Reversing valve and double-rotor engine

Abstract

The embodiment of the utility model 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 utility model can have higher reversing frequency and lower 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 utility model relates to the technical field of engine, concretely relates to a reversing valve and double rotor engine. BACKGROUND

[0002] In other devices such as automobiles, a combustible mixture gas is usually ignited and compressed, and the gas expansion pushes the piston to make repeated movements in the cylinder and then converts into shaft movement. However, due to the inertia of the piston, the repeated movements offset by the piston have more extra work and relatively less useful work, resulting in high energy consumption. Therefore, some devices in the prior art use a rotor engine to overcome this drawback. However, since the rotor is eccentric, the initial torque is also not at the shaft center, and the useful work is still relatively small, and the energy consumption is still relatively high. Moreover, due to the large friction between the rotor and the inner wall, the service life of the engine is not long. Based on this, some devices use a double rotor engine. The design of the double rotor engine is significantly different from that of the traditional piston engine. The double rotor engine is formed by two pairs of concentric rotors to form separate compression cylinders and combustion power cylinders, thereby realizing full centrifugal shaft rotation output power, which helps to reduce energy consumption and improve power. In the double rotor engine, a reversing valve is usually needed to control the gas flow from the compression cylinder to the combustion power cylinder. However, the flow rates of the solenoid valve, rotary ball valve, and disc valve used in the current double rotor engine are difficult to meet the needs of the double rotor engine, and the reversing frequency of the rotary ball valve and disc valve is also difficult to meet the needs of the double rotor engine.

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

[0004] Therefore, to overcome at least some of the defects and deficiencies in the prior art, the utility model embodiment provides a reversing valve with fast reversing speed and high reversing frequency, and a double rotor engine.

[0005] The utility model embodiment provides a reversing valve for a double rotor engine, comprising:

[0006] A housing is formed with a first power cylinder connection port, a second power cylinder connection port, a first compression cylinder connection port, and a first chamber. The first power cylinder connection port and the second power cylinder connection port are in communication with the first chamber, respectively.

[0007] A rotor is rotatably arranged in the first chamber. The rotor has a tube cavity in communication with the first compression cylinder connection port. The rotor also has a first slot hole in communication with the tube cavity. The first slot hole selectively communicates with one of the first power cylinder connection port and the second power cylinder connection port as the rotor rotates.

[0008] In some embodiments, the reversing valve further comprises a sleeve fixed in the first chamber, the sleeve is provided with two second grooves to communicate with the first working cylinder connecting port and the second working cylinder connecting port respectively, the rotor is rotatably arranged in the sleeve, and the first groove selectively communicates with one of the two second grooves as the rotor rotates.

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

[0010] In some embodiments, the shell is provided with a first through hole and a second through hole, the sleeve is provided with a first channel and a second channel on a surface thereof facing the shell (11), the first through hole communicates with the first channel, and the second through hole communicates with the second channel; the sleeve is further provided with a third through hole and a fourth through hole, one side of the rotor close to the sleeve is provided with a first groove, the third through hole communicates the first channel and the first groove, and the fourth through hole communicates 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 jointly form the lubricating channel.

[0011] In some embodiments, the first channel communicates with the second channel.

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

[0013] In some embodiments, a sectional area of the first compression cylinder connecting port is greater than sectional areas of the first working cylinder connecting port and the second working cylinder connecting port.

[0014] In some embodiments, the shell further has a second compression cylinder connecting port, the second compression cylinder connecting port communicates with the lumen, and a sum of sectional areas of the first compression cylinder connecting port and the second compression cylinder connecting port is greater than a sum of sectional areas of the first working cylinder connecting port and the second working cylinder connecting port.

[0015] The utility model embodiment further provides a double rotor engine, the reversing valve of any one of the above and the double rotor engine communicate, the double rotor engine includes compression cylinder, working cylinder and combustion chamber, the first compression cylinder connecting port communicates with the compression cylinder, the first working cylinder connecting port and the second working cylinder connecting port communicate with the combustion chamber respectively, and the combustion chamber communicates with the working cylinder.

[0016] In some embodiments, the double rotor engine further comprises a first main shaft and a transmission assembly, the first main shaft is in transmission connection with the working cylinder, and the rotor is in transmission connection with the first main shaft through the transmission assembly.

[0017] The embodiment of the utility model reaches beneficial effect for: the utility model discloses an embodiment provides the reversing valve, sets up first working cylinder connecting port, second working cylinder connecting port and first compression cylinder connecting port on the casing to communicate with double rotor engine, so that the reversing valve can control the gas flow in double rotor engine. In the first chamber of the casing, a rotatable rotor is provided, and a first slot hole is formed in the rotor to enable the first slot hole to selectively communicate the first working cylinder connecting port and the second working cylinder connecting port by rotation, thereby realizing the function of controlling gas flow. Therefore, the reversing valve can have a high reversing frequency and a low reversing time. Furthermore, the communication and disconnection of the outlet by rotation also makes the reversing valve easy to control, thereby facilitating cooperation with the double rotor engine to improve the working efficiency of the double rotor engine. The double rotor engine provided by the embodiment of the utility model controls the airflow between the compression cylinder and the working cylinder through the reversing valve according to any one of the above, and the reversing valve has high reversing frequency, short reversing time and is easy to control, can be matched with the double rotor engine, so that the double rotor engine provided by the embodiment of the utility model works smoothly, has high efficiency and faster speed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of reversing valve in an embodiment of the utility model.

[0019] Figure 2 It is Figure 1 The first view cross-sectional view of A-A section in it.

[0020] Figure 3 It is the structure schematic diagram of the rotor in an embodiment of the utility model.

[0021] Figure 4 It is the structure schematic diagram of the rotor and the shaft sleeve in an embodiment of the utility model.

[0022] Figure 5 It is Figure 1 The second view cross-sectional view of B-B section in it.

[0023] Figure 6 It is the overall structure schematic diagram of reversing valve and double rotor engine in an embodiment of the utility model.

[0024] Figure 7 It is the connection relation schematic diagram of part structure in an embodiment of the utility model.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 10, reversing valve; 11, housing; 111, first power cylinder connection port; 112, second power 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 hole; 124, first groove; 125, tube cavity; 13, shaft sleeve; 131, second slot hole; 132, first channel; 133, third through hole; 134, fourth through hole; 135, second channel; 141, first chamber port; 142, second chamber port; 20, dual-rotor engine; 21, compression cylinder; 22, power cylinder; 23, first main shaft; 24, combustion chamber. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purpose, features and advantages of the present application more apparent, obvious and understandable, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0028] In order to make the above-mentioned purpose, features and advantages of the present application more apparent, obvious and understandable, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0029] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can 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 the plurality of embodiments in the present application is only for the convenience of description, and should not constitute a special limitation. The features in various embodiments can be combined and mutually referenced without contradiction.

[0031] In a twin-rotor engine, gas in the compression cylinder is transported to the combustion chamber via pipes, where it combusts with fuel to produce combustion gases. These combustion gases then drive the power cylinder to perform work, thus outputting power. Therefore, it's understandable that the compression of gas in the compression cylinder and the reaction in the combustion chamber occur sequentially. Valves are needed to control the gas flow from the compression cylinder to the combustion chamber to coordinate with the combustion chamber and the power cylinder, ensuring smooth operation of the twin-rotor engine. However, due to the high speed and rapid power output of the twin-rotor engine, valves require high switching frequency and short switching time. In existing technologies, solenoid valves have low flow rates, low frequencies, and delayed switching times; rotary ball valves and disc valves have high flow rates but even slower switching and lower frequencies. Therefore, valves with high switching frequencies and short switching times are currently needed.

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

[0033] The rotor 12 is provided with a first slot hole 123, which rotates with the rotation of the rotor 12. In the process of the rotation of the first slot hole 123, the first slot hole 123 rotates and approaches the first working cylinder connecting port 111, and then gradually communicates with the first working cylinder connecting port 111. It can be understood that in the process of the rotation of the first slot hole 123 and the gradual communication with the first working cylinder connecting port 111, the cross-sectional area of the communication part of the first slot hole 123 and the first working cylinder connecting port 111 gradually increases. When the communication, the compressed gas entering the shell 11 and the lumen 125 from the first working cylinder connecting port 111 can flow out of the reversing valve 10 through the first slot hole 123 and the first working cylinder connecting port 111, and it needs to be explained that the minimum distance between the first working cylinder connecting port 111 and the second working cylinder connecting port 112 in the rotation direction of the rotor 12 is greater than the maximum diameter of the first slot hole 123. The rotor 12 has only one first slot hole 123, and when the first slot hole 123 communicates with the first working cylinder connecting port 111, the pipe wall of the rotor 12 closes the second working cylinder connecting port 112, so that the compressed gas can only flow out of the reversing valve 10 from the first working cylinder connecting port 111 and then flow to the dual-rotor engine 20. Subsequently, the first slot hole 123 continues to rotate and moves away from the first working cylinder connecting port 111, and then gradually disconnects the communication with the first working cylinder connecting port 111. It can be understood that in the process of the disconnection of the first slot hole 123 and the first working cylinder connecting port 111, the cross-sectional area of the communication part of the first slot hole 123 and the first working cylinder connecting port 111 gradually decreases. After the first slot hole 123 and the first working cylinder connecting port 111 are disconnected, the explosion of the compressed gas and the fuel produces explosion gas, and because the first slot hole 123 and the first working cylinder connecting port 111 are disconnected at this time, the first working cylinder connecting port 111 is closed by the rotor 12 forming the lumen 125, so that the explosion gas cannot enter the lumen 125 and other parts of the dual-rotor engine 20 through the first working cylinder connecting port 111, thereby helping to protect the reversing valve 10. After the first slot hole 123 and the first working cylinder connecting port 111 are disconnected, the first slot hole 123 continues to rotate, and similarly, the first slot hole 123 approaches and gradually communicates with the second working cylinder connecting port 112. When the communication, the compressed gas entering the shell 11 and the lumen 125 from the first compression cylinder connecting port 113 can flow out of the reversing valve 10 through the first slot hole 123 and the second working cylinder connecting port 112. Since the rotor 12 has only one first slot hole 123, when the first slot hole 123 communicates with the second working cylinder connecting port 112, the rotor 12 forming the lumen 125 closes the first working cylinder connecting port 111, so that the gas can only flow out of the reversing valve 10 from the second working cylinder connecting port 112. Subsequently, the first slot hole 123 continues to rotate and moves away from the second working cylinder connecting port 112, and then gradually disconnects the communication with the second working cylinder connecting port 112.When the first slot hole 123 is disconnected from the second cylinder port 112, the compressed gas and fuel will explode to produce explosion gas. Since the first slot hole 123 is disconnected from the second cylinder port 112, the second cylinder port 112 is closed by the rotor 12 forming the tube cavity 125, so the explosion gas cannot enter the tube cavity 125 through the second cylinder 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 hole 123 continues to rotate, the first slot hole 123 gradually approaches the first cylinder port 111 to enter the next cycle. In this way, the rotation of the rotor 12 enables the first slot hole 123 to selectively communicate with the first cylinder port 111 or the second cylinder port 112 through rotation, so that the reversing valve 10 can reverse the gas through the rotation of the first slot hole 123. Moreover, since the rotor 12 reverses in a rotating manner and can have a high rotational speed, the first slot hole 123 can have a high frequency and a low reversing time when switching between the first cylinder port 111 and the second cylinder port 112. In turn, the reversing valve 10 can have a high reversing frequency and a low reversing time; and the rotating manner of realizing the communication and disconnection of the gas outlet also makes the reversing valve 10 easy to control, thereby facilitating the cooperation of the reversing valve 10 and 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 communication sequence of the first slot hole 123 communicating with the first cylinder port 111 and the second cylinder port 112 respectively is only to illustrate the working principle of the reversing valve 10, and does not constitute a specific limitation on the communication sequence of the first slot hole 123 communicating with the first cylinder port 111 and the second cylinder port 112 respectively.

[0035] The reversing valve 10 provided by the embodiment of the utility model, first cylinder port 111, second cylinder port 112 and first compression cylinder port 113 are arranged on the shell 11 to communicate with the dual-rotor engine 20, so that the reversing valve 10 can control the gas flow in the dual-rotor engine 20. In the first chamber 114 of the shell 11, the rotor 12 is arranged to be rotatable, and the first slot hole 123 is arranged on the rotor 12 to selectively communicate the first cylinder port 111 and the second cylinder port 112 through rotation, thereby realizing the function of controlling the gas flow. Therefore, the reversing valve 10 can have a high reversing frequency and a low reversing time; and the rotating manner of realizing the communication and disconnection of the outlet also makes the reversing valve 10 easy to control, thereby facilitating the cooperation with the dual-rotor engine 20 to improve the working efficiency of the dual-rotor engine 20.

[0036] In some specific embodiments, referring to Figure 2 With Figure 3 The housing has a first cavity opening 141 and a second cavity opening 142, the first cavity opening 141 is in communication with the first working cylinder connecting port 111, and the second cavity opening 142 is in communication with the second working cylinder connecting port 112; the rotor 12 includes a hollow tube 121 and a shaft head 122, a tube cavity 125 is formed by the tube wall of the hollow tube 121, a first slot hole 123 is arranged on the tube wall of the hollow tube 121, one side of the hollow tube 121 is in communication with the first compression cylinder connecting port 113, and the other side of the hollow tube 121 is connected with the shaft head 122; the first slot hole 123 is selectively in communication with one of the first cavity opening 141 and the second cavity opening 142 with the rotation of the hollow tube 121.

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

[0038] Specifically, the hollow tube 121 is rotatably arranged in the first cavity 114, at least part of the shaft head 122 is arranged in the first cavity 114, and the two rotate together when rotating, and the first slot hole 123 rotates with the rotation of the shaft head 122 and the hollow tube 121.

[0039] Specifically, the wall surface of the first cavity 114 is arranged in an arc, and the center of the arc is located on the rotation axis of the rotor 12, so as to improve the air tightness between the wall surface of the first cavity 114 and the rotor 12, and improve the fluency of the rotation of the rotor 12. Specifically, the housing 11 and the rotor 12 jointly form a lubricating oil path, so that the lubricant can flow into the first cavity 114 through the lubricating oil path, thereby lubricating the rotor 12 and the wall surface of the first cavity 114, and also making the rotor 12 rotate more smoothly while improving the sealing between the rotor 12 and the wall surface of the first cavity 114.

[0040] In some embodiments, the first slot hole 123 has a cross-sectional area smaller than the first cavity opening 141 and the second cavity opening 142. In this way, when gas flows from the tube cavity 125 to the first cavity opening 141 or from the tube cavity 125 to the second cavity opening 142 via the first slot hole 123, the gas can be blocked by the wall of the rotor 12 forming the first slot hole 123 from flowing to the gap between the rotor 12 and the wall of the first cavity 114, thereby helping to maintain the air tightness between the rotor 12 and the wall of the first cavity 114.

[0041] In some specific embodiments, the first working cylinder connecting port 111 and the second working cylinder connecting port 112 are arranged along the rotation direction of the rotor 12. In this way, it is more convenient to arrange the first slot hole 123 on the rotor 12, so that the first slot hole 123 is more easily communicated with the first working cylinder connecting port 111 and the second working cylinder connecting 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 connecting port 111 and the second working cylinder connecting port 112, thereby facilitating the adjustment of the switching frequency.

[0042] Further, the first working cylinder connecting port 111 and the second working cylinder connecting 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 switching frequency of the gas; at the same time, the symmetric arrangement is also beneficial to make the switching valve 10 work more stably.

[0043] In some embodiments, as shown in Figure 2 As shown in Figure 4 The switching valve 10 further comprises a shaft sleeve 13, the shaft sleeve 13 is fixedly arranged in the first cavity 114, the shaft sleeve 13 is provided with two second slot holes 131 to be respectively communicated with the first working cylinder connecting port 111 and the second working cylinder connecting port 112, and the rotor 12 is rotatably arranged in the shaft sleeve 13, and the first slot hole 123 is selectively communicated with one of the two second slot holes 131 by rotating the rotor 12.

[0044] The first slot hole 123 rotates to switch the communication between the two second slot holes 131, and then switch the communication between the first working cylinder connecting port 111 and the second working cylinder connecting port 112. It can be understood that the shaft sleeve 13 is sealingly connected with the wall surface of the first chamber 114 to reduce the gas flow from the wall surface of the first chamber 114 and the shaft sleeve 13; the shaft sleeve 13 and the rotor 12 are also sealingly arranged to reduce the gas flow from the shaft sleeve 13 and the rotor 12. In this way, the shaft sleeve 13 is arranged on the rotor 12, which can avoid the direct contact between the rotor 12 and the wall surface of the first chamber 114 during rotation, thereby reducing the wear of the wall surface of the first chamber 114 and the rotor 12, and helping to prolong the service life of the reversing valve 10; and the rotor 12 is arranged in the shaft sleeve 13, which also facilitates the disassembly and replacement of the rotor 12 and the shaft sleeve 13, thereby further helping to prolong the service life of the reversing valve 10.

[0045] In some specific embodiments, the wall surface of the shaft sleeve 13 on the side facing the rotor 12 is arranged in an arc, and the center of the arc is concentric with the rotation axis of the rotor 12, so as to improve the air tightness between the shaft sleeve 13 and the rotor 12, and make the rotor 12 rotate more smoothly.

[0046] In some embodiments, the reversing valve 10 has a lubricating channel between the rotor 12 and the shaft sleeve 13. In this way, through the lubricating channel, the lubricant can flow into the shaft sleeve 13 to lubricate the shaft sleeve 13 and the rotor 12, making the rotor 12 rotate more smoothly, while helping to reduce the wear between the shaft sleeve 13 and the rotor 12, and also improving the air tightness between the shaft sleeve 13 and the rotor 12.

[0047] Specifically, referring to Figure 5 , the housing 11 is provided with a first through hole 115 and a second through hole 116, and the surface of the shaft sleeve 13 facing the housing 11 is provided with a first channel 132 and a second channel 135, the first through hole 115 and the first channel 132 are in communication, and the second through hole 116 and the second channel 135 are in communication; the shaft sleeve is also provided with a third through hole 133 and a fourth through hole 134, and the rotor 12 is provided with a first recess 124 on the side close to the shaft sleeve 13, the third through hole 133 communicates the first channel 132 and the first recess 124, and the fourth through hole 134 communicates the second channel 135 and the first recess 124.

[0048] Because the sleeve 13 is fixed in the first chamber 114, the sleeve 13 and the housing 11 remain relatively static. The lubricant flows into the first passage 132 and the second passage 135 through the first through hole 115 and the second through hole 116 respectively, and then flows into the first groove 124 through the first passage 132 and the second passage 135 respectively, and then the lubricant flows through the first groove 124 between the sleeve 13 and the rotor 12 to fill the gap between the sleeve 13 and the rotor 12. Because the lubricant has viscosity, 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 rotation, and after the rotor 12 rotates one revolution and returns to the initial position to communicate with the third through hole 133 and the fourth through hole 134, the first groove 124 can be replenished with lubricant, and thus 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. Thus, a lubrication channel is formed to facilitate the addition of lubricant between the rotor 12 and the sleeve 13.

[0049] Further, referring to Figure 5 , the first passage 132 and the second passage 135 are in communication. The first passage 132, the second passage 135, the first groove 124, the third through hole, and the fourth through hole together form a loop, and thus the lubricant can circulate in the loop, thereby effectively expelling gas in the lubrication channel and allowing the lubricant to better lubricate the rotor and the sleeve.

[0050] Further, the first groove 124 communicates with the third through hole 133 and the fourth through hole 134 at both ends of the first groove 124 along the extension direction of the first groove 124, so as to facilitate the expulsion of gas in the first groove 124, allowing the lubricant to better fill the first groove 124, and thus 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 the same 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 greater than the cross-sectional area of the first power cylinder communication port 111 and the second power cylinder communication port 112. In this way, the amount of gas entering the housing 11 and the lumen 125 through the first compression cylinder connection port 113 is greater than the amount of gas flowing out through the first power cylinder communication port 111 or the second power cylinder communication port 112, and thus when the first slot hole 123 is rotated to be in communication with the first power cylinder communication port 111 or the second power cylinder communication port 112, the amount of gas flowing out through the first power cylinder communication port 111 or the second power cylinder communication port 112 is greater, thereby helping to improve the combustion efficiency of the dual-rotor engine 20.

[0053] In some embodiments, referring to Figure 2 , the housing 11 further has a second compression cylinder connection port 117, the second compression cylinder connection port 117 being in communication with the lumen 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 power cylinder communication port 111 and the second power cylinder communication port 112. The provision of the second compression cylinder connection port 117 helps to adapt to different working conditions of the dual-rotor engine 20, and helps to improve the versatility of the reversing valve 10. By increasing the number of inlets, the amount of intake air entering the housing 11 and the lumen 125 is increased. Moreover, 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 power cylinder communication port 111 and the second power cylinder communication port 112, which helps to further increase the amount of gas entering the housing 11 and the lumen 125 through the first compression cylinder connection port 113 and the second compression cylinder connection port 117, and further increase the amount of gas flowing out through the first power cylinder communication port 111 or the second power cylinder communication port 112, and thus when the first slot hole 123 is rotated to be in communication with the first power cylinder communication port 111 or the second power cylinder communication port 112, the amount of gas flowing out through the first power cylinder communication port 111 or the second power cylinder communication port 112 is further increased, thereby helping to improve the combustion efficiency of the dual-rotor engine 20.

[0054] In some specific embodiments, referring to Figure 2 , the housing 11 is provided with a second chamber 118, the second chamber 118 being in communication with the first compression cylinder connection port 113 and the second compression cylinder connection port 117, and the lumen 125 being in communication with the second chamber 118. By providing the second chamber 118, the space for storing air in the housing 11 is 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, and thus when the first slot hole 123 is in communication with the first power cylinder communication port 111 or the second power cylinder communication port 112, the amount of gas flowing out through the first power cylinder communication port 111 or the second power cylinder communication port 112 is more sufficient, and thus the combustion efficiency of the dual-rotor engine 20 can be improved.

[0055] The utility model embodiment further provides a double rotor engine 20, refer to Figure 6 The reversing valve 10 of any one of the above and the double rotor engine 20 are communicated, the double rotor engine includes compression cylinder 21, working cylinder 22 and combustion chamber 24;The first compression cylinder connecting port 113 and the compression cylinder 21 are communicated, the first working cylinder communication port 111 and the second working cylinder communication port 112 are communicated with the combustion chamber 24 respectively, and the combustion chamber 24 is communicated with the working cylinder 22.The compression cylinder 21 compresses gas and sends the gas into the reversing valve 10, and then is delivered to the combustion chamber 24 through the second working cylinder communication port 112 or the second working cylinder communication port 112 in the reversing valve 10, and explodes and generates expansion gas, and the working cylinder 22 is driven by the expansion gas.The setting combustion chamber 24 helps the fuel and compressed air to mix and burn fully, and then outputs greater power.The reversing valve 10 is easy to control, and therefore can cooperate with the ignition timing of the double rotor engine 20 and can be controlled together, so that the double rotor engine 20 can run smoothly.

[0056] The double rotor engine 20 provided by the utility model embodiment controls the airflow between the compression cylinder 21 and the working cylinder 22 through the reversing valve 10 of any one of the above, and the reversing valve 10 has high reversing frequency, short reversing time and is easy to control, can be matched with the double rotor engine, so that the ignition timing of the double rotor engine 20 provided by the utility model embodiment is controllable, the expansion gas generated by explosion does not backflow, and the recoil force generated when the expansion gas drives the working cylinder 22 is blocked by the reversing valve 10 and does not affect the compression cylinder 21, so that the double rotor engine 20 works smoothly, can guarantee higher efficiency and faster speed.

[0057] In some embodiments, refer to Figure 6 And Figure 7 The double rotor engine 20 further includes the first main shaft 23 and the transmission assembly, the first main shaft 23 is drivingly connected with the working cylinder 22, and the rotor 12 is drivingly connected with the first main shaft 23 through the transmission assembly.It can be understood that the working cylinder 22 is drivingly connected with the first main shaft 23 to output power outward.

[0058] The compression cylinder 21 works to suck in gas from outside into the compression cylinder 21 to realize the 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, the compressed gas enters the housing and the lumen 125 through the first compression cylinder connecting port 113; the rotor 12 rotates to the first slot hole 123 to be in communication with the first working cylinder connecting port 111, the compressed gas enters the combustion chamber 24 through the first slot hole 123 and the first working cylinder connecting port 111, the compressed gas mixes with the fuel and ignites, 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 shaft 23 rotates and outputs power, the first main shaft 23 drives the rotor 12 to continue to rotate, and because the rotor 12 keeps rotating, when burning, the first slot hole 123 is disconnected from the first working cylinder connecting port 111, and the high-temperature and high-pressure gas generated by burning is blocked by the rotor 12 and is difficult to flow back into the lumen 125 and the compression cylinder 21; the exhaust gas after burning is discharged from the working cylinder 22, completing a working process to prepare for the next working; the compression cylinder 21 continues to work to realize the intake; the compression cylinder 21 compresses the gas entering therein and sends it into the reversing valve; the rotor 12 rotates, the first slot hole 123 is disconnected from the first working cylinder connecting port 111, the rotor 12 continues to rotate to the second working cylinder connecting port 112, the compressed gas enters the combustion chamber 24 through the second working cylinder connecting port 112; in the combustion chamber 24, the compressed gas mixes with the fuel to generate high-temperature and high-pressure gas, which pushes the working cylinder 22 to work, so that the first main shaft 23 rotates and outputs power, the first main shaft 23 drives the rotor 12 to continue to rotate, and because the rotor 12 keeps rotating, when burning, the first slot hole 123 is disconnected from the second working cylinder connecting port 112, and the high-temperature and high-pressure gas generated by burning is blocked by the rotor 12 and is difficult to flow back into the lumen 125 and the compression cylinder 21; the exhaust gas after burning is discharged from the working cylinder 22, completing a working process to prepare for the next working, through the above actions, the dual-rotor engine 20 realizes the working cycle and realizes smooth operation through the reversing valve 10.

[0059] That is, the rotor 12 can cooperate with the working of the working cylinder 22 to make the operation of the dual-rotor engine 20 more smooth, so that the timing between the reversing valve 10, the working cylinder 22 and the combustion chamber 24 can be realized, and the intake, compression, working and other work of the dual-rotor engine 20 can be better coordinated with the reversing valve 10, thereby protecting the dual-rotor engine 20 and improving the efficiency of the dual-rotor engine 20.

[0060] In some specific embodiments, referring to Figure 6, the 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 communicated with the first combustion chamber, the second working cylinder is communicated with the second combustion chamber, the first working cylinder communication port 111 is communicated with the first combustion chamber, and the second working cylinder communication port 112 is communicated with the second combustion chamber. The compressed gas is transported from the first compression cylinder connection port 113 to the reversing valve 10 through the first compression cylinder connection port 113, the rotor 12 is in transmission connection with the first main shaft 23 to cooperate with rotation, the first groove hole 123 rotates with the first main shaft 23 to switch the communication between the first working cylinder communication port 111 and the second working cylinder communication port 112. When the first groove hole 123 is rotated to be communicated with the first working cylinder communication port 111, the compressed gas enters the first combustion chamber through the first groove hole 123 and the first working cylinder communication 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, when the compressed gas enters the first combustion chamber, the first groove hole 123 continues to rotate to be disconnected with the first working cylinder communication port 111, at this time, the first working cylinder communication port 111 is blocked and closed by the rotor 12, at this time, fuel is injected into the combustion chamber 24 to mix with the compressed gas, and then ignition, the fuel explodes to generate high-temperature and high-pressure explosion gas, and because the first working cylinder communication port 111 is blocked by the rotor at this time, the high-temperature and high-pressure explosion gas cannot flow into the cavity 125 and the compression cylinder 21, which helps to protect the cavity 125 and the compression cylinder 21, and also cannot weaken the impact force of the explosion gas due to the flow of the explosion gas into the reversing valve 10 and the compression cylinder 21, thereby helping to improve the impact force of the explosion gas on the working cylinder 22 and improving 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 shaft 23 to rotate, and the first main shaft 23 outputs power to the outside and drives the rotor 12 to continue to rotate. The rotor 12 continues to rotate and is communicated 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 arranging two sets of working cylinder 22 and combustion chamber 24 combinations, it is helpful to increase the power output, thereby improving the efficiency of the dual-rotor engine 20, making the dual-rotor engine 20 run more smoothly, and at the same time, the reversing valve 10 also helps to avoid damage to the reversing valve 10 itself and the first compression cylinder and the second compression cylinder by the explosion gas.

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

[0062] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the disclosed technical content without departing from the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A reversing valve (10) for a dual-rotor engine (20), characterized in that, The application relates to a reversing valve (10) comprising: a housing (11) formed with a first working cylinder connecting port (111), a second working cylinder connecting port (112), a first compression cylinder connecting port (113) and a first chamber (114), the first working cylinder connecting port (111) and the second working cylinder connecting port (112) being in communication with the first chamber (114) respectively; a rotor (12) rotatably arranged in the first chamber (114), the rotor having a tubular cavity (125) in communication with the first compression cylinder connecting port (113), and the rotor further having a first slot hole (123) in communication with the tubular cavity (125), the first slot hole (123) being selectively in communication with one of the first working cylinder connecting port (111) and the second working cylinder connecting 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) fixedly arranged in the first chamber (114), the shaft sleeve (13) being provided with two second slot holes (131) in communication with the first working cylinder connecting port (111) and the second working cylinder connecting port (112) respectively, and the rotor (12) is rotatably arranged in the shaft sleeve (13), the first slot hole (123) being selectively in communication with 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 lubricating channel 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), the shaft sleeve is provided with a first channel (132) and a second channel (135) on a surface thereof facing the housing (11), the first through hole (115) is in communication with the first channel (132), and the second through hole (116) is in communication with the second channel (135); the shaft sleeve is further provided with a third through hole (133) and a fourth through hole (134), one side of the rotor (12) facing the shaft sleeve (13) is provided with a first recess (124), the third through hole (133) is in communication with the first channel (132) and the first recess (124), and the fourth through hole (134) is in communication with the second channel (135) and the first recess (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) jointly form the lubricating 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) on the side facing the rotor (12) is provided with a circular arc, and the center of the circular 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 connecting port (113) is greater than that of the first working cylinder connecting port (111) and the second working cylinder connecting port (112).

8. The reversing valve (10) according to claim 1, characterized in that The shell (11) further has a second compression cylinder connecting port (117) which communicates with the lumen (125), and the sum of the sectional areas of the first compression cylinder connecting port (113) and the second compression cylinder connecting port (117) is greater than the sum of the sectional areas of the first working cylinder connecting port (111) and the second working cylinder connecting port (112).

9. A dual rotor engine (20) characterized by, The reversing valve (10) of any one of claims 1-8 communicates with the dual-rotor engine (20) which comprises a compression cylinder (21), a working cylinder (22) and a combustion chamber (24); the first compression cylinder connecting port (111) communicates with the compression cylinder (21), the first working cylinder connecting port (111) and the second working cylinder connecting port (112) respectively communicate with the combustion chamber (24), and the combustion chamber (24) communicates with the working cylinder (22).

10. The dual-rotor engine of claim 9, wherein, The dual-rotor engine (20) further comprises a first main shaft (23) and a transmission assembly, the first main shaft (23) is in driving connection with the working cylinder (22), and the rotor (12) is in driving connection with the first main shaft (23) through the transmission assembly.

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