Reversing valve and double-rotor engine

Abstract

The embodiment of the invention provides a reversing valve and a double-rotor engine. The reversing valve is used for the double-rotor engine and comprises a shell and rotors. A first acting cylinder connecting port, a second acting cylinder connecting port, a first compression cylinder connecting port and a first cavity are formed in the shell, the first acting cylinder connecting port and the second acting cylinder connecting port are communicated with the first cavity, and the first acting cylinder connecting port, the second acting cylinder connecting port and the first compression cylinder connecting port are used for being communicated with the double-rotor engine; the rotor is rotatably arranged in the first cavity, the rotor is provided with a pipe cavity, the pipe cavity is communicated with the first compression cylinder connector, the rotor is further provided with a first slotted hole communicated with the pipe cavity, and the first slotted hole rotates along with the rotor and is selectively communicated with one of the first acting cylinder connector and the second acting cylinder connector. The reversing valve provided by the embodiment of the invention can have relatively high reversing frequency and relatively low reversing time; in addition, the reversing valve is easy to control and can be conveniently matched with the double-rotor engine.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and in particular to a reversing valve and a dual-rotor engine. Background Art

[0002] In other equipment such as automobiles, it is usually adopted to ignite and compress the combustible mixed gas, and the gas expansion pushes the piston to do repeated movement in the cylinder and then converts it into shaft movement. However, due to the inertia of the piston, the additional work of the repeated movement offset by it will be large, the useful work is relatively small, and the energy consumption is large. Therefore, some equipment in the prior art adopts a rotary engine to overcome this disadvantage, but because the rotor is eccentric, the initial torque is also not at the axis, the useful work is still small, the energy consumption is still large, and the engine life is not long due to the large friction between the rotor and the inner wall. Based on this, some equipment adopts a twin-rotor engine. The design of the twin-rotor engine is significantly different from that of the traditional piston engine. The twin-rotor engine is formed by two groups of two pairs of concentric rotors to form a separate compression cylinder and a combustion cylinder, thereby realizing full centrifugal shaft output power, which helps to reduce energy consumption and increase power. In a twin-rotor engine, a reversing valve is usually required to control the gas flowing from the compression cylinder to the combustion cylinder. However, the flow rates of the solenoid valves, rotating ball valves and butterfly valves currently used in twin-rotor engines are difficult to meet the needs of twin-rotor engines, and the switching frequencies of the rotating ball valves and butterfly valves are also difficult to meet the needs of twin-rotor engines.

[0003] Therefore, there is an urgent need for a reversing valve that can meet the needs of a twin-rotor engine to improve the performance of the twin-rotor engine. Summary of the invention

[0004] Therefore, in order to overcome at least some of the defects and shortcomings in the prior art, an embodiment of the present invention provides a reversing valve and a dual-rotor engine with fast reversing speed and high reversing frequency.

[0005] An embodiment of the present invention provides a reversing valve for a dual-rotor engine, comprising:

[0006] The housing is formed with a first working cylinder connection port, a second working cylinder connection port, a first compression cylinder connection port and a first chamber, wherein the first working cylinder connection port and the second working cylinder connection port are respectively connected to the first chamber;

[0007] The rotor is rotatably disposed in the first chamber, and the rotor has a tubular cavity, which is connected to the first compression cylinder connection port. The rotor also has a first slot hole connected to the tubular cavity, and the first slot hole can selectively connect to one of the first working cylinder connection port and the second working cylinder connection port as the rotor rotates.

[0008] In some embodiments, the reversing valve also includes a sleeve, which is fixed in the first chamber, and has two second slots respectively connected to the first working cylinder connection port and the second working cylinder connection port. The rotor is rotatably disposed in the sleeve, and the first slot can be selectively connected to one of the two second slots as the rotor rotates.

[0009] In some embodiments, the reversing valve has a lubrication passage between the rotor and the sleeve.

[0010] In some embodiments, the shell is provided with a first through hole and a second through hole, and the surface of the sleeve facing the shell (11) is provided with a first channel and a second channel, the first through hole is connected to the first channel, and the second through hole is connected to the second channel; the sleeve is also provided with a third through hole and a fourth through hole, and a first groove is provided on a side of the rotor close to the sleeve, the third through hole is connected to the first channel and the first groove, and the fourth through hole is connected to the second channel and the first groove; the first through hole, the second through hole, the first channel, the second channel, the third through hole and the fourth through hole together constitute the lubrication channel.

[0011] In some embodiments, the first channel is in communication with the second channel.

[0012] In some embodiments, a wall surface of the sleeve facing the rotor is provided with an arc, and the center of the arc is concentric with the rotation axis of the rotor.

[0013] In some embodiments, a cross-sectional area of ​​the first compression cylinder connection port is larger than a cross-sectional area of ​​the first working cylinder connection port and a cross-sectional area of ​​the second working cylinder connection port.

[0014] In some embodiments, the shell further has a second compression cylinder connection port, the second compression cylinder connection port is connected to the tube cavity, and the sum of the cross-sectional areas of the first compression cylinder connection port and the second compression cylinder connection port is greater than the sum of the cross-sectional areas of the first working cylinder connection port and the second working cylinder connection port.

[0015] An embodiment of the present invention also provides a twin-rotor engine, in which the reversing valve described in any one of the above items is connected to the twin-rotor engine, and the twin-rotor engine includes a compression cylinder, a working cylinder and a combustion chamber; the first compression cylinder connecting port is connected to the compression cylinder, the first working cylinder connecting port and the second working cylinder connecting port are respectively connected to the combustion chamber, and the combustion chamber is connected to the working cylinder.

[0016] In some embodiments, the dual-rotor engine further includes a first main engine shaft and a transmission assembly, wherein the first main engine shaft is transmission-connected to the working cylinder, and the rotor is transmission-connected to the first main engine shaft via the transmission assembly.

[0017] The beneficial effects achieved by the embodiment of the present invention are as follows: the reversing valve provided by the embodiment of the present invention is provided with a first working cylinder connection port, a second working cylinder connection port and a first compression cylinder connection port on the housing to communicate with the dual-rotor engine, so that the reversing valve can control the gas flow in the dual-rotor engine. In the first chamber of the housing, a rotatable rotor is provided, and a first slot is provided on the rotor so that the first slot can selectively connect the first working cylinder connection port and the second working cylinder connection port by rotation, thereby realizing the function of controlling the gas flow. Therefore, the reversing valve can have a higher reversing frequency and a lower reversing time; and the connection and disconnection of the outlet by rotation also makes the reversing valve easy to control, thereby facilitating the cooperation with the dual-rotor engine to improve the working efficiency of the dual-rotor engine. The dual-rotor engine provided by the embodiment of the present invention controls the airflow between the compression cylinder and the working cylinder through the reversing valve as described in any of the above items, and the reversing valve has a high reversing frequency, a short reversing time and is easy to control, and can be matched with the dual-rotor engine, so that the dual-rotor engine provided by the embodiment of the present invention works smoothly, has a higher efficiency and a faster speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a reversing valve in one embodiment of the present invention.

[0019] Figure 2 yes Figure 1 Schematic cross-sectional view of the AA section from the first perspective.

[0020] Figure 3 Schematic diagram of the structure of the rotor in one embodiment of the present invention.

[0021] Figure 4 It is a schematic structural diagram of a rotor and a sleeve in one embodiment of the present invention.

[0022] Figure 5 yes Figure 1 Schematic cross-sectional view of the BB section from the second perspective.

[0023] Figure 6 It is a schematic diagram of the overall structure of the reversing valve and the dual-rotor engine in one embodiment of the present invention.

[0024] Figure 7 It is a schematic diagram of the connection relationship of some structures in one embodiment of the present invention.

[0025] Description of Reference Numerals

[0026] 10. reversing valve; 11. housing; 111. first working cylinder connection port; 112. second working cylinder connection port; 113. first compression cylinder connection port; 114. first chamber; 115. first through hole; 116. second through hole; 117. second compression cylinder connection port; 118. second chamber; 12. rotor; 121. hollow tube; 122. shaft head; 123. first slot; 124. first groove; 125. tube cavity; 13. shaft sleeve; 131. second slot; 132. first channel; 133. third through hole; 134. fourth through hole; 135. second channel; 141. first cavity port; 142. second cavity port; 20. twin-rotor engine; 21. compression cylinder; 22. working cylinder; 23. first main engine shaft; 24. combustion chamber. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] It should also be noted that the division of multiple embodiments in the present invention is only for the convenience of description and should not constitute a special limitation. The features in various embodiments can be combined and referenced to each other without contradiction.

[0031] In a twin-rotor engine, the gas in the compression cylinder is transported to the gas combustion chamber through a pipeline, etc., and then the gas and fuel are burned in the gas combustion chamber to produce explosive gas, which then drives the working cylinder to work, thereby outputting power to the outside. Therefore, it can be understood that since the compression of the gas in the compression cylinder and the reaction in the gas combustion chamber have a time sequence, it is necessary to control the gas compressed by the compression cylinder and flowing to the gas combustion chamber through a valve to cooperate with the gas combustion chamber and the working cylinder, so that the twin-rotor engine can run smoothly. However, since the twin-rotor engine has a high speed and a fast working frequency when running, it is necessary to have a high valve switching frequency and a short switching time. In the prior art, the solenoid valve has a small flow rate, a low frequency and a delayed switching time; although the rotating ball valve and the butterfly valve have a large flow rate, the switching is slower and the frequency is lower. Therefore, there is a need for a valve with a high switching frequency and a short switching time.

[0032] Based on this, Figure 1 to Figure 3 As shown, the embodiment of the present invention provides a reversing valve 10 for a dual-rotor engine 20, comprising a housing 11 and a rotor 12. The housing 11 is formed with a first working cylinder connection port 111, a second working cylinder connection port 112, a first compression cylinder connection port 113 and a first chamber 114, and the first working cylinder connection port 111 and the second working cylinder connection port 112 are respectively connected to the first chamber 114. The rotor 12 is rotatably disposed in the first chamber 114, and the rotor 12 has a tube cavity 125, and the tube cavity 125 is connected to the first compression cylinder connection port 113. The rotor 12 also has a first slot 123 connected to the tube cavity 125, and the first slot 123 can selectively connect to one of the first working cylinder connection port 111 and the second working cylinder connection port 112 as the rotor 12 rotates.

[0033] The rotor 12 is provided with a first slot 123. When the rotor 12 rotates, the first slot 123 rotates with the rotation of the rotor 12. During the rotation of the first slot 123, the first slot 123 rotates and approaches the first working cylinder connection port 111, and then gradually communicates with the first working cylinder connection port 111. It can be understood that during the rotation of the first slot 123 and the gradual communication with the first working cylinder connection port 111, the cross-sectional area of ​​the connection between the first slot 123 and the first working cylinder connection port 111 gradually increases. When connected, the compressed gas entering the housing 11 and the tube cavity 125 from the first working cylinder connection port 111 can flow out of the reversing valve 10 through the first slot 123 and the first working cylinder connection port 111, and it should be noted that the minimum distance between the first working cylinder connection port 111 and the second working cylinder connection port 112 along the rotation direction of the rotor 12 is greater than the maximum aperture of the first slot 123. The rotor 12 has only one first slot 123. When the first slot 123 is connected to the first working cylinder connection port 111, the tube wall of the rotor closes the second working cylinder connection port 112. Therefore, at this time, the compressed gas can only flow out of the reversing valve 10 from the first working cylinder connection port 111 and then flow to the dual-rotor engine 20. Subsequently, the first slot 123 continues to rotate and moves away from the first working cylinder connection port 111, and then gradually disconnects from the first working cylinder connection port 111. It can be understood that in the process of disconnecting the first slot 123 from the first working cylinder connection port 111, the cross-sectional area of ​​the connection between the first slot 123 and the first working cylinder connection port 111 gradually decreases. After the first slot 123 is disconnected from the first working cylinder connection port 111, the compressed gas and the fuel are deflagrated to generate the deflagration gas. Since the first slot 123 is disconnected from the first working cylinder connection port 111 at this time, the first working cylinder connection port 111 is closed by the rotor 12 forming the tube cavity 125, so the deflagration gas cannot enter the tube cavity 125 and other parts of the dual-rotor engine 20 through the first working cylinder connection port 111, thereby helping to protect the reversing valve 10. After the first slot 123 is disconnected from the first working cylinder connection port 111, the first slot 123 continues to rotate, and similarly, the first slot 123 and the second working cylinder connection port 112 approach and gradually connect. When connected, the compressed gas entering the housing 11 and the tube cavity 125 from the first compression cylinder connection port 113 can flow out of the reversing valve 10 through the first slot 123 and the second working cylinder connection port 112. Since the rotor 12 has only one first slot 123, when the first slot 123 is connected to the second working cylinder connection port 112, the rotor 12 forming the tube cavity 125 blocks the first working cylinder connection port 111, so that the gas can only flow out of the reversing valve 10 from the second working cylinder connection port 112. Subsequently, the first slot 123 continues to rotate and moves away from the second working cylinder connection port 112, and then gradually disconnects from the second working cylinder connection port 112.After the first slot 123 is disconnected from the second working cylinder connection port 112, the compressed gas and the fuel are deflagrated to generate the deflagration gas. Since the first slot 123 is disconnected from the second working cylinder connection port 112 at this time, the second working cylinder connection port 112 is closed by the rotor 12 forming the tube cavity 125, so the deflagration gas cannot enter the tube cavity 125 through the second working cylinder connection port 112 and then enter other parts of the dual-rotor engine 20, which helps to protect the reversing valve 10 and the dual-rotor engine 20. As the first slot 123 continues to rotate, the first slot 123 gradually approaches the first working cylinder connection port 111 to enter the next cycle. In this way, the first slot 123 can be selectively connected to the first working cylinder connection port 111 or the second working cylinder connection port 112 through the rotation of the rotor 12, so the reversing valve 10 can reverse the gas through the rotation of the first slot 123. Furthermore, since the rotor 12 is reversed by rotating, and the rotor 12 can have a high speed and an adjustable speed, the first slot 123 can have a high frequency and a low reversing time when switching and connecting with the first working cylinder connection port 111 and the second working cylinder connection port 112. Thus, the reversing valve 10 can have a high reversing frequency and a low reversing time; and the connection and disconnection of the gas outlet by rotating also makes the reversing valve 10 easy to control, thereby facilitating the cooperation of the reversing valve 10 with the dual-rotor engine 20 to improve the working efficiency of the dual-rotor engine 20.

[0034] It should be noted that, in the above description, the connection sequence of the first slot 123 and the first working cylinder connection port 111 and the second working cylinder connection port 112 respectively is only for explaining the working principle of the reversing valve 10, and does not constitute a specific limitation on the connection sequence of the first slot 123 and the first working cylinder connection port 111 and the second working cylinder connection port 112 respectively.

[0035] The reversing valve 10 provided in the embodiment of the present invention is provided with a first working cylinder connection port 111, a second working cylinder connection port 112 and a first compression cylinder connection port 113 on the housing 11 to communicate with the twin-rotor engine 20, so that the reversing valve 10 can control the gas flow in the twin-rotor engine 20. In the first chamber 114 of the housing 11, a rotatable rotor 12 is provided, and a first slot 123 is provided on the rotor 12 so that the first slot 123 can selectively connect the first working cylinder connection port 111 and the second working cylinder connection port 112 by rotation, thereby realizing the function of controlling the gas flow. Therefore, the reversing valve 10 can have a higher reversing frequency and a lower reversing time; and the connection and disconnection of the outlet by rotation also makes the reversing valve 10 easy to control, thereby facilitating the cooperation with the twin-rotor engine 20 to improve the working efficiency of the twin-rotor engine 20.

[0036] In some specific embodiments, see Figure 2 and Figure 3 The shell has a first cavity 141 and a second cavity 142, the first cavity 141 is connected to the first working cylinder connection port 111, and the second cavity 142 is connected to the second working cylinder connection port 112; the rotor 12 includes a hollow tube 121 and a shaft head 122, the tube cavity 125 is formed by the tube wall of the hollow tube 121, the first slot 123 is provided on the tube wall of the hollow tube 121, one side of the hollow tube 121 is connected to the first compression cylinder connection port 113, and the other side of the hollow tube 121 is connected to the shaft head 122; the first slot 123 can selectively connect to one of the first cavity 141 and the second cavity 142 as the hollow tube 121 rotates.

[0037] The hollow tube 121 is open at both ends along its extension direction. One end of the hollow tube 121 is connected to the shaft head 122, and the other end is connected to the first compression cylinder connection port 113. The gas flows into the tube cavity 125 in the hollow tube 121 from the first compression cylinder connection port 113. It can be understood that in order to reduce the leakage of gas from the end of the hollow tube 121 connected to the shaft head 122, the shaft head 122 is sealed and connected to the hollow tube 121; the rotor 12 is sealed from the wall of the first chamber 114 to reduce the gas from flowing away from the gap between the rotor 12 and the wall of the first chamber 114. The shaft head 122 is connected to the hollow tube 121, so when rotating, the shaft head 122 rotates together with the hollow tube 121.

[0038] Specifically, the hollow tube 121 is rotatably disposed in the first chamber 114 , and at least a portion of the shaft head 122 is disposed in the first chamber 114 . When rotating, the two rotate together, and the first slot 123 rotates with the rotation of the shaft head 122 and the hollow tube 121 .

[0039] Specifically, the wall of the first chamber 114 is provided with an arc, and the center of the arc is located on the rotation axis of the rotor 12, so as to improve the airtightness between the wall of the first chamber 114 and the rotor 12, and improve the smoothness of the rotation of the rotor 12. Specifically, the housing 11 and the rotor 12 form a lubricating oil path together, so that the lubricant can flow into the first chamber 114 through the lubricating oil path and lubricate the rotor 12 and the wall of the first chamber 114, and can also make the rotor 12 rotate more smoothly while improving the sealing between the rotor 12 and the wall of the first chamber 114.

[0040] In some embodiments, the cross-sectional area of ​​the first slot 123 is smaller than the first cavity 141 and the second cavity 142. In this way, when the gas flows from the first slot 123 to the first cavity 141 or from the first slot 123 to the second cavity 142 from the lumen 125, the wall of the rotor 12 forming the first slot 123 can block the gas from flowing from the lumen 125 to the gap between the rotor 12 and the wall of the first chamber 114, thereby helping to maintain the airtightness between the rotor 12 and the wall of the first chamber 114 facing the rotor 12.

[0041] In some specific embodiments, the first working cylinder connection port 111 and the second working cylinder connection port 112 are arranged along the rotation direction of the rotor 12. In this way, it is more convenient to set the first slot 123 on the rotor 12, so that the first slot 123 is more easily connected to the first working cylinder connection port 111 and the second working cylinder connection port 112 respectively; at the same time, it is also convenient to adjust the rotation speed of the rotor 12 according to the distance between the first working cylinder connection port 111 and the second working cylinder connection port 112, thereby facilitating the adjustment of the commutation frequency.

[0042] Furthermore, the first working cylinder connection port 111 and the second working cylinder connection port 112 are symmetrically arranged about the rotation axis of the rotor 12. In this way, it is further convenient to adjust the rotation speed of the rotor 12 to adjust the reversing frequency of the gas; at the same time, the symmetrical arrangement is also conducive to making the reversing valve 10 more stable when working.

[0043] In some embodiments, such as Figure 2 and Figure 4 As shown, the reversing valve 10 also includes a sleeve 13, which is fixed in the first chamber 114. The sleeve 13 has two second slots 131 connected to the first working cylinder connection port 111 and the second working cylinder connection port 112 respectively. The rotor 12 is rotatably disposed in the sleeve 13, and the first slot 123 can selectively connect to one of the two second slots 131 as the rotor 12 rotates.

[0044] The first slot 123 rotates to switch the connection between the two second slots 131, and then switch the connection between the first working cylinder connection port 111 and the second working cylinder connection port 112. It can be understood that the sleeve 13 is sealed and connected to the wall of the first chamber 114 to reduce the gas from flowing out from the wall of the first chamber 114 and the sleeve 13; the sleeve 13 and the rotor 12 are also sealed to reduce the gas from flowing out from the sleeve 13 and the rotor 12. In this way, the sleeve 13 is set on the rotor 12, which can prevent the rotor 12 from directly contacting the wall of the first chamber 114 when rotating, thereby reducing the wear of the wall of the first chamber 114 and the rotor 12, which helps to extend the service life of the reversing valve 10; and the rotor 12 is set in the sleeve 13, which is also convenient for disassembly of the rotor 12 and the sleeve 13, and then convenient for replacement of the rotor 12 and the sleeve 13, which further helps to extend the service life of the reversing valve 10.

[0045] In some specific embodiments, the wall of the sleeve 13 facing the rotor 12 is provided with an arc, and the center of the arc is concentric with the rotation axis of the rotor 12, so as to improve the airtightness between the sleeve 13 and the rotor 12 and enable the rotor 12 to rotate more smoothly.

[0046] In some embodiments, the reversing valve 10 has a lubrication channel between the rotor 12 and the sleeve 13. In this way, the lubricant can flow into the sleeve 13 through the lubrication channel to lubricate the space between the sleeve 13 and the rotor 12, so that the rotor 12 rotates more smoothly, and at the same time helps to reduce the wear between the sleeve 13 and the rotor 12, and can also improve the air tightness between the sleeve 13 and the rotor 12.

[0047] Specifically, see Figure 5 The shell 11 is provided with a first through hole 115 and a second through hole 116, and the sleeve 13 is provided with a first channel 132 and a second channel 135 on the surface facing the shell 11, the first through hole 115 is connected to the first channel 132, and the second through hole 116 is connected to the second channel 135; the sleeve is also provided with a third through hole 133 and a fourth through hole 134, and a first groove 124 is provided on a side of the rotor 12 close to the sleeve 13, the third through hole 133 is connected to the first channel 132 and the first groove 124, and the fourth through hole 134 is connected to the second channel 135 and the first groove 124.

[0048] Because the sleeve 13 is fixed in the first chamber 114, the sleeve 13 and the housing 11 remain relatively still. The lubricant flows into the first channel 132 and the second channel 135 from the first through hole 115 and the second through hole 116 respectively, and then flows into the first groove 124 from the first channel 132 and the second channel 135 respectively, and then the lubricant flows between the sleeve 13 and the rotor 12 through the first groove 124 to fill the gap between the sleeve 13 and the rotor 12. Since the lubricant is viscous, when the first groove 124 rotates with the rotor 12, the lubricant in the first groove 124 also rotates, and adheres to the surface of the sleeve 13 facing the rotor 12 during the rotation, and the rotor 12 returns to the initial position after one rotation and communicates with the third through hole 133 and the fourth through hole 134, so that the first groove 124 can be replenished with lubricant, and then when the rotor 12 continues to rotate, the lubricant continues to adhere to the surface of the sleeve 13 close to the rotor 12 to fill the gap between the sleeve 13 and the rotor 12. In this way, a lubrication channel is formed to facilitate adding lubricant between the rotor 12 and the sleeve 13 .

[0049] Further, see Figure 5 , the first channel 132 is connected to the second channel 135. The first channel 132, the second channel 135, the first groove 124, the third through hole and the fourth through hole together form a loop, so that the lubricant can circulate in the loop, and the gas in the lubrication pipeline can be effectively discharged, so that the lubricant can better lubricate the rotor and the sleeve.

[0050] Furthermore, the first groove 124 is connected to the third through hole 133 and the fourth through hole 134 at two ends of the first groove 124 along the extension direction of the first groove 124, respectively, so as to discharge the gas in the first groove 124 and allow the lubricant to better fill the first groove 124, thereby allowing the lubricant to better lubricate the rotor 12 and the sleeve 13.

[0051] In some specific embodiments, the extension direction of the first groove 124 is in the same direction as the rotation axis of the rotor 12, so that the lubricant can flow along the first groove 124 to a farther position along the extension direction of the rotor 12, thereby helping the lubricant to cover the surface of the rotor 12, improving the lubrication effect and the sealing between the sleeve 13 and the rotor 12.

[0052] In some embodiments, the cross-sectional area of ​​the first compression cylinder connection port 113 is larger than the cross-sectional areas of the first working cylinder connection port 111 and the second working cylinder connection port 112. This helps to make the amount of gas entering the housing 11 and the tube cavity 125 from the first compression cylinder connection port 113 larger than the amount of gas flowing out from the first working cylinder connection port 111 or the second working cylinder connection port 112, and when the first slot 123 rotates to communicate with the first working cylinder connection port 111 or the second working cylinder connection port 112, the amount of gas flowing out from the first working cylinder connection port 111 or the second working cylinder connection port 112 is more sufficient, thereby helping to improve the combustion efficiency of the twin-rotor engine 20.

[0053] In some embodiments, see Figure 2 The housing 11 also has a second compression cylinder connection port 117, which is connected to the tube cavity 125, and the sum of the cross-sectional areas of the first compression cylinder connection port 113 and the second compression cylinder connection port 117 is greater than the sum of the cross-sectional areas of the first working cylinder connection port 111 and the second working cylinder connection port 112. The second compression cylinder connection port 117 is provided to help adapt to different working conditions of the dual-rotor engine 20 and to improve the versatility of the reversing valve 10. By increasing the number of inlets, the amount of air entering the housing 11 and the tube cavity 125 is increased. Furthermore, the sum of the cross-sectional areas of the first compression cylinder connection port 113 and the second compression cylinder connection port 117 is greater than the sum of the cross-sectional areas of the first working cylinder connection port 111 and the second working cylinder connection port 112, which helps to further increase the amount of gas entering the shell 11 and the tube cavity 125 from the first compression cylinder connection port 113 and the second compression cylinder connection port 117, and further increases the amount of gas flowing out from the first working cylinder connection port 111 or the second working cylinder connection port 112. When the first slot 123 rotates to connect with the first working cylinder connection port 111 or the second working cylinder connection port 112, the amount of gas flowing out from the first working cylinder connection port 111 or the second working cylinder connection port 112 is further increased, thereby helping to improve the combustion efficiency of the dual-rotor engine 20.

[0054] In some specific embodiments, see Figure 2 The housing 11 is provided with a second chamber 118, the second chamber 118 is communicated with the first compression cylinder connection port 113 and the second compression cylinder connection port 117, and the tube cavity 125 is communicated with the second chamber 118. By providing the second chamber 118, the space for storing air in the housing 11 can be increased, so that the gas entering through the first compression cylinder connection port 113 and the second compression cylinder connection port 117 can be stored in the second chamber 118, so that when the first slot 123 is communicated with the first working cylinder connection port 111 or the second working cylinder connection port 112, the amount of gas going out through the first working cylinder connection port 111 or the second working cylinder connection port 112 is more sufficient, thereby improving the combustion efficiency of the twin-rotor engine 20.

[0055] The present invention also provides a dual-rotor engine 20, see Figure 6 The reversing valve 10 described in any of the above items is connected to the twin-rotor engine 20, which includes a compression cylinder 21, a working cylinder 22 and a combustion chamber 24; the first compression cylinder connection port 113 is connected to the compression cylinder 21, the first working cylinder connection port 111 and the second working cylinder connection port 112 are respectively connected to the combustion chamber 24, and the combustion chamber 24 is connected to the working cylinder 22. The compression cylinder 21 compresses the gas and sends the gas into the reversing valve 10, and then passes through the second working cylinder connection port 112 or the second working cylinder connection port 112 in the reversing valve 10, and is transported to the combustion chamber 24 to explode and generate expansion gas, and the expansion gas pushes the working cylinder 22 to work. The combustion chamber 24 is provided to help the fuel and compressed air mix and fully burn, thereby outputting greater power. The reversing valve 10 is easy to control, so it can cooperate with the ignition timing of the twin-rotor engine 20 and can be controlled together, so that the twin-rotor engine 20 can run smoothly.

[0056] The twin-rotor engine 20 provided in the embodiment of the present invention controls the airflow between the compression cylinder 21 and the working cylinder 22 through the reversing valve 10 as described in any one of the above items, and the reversing valve 10 has a high reversing frequency, a short reversing time and is easy to control, and can be matched with the twin-rotor engine, so that the ignition timing of the twin-rotor engine 20 provided in the embodiment of the present invention is controllable, the expansion gas generated by the deflagration will not flow back, and the recoil force generated when the expansion gas pushes the working cylinder 22 will be blocked by the reversing valve 10 and will not affect the compression cylinder 21. The twin-rotor engine 20 works smoothly and can ensure higher efficiency and faster speed.

[0057] In some embodiments, see Figure 6 and Figure 7 The twin-rotor engine 20 further includes a first main shaft 23 and a transmission assembly, the first main shaft 23 is transmission-connected to the working cylinder 22, and the rotor 12 is transmission-connected to the first main shaft 23 through the transmission assembly. It can be understood that the working cylinder 22 is transmission-connected to the first main shaft 23 to output power to the outside.

[0058] The compression cylinder 21 works, and gas is sucked into the compression cylinder 21 from the outside to realize the air intake of the compression cylinder 21; the compression cylinder 21 continues to work to compress the gas in the compression cylinder 21 to generate compressed gas; the compression cylinder 21 sends the compressed gas into the reversing valve, and the compressed gas enters the shell and the tube cavity 125 through the first compression cylinder connection port 113; the rotor 12 rotates to the first slot 123 and communicates with the first working cylinder connection port 111, and the compressed gas enters the combustion chamber 24 through the first slot 123 and the first working cylinder connection port 111, and the compressed gas The mixture is mixed with the fuel and ignited, and the mixed gas burns to generate high-temperature and high-pressure gas, which pushes the working cylinder 22 to work, so that the first main engine shaft 23 rotates and outputs power. The first main engine shaft 23 drives the rotor 12 to continue to rotate, and because the rotor 12 keeps rotating, during combustion, the first slot 123 is disconnected from the first working cylinder connection port 111, and the high-temperature and high-pressure gas generated by the combustion is blocked by the rotor 12 and is difficult to flow back into the tube cavity 125 and the compression cylinder 21; the exhaust gas after combustion is discharged from the working cylinder 22, completing a working process, so as to prepare for the combustion. The next time the work is done, the compression cylinder 21 continues to work to take in air. The compression cylinder 21 compresses the gas entering therein and sends it to the reversing valve. The rotor 12 rotates, the first slot 123 is disconnected from the first working cylinder connection port 111, and the rotor 12 continues to rotate until the first slot 123 is connected to the second working cylinder connection port 112, and the compressed gas enters the combustion chamber 24 through the second working cylinder connection port 112. In the combustion chamber 24, the compressed gas is mixed with the fuel and ignited to generate high-temperature and high-pressure gas to push the working cylinder 22 to work, so that the first main engine shaft 23 The first main engine shaft 23 rotates and outputs power, and drives the rotor 12 to continue rotating. Since the rotor 12 keeps rotating, during combustion, the first slot 123 is disconnected from the second working cylinder connection port 112, and the high-temperature and high-pressure gas generated by the combustion is blocked by the rotor 12 and is difficult to flow back into the tube cavity 125 and the compression cylinder 21; the exhaust gas after combustion is discharged from the working cylinder 22, completing a working process to prepare for the next working process. Through the above actions, the dual-rotor engine 20 realizes a working cycle and realizes smooth operation through the reversing valve 10.

[0059] That is to say, the rotor 12 can cooperate with the work of the working cylinder 22 to make the operation of the twin-rotor engine 20 smoother, so that the reversing valve 10, the working cylinder 22 and the combustion chamber 24 can be timed, and the intake, compression, work and other operations of the twin-rotor engine 20 can be better coordinated with the reversing valve 10, thereby protecting the twin-rotor engine 20 and improving the efficiency of the twin-rotor engine 20.

[0060] In some specific embodiments, see Figure 6The combustion chamber 24 includes a first combustion chamber and a second combustion chamber, the working cylinder 22 includes a first working cylinder and a second working cylinder, the first working cylinder is connected to the first combustion chamber, the second working cylinder is connected to the second combustion chamber, the first working cylinder connecting port 111 is connected to the first combustion chamber, and the second working cylinder connecting port 112 is connected to the second combustion chamber. The compression cylinder 21 delivers compressed gas to the reversing valve 10 through the first compression cylinder connecting port 113, the rotor 12 is connected to the first main engine shaft 23 for matching rotation, and the first slot 123 rotates with the first main engine shaft 23 to switch the connection between the first working cylinder connecting port 111 and the second working cylinder connecting port 112. When the first slot 123 rotates to communicate with the first working cylinder connection port 111, the compressed gas enters the first combustion chamber through the first slot 123 and the first working cylinder connection port 111. At this time, the rotor 12 blocks the second working cylinder connection port 112 to prevent the compressed gas from flowing to the second working cylinder connection port 112. After the compressed gas enters the first combustion chamber, the first slot 123 continues to rotate until it is disconnected from the first working cylinder connection port 111. At this time, the first working cylinder connection port 111 is blocked and closed by the rotor 12, and the compressed gas flows into the combustion chamber 2. 4 is injected with fuel to mix with compressed gas, and then ignited, the fuel explodes to produce high-temperature and high-pressure explosion gas, and since the first working cylinder communication port 111 is blocked by the rotor at this time, the high-temperature and high-pressure explosion gas will not flow into the tube cavity 125 and the compression cylinder 21, which helps to protect the tube cavity 125 and the compression cylinder 21, and the impact force of the explosion gas will not be weakened due to the explosion gas flowing into the reversing valve 10 and the compression cylinder 21, which helps to increase the impact force of the explosion gas on the working cylinder 22 and improve the efficiency of the working cylinder 22. The explosion gas flows to the first working cylinder to make the first working cylinder work, and then the first working cylinder drives the first main engine shaft 23 to rotate, outputs power to the outside through the first main engine shaft 23 and makes the rotor 12 continue to rotate. The rotor 12 continues to rotate and is connected with the second working cylinder communication port 112, and the compression cylinder 21, the second working cylinder, the second combustion chamber and the reversing valve 10 produce similar actions as described above, which will not be repeated here. In this way, by providing two sets of working cylinders 22 and combustion chambers 24, it helps to increase power output, thereby improving the efficiency of the twin-rotor engine 20 and making the twin-rotor engine 20 run more smoothly. At the same time, the reversing valve 10 also helps to prevent the explosion gas from damaging the reversing valve 10 itself and the first compression cylinder and the second compression cylinder.

[0061] Specifically, the angular velocity of the rotor 12 is the same as the angular velocity of the first main shaft 23. In this way, the rotation speed of the rotor 12 matches the rotation speed of the first main shaft 23, that is, the rotation speed of the working cylinder 22, which helps to improve the matching degree between the reversing valve 10 and the working cylinder 22, thereby improving the efficiency of the dual-rotor engine 20.

[0062] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A reversing valve (10) for a twin-rotor engine (20), characterized in that: include: The housing (11) is formed with a first working cylinder connection port (111), a second working cylinder connection port (112), a first compression cylinder connection port (113) and a first chamber (114); the first working cylinder connection port (111) and the second working cylinder connection port (112) are respectively connected to the first chamber (114); A rotor (12) is rotatably disposed in the first chamber (114), the rotor having a tube cavity (125), the tube cavity (125) being connected to the first compression cylinder connection port (113), and the rotor also having a first slot hole (123) connected to the tube cavity (125), the first slot hole (123) being selectively connected to one of the first working cylinder connection port (111) and the second working cylinder connection port (112) as the rotor (12) rotates.

2. The reversing valve (10) according to claim 1, characterized in that: The reversing valve (10) further comprises a shaft sleeve (13), wherein the shaft sleeve (13) is fixedly disposed in the first chamber (114), and the shaft sleeve (13) is provided with two second slot holes (131) respectively connected to the first working cylinder connection port (111) and the second working cylinder connection port (112), and the rotor (12) is rotatably disposed in the shaft sleeve (13), and the first slot hole (123) can selectively connect to one of the two second slot holes (131) as the rotor (12) rotates.

3. The reversing valve (10) according to claim 2, characterized in that: The reversing valve (10) has a lubrication passage between the rotor (12) and the shaft sleeve (13).

4. The reversing valve (10) according to claim 3, characterized in that: The housing (11) is provided with a first through hole (115) and a second through hole (116); a first channel (132) and a second channel (135) are provided on a surface of the sleeve facing the housing (11); the first through hole (115) is connected to the first channel (132); the second through hole (116) is connected to the second channel (135); the sleeve is further provided with a third through hole (133) and a fourth through hole (134); a first groove (124) is provided on a surface of the rotor 12 facing the sleeve (13); the third through hole (133) is connected to the first channel (132) and the first groove (124); the fourth through hole (134) is connected to the second channel (135) and the first groove (124); the first through hole (115), the second through hole (116), the first channel (132), the second channel (135), the third through hole (133) and the fourth through hole (134) together constitute the lubrication channel.

5. The reversing valve (10) according to claim 4, characterized in that: The first channel (132) is in communication with the second channel (135).

6. The reversing valve (10) according to claim 2, characterized in that: The wall surface of the shaft sleeve (13) facing the rotor (12) is provided with an arc, and the center of the arc is concentric with the rotation axis of the rotor (12).

7. The reversing valve (10) according to claim 1, characterized in that: The cross-sectional area of ​​the first compression cylinder connection port (113) is larger than the cross-sectional areas of the first working cylinder connection port (111) and the second working cylinder connection port (112).

8. The reversing valve (10) according to claim 1, characterized in that: The shell (11) further comprises a second compression cylinder connection port (117), the second compression cylinder connection port (117) being in communication with the tube cavity (125), and the sum of the cross-sectional areas of the first compression cylinder connection port (113) and the second compression cylinder connection port (117) being greater than the sum of the cross-sectional areas of the first working cylinder connection port (111) and the second working cylinder connection port (112).

9. A twin-rotor engine (20), characterized in that: The reversing valve (10) described in any one of claims 1 to 8 is connected to the twin-rotor engine (20), and the twin-rotor engine (20) includes a compression cylinder (21), a working cylinder (22) and a combustion chamber (24); the first compression cylinder connecting port (111) is connected to the compression cylinder (21), the first working cylinder connecting port (111) and the second working cylinder connecting port (112) are respectively connected to the combustion chamber (24), and the combustion chamber (24) is connected to the working cylinder (22).

10. The twin-rotor engine according to claim 9, characterized in that: The dual-rotor engine (20) further comprises a first main engine shaft (23) and a transmission assembly, wherein the first main engine shaft (23) is transmission-connected to the working cylinder (22), and the rotor (12) is transmission-connected to the first main engine shaft (23) via the transmission assembly.

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