WO2021088135A1

WO2021088135A1 - Cavity having zelun circle shape, fluid working device, and engine

Info

Publication number: WO2021088135A1
Application number: PCT/CN2019/119853
Authority: WO
Inventors: 何金潜; 何泽仑
Original assignee: 何金潜; 何泽仑
Priority date: 2019-11-04
Filing date: 2019-11-21
Publication date: 2021-05-14
Also published as: CN110630334A

Abstract

A cavity (10) having a Zelun circle shape, a cavity (101) having a Zelun circle shape being provided inside the cavity, wherein the Zelun circle is a closed shape formed by connecting two arcs (AB, CD) having equal radian and two curves (AD, BC) in sequence connected end to end; the centers of the two arcs coincide and the center is denoted as K; the two arcs are distributed relative to each other; the radii of the two arcs are R1 and R2, respectively, and R1<R2; the opposite end points of the two arcs on the same side are connected by means of a curve, so that the two curves are connected between the two arcs, and the distance between any two points that pass through the center K and intersect with the Zelun circle is the sum of R1 and R2. The cavity can be widely used in various mechanical devices, such as a gas collector, a compressor, a heat engine, an engine, an internal combustion engine, a gas engine, a pneumatic motor, a steam turbine, a water turbine or a pump, etc., has a simple structure and high thermal efficiency. Also provided are a fluid working device and an engine that have the cavity.

Description

Cavity with Zelun round shape, fluid working device and engine

Technical field

The invention relates to a cavity with a Zelun round shape, in particular to a cavity which can be widely used in various mechanical equipment and can improve thermal efficiency. In addition, the present invention also provides a fluid working device and an engine including the cavity.

Background technique

Internal combustion engines, steam turbines, water turbines, pumps and gas compressors are all basic mechanical devices of the national economy, and the technology is very mature. Improving efficiency, simplifying the structure, reducing the difficulty of manufacturing are the eternal themes of these basic mechanical devices, and to make breakthroughs in the above-mentioned fields, it is necessary to innovate in the basic structure and theory.

Take the internal combustion engine with cylinder piston as the core component as an example. The internal combustion engine technology is simple and mature, but the structure is complex. It requires a complete set of crank and connecting rod mechanism and complex intake and exhaust mechanism to realize the conversion of linear motion into rotary motion, and the thermal efficiency is relatively low. .

Summary of the invention

The purpose of the present invention is to provide a cavity, a fluid working device and an engine with a Zelun round shape, so as to solve the problems of low thermal efficiency and complex structure of the existing basic mechanical devices.

In order to solve the above-mentioned problems, the present invention provides a cavity with a Zelun circle shape, and the inside of the cavity has a Zelun circle-shaped cavity, wherein the Zelun circle is composed of two segments with equal arcs and the arcs are not greater than 90°. A closed figure formed by connecting the two arcs and two curves in turn. The centers of the two arcs coincide and the center is denoted as K. The two arcs are distributed relative to each other. The radii of the two arcs are R1 and R2 respectively, and R1 <R2, the opposite end points of the two arcs on the same side are connected by a curve, so that the two curves are distributed symmetrically about the center K and are connected between the two arcs, any one passing through the center K and intersecting the Zelun circle The distance between the two points is the sum of R1 and R2, and all points on the Zelun circle are continuous and derivable.

According to an embodiment of the present invention, the cavity is a cylinder.

According to another aspect of the present invention, the present invention further provides a fluid working device, the fluid working device comprising the cavity, the rotor and the blade according to any one of the above.

The cavity in the shape of Zelun circle inside the cavity serves as a working cavity for fluid and is provided with an inlet and an outlet. The rotor is rotatably installed inside the cavity. The rotor is circular and has a radius of R1. The center of the rotor coincides with the center K. The rotor is provided with a radial sliding groove passing through the center K. The blade is slidably installed in the chute of the rotor. The length of the blade is equal to the sum of R1 and R2. The working medium enters the cavity from the inlet and is discharged from the outlet. The rotor rotates around the center K and drives the blade to rotate. The two ends of the blade are restricted by the inner wall of the cavity, so that the blade slides along the chute while rotating. The space formed between the cavity and the rotor is divided into three sub-spaces by the blades, and the size of the three sub-spaces periodically changes with the rotation of the blades, so that the pressure of the working medium is periodically increased or decreased accordingly.

According to an embodiment of the present invention, the fluid working device is one of a gas collector, a compressor, a heat engine, an engine, an internal combustion engine, a gas engine, a pneumatic motor, a steam turbine, a water turbine, or a pump, and the cavity is a cylinder, Volute or pump housing.

According to another aspect of the present invention, the present invention further provides an engine including a heat engine cylinder, a rotor, a blade assembly, two pressure cylinders, and two collecting cylinders. The heat engine cylinder is an annular shell according to the above-mentioned cavity structure. The inner wall contour of the heat engine cylinder is a round shape. The center of the heat engine cylinder has a channel. The side wall of the heat engine cylinder is provided with an exhaust port and a spark plug. The outer wall is provided with a high-pressure air chamber, and the side wall of the high-pressure air chamber is provided with an oil injection nozzle and an air distribution groove communicating with the inside of the heat engine cylinder.

The two pressure cylinders are both annular shells based on the above-mentioned cavity structure. The inner wall of the pressure cylinder is in the shape of a Zelun circle. The center of the pressure cylinder has a channel. The two pressure cylinders are respectively joined to the opposite sides of the heat engine cylinder. Both pressure cylinders are provided with air inlets.

The two collecting cylinders are both circular shells with a channel in the center, and the collecting cylinders are respectively integrally joined to the side walls of the two pressure cylinders in a one-to-one correspondence. The heat engine cylinder, the pressure cylinder and the collecting cylinder are fixed side by side, and one side of the collecting cylinder is provided with an air collecting cavity, and the air collecting cavity is connected with the high pressure air chamber through a high pressure air pipe.

The rotor is circular and has a radius of R1. The center of the rotor has a rotating shaft. The rotor is provided with two pairs of exhaust grooves, a pair of combustion chambers and three pairs of blade installation grooves. Each pair of exhaust grooves, each pair of combustion chambers, and each pair of blade installation grooves are symmetrically distributed on the opposite side walls of the rotor, and the three blade installation grooves on the same side wall of the rotor are distributed on the same horizontal line. The rotor is rotatably installed in the cavity formed by the heat engine cylinder, the pressure cylinder and the collecting cylinder, and the rotating shaft penetrates the heat engine cylinder, the pressure cylinder and the collecting cylinder. The centers K of the heat engine cylinder and the pressure cylinder whose inner walls are all in the shape of Zelun circle and the center of the collecting cylinder are all located on the central axis of the rotating shaft. In the direction of rotation of the rotor, the three blade mounting slots on the same side wall are located in front of the combustion chamber on the same side wall, and the two exhaust slots on the same side wall are located on the same side wall of the three blade mounting slots. In front of the, part of each exhaust groove is located in the collecting cylinder and the other part is located in the pressure cylinder.

The blade assembly is in the shape of a plate as a whole, and the two ends are respectively provided with three-stage blade parts. The blade assembly is radially slidably installed on the rotor and penetrates the shaft of the rotor. The blade parts at both ends of the blade assembly are respectively inserted into the blade installation grooves on the opposite side walls of the rotor. The three blade parts at each end correspond to each other. Insert the three blade installation slots on the same side wall of the rotor. Among the three blade sections at each end, the middle blade section extends into the heat engine cylinder and serves as a heat engine blade, while the blade sections on both sides of the heat engine blade extend into two pressure cylinders and serve as compressor blades. The length of the blade assembly is the sum of R1 and R2, and the two pressure cylinders are separated from each other by the partition plate and the heat engine cylinder;

As the rotor rotates to drive the blade assembly to rotate, the heat engine blades and compressor blades at the two ends of the blade assembly are respectively restricted by the inner walls of the heat engine cylinder and the compressor cylinder in the shape of Zelun, so that the entire blade assembly slides along the radial direction of the rotor. The space formed between the heat engine cylinder and the pressure cylinder and the rotor is divided into three sub-spaces by the blade assembly, and the size of the three sub-spaces periodically changes with the rotation of the blade assembly.

During operation, the air first enters the two pressure cylinders from the two air intake ports and is compressed as the blade assembly rotates; when the rotor rotates to the position where the exhaust groove and the air collection cavity are connected, the compressed air Air enters the air-collecting chamber of the collecting cylinder; the air in the air-collecting chamber enters the high-pressure air chamber through the high-pressure air pipe and mixes with the fuel sprayed from the fuel injector to become a high-pressure oil-gas mixture; when the rotor rotates to the combustion chamber and the air distribution groove, The high-pressure oil and gas mixture enters the combustion chamber; when the rotor rotates until the combustion chamber is in the position of the cremation plug, the high-pressure mixed oil and gas are ignited and expanded in the heat engine cylinder, thereby generating a pressure difference on both sides of the heat engine blades and pushing the rotor to rotate for outward output kinetic energy.

According to an embodiment of the present invention, the blade assembly includes two E-shaped connecting plates and two parallel strip-shaped plates, and the two strip-shaped plates are both connected between the two E-shaped connecting plates, forming an E-shaped connection. The end of the plate forms three of the blade portions.

According to an embodiment of the present invention, the interior of the rotor is hollow, and the rotating shaft is connected to the side wall of the rotor through a plurality of ribs.

According to an embodiment of the present invention, the width of the heat engine cylinder is greater than the sum of the widths of the two pressure cylinders.

According to another aspect of the present invention, the present invention further provides a fluid working device 1, which includes a cavity, a rotor, and blades. The inner wall contour of the cavity includes a circular arc with a radius of R1, the center of the arc of the cavity is K, and the cavity serves as a fluid working cavity and is provided with an inlet and an outlet. The rotor is circular and has a radius of R1. The rotor is installed in the cavity. The center of the rotor coincides with the center K, so that the arc of the cavity coincides with a part of the rotor. The space formed by the cavity and the rotor becomes a discontinuous space. There are radial chutes. The blade is slidably installed in the chute of the rotor; the working medium enters the cavity from the inlet and is discharged from the outlet. The rotor rotates around the center K and drives the blade to rotate. The two ends of the blade are restricted by the inner wall of the cavity, so that the blade is rotating While sliding along the chute, the space formed between the cavity and the rotor is divided into three sub-spaces by the blades. The size of the three sub-spaces changes periodically with the rotation of the blades, so that the pressure of the working medium occurs periodically. Increase or decrease sexually.

Compared with the prior art, this technical solution has the following advantages:

The cavity with Zelun round shape provided by the present invention has a special Zelun round cavity, and the cavity, rotor, and blades of this shape can be assembled together to become a fluid working Device. The area between the cavity and the rotor is divided into three subspaces by the blades. The size of the three subspaces will periodically change with the rotation of the blades, so that the pressure of the working medium inside will change periodically accordingly. . This structural principle can be widely used in various mechanical devices, such as gas collectors, compressors, heat engines, engines, internal combustion engines, gas engines, pneumatic motors, steam turbines, water turbines or pumps, etc. The mechanical device adopting the cavity with the round shape of Zelun has a simple structure and high thermal efficiency.

Description of the drawings

Figure 1 shows the shape of Zelun circle;

Figure 2 is a schematic structural diagram of a fluid working device provided by an embodiment of the present invention in a first state;

Figure 3 is a schematic structural diagram of a fluid working device in a second state according to an embodiment of the present invention;

4 is a schematic diagram of a three-dimensional structure of an engine provided by an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a thermal cylinder of an engine provided by an embodiment of the present invention;

Figure 6 is a schematic diagram of the structure of the compression cylinder and the manifold of the engine provided by an embodiment of the present invention;

Figure 7 is a schematic structural diagram of a rotor of an engine provided by an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of a blade assembly of an engine provided by an embodiment of the present invention;

9 is a schematic diagram of the overall structure of the rotor in FIG. 7 and the blade assembly in FIG. 8 assembled together;

Fig. 10 is a schematic structural diagram of the overall structure in which the rotor in Fig. 7 and the blade assembly in Fig. 8 are assembled together from another perspective;

11 is a cross-sectional view of the overall structure of the engine's heat engine cylinder, pressure cylinder, and collector cylinder assembled together according to an embodiment of the present invention;

12 is a schematic diagram of the corresponding positional relationship in the heat engine cylinder, the pressure cylinder, and the collector cylinder after the rotor and blade components of the engine are assembled together according to an embodiment of the present invention;

Figure 13 is a schematic structural diagram of an engine provided by an embodiment of the present invention in a first working state;

Figure 14 is a schematic structural diagram of an engine provided by an embodiment of the present invention in a second working state;

15 is a schematic structural diagram of the engine provided by the embodiment of the present invention in the third working state;

Fig. 16 is a structural diagram of the engine provided by the embodiment of the present invention in a fourth working state.

Detailed ways

The following description is only used to disclose the present invention so that those skilled in the art can implement the present invention. The embodiments in the following description are only examples, and those skilled in the art can think of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not deviate from the spirit and scope of the present invention.

The present invention provides a cavity 10 having a Zelun round shape, and the cavity 10 has a Zelun round cavity 101 inside. Figure 1 shows the shape of Zelun circle. Zelun circle is composed of two arcs with equal arc and arc not greater than 90°, namely arc AB, arc CD, and two curves, curve BC, and curve AD. Connected closed graphics. The centers of the arcs AB and CD coincide and the center of the circle is K. The arcs AB and CD are distributed relative to each other and their respective radii are denoted as R1 and R2, where R1<R2. The end points of the two arcs AB and CD on the same side are connected by the curve BC, and the end points on the other side of the two arcs AB and CD are connected by the curve AD; In other words, the opposite end points of the two arcs AB and CD on the same side are connected by curve BC and curve AD respectively, so that the two curves, curve BC and curve AD, are relatively distributed and connected to the two arcs. Between arc AB and arc CD. All points on the Zelun circle are continuous and derivable, and the curve BC and the curve AD are symmetrically distributed about the center K. The distance between any two points passing through the center K and intersecting the Zelun circle is the sum of R1 and R2. For example, if the straight line EH passes through the center K and intersects the Zelun circle at points E and H, and the line FG passes through the center K and intersects the Zelun circle at points F and G, then the length of the straight line EH and the straight line FG are equal and equal to The sum of R1 and R2, that is, EH=FG=R1+R2. In industrial applications, the cavity 10 having a Zelun round shape can be used as a part of a cylinder or other fluid working device.

As shown in FIGS. 2 and 3, the present invention further provides a fluid working device 1, the fluid working device 1 includes the above-mentioned cavity 10 having a Zelun round shape, a rotor 20 and a blade 30.

The cavity 101 in the shape of Zelun circle inside the cavity 10 serves as a working cavity for fluid and is provided with an inlet 102 and an outlet 103. The inlet 102 is provided at one of the curve BC and the curve AD, and the outlet 103 is provided at the other of the curve BC and the curve AD. Both the inlet 102 and the outlet 103 are located on the side of the curve BC or the curve AD close to the arc AB with the radius R1.

The rotor 20 is rotatably installed inside the cavity 10, and the rotor 20 is circular and has a radius R1. The center of the rotor 20 coincides with the center K, that is, the center of the rotor 20 is also the center K. In this way, part of the arc of the rotor 20 coincides with one of the arcs of the cavity 10 with a radius R1, and the arc of the overlap is α. The rotor 20 is provided with a radial sliding groove 201 passing through the center K of the circle.

The blade 30 is slidably installed in the sliding groove 201 of the rotor 20, that is, the blade 30 can slide along the sliding groove 201 in the radial direction of the rotor 20. The length of the blade 30 is equal to the sum of R1 and R2, so the end of the blade 30 penetrates the rotor 20 and extends into the cavity 101 of the cavity 10. It can be understood that when the rotor 20 rotates around the center K, the blade 30 rotates with the rotor 20, because the length of the blade 30 is equal to the sum of R1 and R2, and the blade 30 also penetrates the center K and can rotate around the center K. At the same time, it also slides along the sliding groove 201, so the two ends of the blade 30 are restricted by the inner wall of the cavity 101 of the cavity 10 and move along the inner wall of the cavity 101. Round shape.

When the fluid working device 1 is in operation, the cavity 10 in the shape of Zelun circle is fixed and the working medium enters from the inlet 102. The rotor 20 rotates around the center K and drives the blade 30 to rotate. For example, the rotor 20 and the blade 30 are both clockwise. When rotating, the two ends of the blade 30 are restricted by the inner wall of the cavity 10, so that the blade 30 slides along the sliding groove 201 while rotating. The space formed between the cavity 10 and the rotor 30 is divided into three sub-spaces by the blade 30. The subspaces are denoted as 104, 105, and 106, respectively. The size of the three

sub-spaces

104, 105, 106 changes periodically with the rotation of the blade 30, so that the pressure of the working medium is correspondingly increased or decreased periodically. When the blade 30 rotates to the position of the outlet 103, the area of the subspace 106 drops to zero, and the working medium is discharged from the outlet 103 accordingly.

In particular, the fluid working device 1 is one of a gas collector, a compressor, a heat engine, an engine, an internal combustion engine, a gas engine, a pneumatic motor, a steam turbine, a water turbine, or a pump, and the cavity 10 is a cylinder or a volute. Or one of the pump casings.

It is understandable that the cavity 10 with a Zelen circle shape can be applied to many mechanical devices. For example, when the cavity 10 is used as a cylinder, when the working medium containing kinetic energy and potential energy is such as water, gas (such as high temperature and high pressure steam) When air or combustion gas enters the cavity 10 through the inlet 102, the working medium generates a pressure difference between the two sides of the blade 30 and drives the rotor 20 to rotate, thereby outputting rotational kinetic energy through the shaft of the rotor 20. This principle can be applied to water turbines and steam engines. , Pneumatic motors, internal combustion engines, gas engines and other mechanical devices. When the high-temperature and high-pressure combustion gas is applied to the fluid working device 1 as a working medium, we call the fluid working device 1 a Zelun circular heat engine.

Conversely, the external rotational kinetic energy is input through the shaft of the rotor 20 to push the rotor 20 to rotate, and the working medium such as water, gas, hydraulic oil, etc. is sucked in at the inlet 102 and absorbing the kinetic energy, and then flows out at the outlet 103 to realize the lifting or compression of the working medium. This principle can be applied to various pumps, air compressors and other mechanical equipment. When the fluid working device 1 is used for air compression, we call the fluid working device 1 a Zelun compressor. The mechanical device adopting the cavity with the round shape of Zelun has the advantages of simple structure and high thermal efficiency.

According to another aspect of the present invention, the present invention further provides a working fluid device. The fluid working device includes a cavity, a rotor, and a blade. The cavity is not limited to the shape of Zelun circle, but the inner wall contour of the cavity includes a circular arc with a radius of R1. The center of the arc of the cavity is K. The cavity is used as a fluid working cavity and is provided with an inlet and an outlet. The rotor is circular and has a radius of R1. The rotor is installed in the cavity. The center of the rotor coincides with the center K, so that the arc of the cavity coincides with a part of the rotor. The space formed by the cavity and the rotor becomes a discontinuous space. There are radial chutes. The blade is slidably installed in the chute of the rotor; the working medium enters the cavity from the inlet and is discharged from the outlet. The rotor rotates around the center K and drives the blade to rotate. The two ends of the blade are restricted by the inner wall of the cavity, so that the blade is rotating While sliding along the chute, the space formed between the cavity and the rotor is divided into three sub-spaces by the blades. The size of the three sub-spaces changes periodically with the rotation of the blades, so that the pressure of the working medium occurs periodically. Increase or decrease sexually.

As shown in Figs. 4-12, the present invention further provides an engine 2, which is also called a Zelunyuan engine. The engine 2 includes a heat engine cylinder 40, two pressure cylinders 50, two gas collectors 60, a rotor 70 and a blade assembly 80.

The heat engine cylinder 40 is an annular shell according to the above-mentioned cavity 10 structure. Specifically, the inner wall profile of the heat engine cylinder 40 has a Zelun circle shape, that is, the heat engine cylinder 40 has a Zelun circle cavity 401 inside. The center of the heat engine cylinder 40 has a passage 402 that penetrates the heat engine cylinder 40, and the passage 402 also communicates with the cavity 401. An exhaust port 403 and a spark plug 41 are provided on the outer wall of the heat engine cylinder 40 with a Zelun round shape. The outer wall of the heat engine cylinder 40 with a Zelun round shape is also provided with a high-pressure air chamber 42. The high-pressure air chamber 42 is a chamber separated from the cavity 401 and shares a circular arc surface with a radius R1. The side wall of the high-pressure air chamber 42 is provided with a fuel injection nozzle 421 and an air distribution groove 4201 communicating with the cavity 401 inside the heat engine cylinder 40, wherein the air distribution groove 4201 is located in a circular arc shared by the high-pressure air chamber 42 and the cavity 401 Surface. The width of the heat engine cylinder 40 is denoted as H1.

Particularly, in this embodiment, in order to facilitate manufacturing and assembly in practical applications, the heat engine cylinder 40 includes two shells 43, the two shells 43 have the same structure and are symmetrical, and the two shells 43 are joined together to form a complete structure. The heat engine cylinder 40. The cavity 401, the exhaust port 403, and the high-pressure gas chamber 42 are all divided into two parts located in the two shells 43, respectively.

The two pressure cylinders 50 are both ring-shaped shells according to the structure of the cavity 10 described above. The inner wall contour of each pressure cylinder 50 is in the shape of a Zelun circle, that is, the inside of each pressure cylinder 50 has a cavity 501 in the shape of a Zelun circle. The two pressure cylinders 50 are respectively joined to two opposite sides of the heat engine cylinder 40, that is, the heat engine cylinder 40 is sandwiched between the two pressure cylinders 50. The two pressure cylinders 50 are both provided with an air inlet 503, and the air inlet 503 is located on the outer wall of the pressure cylinder 50 having a Zelen circle shape. The width of the two pressure cylinders 50 is denoted as H2.

The two collecting cylinders 60 are both circular casings, that is, the inside of the collecting cylinder 60 has a circular cavity 601, and the center of each of the two collecting cylinders 60 has a channel 602. Two collecting cylinders 60 are integrally joined to the side walls of the two pressure cylinders 50 in a one-to-one correspondence. In this way, the heat engine cylinder 40, the two pressure cylinders 50 and the two collecting cylinders 60 are fixed side by side to form a whole, and the passage 402 of the heat engine cylinder 40, the pressure cylinder and the passage 602 of the collecting cylinder 60 are all connected to each other in sequence, so that the heat engine cylinder 40. The center of the whole composed of the pressure cylinder 50 and the collecting cylinder 60 penetrates through. Each side of the two collecting cylinders 60 has an air collecting cavity 603, and the air collecting cavity 603 is a cavity communicating with the circular cavity 601 inside the collecting cylinder 60. The gas collecting cavity 603 of each collecting cylinder 60 is in one-to-one correspondence with the high pressure gas chamber 42 through the high pressure gas pipe 90. Optionally, the gas collecting cavity 603 is fan-shaped, the arc is designed according to needs, the inner arc radius of the gas collecting cavity 603 is R1, the outer wall of the gas collecting cavity 603 is provided with an air outlet, the gas outlet on the outer wall of the gas collecting cavity 603 and the high pressure The trachea 90 is connected.

The rotor 70 has a circular shape and a radius of R1, and the center of the rotor 70 has a rotating shaft 71. In practical applications, in order to make the rotor 70 lighter, the interior of the rotor 70 is hollow. Specifically, the rotor 70 includes the rotating shaft 71, an annular housing 72 and a plurality of ribs 73. The rotating shaft 71 is located on the central axis inside the housing 72, that is, the housing 72 surrounds the rotating shaft 71. The housing 72 is connected to the rotating shaft 71 through ribs 73. The ribs 73 extend from the rotating shaft 71 to the housing 72. All the ribs 73 It is distributed between the rotating shaft 71 and the housing 72 at radial intervals. Each rib 72 is provided with a plurality of through holes. Optionally, the rotating shaft 71, the housing 72 and the ribs 73 of the rotor 70 are all integrally formed.

The rotor 70 is provided with two pairs of exhaust grooves 701, a pair of combustion chambers 702, and three pairs of blade installation grooves 703. Each pair of exhaust grooves 701, each pair of combustion chambers 702 and each pair of blade installation grooves 703 are symmetrically distributed on the rotor 70 opposite to each other. The side walls on both sides. That is, each pair of exhaust grooves 701, each pair of combustion chambers 702, and each pair of blade installation grooves 703 are separated by 180°. The three blade installation slots 703 located on the same side wall of the rotor 70 are distributed on the same horizontal line.

The rotor 70 is rotatably installed in the cavity formed by the heat engine cylinder 40, the pressure cylinder 50 and the collecting cylinder 60. The rotating shaft 71 penetrates the whole formed by the heat engine cylinder 40, the pressure cylinder 50 and the collecting cylinder 60; that is, the rotating shaft 71 penetrates The passage 402 of the superheater cylinder 40, the pressure cylinder 50 and the passage 602 of the collecting cylinder 60. The center K of the heat engine cylinder 40 and the two compression cylinders 50 and the center of the collecting cylinder 60 whose inner walls are all in the shape of Zelun circle are all located on the central axis of the rotating shaft 71; that is, the rotating shaft 71 passes through the center K of the heat engine cylinder 40, two The centers K of the individual cylinders 50 and the centers of the two cylinders 60 respectively. In addition, in order to ensure that the working medium in the heat engine cylinder 40 and the working medium in the pressure cylinder 50 will not circulate and mix together, the two pressure cylinders 50 are separated from each other by the partition 100 and the heat engine cylinder 40, and the center of the partition 100 has a radius. The circular channel 1001 is R1 so that the rotor 70 can pass through the partition 100. In this way, the rotor 70 can rotate in the cavity formed by the heat engine cylinder 40, the pressure cylinder 50 and the collecting cylinder 60. In the direction of rotation of the rotor 70, the three blade mounting grooves 703 on the same side wall are located in front of the combustion chamber 702 on the same side wall, and the two exhaust grooves 701 on the same side wall are located on three sides of the same side wall. Front of the blade installation groove 703.

The blade assembly 80 has a plate shape as a whole, and the two ends of the blade assembly 80 respectively have blade portions 81 separated by three stages. The blade assembly 80 is radially slidably installed on the rotor 70 and penetrates the shaft 71 of the rotor 70. The blade portions 81 at both ends of the blade assembly 80 are respectively inserted into the blade installation grooves 703 on the opposite side walls of the rotor 70. The three blade portions 81 are respectively inserted into the three blade installation grooves 703 on the same side wall of the rotor 70 in a one-to-one correspondence.

Specifically, the blade assembly 80 includes two E-shaped connecting plates 82 and two parallel strip-shaped plates 83. One end of each strip plate 83 is connected to one of the connecting plates 82, and the other end of each strip plate 83 is connected to the other connecting plate 82. In other words, the two strip-shaped plates 83 are both connected between the two E-shaped connecting plates 82. The end of the E-shaped connecting plate 82 away from the strip plate 83 forms three blade portions 81. Among the three-stage blade parts 81 at each end of the blade assembly 80, the middle blade part 81 extends into the heat engine cylinder 40 and is used for the heat engine blade, while the blade parts 81 located on both sides of the heat engine blade extend into the two pressure cylinders 50 respectively. And used as compressor blades. A part of each exhaust groove 701 is located in the collecting cylinder 60 and the other part is located in the pressure cylinder 50, that is, the exhaust groove 701 is in communication with the collecting cylinder 60 and the pressure cylinder 50.

As shown in Figures 11 and 12, the rotor 70 and the blade assembly 80 are integrally installed in the cavity formed by the heat engine cylinder 40, the pressure cylinder 50, and the air collector 60, and the rotating shaft 71 passes through the passage 402 of the heat engine cylinder 40, The passage 602 of the pressure cylinder 50 and the collecting cylinder 60, that is, the rotating shaft 71 penetrates the whole formed by the heat engine cylinder 40, the pressure cylinder 50 and the collecting cylinder 60. The entire rotor 70 is sequentially divided into 7 zones Z1, Z2, Z3, Z4, Z5, Z6, Z7 from one end to the other along the rotating shaft 71. The parts of the rotor 70 corresponding to the Z1 and Z7 areas are respectively located in the two collecting cylinders 60, and the parts of the rotor 70 corresponding to the Z2 and Z6 areas are located in the two pressure cylinders 50, respectively. A part of each exhaust groove 701 is located in the Z1 or Z7 area, and another part of each exhaust groove 701 is located in the Z2 or Z6 area. The parts of the rotor 70 corresponding to the Z3 and Z5 areas correspond to the positions of the two partitions 100 for separating the pressure cylinder 50 and the heat engine cylinder 40 respectively, and the parts of the rotor 70 corresponding to the Z4 area are located in the heat engine cylinder 40.

The length of the blade assembly 80 is the sum of R1 and R2. Therefore, as the rotor 70 rotates to drive the blade assembly 80 to rotate, the heat engine blades and compressor blades (ie, the blade portion 81) at both ends of the blade assembly 80 correspond to the shape of the Zelen circle. Due to the restriction of the inner wall of the heat engine cylinder 40 and the pressure cylinder 50, the entire blade assembly 80 slides along the radial direction of the rotor 70 while rotating. In this way, the space formed between each of the heat engine cylinder 40 and the pressure cylinder 50 and the rotor 70 is divided into three sub-spaces by the blade assembly 80, and the size of the three sub-spaces periodically changes with the rotation of the blade assembly 80.

Due to the high temperature and high pressure environment in the heat engine cylinder 40, the lubrication between the heat engine blades and the heat engine cylinder 40 is difficult. Therefore, in comparison, the environment in the pressure cylinder 50 is suitable for lubrication. Therefore, the present invention adopts a method in which a heat engine blade and two compressor blades (that is, three blade portions 81) are fixed to form the blade assembly 80 as a whole. Lubricant is added to the cylinder 50 to reduce the friction between each blade and the corresponding cylinder.

The engine 2 also includes components such as a gas collector and an end cover, and a bearing seat and a bearing are arranged in the center of the end cover.

When the engine 2 is running, as shown in FIG. 13, the air first enters the two pressure cylinders 50 from the two intake ports 503 and is compressed as the blade assembly 80 rotates. In this process, the cavity formed by the inner surface of the compressor cylinder 50, the outer wall of the rotor 70, the end cover, and the partition 100 for separating the compressor cylinder 50 and the heat engine cylinder 40 together is equivalent to the cylinder cavity of the compressor. The compressor blade (namely, the blade part 81) is divided into two

parts

504 and 505, and the part of the cavity 504 close to the air inlet 503 is a negative pressure zone, and fresh air can be sucked in. The other part of the cavity 505 is the air compression zone. When the rotor 70 does not rotate to the position where the exhaust groove 703 and the gas collecting cavity 603 are connected, the exhaust groove 703 and the gas collecting cavity 603 of the collecting cylinder 60 are not connected, and the gas collecting cavity 603 is sealed by the outer wall of the rotor 70. The 505 is closed, allowing the air to be compressed.

When the rotor 70 rotates to the position where the exhaust groove 703 communicates with the air collecting cavity 603, the part of the exhaust groove 703 located in the collecting cylinder 60 communicates with the collecting cavity 603. As shown in FIG. 14, the compressed air enters the collecting cavity. The air collection cavity 603 of the cylinder 60. As the rotor 70 continues to rotate, the exhaust groove 703 leaves the position of the air collecting cavity 603, and the air collecting cavity 603 is sealed by the outer wall of the rotor 70. There is still unexhausted compressed air in the exhaust groove 703. In order to reduce this part of the gas surplus, the volume of the exhaust groove 703 can be reduced as much as possible under the premise of satisfying the exhaust flow. The fuel injection nozzle 421 injects fuel into the high-pressure gas chamber 42 as required, such as gaseous fuels such as natural gas and hydrogen, and alcohol fuels such as ethanol. The air in the air collecting cavity 603 enters the high pressure air chamber 42 through the high pressure air pipe 90 and is mixed with the fuel sprayed from the fuel injection nozzle 421 to become a high pressure oil and gas mixture.

As shown in FIG. 15, when the rotor 70 rotates until the combustion chamber 702 and the gas distribution groove 4201 are connected, the high-pressure oil and gas mixture enters and quickly fills the combustion chamber 702.

As the rotor 70 continues to rotate, the combustion chamber 702 leaves the position of the air distribution groove 4201, the air distribution groove 4201 is sealed by the outer wall of the rotor 70, and the air distribution ends. As shown in Figure 16, when the 70 rotor rotates to the position of the combustion chamber 702 at the cremation plug 41, the high-pressure mixed oil and gas are ignited and expanded in the heat engine cylinder 40, thereby generating a pressure difference on both sides of the heat engine blades and pushing the rotor 70 to rotate. It outputs kinetic energy and provides rotational power for the compressor. The rotational kinetic energy required by the compressor comes from the feedback of the rotational kinetic energy output by the heat engine. The combusted exhaust gas is discharged through the exhaust port 403 of the heat engine cylinder 40, and the compressed air in the compressor cylinder 50 starts to compress air again and enters the next working cycle. When the width H1 of the heat engine cylinder 40 is greater than the sum of the widths 2H2 of the two pressure cylinders 50, the expansion ratio of the engine 1 is greater than the compression ratio. The engine 2 can output a torque of 180+∠α/2 degrees outwards with a single work, and has a simple structure and high thermal efficiency.

Those skilled in the art should understand that the above description and the embodiments of the present invention shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been completely and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any deformation and modification.

Claims

A cavity in the shape of a Zelun circle, characterized in that the inside of the cavity has a cavity in the shape of a Zelun circle, wherein the Zelun circle is connected end to end by two arcs with equal arcs and two curves in turn The circle centers of the two arcs overlap and the circle centers are denoted as K. The two arcs are distributed relative to each other. The radii of the two arcs are R1 and R2 respectively, and R1<R2, and R1<R2. The opposite end points of the arcs on the same side are connected by the curve, so that the two curves are connected between the two arcs, any one passing through the center K and intersecting the Zelun circle The distance between the points is the sum of R1 and R2.
The cavity according to claim 1, wherein the cavity is a cylinder.
A fluid working device is characterized in that it comprises:

The cavity according to claim 1, wherein the zelun-shaped cavity in the cavity serves as a fluid working cavity and is provided with an inlet and an outlet;

The rotor is rotatably installed inside the cavity, the rotor is circular and has a radius of R1, the center of the rotor coincides with the center K, and the rotor is provided with a radial sliding groove penetrating the center K ；

The blade is slidably installed in the chute of the rotor, and the length of the blade is equal to the sum of R1 and R2; the working medium enters the cavity from the inlet and is discharged from the outlet, and the rotor surrounds The center K rotates and drives the blade to rotate, and both ends of the blade are restricted by the inner wall of the cavity, so that the blade slides along the chute while rotating, and the cavity and the rotor are The space formed therebetween is divided into three sub-spaces by the blades, and the size of the three sub-spaces periodically changes with the rotation of the blades, so that the pressure of the working medium is periodically increased or decreased accordingly.
The fluid working device according to claim 3, wherein the fluid working device is one of a gas collector, a compressor, a heat engine, an engine, an internal combustion engine, a gas engine, a pneumatic motor, a steam turbine, a water turbine, or a pump , The cavity is a cylinder, a volute or a pump housing.
An engine characterized by comprising:

The heat engine cylinder is an annular shell with a cavity structure according to claim 1, and the inside of the heat engine cylinder has a cavity in the shape of a round circle. The center of the heat engine cylinder has a channel, and the side of the heat engine cylinder The wall is provided with an exhaust port and a spark plug. The outer wall of the heat engine cylinder is provided with a high-pressure air chamber. Air distribution groove connected to the cavity;

The two pressure cylinders are both annular shells with a cavity structure according to claim 1, and the inside of the pressure cylinder has a cavity in the shape of a round circle. The center of the pressure cylinder has a passage, and two The pressure cylinders are respectively connected to two opposite sides of the heat engine cylinder, and both of the pressure cylinders are provided with air inlets;

The two cylinders are both circular shells and have a channel in the center. The cylinders are respectively integrally joined to the side walls of the two pressure cylinders in a one-to-one correspondence, the heat engine cylinder, the pressure cylinder, and The gas collecting cylinders are fixed side by side, and one side of the gas collecting cylinder is provided with an air collecting cavity, and the gas collecting cavity is communicated with the high pressure air chamber through a high pressure air pipe;

The rotor is circular and has a radius of R1. The center of the rotor has a rotating shaft. The rotor is provided with two pairs of exhaust grooves, a pair of combustion chambers, and three pairs of blade installation grooves. The combustion chamber and each pair of blade mounting slots are symmetrically distributed on opposite side walls of the rotor, and the three blade mounting slots on the same side wall of the rotor are distributed on the same horizontal line. The rotor is rotatably installed in the cavity formed by the heat engine cylinder, the pressure cylinder and the collecting cylinder. The rotating shaft penetrates the heat engine cylinder, the pressure cylinder and the collecting cylinder. The center K of the heat engine cylinder and the pressure cylinder and the center of the collecting cylinder are located on the central axis of the rotating shaft. In the direction of rotation of the rotor, the center of the same side wall The three blade installation grooves are located in front of the combustion chamber on the same side wall, and the two exhaust grooves on the same side wall are located in front of the three blade installation grooves on the same side wall. A part of the exhaust groove is located in the collecting cylinder and another part is located in the pressure cylinder;

The blade assembly has a plate shape as a whole and has three-stage spaced blade portions at both ends. The blade assembly is slidably mounted on the rotor and penetrates the shaft of the rotor. The blades at both ends of the blade assembly The parts are respectively inserted into the blade installation grooves on the opposite side walls of the rotor, and the three blade parts at each end are respectively inserted into the three blade installation grooves on the same side wall of the rotor in a one-to-one correspondence manner. Among the three blade portions at each end, the blade portion located in the middle extends into the heat engine cylinder and serves as a heat engine blade, while the blade portions located on both sides of the heat engine blade are respectively extended into two pressure cylinders and used As a compressor blade, the length of the blade assembly is the sum of R1 and R2, and the two compressor cylinders are separated from each other by a partition plate and the heat engine cylinder;

As the rotation of the rotor drives the blade assembly to rotate, the heat engine blades and the compressor blades at the two ends of the blade assembly are restricted by the inner walls of the heat engine cylinder and the pressure cylinder in the shape of Zelun, so that the entire blade The assembly slides along the radial direction of the rotor. The space formed between each of the heat engine cylinder and the pressure cylinder and the rotor is divided into three sub-spaces by the blade assembly, and the size of the three sub-spaces varies with The rotation of the blade assembly changes periodically.
The engine according to claim 5, wherein the blade assembly includes two E-shaped connecting plates and two parallel strip-shaped plates, and the two strip-shaped plates are both connected to two E-shaped connecting plates. Between the connecting plates, the ends of the E-shaped connecting plates form three blade parts.
The engine according to claim 5, wherein the interior of the rotor is hollow, and the rotating shaft is connected to the side wall of the rotor through a plurality of ribs.
The engine according to any one of claims 5-7, wherein the width of the heat engine cylinder is greater than the sum of the widths of the two pressure cylinders.
A working fluid device is characterized by comprising:

A cavity, the inner wall contour of the cavity includes a circular arc with a radius of R1, the center of the arc of the cavity is K, the cavity serves as a fluid working cavity and is provided with an inlet and an outlet;

Rotor, the rotor is circular and has a radius of R1, the rotor is installed in the cavity, and the center of the rotor coincides with the center K, so that the arc of the cavity and the radius of the rotor A part of them overlaps, the space formed by the cavity and the rotor becomes a discontinuous space, and the rotor is provided with radial sliding grooves;

The blade is slidably installed in the chute of the rotor; the working medium enters the cavity from the inlet and is discharged from the outlet. The rotor rotates around the center K and drives the blade to rotate. Both ends of the vane are restricted by the inner wall of the cavity, so that the vane slides along the sliding groove while rotating, and the space formed between the cavity and the rotor is divided into three parts by the vane Space, the size of the three sub-spaces periodically changes with the rotation of the blades, so that the pressure of the working medium is periodically increased or decreased accordingly.