Tesla valve and one-way pipe

Abstract

A Tesla valve, the Tesla valve comprises a main channel and a diverter island 3, the diverter island 3 is arranged on both sides of the main channel, the diverter island 3 forms a first diverter channel 7 on both sides of the main channel, the main channel has a forward interface 1 and a reverse interface 2, the resistance of the same fluid flowing out of the main channel from the reverse interface 2 through the main channel is greater than the resistance of the same fluid flowing out of the main channel from the forward interface 1 through the main channel, there is a gap between the diverter end 4 of the diverter island 3 facing the reverse interface 2 and the base 6, and it can swing into the main channel, and a one-way tube.

Description

Technical Field

[0001] The present application relates to the field of fluid control technology, and in particular to a Tesla valve and a one-way pipe. Background Art

[0002] In 1920, the great scientist Nikola Tesla invented a one-way valve, which was later called the Tesla valve. It has an ingenious structural design. The fluids in the main channel and the sub-channel in its internal structure interact with each other, thereby accelerating or decelerating the fluid. The Tesla valve has very different effects on high-speed fluids and high-frequency pulsating fluids passing through it from different directions, but has less effect on low-speed fluids and low-frequency pulsating fluids passing through it from different directions. This has affected the application of the Tesla valve in many fields, so it needs to be improved. Summary of the invention

[0003] The purpose of the present application is to provide a Tesla valve and a one-way tube to increase the resistance difference between the Tesla valve and the one-way tube for the forward and reverse flows of the fluid.

[0004] In order to achieve the above-mentioned purpose, the present application is implemented through the following technical solutions: a Tesla valve, the Tesla valve includes a main channel and a diverter island 3, the diverter island 3 is arranged on one side or both sides of the main channel, the diverter island 3 forms a first diverter channel 7 on the side of the main channel, the main channel has a forward interface 1 and a reverse interface 2, the resistance of the same fluid flowing out of the reverse interface 2 through the main channel is greater than the resistance of the same fluid flowing out of the main channel through the forward interface 1, and there is a gap between the diverter end 4 of the diverter island 3 facing the reverse interface 2 and the base 6, so that it can swing into the main channel.

[0005] The diversion end 4 is elastic.

[0006] The branch end 4 protrudes from the main channel.

[0007] A one-way pipe, the one-way pipe comprises at least one one-way pipe unit 5, the one-way pipe unit 5 comprises a main pipe wall 51, a shunt pipe 52 and a bracket 53, the main pipe wall 51 is in the shape of a hollow cone with a central through hole, one end is thin and the other end is thick, the shunt pipe 52 is in the shape of a trumpet with a central through hole, one end is thin and the other end is thick, the shunt pipe 52 is suspended and fixed inside the main pipe wall (51) through the bracket 53, the shunt pipe 52 and the main pipe wall 51 are arranged in the same direction, the shunt pipe 52 and the main pipe wall 51 are arranged coaxially, the shunt pipe 52 and the central through hole of the main pipe wall 51 form a main channel, the main channel has a forward interface 1 and a reverse interface 2, a second shunt channel 54 with a "U"-shaped cross-section is formed between the shunt pipe 52 and the main pipe wall 51, the end of the shunt pipe 52 close to the reverse interface 2 of the main channel is a shunt pipe opening 521, and the shunt pipe opening 521 is elastic.

[0008] The diversion pipe opening 521 protrudes from the main channel.

[0009] The diversion pipe opening 521 is in a wave shape.

[0010] The beneficial effect of the present application is that by using a Tesla valve and a one-way tube as described in the present application, the flow size of the main channel can be changed by means of an internal structure capable of changing the caliber, and the resistance difference between the Tesla valve and the one-way tube for the fluid flowing therethrough in the forward and reverse directions can be further increased, thereby achieving more applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of a common Tesla valve structure in the prior art;

[0012] Figure 2 A schematic diagram of the appearance of a Tesla valve for this application;

[0013] Figure 3 This is a schematic diagram of the cross-sectional structure of a Tesla valve diverter island in this application;

[0014] Figure 4 A schematic diagram of a Tesla valve free state for this application;

[0015] Figure 5 A schematic diagram of reverse flow of fluid in a Tesla valve for this application;

[0016] Figure 6 A schematic diagram of the forward flow of fluid in a Tesla valve for this application;

[0017] Figure 7 This is a schematic diagram of the appearance of a one-way tube for this application;

[0018] Figure 8 This is a schematic diagram of a one-way pipe unit structure for this application;

[0019] Fig. 9 This is a schematic diagram of the appearance of a shunt tube in this application;

[0020] Fig.10 A schematic diagram of a one-way pipe cross section for this application;

[0021] Fig.11 A schematic diagram of a one-way pipe cross section for this application;

[0022] In the figure: 1-forward interface, 2-reverse interface, 3-diverter island, 4-diverter end, 5-diverter tube unit, 6-base, 7-first diverter channel, 51-main tube wall, 52-diverter tube, 521-diverter tube outlet, 53-bracket, 54-second diverter channel. DETAILED DESCRIPTION

[0023] The present application is further described below in conjunction with specific embodiments. Figure 1 Schematic diagram of a common Tesla valve structure in the prior art; from the figure, it can be seen that the structure of the Tesla valve in the prior art, which has an asymmetric or symmetric structure, can achieve the effect of having different resistances for fluids entering the Tesla valve from different directions. The principle is well known to those skilled in the art and will not be described here.

[0024] Figure 2 This is a schematic diagram of the appearance of a Tesla valve in the present application; this figure shows that the main channel of the Tesla valve has a forward interface 1 and a reverse interface 2, and a diverter island 3 is arranged on both sides of the main channel between the forward interface 1 and the reverse interface 2. The diverter island 3 forms a "U"-shaped first diverter channel 7 on the side of the main channel, and the main channel and the first diverter channel 7 are arranged on a base 6. A diverter end 4 is arranged at one end of the diverter island 3 facing the reverse inlet 2. The flow resistance of the Tesla valve of this embodiment to the fluid entering and passing through the Tesla valve from the reverse interface 2 is greater than the flow resistance of the fluid entering and passing through the Tesla valve from the forward interface 1. There is a gap between the diverter end 4 and the base 6, the diverter end 4 is elastic and can swing toward the main channel, and the diverter end 4 protrudes into the main channel.

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of a Tesla valve diversion island in this application; this figure is attached Figure 2 The cross-sectional view of the middle diverter island 3 viewed from the main channel direction shows that the diverter island 3 is fixed on the base 6, and there is a gap between the diverter end 4 and the base 6. The diverter end 4 is elastic, so the diverter end 4 can swing toward the main channel or the first diverter channel 7 under the action of external force.

[0026] Figure 4 This is a schematic diagram of a Tesla valve free state in this application; this figure is attached Figure 2 The top view can more clearly show the structural features of the Tesla valve described in the present application, and the diverter end 4 of the diverter island 3 protrudes from the inside of the main channel.

[0027] See attached Figure 5, the fluid enters from the reverse interface 2 of the Tesla valve. When the fluid encounters the diverter end 4, since the diverter end 4 is inclined and protrudes inside the main channel, and the diverter end 4 is elastic, the fluid has kinetic energy and acts on the diverter end 4 to push the diverter end 4 to bend into the main channel, thereby reducing the cross-sectional area of ​​the main channel at the position of the diverter end 4, reducing the flow rate of the fluid in the main channel, and the fluid is forced to enter the first diverter channel 7. Since the first diverter channel 7 has a longer length than the main channel, the flow resistance of the fluid in the first diverter channel 7 is greater than the flow resistance of the main channel. At the same time, the flow direction of the fluid after passing through the first diverter channel 7 is opposite to the flow direction of the fluid in the main channel, that is, the more fluid passes through the first diverter channel 7, the more fluid flow directions will be opposite to the flow direction of the fluid in the main channel, and also opposite to the direction in which the fluid enters the Tesla valve, and the fluid generates more collision vortices when it returns to the main channel to further increase the fluid flow resistance. Therefore, compared with the prior art, the diverter end 4 can generate greater resistance, and the velocity of the fluid in the main channel increases due to the reduction in the cross-sectional area of ​​the main channel, which also prompts the diverter end 4 to bend into the main channel.

[0028] See attached Figure 6 , the fluid enters from the forward interface 1 of the Tesla valve, and when the fluid encounters the diversion end 4, since the diversion end 4 is inclined and protrudes inside the main channel, and the diversion end 4 is elastic, the fluid has kinetic energy and acts on the diversion end 4 to push the diversion end 4 to bend into the first diversion channel 7, thereby increasing the cross-sectional area of ​​the main channel at the position of the diversion end 4, reducing the flow resistance of the fluid in the main channel, and the fluid passes through the main channel at a faster speed and more flow, and part of the fluid enters the first diversion channel 7. Since the first diversion channel 7 has a longer length than the main channel, the flow resistance of the fluid in the first diversion channel 7 is greater than the flow resistance of the main channel, so most of the fluid flows from the main channel; compared with the prior art, the diversion end 4 is set, and the Tesla valve of the technical solution of the present application can produce a larger resistance difference for fluids entering and passing through the Tesla valve from different directions.

[0029] The diverter island 3 and the diverter end 4 can be made of a variety of elastic materials, such as rubber, silicone, stainless steel or carbon fiber composite materials.

[0030] Figure 7 This is a schematic diagram of the appearance of a one-way tube in the present application; the one-way tube has a forward interface 1 and a reverse interface 2, and the one-way tube is provided with three one-way tube units 5. In actual applications, more one-way tube units 5 can be provided as needed.

[0031] Figure 8Schematic diagram of a one-way pipe unit structure of the present application; the one-way pipe unit 5 includes a main pipe wall 51, a shunt pipe 52 and a bracket 53, the main pipe wall 51 is a hollow cone with a central through hole at one end and a thicker end at the other end, the shunt pipe 52 is a trumpet with a central through hole at one end and a thicker end at the other end, the shunt pipe 52 is suspended and fixed inside the main pipe wall 51 by the bracket 53, the shunt pipe 52 and the main pipe wall 51 are arranged in the same direction, the shunt pipe 52 and the main pipe wall 51 are arranged coaxially, and the shunt pipe 52 and the main pipe wall The central through hole of 51 forms a main channel, and the main channel has a forward interface 1 and a reverse interface 2. A second diverter channel 54 with a "U"-shaped cross-section is formed between the diverter tube 52 and the main pipe wall 51. The end of the diverter tube 52 close to the reverse interface 2 of the main channel is a diverter tube port 521. The diverter tube port 521 is elastic and can be made of materials such as rubber or silicone. It can be deformed when subjected to external force and change its diameter. The diverter tube 52 can be a solid or hollow structure, and the hollow structure shown in this figure is.

[0032] Fig. 9 This is a schematic diagram of the appearance of a diverter tube in the present application; the diverter tube 52 shown in this figure is provided with a wavy diverter tube port 521, and the wavy structure is conducive to the expansion and contraction of the diverter tube port 521. In addition to being made of elastic materials such as rubber or silicone, the diverter tube port 521 with the wavy structure in this figure can also be made of metal materials such as stainless steel or titanium alloy, and can also be made of plastic or composite materials, so that the one-way tube is suitable for more different types of fluids, such as oily, aqueous, acidic and alkaline fluids, etc.

[0033] Fig.10 This is a cross-sectional diagram of a one-way tube of the present application; the attached material used inside the one-way tube shown in this figure is Figure 8The shunt pipe 52 shown in the figure can be seen that the shunt pipe mouth 521 protrudes from the main channel, the shunt pipe mouth 521 is in a free state, the diameter of the shunt pipe mouth 521 is smaller than the diameter of the main channel at the position, and the fluid enters from the reverse interface 2 of the one-way pipe. When the fluid encounters the shunt pipe mouth 521, since the shunt pipe mouth 521 is inclined and protrudes inside the main channel, and the shunt pipe mouth 521 is elastic, the fluid has kinetic energy and acts on the shunt pipe mouth 521 to push the shunt pipe mouth 521 to bend and shrink into the main channel, the diameter of the shunt pipe mouth 521 is reduced, and the cross-sectional area of ​​the main channel at the position of the shunt pipe mouth 521 is reduced, thereby reducing The flow rate of the fluid in the main channel is forced to enter the second branch channel 54. Since the second branch channel 54 is longer than the main channel, the flow resistance of the fluid in the second branch channel 54 is greater than the flow resistance in the main channel. At the same time, the flow direction of the fluid after passing through the second branch channel 54 is opposite to the flow direction of the fluid in the main channel, that is, the more fluid passes through the second branch channel 54, the more the flow direction of the fluid will be opposite to the direction of the fluid flowing in the main channel, and also opposite to the direction of the fluid entering the one-way tube. At the same time, the fluid after passing through the second branch channel 54 will generate more collision vortices when it returns to the main channel, further increasing the flow resistance of the fluid. The velocity of the fluid in the main channel increases because the cross-sectional area of ​​the main channel at the position of the diversion nozzle 521 is reduced, and the pressure of the fluid flowing through this position is reduced, which also causes the diversion nozzle 521 to bend into the main channel and to shrink. Therefore, compared with the prior art, the one-way tube is provided with the diversion nozzle 521 described in the present application, which can generate greater resistance; the fluid enters from the positive interface 1 of the one-way tube, and when the fluid encounters the diversion nozzle 521, because the diversion nozzle 521 is inclined and protrudes inside the main channel, and the diversion nozzle 521 is elastic, the fluid has kinetic energy and acts on the diversion nozzle 521 to push the diversion nozzle 521 to the second diversion channel 54 expands, the diameter of the branch pipe mouth 521 increases, and the diameter and cross-sectional area of ​​the main channel at the branch pipe mouth 521 are increased, reducing the flow resistance of the fluid in the main channel, and the fluid passes through the main channel at a faster speed and with a larger flow rate, and part of the fluid enters the second branch channel 54. Since the second branch channel 54 is longer than the main channel, the flow resistance of the fluid in the second branch channel 54 is greater than the flow resistance of the main channel, so most of the fluid flows from the main channel; compared with the prior art, the branch pipe mouth 521 is set, and the one-way tube of the technical solution of the present application can produce a larger resistance difference for the fluid entering and passing through the one-way tube from different directions.

[0034] Fig.11 This is a cross-sectional diagram of a one-way tube of the present application; the attached material used inside the one-way tube shown in this figure is Fig. 9 The shunt pipe 52 of the structure shown in the figure can be seen from the figure that the shunt pipe opening 521 is wavy, and the wavy structure makes it closer to the Figure 8The diverter pipe 521 shown in the figure has a larger expansion and contraction range, which increases the variation range of the cross-sectional area of ​​the main channel in the one-way pipe and increases the variation of the fluid flow in the main channel in the one-way pipe, which is the same as the above-mentioned Fig.10 The same principle as described above, the one-way tube of the present figure can produce a greater resistance difference for fluids entering and passing through the one-way tube from different directions, and its specific principle will not be repeated here. At the same time, in addition to using materials such as rubber and silicone that have good elasticity, the structure shown in the present figure also allows the diversion nozzle 521 to be made of some rigid materials, such as thin stainless steel, titanium alloy or carbon fiber composite materials. Such materials themselves have very small tensile elasticity and are not suitable for attachment. Figure 8 The structure of the diverter nozzle 521 is shown in FIG. Fig. 9 The structure of the diverter pipe outlet 521 shown in the figure can be used in some special environments, such as the high temperature and high pressure environment such as the air intake of a jet engine, because stainless steel and titanium alloy materials can withstand higher temperatures and have higher strength than materials such as rubber.

[0035] It is understandable that the size ratios of the various components in the embodiments described in the present application are not drawn completely according to the actual ratios, and those skilled in the art can understand and implement the relevant contents. The directional terms such as upper, lower, inner and outer described in the present application are used to illustrate and understand the structure of the drawings and the present application, and are not used to limit the technical solution of the present application.

[0036] The first and second terms mentioned in this application are used to illustrate but not to limit this application.

[0037] The present application will not describe in detail the principles and structures known to those skilled in the art other than the above contents.

[0038] The shapes of the drawings of the embodiments of the present application are used to illustrate the use of the present application. The present application is described here only through selected embodiments. Therefore, it is obvious that the above-mentioned embodiments are used to illustrate rather than to limit the present application.

Claims

1. A Tesla valve, comprising a main channel and a diverter island (3), wherein the diverter island (3) is arranged on one side or both sides of the main channel, the diverter island (3) forms a first diverter channel (7) on the side of the main channel, the main channel has a forward interface (1) and a reverse interface (2), the resistance of the same fluid flowing out of the reverse interface (2) through the main channel is greater than the resistance of the same fluid flowing out of the forward interface (1) through the main channel, and the valve is characterized in that: There is a gap between the diversion end (4) of the diversion island (3) facing the reverse interface (2) and the base (6), so that it can swing into the main channel.

2. A Tesla valve according to claim 1, characterized in that: The diversion end (4) is elastic.

3. A Tesla valve according to claim 1, characterized in that: The branching end (4) protrudes from the main channel.

4. A one-way pipe, the one-way pipe comprising at least one one-way pipe unit (5), the one-way pipe unit (5) comprising a main pipe wall (51), a shunt pipe (52) and a bracket (53), the main pipe wall (51) being in the shape of a hollow cone with a central through hole, one end being thin and the other end being thick, the shunt pipe (52) being in the shape of a trumpet with a central through hole, one end being thin and the other end being thick, the shunt pipe (52) being suspended and fixed inside the main pipe wall (51) by the bracket (53), the shunt pipe (52) and the main pipe wall (51) being arranged in the same direction, the shunt pipe (52) and the main pipe wall (51) being arranged coaxially, the shunt pipe (52) and the central through hole of the main pipe wall (51) forming a main channel, the main channel having a forward interface (1) and a reverse interface (2), a shunt channel (54) with a "U"-shaped cross section being formed between the shunt pipe (52) and the main pipe wall (51), characterized in that: One end of the diverter pipe (52) close to the main channel reverse interface (2) is a diverter pipe opening (521), and the diverter pipe opening (521) is elastic.

5. A one-way tube according to claim 4, characterized in that: The diversion pipe opening (521) protrudes from the main channel.

6. A one-way tube according to claim 4, characterized in that: The diversion pipe opening (521) is wavy in shape.

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