CN110185549B

CN110185549B - Cylinder, rotor internal combustion engine, vehicle, aircraft and ship

Info

Publication number: CN110185549B
Application number: CN201910594166.3A
Authority: CN
Inventors: 吕国良
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2023-11-07
Anticipated expiration: 2039-07-03
Also published as: CN110185549A

Abstract

The invention provides a cylinder body, a rotor internal combustion engine, a vehicle, an aircraft and a ship, and belongs to the field of internal combustion engines. A cylinder includes at least one stator ring. At least one circulation group is arranged on the inner circumferential surface of the stator ring, and each circulation group comprises an air inlet groove, an air sealing area and a working groove which are sequentially arranged on the inner circumferential surface of the stator ring along the forward direction. The air inlet groove is provided with an air inlet. An exhaust port is arranged at one forward end of the acting groove, and an ignition component is arranged in the other reverse end of the acting groove. And the part of the inner peripheral surface of the stator ring, which is positioned between the air inlet groove and the acting groove, forms the air seal area. The rotor internal combustion engine, the vehicle, the aircraft and the ship adopt the cylinder body. The rotor internal combustion engine manufactured by the cylinder body provided by the embodiment of the invention does not need the process of converting the linear motion of the piston into the rotary motion of the crankshaft, and improves the output torque and the energy conversion efficiency.

Description

Cylinder, rotor internal combustion engine, vehicle, aircraft and ship

Technical Field

The invention belongs to the technical field of internal combustion engines, and particularly relates to a cylinder body, a rotor internal combustion engine, a vehicle, an aircraft and a ship.

Background

The most common internal combustion engine is a reciprocating piston type internal combustion engine, fuel and air are mixed and combusted in a cylinder, the released heat energy enables high-temperature and high-pressure fuel gas to be generated in the cylinder, the fuel gas expands to push a piston to apply work, and mechanical energy is output through a crank-link mechanism or other mechanisms to drive driven machinery to work. The top of the cylinder of the existing reciprocating piston type internal combustion engine is a combustion chamber, the piston is pushed to move along a straight line through the combustion of combustible gas in the combustion chamber, then the straight line motion of the piston is converted into the rotation of a crankshaft through a crank-connecting rod mechanism, and the output torque of the reciprocating piston type internal combustion engine is smaller and the energy conversion is lower due to the conversion process.

Disclosure of Invention

The invention aims to provide a cylinder body, which solves the technical problems that in a reciprocating piston type internal combustion engine in the prior art, the combustion of combustible gas of the cylinder pushes a piston to move along a straight line, so that the reciprocating piston type internal combustion engine needs to convert the straight line movement of the piston into the rotation movement of a crankshaft, and the reciprocating piston type internal combustion engine has smaller output torque and lower energy conversion efficiency.

In order to achieve the above purpose, the invention adopts the following technical scheme: providing a cylinder comprising at least one stator ring;

At least one circulation group is arranged on the inner circumferential surface of the stator ring, and each circulation group comprises an air inlet groove, an air seal area and a working groove which are sequentially arranged on the inner circumferential surface of the stator ring along the forward direction;

the air inlet groove is provided with an air inlet;

an exhaust port is arranged at one forward end of the acting groove, and an ignition component is arranged in one reverse end of the acting groove;

and the part of the inner peripheral surface of the stator ring, which is positioned between the air inlet groove and the acting groove, forms the air seal area.

Further, a plurality of circulating groups are sequentially arranged on the inner peripheral surface of the same stator ring along the circumferential direction.

Further, the stator ring is provided with a baffle plate for closing the end face of the inner cavity of the stator ring.

Further, the cylinder comprises at least two coaxially arranged stator rings; the two adjacent stator rings are oppositely arranged on the partition plates, an oiling gap is formed in the middle of the two adjacent stator rings, and the partition plates are provided with lubricating oil holes which are communicated with the oiling gap and the inner cavity of the stator rings.

Further, the inner circumferential surface of the stator ring has a cylindrical shape.

Further, the bottom of the acting groove is an arc curved surface.

The cylinder body provided by the invention has the beneficial effects that: compared with the prior art, when the cylinder body is applied to the rotary engine, firstly, the piston and the rotor suck combustible gas from the air inlet groove; then the piston and the rotor are matched with the gas seal area to compress the combustible gas; then the working groove is divided into a combustion chamber and a sliding chamber by the working groove in the piston insertion process, and compressed combustible gas is released into the combustion chamber; and finally, the ignition component ignites combustible gas in the combustion chamber, and the combustible gas pushes the piston to rotate along the circumferential direction of the stator ring so as to drive the rotor to rotate. The whole rotor engine does not need to convert the linear motion of the piston into the rotary motion of the crankshaft, and improves the output torque and the energy conversion efficiency.

The invention also provides a rotor internal combustion engine comprising the cylinder body. The rotor internal combustion engine provided by the invention has the beneficial effects that 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, the conversion of a crank-link mechanism is avoided, the torque generated on the rotor is larger, and the energy conversion efficiency is higher.

The invention also provides a vehicle comprising the rotor internal combustion engine. The beneficial effects of the vehicle provided by the invention are the same as those of the rotor internal combustion engine, and are not repeated here.

The invention also provides an aircraft comprising the rotor internal combustion engine. The beneficial effects of the aircraft provided by the invention are the same as those of the rotor internal combustion engine, and are not repeated here.

The invention also provides a ship comprising the rotor internal combustion engine. The beneficial effects of the ship provided by the invention are the same as those of the rotor internal combustion engine, and are not repeated here.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a front view of a rotary internal combustion engine according to an embodiment of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 1, with the direction of the arrow shown as being forward;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is an enlarged view at C in FIG. 3;

FIG. 6 is a cross-sectional view of the rotary internal combustion engine of FIG. 3 after the rotor has been rotated in a forward direction, with the piston inserted into the working channel;

FIG. 7 is an enlarged view of FIG. 6 at D;

FIG. 8 is a side view of the piston of FIG. 3;

FIG. 9 is a cross-sectional view of the stator ring of FIG. 3, with the direction of the arrows in the drawing being in the forward direction;

FIG. 10 is an assembly view of the rotor and piston of FIG. 3;

FIG. 11 is a side view of FIG. 10;

FIG. 12 is a cross-sectional view of a rotary internal combustion engine according to another embodiment of the present invention, with the direction of the arrow shown as forward;

FIG. 13 is a block diagram of the main cam, opening follower, closing cam, closing follower and piston of FIG. 12;

FIG. 14 is a cross-sectional view of the piston of FIG. 13;

FIG. 15 is a side view of the main cam of FIG. 13, with the direction of the arrow shown in the forward direction;

FIG. 16 is a side view of the opening cam of FIG. 13 with the direction of the arrow shown in the forward direction;

FIG. 17 is a side view of the closure cam of FIG. 13 with the direction of the arrow shown in the forward direction;

fig. 18 is a schematic structural view of a piston ring in a rotary internal combustion engine according to an embodiment of the present invention;

Fig. 19 is an enlarged view at E in fig. 18;

fig. 20 is a side view of fig. 19.

Wherein, each reference sign in the figure:

1-a stator ring; 11-an air inlet groove; 111-air inlet; 12-an air sealing area; 13, a working groove; 131-an ignition assembly; 132-exhaust port; 134-combustion chamber; 135-slip chamber; 14-a separator; 15-oiling gap; 16-a lubricating oil hole; 2-rotor; 21-a piston chamber; 22-compression chambers; 23-an abutting surface; 25-a circumferential sealing ring; 26-axial sealing strips; 27-a guide seat; 271-main guide hole; 272-opening the guide hole; 273-closing the guide hole; 3-piston; 31-a main area; 32-fitting the slope; 33-bearing surface; 41-a gas-accommodating cavity; 42-a ventilation groove; 43-ventilation holes; 44-sealing plates; 45-prying bar; 46-opening a cam; 461-opening the follower; 462-compressing the open section; 463-work opening section; 47-closing the cam; 471-closing follower; 472-compression closing section; 58-open slot; 6-a main cam; 61-cam groove; 611-an air inlet section; 612-compressing the segments; 613-insert section; 614-work holding section; 615-recovery section; 62-a primary follower; 7-an ignition timing mechanism; 71-a normally closed base; 72-long closed contact ring; 73-normally closed brushes; 74-timing base; 75-timing brushes; 76-ignition contacts; 8-piston rings; 81-sealing sections; 811-a clamping groove; 82-axial limit plugs; 83-axial limit slots; 84-radial limit plugs; 85-radial limit slots; 86-elastic strips.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Referring to fig. 1, 2, 3, 6, 9 and 12, a cylinder according to an embodiment of the present invention will be described. A cylinder comprises at least one stator ring 1. At least one circulation group is arranged on the inner peripheral surface of the stator ring 1, and each circulation group comprises an air inlet groove 11, an air sealing area 12 and a working groove 13 which are sequentially arranged on the inner peripheral surface of the stator ring 1 along the forward direction. The air intake groove 11 is provided with an air intake 111. The working tank 13 has an exhaust port 132 at one end in the forward direction and an ignition assembly 131 at the opposite end. The part of the inner peripheral surface of the stator ring 1, which is positioned between the air inlet groove 11 and the working groove 13, forms an air seal area 12.

Compared with the prior art, when the cylinder body is applied to the rotor 2 engine, firstly, the piston 3 and the rotor 2 suck combustible gas from the air inlet groove 11; the piston 3 and the rotor 2 are matched with the gas seal area 12 to compress the combustible gas; after that, the piston 3 is inserted into the working groove 13 to divide the working groove 13 into a combustion chamber 134 and a sliding chamber 135, and the compressed combustible gas is released into the combustion chamber 134; finally, the ignition assembly 131 ignites the combustible gas in the combustion chamber 134, and the combustible gas pushes the piston 3 to rotate along the circumferential direction of the stator ring 1, so as to drive the rotor 2 to rotate. The whole rotor 2 engine does not need the process of converting the linear motion of the piston 3 into the rotary motion of the crankshaft, and the output torque and the energy conversion efficiency are improved.

The cylinder block according to the embodiment of the present invention will be described with reference to a rotary internal combustion engine.

Referring to fig. 1 to 20 together, a description will be given of a rotary internal combustion engine according to an embodiment of the present invention. The rotary internal combustion engine includes at least one power unit. Each power unit comprises a stator ring 1, a rotor 2, a piston 3 and a main cam mechanism.

The two directions in the circumferential direction of the stator ring 1 are forward and reverse respectively, at least one circulation group is arranged on the inner circumferential surface, each circulation group comprises an air inlet groove 11, an air seal area 12 and a working groove 13 which are sequentially arranged on the inner circumferential surface of the stator ring 1 along the forward direction, the air inlet groove 11 is provided with an air inlet 111, one forward end of the working groove 13 is provided with an air outlet 132, and the other reverse end of the working groove 13 is internally provided with an ignition component 131.

The rotor 2 is arranged in the stator ring 1 in a forward rotation way, the outer peripheral surface is in sliding seal with the inner peripheral surface of the stator ring 1, a piston cavity 21 is arranged along the radial direction, and the outer end opening of the piston cavity 21 is used for being respectively in butt joint with the air inlet groove 11, the air sealing area 12 and the acting groove 13 in sequence in the rotation process of the rotor 2.

The piston 3 is slidably disposed in the piston chamber 21, and the top surface is adapted to form a compression chamber 22 with the inner wall of the piston chamber 21.

The main cam mechanism comprises a main cam 6 arranged on the stator ring 1 and a main driven member 62 connected with the piston 3 and rotating along with the rotor 2, wherein the main driven member 62 and the main cam 6 form a cam mechanism for driving the piston 3 in the rotating process of the rotor 2, so that the piston 3 sequentially sucks the gas in the air inlet groove 11 into the compression chamber 22, compresses the gas in the compression chamber 22 in cooperation with the air seal area 12, inserts into the working groove 13 to divide the working groove 13 into a combustion chamber 134 containing the ignition assembly 131, a sliding chamber 135 for the piston 3 to positively slide and communicating with the exhaust port 132, and withdraws from the working groove 13.

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

When the air-fuel compressor is in use, mixed gas of fuel and air is introduced into the air inlet groove 11 from the air inlet 111, the rotor 2 rotates positively in the stator ring 1, and when the outer end opening of the piston cavity 21 on the rotor 2 is in butt joint with the air inlet groove 11, the main cam mechanism drives the piston 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 is in butt joint with the gas seal area 12, the main cam mechanism drives the piston 3 to be matched with the gas seal area 12 to compress the mixed gas in the compression chamber 22, and in the process, the gas storage structure accommodates the compressed mixed gas in the compression chamber 22; the rotor 2 continues to rotate, the outer end opening of the piston cavity 21 is in butt joint with the working groove 13, the main cam mechanism drives the piston 3 to be inserted into the working groove 13 to divide the working groove 13 into a combustion chamber 134 and a sliding chamber 135, at the moment, the gas storage structure releases compressed mixed gas in the combustion chamber 134, then the mixed gas in the combustion chamber 134 is ignited by the ignition assembly 131, the impact generated by the combustion of the mixed gas acts on the reverse side surface of the piston 3, and the piston 3 is pushed to rotate forward along the sliding chamber 135, so that the rotor 2 is driven to rotate forward, and a cycle is completed. During the process of sliding the piston 3 along the working groove 13, the piston 3 can just push the combustion waste gas remained in the previous cycle in the working groove 13 to be discharged from the exhaust port 132. The rotor 2 then continues to rotate and the outer end opening of the piston chamber 21 again interfaces with the inlet channel 11, starting the next cycle.

According to the rotor internal combustion engine disclosed by the embodiment of the invention, the impact force generated by compressed gas combustion directly acts on the reverse side surface of the piston 3 to drive the rotor 2 to rotate, so that the conversion of a crank-link mechanism is avoided, the torque generated on the rotor 2 is larger, and the energy conversion efficiency is higher.

Specific embodiments of relevant components in a rotary internal combustion engine are given below.

Stator ring 1

Referring to fig. 1 to 7 and fig. 9, as a specific embodiment of a stator ring 1 of a rotor internal combustion engine provided by the invention, two directions in a circumferential direction of the stator ring 1 are forward and reverse directions, respectively, at least one circulation group is provided on an inner circumferential surface, and each circulation group includes an air inlet groove 11, an air seal area 12 and a working groove 13 sequentially provided on the inner circumferential surface of the stator ring 1 in the forward direction.

The air intake groove 11 is provided with an air intake port 111 and is adapted to communicate with an outer end opening of the piston chamber 21 on the rotor 2. The part of the inner peripheral surface of the stator ring 1, which is positioned between the air inlet groove 11 and the working groove 13, forms an air sealing area 12, and the air sealing area 12 is used for sealing the outer end opening of the piston cavity 21. The working groove 13 is provided with an exhaust port 132 at one end in the forward direction and an ignition assembly 131 at the other end, and the working groove 13 is used for being inserted by the piston 3 in the piston cavity 21 and is divided by the piston 3 into a combustion chamber 134 containing the ignition assembly 131 and a sliding chamber 135 for the piston 3 to slide forward and be communicated with the exhaust port 132.

More specifically, the inner peripheral surface of the stator ring 1 has a cylindrical shape, and a water jacket may be provided in the wall body for cooling. The air inlet groove 11 is an arc-shaped strip groove arranged along the circumferential direction of the inner circumferential surface of the stator ring 1, and the width of the air inlet groove 11 in the axial direction of the stator ring 1 can be larger than, equal to or smaller than the width of the outer end opening of the piston cavity 21 in the axial direction of the stator ring 1, and only the requirement that the outer end opening of the piston cavity 21 can be in butt joint with the air inlet groove 11 in the rotation process of the rotor 2 is met. The bottom surface of the working groove 13 is matched with the top surface of the piston 3, so that after the piston 3 is inserted into the air inlet groove 11, the top surface of the piston 3 can be matched with the bottom surface of the working groove 13, and the combustion chamber 134 is sealed.

The working groove 13 is an arc-shaped long strip groove arranged along the circumferential direction of the inner circumferential surface 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 3 in the axial direction of the stator ring 1, so that the piston 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 sealed by the piston 3 into a combustion chamber 134 for combustion of mixed gas, and the forward end of the working groove 13 forms a sliding chamber 135 for the piston 3 to slide in the forward direction in the working groove 13. The end surface of the opposite end of the working groove 13 is an arc curved surface, so that the piston 3 can be gradually inserted into the working groove 13 along the arc curved surface, a groove is arranged on the end surface of the opposite end of the working groove 13, and the ignition component 131 can be a spark plug arranged in the groove. An exhaust port 132 communicated with the outside of the stator ring 1 is arranged on the end surface of the forward end of the working groove 13, and is used for discharging combustion exhaust gas.

The gas seal area 12 is an area of the inner peripheral surface of the stator ring 1 between the air inlet groove 11 and the working groove 13, and is used for keeping the outer end opening of the piston cavity 21 airtight, so that the mixed gas in the compression chamber 22 can be compressed when the piston 3 slides in the piston cavity 21 towards the gas seal area 12.

Referring to fig. 9, as a specific embodiment of a stator ring 1 of a rotary internal combustion engine provided by the invention, a plurality of groups of circulating groups are sequentially arranged on the inner peripheral surface of the same stator ring 1 along the circumferential direction. By this arrangement, the rotor 2 rotates one revolution in the stator ring 1, and the pistons 3 are sequentially pushed in a plurality of circulation groups, thereby improving the power of the rotary internal combustion engine. In this case, only one piston chamber 21 may be provided on the rotor 2, and one piston 3 in the piston chamber 21 sequentially performs the cycles of suction, compression, and ignition work in each cycle group. The rotor 2 may also be provided with a plurality of piston chambers 21, each piston chamber 21 having a piston 3 mounted therein, the rotor 2 being jointly pushed by different pistons 3 operating in different sets of cycles.

Referring to fig. 1, 2 and 9, as a specific embodiment of a stator ring 1 of a rotary internal combustion engine provided by the invention, the stator ring 1 is provided with a partition plate 14 for closing an end face of an inner cavity of the stator ring 1.

Specifically, the two sides of the stator ring 1 may be provided with a partition plate 14 to close the two 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 is fixedly connected to the stator ring 1 by being fixed to the partition 14. The partition 14 is provided with a shaft hole for passing the rotation shaft of the rotor 2 out of the stator ring 1.

Referring to fig. 1, as a specific embodiment of a stator ring 1 of a rotary internal combustion engine provided by the invention, a cylinder of the rotary internal combustion engine includes at least two stator rings 1 coaxially disposed; the partition plates 14 of two adjacent stator rings 1 are oppositely arranged and form an oiling gap 15 in the middle, and the partition plates 14 are provided with lubricating oil holes 16 which are communicated with the oiling gap 15 and the inner cavity of the stator ring 1.

A rotary internal combustion engine may comprise a plurality of power units coaxially arranged, wherein stator rings 1 of the power units are fixedly connected with each other to form a cylinder body, and rotors 2 are coaxially and fixedly connected with each other to form a rotor group. The partition plates 14 of two adjacent power units are arranged at a certain distance to form a closed oiling gap 15, and the positions of the lubricating oil holes 16 on the partition plates 14 can be arranged to face each component in the inner cavity of the stator ring 1, such as the piston 3, the main cam mechanism and the like, and the components in the inner cavity of the stator ring 1 are lubricated by filling the oiling gap 15 with engine oil, and the engine oil enters the inner cavity of the stator ring 1 from the lubricating oil holes 16.

Rotor 2

Referring to fig. 3, 6, 10, 11 and 12, as a specific embodiment of a rotor 2 of a rotary internal combustion engine provided by the present invention, the rotor 2 is provided in the stator ring 1 for forward rotation and has an outer peripheral surface slidably sealed with an inner peripheral surface of the stator ring 1. The rotor 2 is provided with a piston cavity 21 arranged along the radial direction, the outer end of the piston cavity 21 forms an opening on the outer peripheral surface of the rotor 2, and the outer end opening of the piston cavity 21 is used for being respectively in butt joint with the air inlet groove 11, the air seal area 12 and the acting groove 13 of the stator ring 1 in sequence in the rotating process of the rotor 2.

Specifically, the outer peripheral surface of the rotor 2 is cylindrical, 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 peripheral surface of the rotor 2 and the inner peripheral surface of the stator ring 1 form dynamic seal connection for sealing the air inlet groove 11 and the working groove 13.

Referring to fig. 3, 6, 10 and 12, as a specific embodiment of the rotor 2 of the internal combustion engine, a receiving cavity for receiving the main cam mechanism is provided in the middle of the rotor 2. So that the main cam mechanism and the like can be provided in the accommodation chamber, reducing the volume of the rotor 2 engine of the present embodiment. The rear end of the piston chamber 21 communicates with the accommodation chamber, and the main follower 62 extends into the piston chamber 21 from the rear end opening of the piston chamber 21 to be connected with the piston 3. More specifically, the accommodation chambers may be provided at the center of the rotor 2, with which the inner ends of the respective piston chambers 21 communicate.

Referring to fig. 12 and 13 together, as a specific embodiment of the rotor 2 of the rotor internal combustion engine provided by the invention, a guide seat 27 is further provided on the rotor 2, and a main guide hole 271 for sliding through the main driving member 62 is provided on the guide seat 27. This arrangement allows the main follower 62 to be inserted into the main guide hole 271 to follow the rotation of the rotor 2, thereby improving the stability of the movement of the main follower 62 and reducing the shake of the main follower 62. More specifically, the guide shoes 27 may be located within the receiving chamber of the rotor 2 or in the inner end of the piston chamber 21.

Referring to fig. 7, as a specific embodiment of the rotor 2 of the internal combustion engine, the inner wall of the opposite side of the piston chamber 21 is provided with a contact surface 23 parallel to the axis of the rotor 2 and the axis of the piston chamber 21. The abutment surface 23 is adapted to slidingly seal with the bearing surface 33 of the piston 3. More specifically, the outer wall of the opposite side of the piston 3 is provided with a pressure-bearing surface 33 for receiving the impact in the combustion chamber 134, and the pressure-bearing surface 33 may be planar, and the abutment surface 23 of the corresponding piston chamber 21 is also planar.

Referring to fig. 11, as a specific embodiment of the rotor 2 of the internal combustion engine provided by the invention, at least two circumferential sealing rings 25 are circumferentially arranged on the outer peripheral surface of the rotor 2, and the at least two circumferential sealing rings 25 are respectively located at two sides of the outer end opening of the piston cavity 21 in the axial direction of the rotor 2.

Two circumferential seal grooves are circumferentially arranged on the outer circumferential surface of the rotor 2, and the two circumferential seal grooves are respectively positioned on two sides of the outer end opening of the piston cavity 21 in the axial direction of the rotor 2. Two circumferential seal rings 25 are mounted in the two circumferential seal grooves, respectively. The sealing performance between the outer peripheral surface of the rotor 2 and the inner peripheral surface of the stator ring 1 can be improved by the circumferential seal ring 25. The two circumferential seal rings 25 are respectively located on both sides of the outer end opening of the piston chamber 21 in the axial direction of the rotor 2, and can improve the sealability of the outer end opening of the piston chamber 21 on both sides of the rotor 2 in the axial direction.

Referring to fig. 11, as a specific embodiment of the rotor 2 of the internal combustion engine provided by the invention, at least two axial sealing strips 26 are axially disposed on the outer peripheral surface of the rotor 2, and the at least two axial sealing strips 26 are respectively located at two sides of the outer end opening of the piston cavity 21 in the circumferential direction of the rotor 2.

At least two axial sealing grooves are axially formed in the outer peripheral surface of the rotor 2, and are respectively located at two sides of the outer end opening of the piston cavity 21 in the circumferential direction of the rotor 2, and are used for installing the axial sealing strips 26. By improving the sealing property between the outer peripheral surface of the rotor 2 and the inner peripheral surface of the stator ring 1 with the axial seal bars 26, at least two axial seal bars 26 are respectively located on both sides of the outer end opening of the piston chamber 21 in the circumferential direction of the rotor 2, and the sealing property of sealing both sides of the outer end opening of the piston chamber 21 in the circumferential direction of the rotor 2 can be improved.

More specifically, the cross section of the piston chamber 21 is rectangular, semicircular or elliptical. The shape of the piston chamber 21 may be any shape that matches the shape of the piston 3.

More specifically, the rotor 2 has a plurality of piston chambers 21 distributed in the circumferential direction. A plurality of radially arranged piston cavities 21 are circumferentially distributed on the same rotor 2, and a piston 3 can be arranged 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 3 in each piston cavity 21 sequentially circulates in the circulation group to do work, so that the working strength of each piston 3 can be reduced, the service life of the piston 3 can be prolonged, and the power of the rotor 2 engine in this embodiment can also be increased. The inner peripheral surface of the stator ring 1 can be provided with a plurality of circulation groups, and the piston 3 in each piston cavity 21 sequentially circularly works in each circulation group, so that the torque and the power of the rotor 2 engine of the embodiment can be greatly increased.

Referring to fig. 10, as a specific embodiment of a rotor 2 of a rotor internal combustion engine provided by the invention, a plurality of piston cavities 21 are distributed along the circumferential direction of the rotor 2, each piston cavity 21 is disposed along the radial direction of the rotor 2, and the plurality of piston cavities 21 are radially arranged on the rotor 2 with the rotation axis of the rotor 2 as the center.

Piston 3

The cross section of the piston 3 is rectangular, semicircular or elliptical. The shape of the piston chamber 21 may be any shape that matches the shape of the piston 3, and if the cross section of the piston 3 is semicircular, the planar side faces thereof form the pressure-bearing faces 33. If the cross section of the piston 3 is elliptical, the side surface with the smaller curvature forms the pressure-bearing surface 33.

Referring to fig. 5, 7 and 14, as a specific embodiment of the piston 3 of the rotary internal combustion engine provided by the invention, one side of the piston 3 is provided with a pressure bearing surface 33 parallel to the axis of the piston 3. The pressure-bearing surface 33 is used to bear the impact of the combustion of the combustible gas in the combustion chamber 134. More specifically, the bearing surfaces 33 are planar and the abutment surfaces 23 of the respective piston chambers 21 are also planar.

Referring to fig. 3 to 8 and fig. 14 together, as a specific embodiment of the piston 3 of the rotary internal combustion engine provided by the invention, the top surface of the piston 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 tilted away from the main area 31. The main region 31 of the top surface of the piston 3 is opposite the bottom surface of the work groove 13. The piston 3 is pushed by the main follower 62 of the main cam mechanism, the joint slope 32 is jointed with the wall surface at the opposite end of the working groove 13 and slides along the wall surface at the opposite end of the working groove 13 until the top surface of the piston 3 is jointed and sealed with the bottom surface of the working groove 13, so that the abrasion of the opposite side of the piston 3 can be reduced, and the resistance is reduced. The fitting slope 32 is matched with the wall surface of the opposite end of the working groove 13 of the stator ring 1, and 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.

Referring to fig. 7, as a specific embodiment of the piston 3 of the rotary internal combustion engine provided by the invention, the main area 31 of the top surface of the piston 3 is a convex arc-shaped curved surface. After the piston 3 is inserted into the intake groove 11, the main region 31 of the top surface of the piston 3 can be bonded to 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 is kept sealed. The bottom surface of the working groove 13 is a concave arc curved surface, and the main area 31 is matched with the bottom surface of the working groove 13.

The periphery of the piston 3 is provided with a piston ring groove, and a piston ring 8 is arranged in the piston ring groove. Referring to fig. 18 to 20 together, as an embodiment of a piston ring 8 for a rotary internal combustion engine provided by the invention, the piston ring 8 includes at least two seal segments 81; an axial limiting plug 82 is arranged on the end face of the first end of each sealing section 81, and a radial limiting plug 84 is arranged on the top of the axial limiting plug 82; an axial limiting slot 83 for axially limiting the axial limiting plug 82 of the adjacent sealing section 81 is arranged on the end surface of the second end of the sealing section 81, and a radial limiting slot 85 for radially limiting the radial limiting plug 84 of the adjacent sealing section 81 is arranged at the bottom of the axial limiting slot 83; the seal segment 81 is further provided with an elastic member for radially outwardly expanding the seal segment 81.

During the use, encircle a plurality of seal segments 81 at piston 3 inslot concatenation piston ring 8, prop up seal segment 81 radially outwards through elastic component, make each seal segment 81 compress tightly and form sealedly on the inner wall of piston chamber 21, and adjacent two seal segments 81, insert in the spacing slot 83 of axial through the spacing plug 82 of axial, make adjacent two seal segments 81 in axial relatively fixed, avoid axial dislocation to lead to revealing, insert in the spacing slot 85 of radial through radial spacing plug 84, make adjacent two seal segments 81 in radial relatively fixed, the pressure of the elastic component of adjacent two seal segments 81 can be transmitted to adjacent two seal segments 81, make adjacent two seal segments 81 more even to the pressure of piston chamber 21 inner wall, the piston 3 periphery is more even with the seal of piston chamber 21.

Referring to fig. 18, as an embodiment of the piston ring 8 of the rotary internal combustion engine provided by the invention, the seal section 81 is in a zigzag shape. So that the sealing segments 81 can be spliced into a polygonal shaped piston ring 8. More specifically, the seal segment 81 is angled at 90 degrees. Each piston ring 8 comprises four sealing segments 81, the four sealing segments 81 being rectangular around and connected to the ends of adjacent sealing segments 81.

Referring to fig. 20, as a specific embodiment of a piston ring 8 of a rotary internal combustion engine provided by the invention, in an axial direction of the piston ring 8, a thickness of a radial limit plug 84 is smaller than or equal to a thickness of an axial limit slot 83, so that the radial limit plug 84 is inserted into the radial limit slot 85 through the axial limit slot 83. More specifically, the thickness of the radial stopper plug 84 in the axial direction of the piston ring 8 is the same as the thickness of the axial stopper plug 82 in the axial direction of the piston ring 8, and both side surfaces of the radial stopper plug 84 in the axial direction of the piston ring 8 and both side surfaces of the axial stopper plug 82 in the axial direction of the piston ring 8 are coplanar, respectively. The thickness of the radial limit groove 85 in the axial direction of the piston ring 8 is the same as the thickness of the axial limit groove 83 in the axial direction of the piston ring 8, and both inner wall surfaces of the radial limit groove 85 in the axial direction of the piston ring 8 and both inner wall surfaces of the axial limit groove 83 in the axial direction of the piston ring 8 are coplanar, respectively.

Referring to fig. 19, as a specific embodiment of the piston ring 8 of the rotary internal combustion engine provided by the invention, the width of the axial limit plug 82 is greater than the width of the radial limit plug 84 in the radial direction of the piston ring 8.

Referring to fig. 19, as a specific embodiment of the piston ring 8 of the rotary internal combustion engine provided by the invention, the axial limit slots 83 are opened on both sides in the radial direction of the piston ring 8.

Referring to fig. 18, as an embodiment of the piston ring 8 of the rotary internal combustion engine provided by the invention, the elastic member includes elastic strips 86 having both ends respectively connected to the seal segments 81 and having a middle portion protruding from the radially inner side surface of the seal segments 81.

Referring to fig. 18, as a specific embodiment of the piston ring 8 of the rotary internal combustion engine provided by the invention, a clamping groove 811 is formed on the radially inner side surface of the sealing section 81, and two ends of the elastic strip 86 are embedded in the clamping groove 811 and the middle part is deformed and protruded radially inwards. The clamping groove 811 is a long strip groove arranged along the circumferential direction of the radially inner side surface of the sealing section 81, the elastic strip 86 can be a steel long strip, the length of the elastic strip 86 is larger than that of the clamping groove 811, two ends of the elastic strip 86 are embedded into two ends of the clamping groove 811, the middle part of the elastic strip 86 protrudes inwards in the radial direction to deform, and after the sealing section 81 is mounted on the piston 3, the middle part of the elastic strip 86 abuts against the piston 3, so that the sealing section 81 is spread outwards in the radial direction.

Gas storage structure

The air storage structure is provided on the piston 3, and specifically, either of the following two embodiments may be adopted, but other embodiments may be adopted.

Referring to fig. 12 to 14, as an embodiment of the piston 3 of the rotary internal combustion engine provided by the invention, the gas storage structure includes a gas accommodating chamber 41, a ventilation groove 42 and an opening and closing assembly.

The air chamber 41 is provided on the piston 3. The ventilation groove 42 is provided on the piston 3, the ventilation groove 42 is provided with an opening forming an inlet on the top surface of the piston 3, and the ventilation groove 42 is provided with an opening forming an outlet on the opposite side surface of the piston 3. The opening and closing assembly is provided on the piston 3 for blocking or communicating the air accommodating chamber 41 and the ventilation groove 42. The adoption of the gas storage structure in the form can avoid the leakage of the compressed gas in the gas containing cavity 41, and reduce the sealing requirements on the piston 3, the rotor 2 and the stator ring 1. More specifically, the air-accommodating chamber 41 is located inside the piston 3; the ventilation groove 42 is provided on the opposite side of the piston 3 and extends up to the abutment ramp 32, forming an opening in the abutment ramp 32.

The rotor 2 rotates positively in the stator ring 1, and when the outer end opening of the piston cavity 21 on the rotor 2 is in butt joint with the air inlet groove 11, the main cam mechanism drives the piston 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 in butt joint with the air seal area 12, the main cam mechanism drives the piston 3 to cooperate with the air seal area 12 to compress the mixed gas in the compression chamber 22, in the process, the opening and closing assembly is communicated with the gas containing chamber 41 and the ventilation groove 42, the opening of the ventilation groove 42 on the opposite side surface of the piston 3 is closed by the inner wall of the piston cavity 21, and the opening on the top surface of the piston 3 is communicated with the compression chamber 22, so that the compressed mixed gas in the compression chamber 22 enters the gas containing chamber 41 from the opening of the ventilation groove 42 on the top surface of the piston 3 through the ventilation groove 42; when compression is completed, the opening and closing assembly blocks the air accommodating chamber 41 and the ventilation groove 42, so that compressed mixed gas is stored in the air accommodating chamber 41; the rotor 2 continues to rotate, the outer end opening of the piston cavity 21 on the rotor 2 is in butt joint with the working groove 13, the main cam mechanism drives the piston 3 to be inserted into the working groove 13 to divide the working groove 13 into a combustion chamber 134 and a sliding chamber 135, at the moment, the opening of the ventilation groove 42 on the top surface of the piston 3 is closed by the bottom surface of the working groove 13, and the opening of the ventilation groove 42 on the opposite side surface of the piston 3 is communicated with the combustion chamber 134, at the moment, the opening and closing assembly is communicated with the air accommodating cavity 41 and the ventilation groove 42, so that the air accommodating cavity 41 releases mixed gas in the combustion chamber 134. More specifically, the driving method of the opening/closing member may be the driving method in the following embodiment, or may be another driving method.

Referring to fig. 13, as an embodiment of the piston 3 of the rotary internal combustion engine provided by the invention, the opening and closing assembly includes an air vent 43, a sealing plate 44 and a pry bar 45.

The ventilation hole 43 is provided in the piston 3 and communicates between the ventilation groove 42 and the air chamber 41. A closing plate 44 is slidably provided on the piston 3 to cut into the ventilation hole 43 and block the ventilation hole 43. The pry bar 45 is rotatably arranged on the piston 3, and one end of the pry bar is abutted against the sealing plate 44 and used for pushing the sealing plate 44 out of the ventilation hole 43 under the condition that the other end is stressed.

The air-accommodating chamber 41 is located inside the piston 3. The ventilation groove 42 is provided on the opposite side of the piston 3 and extends up to the top surface, on which an opening is formed. The piston 3 is provided with a sliding chamber 135 between the air accommodating chamber 41 and the ventilation groove 42, the ventilation hole 43 is a hole formed in the bottom of the ventilation groove 42, and the ventilation hole 43 passes through the sliding chamber 135 to be communicated with the air accommodating chamber 41. The closing plate 44 is slidably provided in the slide chamber 135, and is capable of being pushed by the closing follower 471 to be cut into the ventilation hole 43 or to be withdrawn from the ventilation hole 43. More specifically, the sliding direction of the closing plate 44 is parallel to the sliding direction of the piston 3, facilitating the pushing of the closing follower 471 and the opening follower 461.

The pry bar 45 is also arranged in the sliding chamber 135 on the piston 3, and the pry bar 45 is positioned on one side of the sealing plate 44 away from the rotating shaft of the rotor 2. The opening follower 461 is pushed in the same direction as the closing follower 471. One end of the pry bar 45 is abutted against the sealing plate 44, and the other end is abutted against the opening follower 461, so that the sealing plate 44 is pushed out of the ventilation hole 43 under the pushing of the opening follower 461.

By turning 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 form of the opening follower 461 and the closing follower 471 can be seen in the following embodiments.

Referring to fig. 12 to 17 together, as a specific embodiment of the rotor internal combustion engine provided by the invention, in the case of adopting the above-mentioned air storage structure, the power unit further includes an opening and closing driving mechanism including an opening cam mechanism and a closing cam mechanism.

The opening cam mechanism includes an opening cam 46 provided on the stator ring 1 and an opening follower 461 connected to the opening and closing member and rotated with the rotor 2 for driving the opening and closing member to communicate the air accommodating chamber 41 and the ventilation groove 42 when the piston 3 compresses the air in the piston chamber 21 or when the piston 3 is inserted into the work groove 13.

The closing cam mechanism includes a closing cam 47 provided on the stator ring 1 and a closing follower 471 connected to the opening and closing assembly and rotated with the rotor 2 for driving the opening and closing assembly to block the air-accommodating chamber 41 and the ventilation groove 42 after the piston 3 completes compressing the air in the piston chamber 21 and before the piston 3 is inserted into the work groove 13.

More specifically, the opening cam 46 and the closing cam 47 may be located in the housing chamber of the rotor 2, and both are coaxially fixed to the partition 14 of the stator ring 1. The opening follower 461 is a long straight rod, one end of the opening follower 461 is abutted with the pry bar 45 penetrating into the piston 3, the other end of the opening follower 461 is abutted on the outline of the opening cam 46, the opening follower 461 is driven to push the pry bar 45 by the fluctuation of the rim of the opening cam 46 through the rotation of the opening follower 461, and 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 the long straight rod is abutted against the sealing plate 44 penetrating into the piston 3, the other end of the long straight rod is abutted against the outline of the closing cam 47, the opening follower 461 follows the rotor 2 to rotate, and the opening follower 461 is driven by the fluctuation of the rim of the closing cam 47 to push the sealing plate 44 to cut into the ventilation holes 43.

Referring to fig. 12 and fig. 13 together, 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 for sliding penetrating the opening follower 461 is provided on the guide seat 27. This arrangement enables the opening follower 461 to be inserted into the opening guide hole 272 to follow the rotation of the rotor 2, improves the movement stability of the opening follower 461, and reduces the shake of the opening follower 461.

Referring to fig. 12 and 13 together, as an embodiment of the rotary internal combustion engine provided by the invention, a closing guide hole 273 for sliding through a closing follower 471 is provided on the guide seat 27. This arrangement enables the closure follower 471 to be inserted into the closure guide hole 273 to follow the rotation of the rotor 2, improves the movement stability of the closure follower 471, and reduces the rattling of the closure follower 471. More specifically, the guide shoes 27 may be located within the receiving chamber of the rotor 2 or in the inner end of the piston chamber 21.

Referring to fig. 16, as one embodiment of the rotary internal combustion engine provided by the present invention, the profile of opening cam 46 includes a compression opening segment 462 and a work opening segment 463.

The compression opening section 462 is used for pushing the opening driven member 461 away from the rotating shaft of the rotor 2 to drive the opening and closing assembly to communicate the air accommodating cavity 41 and the ventilation groove 42 after the rotor 2 rotates to the position that the opening at the outer end of the piston cavity 21 is in butt joint with the air sealing area 12 of the stator ring 1. So that the gas in the compression chamber 22 can pass through the ventilation groove 42 into the gas containing chamber 41 in the compression chamber 22. The acting opening section 463 is used for pushing the opening driven member 461 away from the rotating shaft of the rotor 2 to drive the opening and closing assembly to communicate the air accommodating cavity 41 and the ventilation groove 42 after the rotor 2 rotates until the piston 3 is inserted into the acting groove 13. So that the compressed gas in the gas-accommodating chamber 41 is released into the combustion chamber 134.

Referring to fig. 17, as one embodiment of the rotary internal combustion engine provided by the invention, the profile of the closing cam mechanism includes a compression closing segment 472. In the forward direction, the compression closing section 472 curves away from the axis of the main cam 6, the front end of the compression closing section 472 coincides with or is located behind the rear end of the insertion section 613, and the rear end of the compression closing section 472 coincides with or is located in front of the front end of the compression section 612. The compression closing section 472 is used for pushing 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 cavity 41 and the ventilation groove 42 after the rotor 2 rotates to the air accommodating cavity 41 to accommodate compressed air and before the piston 3 is inserted into the working groove 13.

More specifically, after the rotor 2 rotates to the outside end opening of the piston chamber 21 to be in butt joint with the gas seal area 12 of the stator ring 1, the compression opening section 462 drives the opening and closing assembly to communicate the gas chamber 41 and the ventilation groove 42 through the opening follower 461, so that when the piston 3 cooperates with the gas seal area 12 to compress the mixed gas, the compressed mixed gas can be accommodated into the gas chamber 41 through the opening of the ventilation groove 42 on the top surface of the piston 3, and then the compression opening section 472 blocks the gas chamber 41 and the ventilation groove 42 through the opening of the ventilation groove 42, the compressed mixed gas is sealed in the gas chamber 41 through the closing follower 471, and after the rotor 2 rotates to the top end of the piston 3 to be inserted into the working groove 13, the working opening section 463 drives the opening and closing assembly to communicate the gas chamber 41 and the ventilation groove 42 through the opening follower 461, so that the compressed gas in the gas chamber 41 can be released into the combustion chamber 134 from the opening of the ventilation groove 42 on the opposite side surface through the opening of the ventilation groove 42.

On the premise of ensuring that the closing cam mechanism can realize the functions, the outline of other parts of the opening cam 46 except the compression opening section 462 and the acting opening section 463 can be a pry bar 45 which is arranged to keep the opening driven piece 461 pushing against the opening and closing assembly, so that the sealing plate 44 is positioned outside the air exchanging hole 43, and when the rotor 2 rotates, the outer end opening of the piston cavity 21 is in butt joint with the air inlet groove 11 of the stator ring 1 and other parts of the inner peripheral surface on the stator ring 1, the opening and closing assembly is communicated with the air accommodating cavity 41 and the air exchanging groove 42, and random sliding of the sealing plate 44 in the rotating process of the rotor 2 can be avoided. In this case, the profile of the other portion of the closing cam 47 than the compression closing section 472 may be such that it is kept in sliding contact with the closing follower 471, avoiding the closing follower 471 from sliding randomly during the rotation of the rotor 2.

Referring to fig. 3 to 8, as a specific embodiment of the piston 3 of the rotary internal combustion engine provided by the invention, the top surface of the piston 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 tilted away from the main area 31. The gas storage structure comprises an open groove 58 arranged on the piston 3; the open groove 58 is provided with an opening on the opposite side of the piston 3, the opening of the open groove 58 on the opposite side of the piston 3 forming an outlet, the opening of the open groove 58 extending from the opposite side of the piston 3 to the abutment ramp 32 of the piston 3 and forming an inlet on the abutment ramp 32. More specifically, the main region 31 of the top surface of the piston 3 is opposite to the bottom surface of the work groove 13. The fitting slope surface 32 is matched with the wall surface of the opposite end of the working groove 13 of the stator ring 1.

When the rotor 2 rotates positively in the stator ring 1 and the outer end opening of the piston cavity 21 on the rotor 2 is in butt joint with the air inlet groove 11, the main cam mechanism drives the piston 3 to suck the mixed gas in the air inlet groove 11 and suck the mixed gas 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 in butt joint with the air seal area 12, the main cam mechanism drives the piston 3 to be matched with the air seal area 12 to compress the mixed gas in the compression chamber 22, in the process, the compressed mixed gas enters the open groove 58 from the part of the opening of the open groove 58, which is positioned on the joint slope 32, after the compression is completed, the piston 3 is retracted into the piston cavity 21, and the inner wall surface of the stator ring 1 and the inner wall of the piston cavity 21 form a sealing cavity with the joint slope 32 to ensure the sealing of the opening of the open groove 58, so that the compressed mixed gas is accommodated in the open groove 58; the rotor 2 continues to rotate, the outer end opening of the piston cavity 21 on the rotor 2 is in butt joint with the working groove 13, the piston 3 is pushed by the driving and driven piece 62 of the main cam mechanism, the piston 3 slides along the wall surface of the reverse end of the working groove 13 and is gradually inserted into the working groove 13, in the process, the joint slope 32 is jointed with the wall surface of the reverse end of the working groove 13, so that the wall surface of the reverse end of the working groove 13 seals the part of the opening of the open groove 58 on the joint slope 32, and after the piston 3 extends out of the piston cavity 21 and is inserted into the working groove 13, the part of the opening of the open groove 58 on the reverse side surface of the piston 3 is opened, and the mixed gas in the open groove 58 is released into the combustion chamber 134. When the rotor 2 rotates until the top surface of the piston 3 is in fit with the bottom surface of the working groove 13, the opening of the opening groove 58 is completely opened. In addition, the contact slope 32 slides against the wall surface at the opposite end of the working groove 13, so that the abrasion at the opposite side of the piston 3 can be reduced, and the resistance can be reduced.

Main cam mechanism

Referring to fig. 3, 6, 12, 13 and 15, as one 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.

The main follower 62 is slidably disposed on the rotor 2 and rotates with the rotor 2, and has one end for connection with the piston 3 and the other end provided with a cam roller. The main cam 6 is for connection to the stator ring 1, and is provided with an annular cam groove 61 accommodating a cam roller, and in the forward direction, the cam groove 61 includes an intake section 611, a compression section 612, an insertion section 613, and a recovery section 615, which are connected in this order. In the forward 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.

The air inlet section 611 is used for pushing the piston 3 to slide close to the rotating shaft of the rotor 2 through the driving and driven piece 62 after the rotor 2 rotates to the opening of the outer end of the piston cavity 21 to be in butt joint with the air inlet groove 11 of the stator ring 1, so that the piston 3 sucks the air in the air inlet groove 11 into the compression chamber 22. The compression section 612 is used for pushing the piston 3 to slide away from the rotating shaft of the rotor 2 through the driving and driven piece 62 after the rotor 2 rotates to the opening of the outer end of the piston cavity 21 to be in butt joint with the air seal area 12 of the stator ring 1, so that the piston 3 compresses the gas in the compression chamber 22. The insertion section 613 is used for pushing the piston 3 to slide away from the rotating shaft of the rotor 2 through the driving and driven piece 62 after the rotor 2 rotates to the position that the opening at the outer end of the piston cavity 21 is in butt joint with the working groove 13 of the stator ring 1, so that the piston 3 is inserted into the working groove 13 and the working groove 13 is divided into a combustion chamber 134 and a sliding chamber 135. The recovery section 615 is used for pushing the piston 3 to slide close to the rotating shaft of the rotor 2 through the driving and driven piece 62 before the rotor 2 rotates to the point that the piston 3 collides with the inner wall of the positive end of the working groove 13, so that the top end of the piston 3 is retracted into the piston cavity 21.

More specifically, the main cam 6 is located in the housing cavity of the rotor 2 and may be fixed to the partition 14 of the stator ring 1. The intake section 611, the compression section 612, the insertion section 613, and the recovery section 615 are sequentially and smoothly connected in a loop shape. The primary follower 62 may be a long straight rod having one end secured to the piston 3 and the other end extending from the inner end of the piston chamber 21 and being in cam engagement with the primary cam 6 by a cam roller. The main follower 62 is driven to rotate relative to the main cam 6 by the rotor 2, so that the main follower 62 drives the piston 3 to move in the piston chamber 21 under the pushing of the 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 which mesh with each other to avoid slipping of the cam roller and the main cam 6.

The air inlet section 611 is an arc-shaped groove gradually approaching to the rotating shaft of the rotor 2 in the forward direction, and the groove wall of the outer ring of the air inlet section 611 pulls the piston 3 to the direction approaching to the rotating shaft of the rotor 2 through the driving and driven piece 62, so that the piston 3 sucks the mixed gas in the air inlet groove 11 into the compression chamber 22. The compression section 612 is an arc-shaped groove gradually far from the rotating shaft of the rotor 2 in the forward direction, and the groove wall of the inner ring of the air inlet section 611 pushes the piston 3 to the direction far from the rotating shaft of the rotor 2 through the driving and driven piece 62, so that the piston 3 compresses the mixed gas in the compression chamber 22. The insertion section 613 is an arc-shaped groove gradually far away from the rotating shaft of the rotor 2 in the forward direction, and the groove wall of the inner ring of the insertion section 613 pushes the piston 3 to a direction far away from the rotating shaft of the rotor 2 through the driving and driven piece 62, so that the piston 3 is inserted into the working groove 13 until the top surface of the piston 3 is attached to the bottom surface of the working groove 13. The recovery section 615 is an arc-shaped groove which gradually approaches the rotating shaft of the rotor 2 in the forward direction, and the groove wall of the outer ring of the recovery section 615 pulls the piston 3 to the direction approaching the rotating shaft of the rotor 2 through the driving and driven piece 62, so that the top end of the piston 3 is retracted into the piston cavity 21, and the top end of the piston 3 is prevented from colliding with the inner wall of the forward end of the working groove 13.

Referring to fig. 13, as a specific embodiment of the main cam mechanism of the rotary internal combustion engine provided by the invention, the main cams 6 have two, the side surfaces of the two main cams 6 provided with the cam grooves 61 are disposed opposite to each other and the middle forms a movable gap for accommodating the main follower 62. The two main cams 6 are mirror images, and a certain distance is formed between the two main cams to form a movable gap. Two coaxial cam rollers are arranged on two sides of one end of the main follower 62, the main follower 62 is inserted into the movable gap, and the two cam rollers are respectively embedded into the cam grooves 61 of the two main cams 6 to prevent the main follower 62 from being separated from the main cams 6.

Referring to fig. 3, 6, 12, 13 and 15, as an embodiment of the main cam mechanism of the rotary internal combustion engine provided by the invention, the cam groove 61 further includes a work holding section 614 connected between the insertion section 613 and the recovery section 615. The work holding section 614 has a circular arc shape concentric with the main cam 6. The work holding section 614 serves to hold the piston 3 stationary with respect to the piston chamber 21 by the driving follower 62 after the rotor 2 rotates until the piston 3 is inserted into the work groove 13.

More specifically, the working holding section 614 is configured to hold the piston 3 stationary with respect to the piston chamber 21 by the driving and driven member 62 after the rotor 2 rotates until the top surface of the piston 3 abuts the bottom surface of the working groove 13, and to hold the top surface of the piston 3 abuts the bottom surface of the working groove 13. Work-holding segment 614 may be an arcuate slot centered on the axis of rotor 2.

More specifically, the insertion section 613 is configured to push the piston 3 to slide along the wall surface of the opposite end of the working groove 13 by the driving and driven member 62, and the abutment slope 32 of the piston 3 slides in abutment along the wall surface of the opposite end of the working groove 13.

More specifically, the opening cam 46 and the closing cam 47 are coaxially fixed together with the main cam 6 to form a cam group.

Ignition timing mechanism 7

Referring to fig. 3, 6, 12, 13 and 15, as a specific embodiment of the ignition timing mechanism 7 of the rotary internal combustion engine provided by the invention, the power unit further includes the 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.

The normally closed base 71 is coaxially provided on the rotor 2, and a long contact ring 72 is provided on the outer peripheral surface. A normally closed brush 73 is connected to the stator ring 1 in sliding contact with and electrically connected to the long closed contact ring. The timing base 74 is coaxially provided on the rotor 2, and an ignition contact 76 is provided on the outer peripheral surface thereof, and the ignition contact 76 and the long contact ring 72 are electrically connected. The timing brush 75 is connected to the stator ring 1, and is in sliding contact with the outer peripheral surface of the timing base 74 for electrical connection with the ignition contact 76. The position of the ignition contact 76 in the circumferential direction of the timing base 74 is set for the timing brush 75 to contact the ignition contact 76 after the piston 3 is inserted into the work groove 13 and the gas storage structure releases the compressed gas in the combustion chamber 134.

In use, the timing brush 75 and the normally-closed brush 73 can be electrically connected with the controller of the ignition assembly 131 through wires, and the controller of the ignition assembly 131 can judge whether the timing brush 75 and the normally-closed brush 73 are conducted or not to control the ignition timing of the ignition assembly 131.

Specifically, the ignition contacts 76 may be a plurality of ignition contacts having a distribution along the circumference of the timing base 74, each ignition contact 76 being electrically connected with the long closed contact ring 72. Conductors are provided within normally closed base 71 and timing base 74 that connect ignition contact 76 and long contact ring 72 together. When the rotor 2 rotates until the piston 3 is inserted into the working groove 13 and the compressed gas is released into the combustion chamber 134 by the gas storage structure, the timing brush 75 contacts with the ignition contact 76, and the controller of the ignition assembly 131 judges that the timing brush 75 is communicated with the normally closed brush 73 through the ignition contact 76 and the long contact ring 72, so that the ignition assembly 131 is controlled to ignite the combustible gas in the combustion chamber 134.

Compared with the prior art, the vehicle provided by the embodiment of the invention adopts the rotor internal combustion engine, and the impact force generated by the combustion of the combustible gas in the combustion chamber 134 directly acts on the opposite side surface of the piston 3 to drive the rotor 2 to rotate, so that the conversion of a crank-link mechanism is avoided, the torque generated on the rotor 2 is larger, and the energy conversion efficiency is higher.

Compared with the prior art, the aircraft provided by the embodiment of the invention adopts the rotor internal combustion engine, and the impact force generated by the combustion of the combustible gas in the combustion chamber 134 directly acts on the reverse side surface of the piston 3 to drive the rotor 2 to rotate, so that the conversion of a crank-link mechanism is avoided, the torque generated on the rotor 2 is larger, and the energy conversion efficiency is higher.

Compared with the prior art, the ship provided by the embodiment of the invention adopts the rotor internal combustion engine, and the impact force generated by the combustion of the combustible gas in the combustion chamber 134 directly acts on the reverse side surface of the piston 3 to drive the rotor 2 to rotate, so that the conversion of a crank-link mechanism is avoided, the torque generated on the rotor 2 is larger, and the energy conversion efficiency is higher.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. A cylinder comprising at least one stator ring;

The air inlet groove is provided with an air inlet;

the part of the inner peripheral surface of the stator ring, which is positioned between the air inlet groove and the acting groove, forms the air seal area;

the stator ring is provided with a baffle plate for closing the end face of the inner cavity of the stator ring; the cylinder body comprises at least two coaxially arranged stator rings; the two adjacent stator rings are oppositely arranged on the partition plates, an oiling gap is formed in the middle of the two adjacent stator rings, and the partition plates are provided with lubricating oil holes which are communicated with the oiling gap and the inner cavity of the stator rings.

2. The cylinder according to claim 1, wherein a plurality of the circulation groups are provided in order in the circumferential direction on the inner circumferential surface of the same stator ring.

3. The cylinder as set forth in claim 1, wherein an inner circumferential surface of the stator ring has a cylindrical shape.

4. The cylinder as claimed in claim 1, wherein the bottom of the working groove is a circular arc surface.

5. A rotary internal combustion engine comprising a cylinder as claimed in any one of claims 1 to 4.

6. A vehicle comprising a rotary internal combustion engine according to claim 5.

7. An aircraft comprising a rotorcraft internal combustion engine as claimed in claim 5.

8. A marine vessel comprising a rotary internal combustion engine as claimed in claim 5.