An engine system and a rotary slippage engine thereof

Abstract

The utility model relates to an engine system and rotor sliding vane engine thereof, and the rotor sliding vane engine includes the casing, and the inside of casing has the chamber, and the cross section of the inside wall of chamber is smooth transition everywhere, and the casing is equipped with air inlet, high pressure air outlet, high pressure gas inlet and waste gas outlet, and the rotor coaxially is provided with the rotating shaft, and the rotor is equipped with a plurality of sliding slots, and each sliding slot is spaced and is uniformly distributed around the circumference of rotor, and each sliding piece is slidably inserted in the sliding slot along the radial direction, and each sliding piece does centrifugal motion around the rotor, and the chamber and rotor form at least two working chambers, and each working chamber is smooth transition's variable diameter chamber, and the inner chamber of each working chamber gradually increases and then gradually reduces, and the high pressure air outlet and high pressure gas inlet have the connecting structure for external connection combustion chamber. Simple structure, convenient control, strong applicability can adapt to the structural requirement of different types of combustion chamber.

Description

Technical Field

[0001] This utility model relates to the field of engine equipment technology, and in particular to an engine system and its rotor vane engine. Background Technology

[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc.

[0003] The engines currently in use are primarily piston engines with a small number of rotary engines. A significant problem with rotary engines is poor combustion chamber sealing. The seals wear easily, and the rotor is difficult to cool. Piston engines work by the piston reciprocating linearly within the cylinder, which is then converted into rotary motion. This conversion requires a crankshaft and connecting rod mechanism. Conventional piston engines and rotary engines have relatively complex overall structures, requiring additional components such as valve train mechanisms. Utility Model Content

[0004] The purpose of this utility model is to provide an engine system to solve the problems of complex engine structure and poor applicability in the prior art; the purpose of this utility model is also to provide a rotor vane engine of the engine system.

[0005] To solve the above problems, the rotary vane engine involved in this utility model adopts the following technical solution:

[0006] A rotary vane engine includes a housing with a longitudinally extending chamber inside. The cross-sectional outline of the inner wall of the chamber is smoothly transitioned. An air inlet, a high-pressure air outlet, a high-pressure gas inlet, and an exhaust gas outlet are respectively provided on the housing along the outline of the chamber, communicating with the chamber. A rotor is coaxially mounted with a longitudinally extending rotating shaft. The rotor is rotatably mounted in the chamber about the axis of the rotating shaft. At least one end of the rotating shaft extends out of the housing to form an output end. Multiple grooves extending radially inward are provided on the outer cylindrical surface of the rotor, and the grooves are evenly spaced around the circumference of the rotor. Multiple vanes are provided, each vane being radially slidably inserted into one of the grooves. When a vane extends out of the groove, its longitudinal sides are in close contact with the longitudinal sides of the chamber. Sidewalls; each sliding vane can perform centrifugal motion while rotating with the rotor, causing the outer end of the vane to abut against the inner sidewall of the chamber; the chamber and the rotor together form at least two working chambers, each working chamber being a smoothly transitioning variable-diameter chamber, the radial width of the inner cavity of each working chamber gradually increases and then gradually decreases along the rotation direction of the rotor, at least one working chamber has its first end connected to the air inlet and its last end connected to the high-pressure air outlet, at least one working chamber has its first end connected to the high-pressure gas inlet and its last end connected to the exhaust gas outlet; the high-pressure air outlet and the high-pressure gas inlet are connected externally to the engine via a connection structure for connecting to an external combustion chamber, the high-pressure gas generated by the combustion of fuel enters the corresponding chamber through the high-pressure gas inlet and pushes the sliding vane to do work and rotate towards the exhaust gas outlet side.

[0007] In a preferred embodiment, the cross-section of the inner wall of the chamber includes at least two arc-shaped contour segments arranged at intervals, and smooth protrusion segments arranged between the arc-shaped contour segments and protruding inward. The protrusion apex of each smooth protrusion segment is located on the same circular contour line, and the space between two adjacent smooth protrusion segments in the chamber constitutes the working cavity.

[0008] In a preferred embodiment, the two sidewalls of the smooth protrusion section correspond to the extension and retraction of the slider, respectively forming a slider extension section and a slider retraction section; the slope of the slider extension section is greater than the slope of the slider retraction section.

[0009] In a preferred embodiment, an air inlet and an exhaust outlet are respectively provided on both sides of the apex of one smooth protrusion, and a high-pressure air outlet and a high-pressure gas inlet are respectively provided on both sides of the apex of the other smooth protrusion. The air inlet and the high-pressure air outlet are located at both ends of the same working chamber, and the high-pressure gas inlet and the exhaust outlet are located at both ends of another working chamber.

[0010] In a preferred embodiment, there are three or more smooth protrusions, evenly distributed around the circumference of the chamber, and each of two adjacent smooth protrusions encloses the working chamber; there are two or more air inlets and high-pressure air outlets, one of the working chambers is provided with a high-pressure gas inlet and an exhaust gas outlet at both ends, and the other working chambers are provided with an air inlet and a high-pressure air outlet at both ends, and each high-pressure air outlet is connected in parallel to the connecting structure.

[0011] In a preferred embodiment, there are three smooth protrusions, with each pair of adjacent smooth protrusions forming a working chamber. There are two air inlets and two high-pressure air outlets, defined as a first air inlet and a second air inlet, a first high-pressure air outlet and a second high-pressure air outlet, respectively. The first air inlet and the exhaust outlet are respectively located on both sides of the first smooth protrusion, the first high-pressure air outlet and the second air inlet are located on both sides of the second smooth protrusion, and the second high-pressure air outlet and the high-pressure gas inlet are located on both sides of the third smooth protrusion. The first air inlet and the first high-pressure air outlet are located at both ends of the first working chamber, the second air inlet and the second high-pressure air outlet are located at both ends of the second working chamber, and the high-pressure gas inlet and the exhaust outlet are located at both ends of the third working chamber.

[0012] In a preferred embodiment, the maximum difference between the radius of the arc-shaped profile segment of the chamber and the radius of the rotor is not greater than half the length of the slide, so that when the slide is in its maximum extended state, the length of the slide within the groove is greater than the length outside the groove.

[0013] In a preferred embodiment, the housing includes a longitudinally extending cavity, with end caps sealing both ends of the cavity. The opposite sidewalls of the two end caps form the longitudinal sidewalls of the cavity. A shaft hole is provided on the end cap, and a bearing that cooperates with the rotating shaft is assembled in the shaft hole.

[0014] In a preferred embodiment, a circular concave step is provided at the center of the inner sidewall of the end cap. The diameter of the step of the two end caps is smaller than the diameter of the circular outline of the apex of the smooth protrusion of the chamber. The distance between the steps of the two end caps in the depth direction is consistent with the longitudinal dimension of the rotor. The distance between the inner sidewalls of the two end caps is consistent with the longitudinal dimension of the slide plate.

[0015] The engine system involved in this utility model adopts the following technical solution:

[0016] The engine system includes an engine, a combustion chamber, and a one-way valve. The combustion chamber is equipped with a fuel injector and a spark plug, and has an air inlet and an exhaust outlet. The air inlet communicates with the high-pressure air outlet, and the exhaust outlet communicates with the high-pressure gas inlet. The one-way valve is located at the high-pressure air outlet. The engine includes a housing with a longitudinally extending chamber inside. The cross-sectional outline of the inner wall of the chamber is smoothly transitioned. An air inlet, a high-pressure air outlet, a high-pressure gas inlet, and an exhaust gas outlet communicating with the chamber are respectively provided on the housing along the outline of the chamber. A rotor is coaxially mounted with a longitudinally extending rotating shaft. The rotor is rotatably mounted in the chamber around the axis of the rotating shaft. At least one end of the rotating shaft extends out of the housing to form an output end. Multiple radially inwardly extending grooves are provided on the outer cylindrical surface of the rotor, and these grooves are evenly distributed circumferentially around the rotor. Multiple vanes are also included. Each slide is slidably inserted into one of the slots radially; when the slide extends out of the slot, the longitudinal sides of the slide are in close contact with the longitudinal sidewalls of the chamber; each slide can perform centrifugal motion while rotating with the rotor, so that the outer end of the slide abuts against the inner sidewall of the chamber; the chamber and the rotor together form at least two working chambers, each working chamber is a smoothly transitioning variable diameter chamber, and the radial width of the inner cavity of each working chamber gradually increases and then gradually decreases along the direction of rotor rotation, wherein at least one working chamber has its first end connected to the air inlet and its last end connected to the high-pressure air outlet, and at least one working chamber has its first end connected to the high-pressure gas inlet and its last end connected to the exhaust gas outlet; the high-pressure air outlet and the high-pressure gas inlet are connected to an external combustion chamber outside the engine, and the high-pressure gas generated by the combustion of fuel enters the corresponding chamber through the high-pressure gas inlet, pushes the slide to do work and rotates towards the exhaust gas outlet side.

[0017] In a preferred embodiment, the cross-section of the inner wall of the chamber includes at least two arc-shaped contour segments arranged at intervals, and smooth protrusion segments arranged between the arc-shaped contour segments and protruding inward. The protrusion apex of each smooth protrusion segment is located on the same circular contour line, and the space between two adjacent smooth protrusion segments in the chamber constitutes the working cavity.

[0018] In a preferred embodiment, the two sidewalls of the smooth protrusion section correspond to the extension and retraction of the slider, respectively forming a slider extension section and a slider retraction section; the slope of the slider extension section is greater than the slope of the slider retraction section.

[0019] In a preferred embodiment, an air inlet and an exhaust outlet are respectively provided on both sides of the apex of one smooth protrusion, and a high-pressure air outlet and a high-pressure gas inlet are respectively provided on both sides of the apex of the other smooth protrusion. The air inlet and the high-pressure air outlet are located at both ends of the same working chamber, and the high-pressure gas inlet and the exhaust outlet are located at both ends of another working chamber.

[0020] In a preferred embodiment, there are three or more smooth protrusions, evenly distributed around the circumference of the chamber, and each of two adjacent smooth protrusions encloses the working chamber; there are two or more air inlets and high-pressure air outlets, one of the working chambers is provided with a high-pressure gas inlet and an exhaust gas outlet at both ends, and the other working chambers are provided with an air inlet and a high-pressure air outlet at both ends, and each high-pressure air outlet is connected in parallel to the connecting structure.

[0021] In a preferred embodiment, there are three smooth protrusions, with each pair of adjacent smooth protrusions forming a working chamber. There are two air inlets and two high-pressure air outlets, defined as a first air inlet and a second air inlet, a first high-pressure air outlet and a second high-pressure air outlet, respectively. The first air inlet and the exhaust outlet are respectively located on both sides of the first smooth protrusion, the first high-pressure air outlet and the second air inlet are located on both sides of the second smooth protrusion, and the second high-pressure air outlet and the high-pressure gas inlet are located on both sides of the third smooth protrusion. The first air inlet and the first high-pressure air outlet are located at both ends of the first working chamber, the second air inlet and the second high-pressure air outlet are located at both ends of the second working chamber, and the high-pressure gas inlet and the exhaust outlet are located at both ends of the third working chamber.

[0022] In a preferred embodiment, the maximum difference between the radius of the arc-shaped profile segment of the chamber and the radius of the rotor is not greater than half the length of the slide, so that when the slide is in its maximum extended state, the length of the slide within the groove is greater than the length outside the groove.

[0023] In a preferred embodiment, the housing includes a longitudinally extending cavity, with end caps sealing both ends of the cavity. The opposite sidewalls of the two end caps form the longitudinal sidewalls of the cavity. A shaft hole is provided on the end cap, and a bearing that cooperates with the rotating shaft is assembled in the shaft hole.

[0024] In a preferred embodiment, a circular concave step is provided at the center of the inner sidewall of the end cap. The diameter of the step of the two end caps is smaller than the diameter of the circular outline of the apex of the smooth protrusion of the chamber. The distance between the steps of the two end caps in the depth direction is consistent with the longitudinal dimension of the rotor. The distance between the inner sidewalls of the two end caps is consistent with the longitudinal dimension of the slide plate.

[0025] In a preferred embodiment, a silencer is connected to the exhaust gas outlet.

[0026] The beneficial effects of this utility model are as follows: Compared with the prior art, the engine system involved in this utility model adopts a variable-diameter chamber with a smooth transition between the housing and the rotor. The variable-diameter structure of the chamber enables gas intake, compression, supply to the combustion chamber, combustion, entry into another chamber for power generation, and emission. Oil and gas are mixed in the external combustion chamber, and the high-pressure gas generated by the combustion of the oil-gas mixture is reintroduced into the chamber, converting it into driving torque for rotation. It eliminates the need for a crankshaft and intermittently moving valves, resulting in a simpler structure. Simultaneously, the high-temperature combustion process is external to the housing, greatly reducing the high-temperature resistance requirements of the housing. Furthermore, this structural form is simple, easy to control, and highly adaptable, capable of meeting the structural requirements of different types of combustion chambers. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below:

[0028] Figure 1 This is a schematic diagram of a specific embodiment of the engine system of this utility model;

[0029] Figure 2 for Figure 1 A schematic diagram of the engine structure;

[0030] Figure 3 for Figure 2 A cross-sectional view;

[0031] Figure 4 for Figure 3 Longitudinal sectional view in the middle;

[0032] Figure 5 for Figure 3 Exploded structural diagrams of various components;

[0033] Figure 6 for Figure 5 A schematic diagram of the cavity structure;

[0034] Figure 7 for Figure 5 Schematic diagram of the assembly structure of the rotor and vanes;

[0035] Figure 8 for Figure 1 A schematic diagram of the various working states of the engine system.

[0036] Explanation of reference numerals in the attached drawings: 1-Shell; 11-Cavity; 111-Air inlet; 1111-First air inlet; 1112-Second air inlet; 112-High-pressure air outlet; 1121-First high-pressure air outlet; 1122-Second high-pressure air outlet; 113-High-pressure gas inlet; 114-Exhaust gas outlet;

[0037] 12-End cap; 121-Shaft hole; 122-Step; 123-Bearing;

[0038] 13-Cavity; 131-Arc-shaped contour segment; 132-Smooth protrusion segment; 1321-First protrusion segment; 1322-Second protrusion segment; 1323-Third protrusion segment; 134-Circular contour line;

[0039] 14-Working chamber; 141-First working chamber; 142-Second working chamber; 143-Third working chamber;

[0040] 2-Rotor; 21-Slide groove;

[0041] 3-Rotary shaft; 31-Keyway; 32-Straight key; 33-Shaft end retaining ring;

[0042] 4-Sliding plate; 5-Flange connection structure;

[0043] 6-Combustion chamber; 61-Intake port; 62-Exhaust port;

[0044] 7-Check valve; 8-Silencer. Detailed Implementation

[0045] Specific embodiments of the engine system involved in this utility model are as follows: Figures 1 to 8 As shown, the engine system includes components such as an engine, a combustion chamber 6, and a one-way valve 7.

[0046] The name of the engine is not a basic definition of all engine components in this field. Its main function is to supply air, compress, perform power, exhaust, etc., in addition to combustion.

[0047] The engine in this embodiment is a rotary vane engine. Unlike the spark plug ignition and combustion method of ordinary rotary vane engines, it uses an external combustion chamber 6 to achieve operation. The structure of this engine is more similar to a turbine structure that combines gas compression and driving torque output.

[0048] Specifically, the engine includes a housing 1, which includes a longitudinally extending cavity 11. The cavity 11 has a longitudinally extending and cylindrically arranged chamber 13 inside. The outline of the transverse section of the inner sidewall of the chamber 13 is smoothly transitioned everywhere. An air inlet 111, a high-pressure air outlet 112, a high-pressure gas inlet 113, and an exhaust gas outlet 114 communicating with the chamber 13 are respectively provided on the housing 1 along the extension path of the outline of the chamber 13.

[0049] Meanwhile, in order to achieve the enclosure assembly of the chamber 13, in this embodiment, the shell 1 includes a longitudinally extending cavity 11, and end caps 12 are sealed at both ends of the longitudinal direction of the cavity 11. The two end caps 12 and the cavity 11 enclose the shell 1 to form the shell 1, and the end caps 12 and the end faces of the cavity 11 are sealed together by a flange connection structure 5. The opposite side walls of the two end caps 12 constitute the longitudinal side walls of the chamber 13.

[0050] The engine also includes a rotor 2, which is coaxially mounted with a rotating shaft 3 extending front to rear. Specifically, a keyway 31 is provided between the inner hole of the rotor 2 and the outer wall of the rotating shaft 3, and a straight key 32 is used to achieve anti-rotation assembly between the two. When the rotor 2 rotates, it drives the rotating shaft 3 to rotate synchronously. At the same time, a stepped surface is provided on one longitudinal side of the rotating shaft 3, and a shaft end retaining ring 33 is fitted on the other side to limit the axial movement of the rotor 2 on the rotating shaft 3. In order to support the rotating shaft 3, a shaft hole 121 is provided at the center position of each of the two end caps 12, and a bearing 123 that mates with the rotating shaft 3 is installed in the shaft hole 121. Both ends of the rotating shaft 3 extend out of the end caps 12, and at least one end forms an output end that outputs torque outward.

[0051] The outer wall of the rotor 2 is provided with four sliding grooves 21 extending radially inward and outward along the rotor 2. The sliding grooves 21 are rectangular grooves, and each sliding groove 21 is evenly distributed around the circumference of the rotor 2. A sliding piece 4 is guided and slidably inserted in each sliding groove 21. The sliding piece 4 is a rectangular plate structure. When the sliding piece 4 is retracted into the sliding groove 21, the outer end of the sliding piece 4 is flush with the outer circumferential surface of the rotor 2, or the outer end of the sliding piece 4 does not exceed the outer circumferential surface of the rotor 2. When the sliding piece 4 is extended out of the sliding groove 21, the outer end of the sliding piece 4 can abut against the inner wall of the chamber 13 and reciprocate radially within the sliding groove 21 along the smooth transition contour line of the inner wall of the chamber 13.

[0052] To ensure smooth movement and reliable sealing, when the slide plate 4 extends out of the slide groove 21, its longitudinal sides are tightly against the longitudinal sidewalls of the chamber 13. Specifically, the inner sidewalls of the two end caps 12 have outwardly protruding steps 122 at their center positions. The diameter of the steps 122 of the two end caps 12 is smaller than the size of the circular outline of the apex of the smooth protrusion of the chamber 13. The depth distance between the steps 122 of the two end caps 12 is consistent with the axial length of the rotor 2, and the distance between the sidewalls of the two end caps 12 is consistent with the longitudinal dimension of the slide plate 4. In actual operation, the front and rear ends of the rotor 2 are tightly fitted with the inner bottom surface of the steps 122 of the end caps 12, while the front and rear ends of the slide plate 4 are tightly fitted with the inner end face of the end caps 12.

[0053] When the rotor 2 rotates, each of the aforementioned sliding vanes 4 undergoes centrifugal motion within the sliding groove 21, extending outwards. Simultaneously, due to the smooth transition of the cross-sectional contour of the chamber 13, the sliding vanes 4 can always be tightly fitted to the inner wall of the chamber 13 during the extension process. The extension process is continuous and smooth, without vibration or impact issues.

[0054] The aforementioned chamber 13 and rotor 2 together form three working chambers 14. Each working chamber is a smoothly transitioning variable diameter chamber. The inner width of each working chamber gradually increases and then gradually decreases along the rotation direction of the rotor. At least one working chamber has its first end connected to the air inlet and its last end connected to the high-pressure air outlet. At least one working chamber has its first end connected to the high-pressure gas inlet and its last end connected to the exhaust gas outlet.

[0055] Specifically, the cross-section of the inner wall of chamber 13 includes at least two arc-shaped contour segments 131 arranged at intervals, and smooth protruding segments 132 arranged between the arc-shaped contour segments 131 and protruding inward. The protruding apex of each smooth protruding segment 132 is located on the same circular contour line 133. The space between two adjacent smooth protruding segments 132 in the chamber constitutes the working cavity 14. The outer diameter of the rotor 2 is consistent with the diameter of the circular contour line 133 of the chamber 13.

[0056] The centerline of rotor 2 is aligned with the centerline of chamber 13, allowing the outer side of rotor 2 to be enclosed by two adjacent smooth protrusions 132 to form three independent working chambers 14. Each working chamber 14 is a smoothly transitioning variable-diameter chamber, meaning that the inner width of each working chamber 14 gradually increases and then gradually decreases along the rotation direction of rotor 2. Taking one working chamber 14 as an example, starting from the apex of the smooth protrusion 132 located upstream in the rotation direction of rotor 2, it gradually moves towards the apex of another smooth protrusion 132 along the rotation direction of rotor 2. During this process, the inner width of working chamber 14 gradually expands until it reaches the middle position of working chamber 14. It continues to move towards the apex of another smooth protrusion 132. During this process, the inner width of working chamber 14 gradually decreases until it reaches the apex position of a smooth protrusion 132.

[0057] In this embodiment, the two sidewalls of the smooth protrusion section correspond to the extension and retraction of the slide vane, respectively constituting the slide vane extension section and the slide vane retraction section; the slope of the slide vane extension section is greater than the slope of the slide vane retraction section. As shown in the figure, the rotor rotation direction is defined as counterclockwise. The curve of the inner wall of the housing (i.e., one sidewall of the smooth protrusion section) corresponding to the air intake position of each chamber (such as air inlet and high-pressure gas inlet) should be steeper, while the curve of the inner wall of the housing (i.e., the other sidewall of the smooth protrusion section) corresponding to the air outlet position of each chamber (such as high-pressure air outlet and exhaust gas outlet) should be gentler.

[0058] This design is because the curve at the intake position corresponds to the stage where the vane extends outward from the rotor's groove. A steeper curve ensures that the vane quickly reaches its extension limit, allowing it to be fully engaged in operation as early as possible. Conversely, the curve at the exhaust position represents the stage where the vane retracts from its maximum extension into the rotor's groove. If the inner wall curve is steep at this point, the thrust on the vane tip will be very large, potentially causing blade deformation or breakage. To ensure a good working environment for the vane, the slope of the side wall curve on the retracted side of the smooth protrusion section should be gentler, while the slope of the side wall curve on the extended side should be steeper.

[0059] In order to achieve the functions of air supply and exhaust, an air inlet 111 and an exhaust outlet 114 are respectively provided on both sides of the apex of one of the smooth protrusions 132, and a high-pressure air outlet 112 and a high-pressure gas inlet 113 are respectively provided on both sides of the apex of the other smooth protrusion 132. The air inlet 111 and the high-pressure air outlet 112 are located at both ends of the same working chamber, and the high-pressure gas inlet 113 and the exhaust outlet 114 are located at both ends of another working chamber.

[0060] Specifically, there are three smooth raised sections 132. Each pair of adjacent smooth raised sections 132 encloses and forms the working chamber 14. There are two air inlets 111 and two high-pressure air outlets 112, respectively defined as first air inlet 1111 and second air inlet 1112, first high-pressure air inlet 1121 and second high-pressure air outlet 1122. The first air inlet 1111 and exhaust gas outlet 114 are respectively located on both sides of the first smooth raised section 1321. The first high-pressure air outlet 1121 and second air inlet 1112 are respectively located on both sides of the second smooth raised section 1322. The second high-pressure air outlet 1122 and high-pressure gas inlet 113 are respectively located on both sides of the third smooth raised section 1323. The first air inlet 1111 and first high-pressure air outlet 1121 are located at both ends of the first working chamber 141. The second air inlet 1112 and second high-pressure air outlet 1122 are located at both ends of the second working chamber 142. The high-pressure gas inlet 113 and exhaust gas outlet 114 are located at both ends of the third working chamber.

[0061] The combustion chamber is supplied with fresh air by connecting two working chambers in parallel, that is, by connecting the first working chamber and the second working chamber in parallel. The purpose is to ensure that there is sufficient oxygen to assist combustion during the combustion process, so that the fuel can burn completely. If there is insufficient oxygen, the fuel cannot burn completely, and black smoke will appear in the exhaust gas.

[0062] Meanwhile, to drive the rotation of the vane 4, an external combustion chamber 6 is connected at the high-pressure air outlet 112 and the high-pressure gas inlet 113. After combustion, the high-pressure gas enters the corresponding working chamber through the high-pressure gas inlet 113, performs work on the rotor 2, and drives the rotor 2 to rotate. The combustion chamber 6 has a fuel injector and a spark plug. In this embodiment, the fuel injector is a high-pressure fuel atomizing nozzle, and it has an air inlet 61 and an exhaust outlet 62. The air inlet 61 is connected to the two high-pressure air outlets 112, and the exhaust outlet 62 is connected to the high-pressure gas inlet 113. A one-way valve 7 is arranged at the air inlet 61. At the same time, to reduce the noise of the exhaust gas, a muffler 8 is connected at the exhaust outlet 114.

[0063] Furthermore, the maximum difference between the radius of the arc-shaped profile segment 131 of the chamber 13 and the radius of the rotor 2 is no greater than half the length of the slide plate 4, so that when the slide plate 4 is in its maximum extended state, the length of the slide plate 4 within the groove 21 is greater than the length outside the groove 21. This ensures that the extension length of the slide plate 4 meets the requirements while also facilitating the smooth retraction of the slide plate 4, avoiding the problem of the slide plate 4 extending too far at the long axis point, resulting in unstable retraction.

[0064] Work process:

[0065] In actual operation, this engine system is basically the same as a conventional engine, and has the following five operating processes:

[0066] Taking one of the sliders, 4, as an example:

[0067] (1) Inhalation: When the rotor 2 rotates counterclockwise, in the initial posture: the rotor 2 rotates to the position where the corresponding slide plate 4 is located between the first air inlet 1111 and the exhaust outlet 114 of the first protrusion section 1321, and the slide plate 4 is retracted into the slide groove 21.

[0068] As the rotor 2 continues to rotate, the vane 4 gradually extends and passes through the first air inlet 1111, thereby widening the chamber 13 and drawing the chamber 13 between the vane 4 and the first air inlet 1111 into a negative pressure. Outside air is drawn in and enters the working chamber 14 on the left, thus realizing the air intake process.

[0069] (2) Compression: As the rotor 2 continues to rotate, the width of the chamber 13 between the slide plate 4 and the first high-pressure air outlet 1121 gradually decreases, and the slide plate 4 gradually retracts into the slide groove 21. At this time, the air between the two is compressed into high-pressure gas due to the shrinkage of the chamber 13, and is output to the outside at the first high-pressure air outlet 1121 on the second protrusion section 1322 that connects to the first working chamber 141, thus realizing the compression process.

[0070] (3) The intake and compression actions are repeated, and the rotor 2 continues to rotate. The vane swings into the second working chamber 142. At this time, the air in the second working chamber 142 is drawn into the second working chamber 142 through the second air inlet 1112 on the second protrusion section 1322, and the gas downstream of the second working chamber 142 is pushed out through the second high-pressure air outlet 1122 on the third protrusion section 1323. At the same time, the compressed air in the first working chamber 141 and the compressed air in the second working chamber 142 are connected in parallel and then introduced into the combustion chamber 6.

[0071] (4) Combustion: Compressed air is introduced into the combustion chamber 6 through the one-way valve 7. The compressed air is mixed with the mixed gas and ignited by the spark plug or other ignition structure in the combustion chamber 6. The gases formed after combustion, such as carbon dioxide, carbon monoxide, and water vapor, are introduced into the third working chamber 143 through the high-pressure gas inlet 113 on the third protrusion section 1323.

[0072] (4) Doing work: The high-pressure gas formed by combustion continuously enters the third working chamber 143 and pushes the slide plate 4 through the high-pressure gas inlet 113 to continue rotating. The slide plate 4 is pushed to drive the rotor 2 to continue rotating, and the rotor 2 drives the rotating shaft 3 to output torque outward.

[0073] (5) Exhaust: After the high-pressure gas pushes the slide plate 4 to the exhaust outlet 114 on the first protrusion section 1321, the gas can be discharged outward through the exhaust outlet 114 because the slide plate 4 will gradually retract into the slide groove 21.

[0074] In the above process, the combustion in combustion chamber 6 can be a mixture of gasoline and air, or a mixture of liquefied gas, natural gas and air, which has great versatility and applicability.

[0075] Meanwhile, in this embodiment, the gas entering the chamber 13 is air. In other embodiments, air can be mixed with gasoline and directly introduced into the chamber 13 to supply gas, which is then ignited and burned in the combustion chamber 6.

[0076] In other embodiments, the outline of the cross-section of the chamber 13 can be designed as other variable diameter chambers 13, such as rectangular chambers with corresponding chamfers at the corners; or it can be set as other irregular curved surface structures, without specific limitations.

[0077] In other embodiments, the number of smooth protrusions is not specifically limited. Those skilled in the art can arbitrarily increase or decrease them according to the actual gas supply pulse frequency. The corresponding air inlet and high-pressure gas outlet can also be increased or decreased according to actual needs.

[0078] Finally, it should be noted that the above embodiments are only for illustration and not for limiting the technical solutions of this utility model. Any equivalent substitutions and modifications or partial substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of protection of the claims of this utility model.

Claims

1. A rotary vane engine, characterized in that, include: The housing has a longitudinally extending chamber inside, and the outline of the cross-section of the inner sidewall of the chamber is smoothly transitioned everywhere. An air inlet, a high-pressure air outlet, a high-pressure gas inlet, and an exhaust gas outlet communicating with the chamber are respectively provided on the housing along the extension path of the outline of the chamber. The rotor is coaxially configured with a longitudinally extending rotating shaft. The rotor is rotatably mounted in the cavity around the axis of the rotating shaft. At least one end of the rotating shaft passes through the housing to form an output end. The outer cylindrical surface of the rotor is provided with a plurality of sliding grooves extending inward along the radial direction of the rotor. Each sliding groove is evenly distributed around the circumference of the rotor. Multiple sliding vanes, each of which is radially slidably inserted into one of the sliding grooves; when the sliding vane extends out of the sliding groove, its longitudinal sides are in close contact with the longitudinal sidewalls of the chamber; each sliding vane can perform centrifugal motion while following the rotor's rotation, so that the outer end of the sliding vane abuts against the inner sidewall of the chamber. The chamber and the rotor together form at least two working chambers. Each working chamber is a smoothly transitioning variable diameter chamber. The radial width of the inner cavity of each working chamber gradually increases and then gradually decreases along the rotation direction of the rotor. At least one working chamber has its first end connected to an air inlet and its last end connected to a high-pressure air outlet. At least one working chamber has its first end connected to a high-pressure gas inlet and its last end connected to an exhaust gas outlet. The high-pressure air outlet and the high-pressure gas inlet are connected externally to the engine via a connection structure for connecting to an external combustion chamber. After the high-pressure gas generated by the combustion of fuel enters the corresponding chamber through the high-pressure gas inlet, it pushes the vane to do work and rotates toward the exhaust gas outlet side.

2. The rotor vane engine according to claim 1, characterized in that, The cross-section of the inner wall of the chamber includes at least two arc-shaped contour segments arranged at intervals, and smooth protrusion segments arranged between the arc-shaped contour segments and protruding inward. The protrusion apex of each smooth protrusion segment is located on the same circular contour line, and the space between two adjacent smooth protrusion segments in the chamber constitutes the working cavity.

3. The rotary vane engine according to claim 2, characterized in that, The two side walls of the smooth protrusion section correspond to the extension and retraction of the slider, respectively forming the slider extension section and the slider retraction section; the slope of the slider extension section is greater than the slope of the slider retraction section.

4. The rotor vane engine according to claim 2, characterized in that, One of the smooth raised sections has an air inlet and an exhaust outlet on either side of the apex of the raised section, and the other smooth raised section has a high-pressure air outlet and a high-pressure gas inlet on either side of the apex of the raised section. The air inlet and the high-pressure air outlet are located at opposite ends of the same working chamber, and the high-pressure gas inlet and the exhaust outlet are located at opposite ends of another working chamber.

5. The rotor vane engine according to claim 2, characterized in that, There are three or more smooth protrusions, which are evenly distributed around the circumference of the chamber, and each of two adjacent smooth protrusions encloses the working chamber. There are two or more air inlets and high-pressure air outlets. One working chamber has a high-pressure gas inlet and an exhaust gas outlet at both ends, and the other working chambers have an air inlet and a high-pressure air outlet at both ends. Each high-pressure air outlet is connected in parallel to the connecting structure.

6. The rotor vane engine according to claim 4, characterized in that, There are three smooth protruding sections, and each pair of adjacent smooth protruding sections encloses a working chamber. There are two air inlets and two high-pressure air outlets, respectively defined as a first air inlet and a second air inlet, a first high-pressure air outlet and a second high-pressure air outlet. The first air inlet and the exhaust outlet are respectively located on both sides of the first smooth protruding section, the first high-pressure air outlet and the second air inlet are located on both sides of the second smooth protruding section, and the second high-pressure air outlet and the high-pressure gas inlet are located on both sides of the third smooth protruding section. The first air inlet and the first high-pressure air outlet are located at both ends of the first working chamber, the second air inlet and the second high-pressure air outlet are located at both ends of the second working chamber, and the high-pressure gas inlet and the exhaust outlet are located at both ends of the third working chamber.

7. The rotor vane engine according to claim 2, characterized in that, The maximum difference between the radius of the arc-shaped profile segment of the chamber and the radius of the rotor is no greater than half the length of the slide plate, so that when the slide plate is in its maximum extended state, the length of the slide plate inside the groove is greater than the length outside the groove.

8. The rotor vane engine according to claim 2, characterized in that, The housing includes a longitudinally extending cavity with end caps sealing both ends of the cavity. The opposite sidewalls of the two end caps form the longitudinal sidewalls of the cavity. A shaft hole is provided on the end cap, and a bearing that mates with the rotating shaft is assembled in the shaft hole.

9. The rotor vane engine according to claim 8, characterized in that, A circular recessed step is provided at the center of the inner sidewall of the end cap. The diameter of the step of the two end caps is smaller than the diameter of the circular outline of the apex of the smooth protrusion of the chamber. The distance between the steps of the two end caps in the depth direction is consistent with the longitudinal dimension of the rotor. The distance between the inner sidewalls of the two end caps is consistent with the longitudinal dimension of the slide plate.

10. An engine system, characterized in that, This includes the engine, combustion chamber, and one-way valve; The engine is the engine described in any one of claims 1-9. The combustion chamber is equipped with a fuel injector and a spark plug. The combustion chamber has an air inlet and an exhaust outlet. The air inlet is connected to the high-pressure air outlet, and the exhaust outlet is connected to the high-pressure gas inlet. The one-way valve is located at the high-pressure air outlet.

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