098] The air-containing chamber 41 is provided on the piston body 3. The ventilation groove 42 is provided on the piston body 3, and the ventilation groove 42 is provided with an opening on the top surface of the piston body 3 to form an inlet, and the ventilation groove 42 is provided with an opening on the opposite side of the piston body 3 to form an outlet. The opening and closing assembly is provided on the piston body 3, and is used to block or connect the air-containing chamber 41 and the ventilation groove 42. The use of this form of air storage structure can prevent the compressed gas in the air-containing chamber 41 from leaking out, and reduce the sealing requirements for the piston body 3, the rotor 2 and the stator ring 1. More specifically, the air-containing chamber 41 is located inside the piston body 3; the ventilation groove 42 is provided on the opposite side of the piston body 3, and extends all the way to the fitting slope 32, forming an opening on the fitting slope 32.

[0099] The rotor 2 rotates forward in the stator ring 1. When the outer end opening of the piston cavity 21 on the rotor 2 is connected with the air inlet groove 11, the main cam mechanism drives the piston body 3 to suck the mixed gas in the air inlet groove 11 into the compression chamber 22; as the rotor 2 continues to rotate, the outer end opening of the piston cavity 21 on the rotor 2 is connected with the air sealing area 12, and the main cam mechanism drives the piston body 3 to cooperate with the air sealing area 12 to compress the mixed gas in the compression chamber 22. In this process, the opening and closing component connects the air accommodating cavity 41 and the ventilation groove 42. The opening of the ventilation groove 42 on the opposite side of the piston body 3 is closed by the inner wall of the piston cavity 21, and the opening on the top surface of the piston body 3 is connected with the compression chamber 22, so that the compressed mixed gas in the compression chamber 22 is compressed by the ventilation groove 42 on the top surface of the piston body 3 The opening on the piston body 3 passes through the ventilation groove 42 and enters the air-containing chamber 41; when the compression is completed, the opening and closing assembly blocks the air-containing chamber 41 and the ventilation groove 42, so that the compressed mixed gas is stored in the air-containing chamber 41; then the rotor 2 continues to rotate, the outer end opening of the piston chamber 21 on the rotor 2 docks with the working groove 13, and the main cam mechanism drives the piston body 3 to insert into the working groove 13 to separate the working groove 13 into a combustion chamber 134 and a sliding chamber 135. At this time, the opening of the ventilation groove 42 on the top surface of the piston body 3 is closed by the bottom surface of the working groove 13, and the opening of the ventilation groove 42 on the opposite side of the piston body 3 is connected with the combustion chamber 134. At this time, the opening and closing assembly connects the air-containing chamber 41 and the ventilation groove 42, so that the air-containing chamber 41 releases the mixed gas into the combustion chamber 134. More specifically, the driving method of the opening and closing assembly can adopt the driving method in the following embodiment, or other driving methods.

[0100] See also Fig.13 As a specific embodiment of the piston body 3 of the rotary internal combustion engine provided by the invention, the opening and closing assembly includes a ventilation hole 43, a sealing plate 44 and a pry rod 45.

[0101] The ventilation hole 43 is provided on the piston body 3, and is connected between the ventilation groove 42 and the air chamber 41. The sealing plate 44 is slidably provided on the piston body 3, and is used to cut into the ventilation hole 43 to block the ventilation hole 43. The pry bar 45 is rotatably provided on the piston body 3, and one end abuts against the sealing plate 44, and is used to push the sealing plate 44 out of the ventilation hole 43 when the other end is subjected to force.

[0102] The air chamber 41 is located inside the piston body 3. The ventilation groove 42 is arranged on the reverse side of the piston body 3 and extends all the way to the top surface, forming an opening on the top surface. The piston body 3 is provided with a sliding chamber 135 located between the air chamber 41 and the ventilation groove 42, and the ventilation hole 43 is a hole opened on the bottom of the ventilation groove 42, and the ventilation hole 43 passes through the sliding chamber 135 and is connected with the air chamber 41. The sealing plate 44 is slidably arranged in the sliding chamber 135, so that it can cut into the ventilation hole 43 or withdraw from the ventilation hole 43 under the push of the closing follower 471. More specifically, the sliding direction of the sealing plate 44 is parallel to the sliding direction of the piston body 3, which is convenient for closing the follower 471 and opening the follower 461.

[0103] The pry bar 45 is also disposed in the sliding chamber 135 on the piston body 3, and is located on the side of the sealing plate 44 away from the rotating shaft of the rotor 2. The opening follower 461 and the closing follower 471 have the same pushing direction. One end of the pry bar 45 abuts against the sealing plate 44, and the other end is used to abut against the opening follower 461, and is used to push the sealing plate 44 out of the ventilation hole 43 under the push of the opening follower 461.

[0104] By rotating the pry bar 45, the opening follower 461 is realized to push the sealing plate 44 out of the ventilation hole 43 through the pry bar 45. The specific forms of the opening follower 461 and the closing follower 471 can refer to the following embodiments.

[0105] Please also read Figures 12 to 17 As a specific embodiment of the rotor internal combustion engine provided by the invention, when the above-mentioned gas storage structure is adopted, the power unit also includes an opening and closing drive mechanism, and the opening and closing drive mechanism includes an opening cam mechanism and a closing cam mechanism.

[0106] The opening cam mechanism includes an opening cam 46 arranged on the stator ring 1 and an opening follower 461 connected to the opening and closing assembly and rotating with the rotor 2, which is used to drive the opening and closing assembly to connect the air containing chamber 41 and the ventilation groove 42 when the piston body 3 compresses the gas in the piston chamber 21 or when the piston body 3 is inserted into the working groove 13.

[0107] The closing cam mechanism includes a closing cam 47 arranged on the stator ring 1 and a closing follower 471 connected to the opening and closing assembly and rotating with the rotor 2, which is used to drive the opening and closing assembly to block the air containing chamber 41 and the ventilation groove 42 after the piston body 3 completes the compression of the gas in the piston chamber 21 and before the piston body 3 is inserted into the working groove 13.

[0108] More specifically, the opening cam 46 and the closing cam 47 may be located in the accommodating cavity of the rotor 2, and the two may be coaxially fixed on the partition 14 of the stator ring 1. The opening follower 461 is a long straight rod, one end of which is inserted into the piston body 3 and abuts against the pry bar 45, and the other end abuts against the contour of the opening cam 46. The opening follower 461 rotates with the rotor 2, and the ups and downs of the rim of the opening cam 46 are used to drive the opening follower 461 to push the pry bar 45, so that the pry bar 45 pushes the sealing plate 44 out of the ventilation hole 43. The closing follower 471 is also a long straight rod, one end of which is inserted into the piston body 3 and abuts against the sealing plate 44, and the other end abuts against the contour of the closing cam 47. The opening follower 461 rotates with the rotor 2, and the ups and downs of the rim of the closing cam 47 are used to drive the opening follower 461 to push the sealing plate 44 into the ventilation hole 43.

[0109] Please also read Fig.12 and Fig.13 As a specific embodiment of the rotor internal combustion engine provided by the invention, a guide seat 27 is further provided on the rotor 2, and an opening guide hole 272 is provided on the guide seat 27 for slidingly passing through the opening follower 461. This arrangement enables the opening follower 461 to pass through the opening guide hole 272 and rotate with the rotor 2, thereby improving the movement stability of the opening follower 461 and reducing the shaking of the opening follower 461.

[0110] Please also read Fig.12 and Fig.13 As a specific embodiment of the rotor internal combustion engine provided by the invention, a closing guide hole 273 for slidingly penetrating the closing follower 471 is provided on the guide seat 27. This arrangement enables the closing follower 471 to be inserted into the closing guide hole 273 and rotate with the rotor 2, thereby improving the movement stability of the closing follower 471 and reducing the shaking of the closing follower 471. More specifically, the guide seat 27 can be located in the accommodating cavity of the rotor 2 or in the inner end of the piston cavity 21.

[0111] See also Fig.16 As a specific embodiment of the rotor internal combustion engine provided by the invention, the profile of the opening cam 46 includes a compression opening section 462 and a power opening section 463.

[0112] The compression opening section 462 is used to push the opening follower 461 away from the rotating shaft of the rotor 2 to drive the opening and closing assembly to connect the air-containing chamber 41 and the ventilation groove 42 after the rotor 2 rotates to the outer end opening of the piston chamber 21 and docks with the gas sealing area 12 of the stator ring 1. Thus, the gas in the compression chamber 22 can enter the air-containing chamber 41 through the ventilation groove 42 in the compression chamber 22. The working opening section 463 is used to push the opening follower 461 away from the rotating shaft of the rotor 2 to drive the opening and closing assembly to connect the air-containing chamber 41 and the ventilation groove 42 after the rotor 2 rotates to the piston body 3 inserts into the working groove 13. Thus, the compressed gas in the air-containing chamber 41 is released into the combustion chamber 134.

[0113] See also Fig.17 As a specific embodiment of the rotor internal combustion engine provided by the invention, the profile of the closing cam mechanism includes a compression closing section 472. In the positive direction, the compression closing section 472 is bent away from the axis of the main cam 6, the front end of the compression closing section 472 coincides with the rear end of the insertion section 613 or is located behind the rear end of the insertion section 613, and the rear end of the compression closing section 472 coincides with the front end of the compression section 612 or is located before the front end of the compression section 612. The compression closing section 472 is used to push the closing follower 471 away from the rotating shaft of the rotor 2 to drive the opening and closing assembly to block the air accommodating chamber 41 and the air exchange groove 42 after the rotor 2 rotates to accommodate the compressed gas in the air accommodating chamber 41 and before the piston body 3 is inserted into the working groove 13.

[0114] More specifically, after the rotor 2 rotates until the outer end opening of the piston chamber 21 is connected to the gas sealing area 12 of the stator ring 1, the compression opening section 462 drives the opening and closing assembly to connect the gas storage chamber 41 and the ventilation groove 42 by opening the follower 461, so that when the piston body 3 and the gas sealing area 12 cooperate to compress the mixed gas, the compressed mixed gas can be received into the gas storage chamber 41 through the ventilation groove 42 through the opening of the ventilation groove 42 on the top surface of the piston body 3, and then the compression closing section 472 is closed by the closing section 472. The closing follower 471 drives the opening and closing assembly to block the air chamber 41 and the ventilation groove 42, and seals the compressed mixed gas in the air chamber 41. When the rotor 2 rotates to the top of the piston body 3 and inserts into the working groove 13, the working opening section 463 drives the opening and closing assembly to connect the air chamber 41 and the ventilation groove 42 by opening the follower 461, so that the compressed gas in the air chamber 41 can pass through the ventilation groove 42 and be released into the combustion chamber 134 from the opening on the opposite side of the ventilation groove 42.

[0115] On the premise of ensuring that the closing cam mechanism can realize its function, the contours of the other parts of the opening cam 46 except the compression opening section 462 and the working opening section 463 can be set to keep the opening follower 461 pushing the pry bar 45 of the opening and closing assembly, so that the sealing plate 44 is outside the ventilation hole 43, so that during the rotation of the rotor 2, when the outer end opening of the piston chamber 21 is docked with the air inlet groove 11 of the stator ring 1 and other parts of the inner circumference of the stator ring 1, the opening and closing assembly connects the air chamber 41 and the ventilation groove 42, and can also prevent the sealing plate 44 from sliding randomly during the rotation of the rotor 2. In this case, the contours of the other parts of the closing cam 47 except the compression closing section 472 can be set to maintain sliding contact with the closing follower 471 to prevent the closing follower 471 from sliding randomly during the rotation of the rotor 2.

[0116] Main cam mechanism

[0117] Please also read Figure 3 , Figure 6 , Fig.12 , Fig.13 as well as Fig.15 As a specific embodiment of the main cam mechanism of the rotary internal combustion engine provided by the invention, the main cam mechanism includes a main follower 62 and a main cam 6.

[0118] The main follower 62 is used to slide on the rotor 2 and rotate with the rotor 2. One end is used to connect with the piston body 3, and the other end is provided with a cam roller. The main cam 6 is used to connect to the stator ring 1, and is provided with an annular cam groove 61 for accommodating the cam roller. In the positive direction, the cam groove 61 includes an intake section 611, a compression section 612, an insertion section 613 and a recovery section 615 connected in sequence. In the positive direction, the intake section 611 is bent toward the axis of the main cam 6, the compression section 612 is bent away from the axis of the main cam 6, the insertion section 613 is bent away from the axis of the main cam 6, and the recovery section 615 is bent toward the axis of the main cam 6.

[0119] The air intake section 611 is used to push the piston body 3 to slide close to the rotating shaft of the rotor 2 through the master and slave parts 62 after the rotor 2 rotates to the outer end opening of the piston chamber 21 and docks with the air intake groove 11 of the stator ring 1, so that the piston body 3 sucks the gas in the air intake groove 11 into the compression chamber 22. The compression section 612 is used to push the piston body 3 to slide away from the rotating shaft of the rotor 2 through the master and slave parts 62 after the rotor 2 rotates to the outer end opening of the piston chamber 21 and docks with the gas sealing area 12 of the stator ring 1, so that the piston body 3 compresses the gas in the compression chamber 22. The insertion section 613 is used to push the piston body 3 to slide away from the rotating shaft of the rotor 2 through the master and slave parts 62 after the rotor 2 rotates to the outer end opening of the piston chamber 21 and docks with the working groove 13 of the stator ring 1, so that the piston body 3 is inserted into the working groove 13 and divides the working groove 13 into a combustion chamber 134 and a sliding chamber 135. The recovery section 615 is used to push the piston body 3 to slide close to the rotor 2 shaft through the master-slave member 62 before the rotor 2 rotates to the point where the piston body 3 collides with the inner wall of the positive end of the working groove 13, so that the top end of the piston body 3 is retracted into the piston cavity 21.

[0120] More specifically, the main cam 6 is located in the accommodating cavity of the rotor 2, and may be fixed on the partition 14 of the stator ring 1. The air intake section 611, the compression section 612, the insertion section 613 and the recovery section 615 are smoothly connected in sequence to form a ring. The main follower 62 may be a long straight rod, one end of which is fixed to the piston body 3, and the other end passes through the inner end of the piston cavity 21 and forms a cam fit with the main cam 6 through a cam roller. The main follower 62 is driven by the rotor 2 to rotate relative to the main cam 6, so that the main follower 62 drives the piston body 3 to move in the piston cavity 21 under the push of the air intake section 611, the compression section 612, the insertion section 613 and the recovery section 615. The surface of the cam roller and the inner wall of the cam groove 61 are provided with teeth that mesh with each other to prevent the cam roller and the main cam 6 from slipping.

[0121] The intake section 611 is an arc-shaped groove that gradually approaches the rotating shaft of the rotor 2 in the positive direction. The groove wall of the outer ring of the intake section 611 pulls the piston body 3 in the direction close to the rotating shaft of the rotor 2 through the master and slave 62, so that the piston body 3 sucks the mixed gas in the intake groove 11 into the compression chamber 22. The compression section 612 is an arc-shaped groove that gradually moves away from the rotating shaft of the rotor 2 in the positive direction. The groove wall of the inner ring of the intake section 611 pushes the piston body 3 in the direction away from the rotating shaft of the rotor 2 through the master and slave 62, so that the piston body 3 compresses the mixed gas in the compression chamber 22. The insertion section 613 is an arc-shaped groove that gradually moves away from the rotating shaft of the rotor 2 in the positive direction. The groove wall of the inner ring of the insertion section 613 pushes the piston body 3 in the direction away from the rotating shaft of the rotor 2 through the master and slave 62, so that the piston body 3 is inserted into the working groove 13 until the top surface of the piston body 3 fits with the bottom surface of the groove of the working groove 13. The recovery section 615 is an arc-shaped groove that gradually approaches the rotating shaft of the rotor 2 in the positive direction. The groove wall of the outer ring of the recovery section 615 pulls the piston body 3 in the direction close to the rotating shaft of the rotor 2 through the master-slave member 62, so that the top end of the piston body 3 is retracted into the piston cavity 21, avoiding the top end of the piston body 3 from colliding with the inner wall of the positive end of the working groove 13.

[0122] See also Fig.13 As a specific embodiment of the main cam mechanism of the rotor internal combustion engine provided by the invention, the main cam 6 has two, and the sides of the two main cams 6 provided with the cam groove 61 are arranged opposite to each other and a movable gap is formed in the middle for accommodating the main follower 62. The two main cams 6 are arranged in a mirror image, and a movable gap is formed in the middle at a certain distance. Two coaxial cam rollers are provided on both sides of one end of the main follower 62, and the main follower 62 is inserted into the movable gap. The two cam rollers are respectively embedded in the cam grooves 61 of the two main cams 6 to prevent the main follower 62 from separating from the main cam 6.

[0123] Please also read Figure 3 , Figure 6 , Fig.12 , Fig.13 as well as Fig.15 As a specific embodiment of the main cam mechanism of the rotor internal combustion engine provided by the invention, the cam groove 61 also includes a work holding section 614 connected between the insertion section 613 and the recovery section 615. The work holding section 614 is in an arc shape concentric with the main cam 6. The work holding section 614 is used to keep the piston body 3 stationary relative to the piston chamber 21 through the main follower 62 after the rotor 2 rotates until the piston body 3 is inserted into the work groove 13.

[0124] More specifically, the working holding section 614 is used to keep the piston body 3 stationary relative to the piston cavity 21 through the master-slave member 62 after the rotor 2 rotates until the top surface of the piston body 3 fits with the bottom surface of the working groove 13, and to keep the top surface of the piston body 3 fit with the bottom surface of the working groove 13. The working holding section 614 can be an arc-shaped groove with its center located on the axis of the rotor 2.

[0125] More specifically, the insertion section 613 is configured to push the piston body 3 to slide along the wall surface at the opposite end of the working groove 13 through the master-slave member 62, and the fitting slope 32 of the piston body 3 fits and slides along the wall surface at the opposite end of the working groove 13.

[0126] Ignition timing mechanism 7

[0127] Please also read Figure 3 , Figure 6 , Fig.12 , Fig.13 as well as Fig.15 As a specific embodiment of the ignition timing mechanism 7 of the rotor internal combustion engine provided by the invention, the power unit also includes an ignition timing mechanism 7, and the ignition timing mechanism 7 includes a normally closed base 71, a normally closed brush 73, a timing base 74 and a timing brush 75.

[0128] The normally closed base 71 is coaxially arranged on the rotor 2, and a long closed contact ring 72 is provided on the outer circumference. The normally closed brush 73 is connected to the stator ring 1, and is in sliding contact with the long closed contact ring and is electrically connected. The timing base 74 is coaxially arranged on the rotor 2, and an ignition contact 76 is provided on the outer circumference, and the ignition contact 76 is electrically connected to the long closed contact ring 72. The timing brush 75 is connected to the stator ring 1, and is in sliding contact with the outer circumference of the timing base 74, and is used to be electrically connected to the ignition contact 76. The position of the ignition contact 76 in the circumferential direction of the timing base 74 is set so that the timing brush 75 contacts the ignition contact 76 after the piston body 3 is inserted into the working groove 13 and the gas storage structure releases the compressed gas into the combustion chamber 134.

[0129] When in use, the timing brush 75 and the normally closed brush 73 can be electrically connected to the controller of the ignition component 131 through a wire. The controller of the ignition component 131 determines whether the timing brush 75 and the normally closed brush 73 are conductive to control the ignition timing of the ignition component 131.

[0130] Specifically, the ignition contact 76 may be a plurality of ignition contacts 76 distributed along the circumference of the timing base 74, and each ignition contact 76 is electrically connected to the long closed contact ring 72. A conductor is provided in the normally closed base 71 and the timing base 74, and the conductor connects the ignition contact 76 and the long closed contact ring 72 together. When the rotor 2 rotates until the piston body 3 is inserted into the working groove 13 and the gas storage structure releases the compressed gas into the combustion chamber 134, the timing brush 75 contacts the ignition contact 76, and the controller of the ignition assembly 131 determines that the timing brush 75 is connected to the normally closed brush 73 through the ignition contact 76 and the long closed contact ring 72, and controls the ignition assembly 131 to ignite the combustible gas in the combustion chamber 134.

[0131] A vehicle includes the above-mentioned rotor internal combustion engine. Compared with the prior art, the vehicle in the embodiment of the present invention adopts the above-mentioned rotor internal combustion engine. The impact force generated by the combustion of the combustible gas in the combustion chamber 134 directly acts on the reverse side of the piston body 3 to drive the rotor 2 to rotate, eliminating the conversion of the crank-connecting rod mechanism, and generating a greater torque on the rotor 2, thereby achieving a higher energy conversion efficiency.

[0132] An aircraft includes the above-mentioned rotor internal combustion engine. Compared with the prior art, the aircraft in the embodiment of the present invention adopts the above-mentioned rotor internal combustion engine. The impact force generated by the combustion of the combustible gas in the combustion chamber 134 directly acts on the reverse side of the piston body 3 to drive the rotor 2 to rotate, eliminating the conversion of the crank-connecting rod mechanism. The torque generated on the rotor 2 is greater and the energy conversion efficiency is higher.

[0133] A ship includes the above-mentioned rotor internal combustion engine. Compared with the prior art, the ship of the embodiment of the present invention adopts the above-mentioned rotor internal combustion engine. The impact force generated by the combustion of the combustible gas in the combustion chamber 134 directly acts on the reverse side of the piston body 3 to drive the rotor 2 to rotate, eliminating the conversion of the crank-connecting rod mechanism, and generating a larger torque on the rotor 2, and the energy conversion efficiency is higher.

[0134] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A piston, characterized in that: include: The piston body is provided with an air-containing cavity and an air-exchange groove, and the air-exchange groove is provided with openings on the top surface and the opposite side surface of the piston body; as well as An opening and closing assembly, provided on the piston body, for blocking or connecting the air containing cavity and the air exchange groove; The opening and closing assembly comprises: A ventilation hole is provided on the piston body and communicates between the ventilation groove and the air containing cavity; a sealing plate, slidably disposed on the piston body, and used for cutting into the ventilation hole to block the ventilation hole; and A pry bar, rotatably disposed on the piston body, one end of which abuts against the sealing plate, and is used to push the sealing plate out of the ventilation hole when the other end is subjected to force; A pressure-bearing surface parallel to the axis of the piston is provided on one side of the piston body; The top surface of the piston body includes a main area and a fitting slope located on the opposite side of the main area, and the fitting slope is curved in a direction facing away from the main area; The opening of the ventilation groove on the opposite side surface of the piston body extends to the fitting slope surface to form the opening of the ventilation groove on the top surface of the piston body.

2. The piston according to claim 1, characterized in that The main area is an outwardly convex arc-shaped curved surface.

3. A rotary internal combustion engine, characterized in that: Comprising the piston according to any one of claims 1 to 2.

4. A vehicle, characterized in that: It comprises the rotor internal combustion engine as claimed in claim 3.

5. An aircraft, characterized in that: It comprises the rotor internal combustion engine as claimed in claim 3.

6. A ship, characterized in that: It comprises the rotor internal combustion engine as claimed in claim 3.

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