Single-shaft multi-channel valve

Abstract

The invention discloses a single-shaft multi-channel valve which comprises a valve seat, a valve group and a driving part, the valve seat is provided with a plurality of fluid channels which are sequentially arranged at intervals. The valve group comprises a rotating shaft and a plurality of valve plates, the rotating shaft is rotatably mounted on the valve seat around the axis of the rotating shaft and sequentially penetrates through the plurality of fluid channels, the plurality of valve plates are respectively arranged in the plurality of fluid channels and mounted on the rotating shaft, each valve plate can adjust the opening degree of the matched fluid channel when rotating along with the rotating shaft, at least two valve plates are arranged at intervals in the circumferential direction of the rotating shaft, and the valve plates are arranged in the fluid channels. A phase angle is formed; the driving part is in driving connection with the rotating shaft and used for driving the rotating shaft to rotate around the axis. According to the scheme, gas circulation switching in two or more fluid channels can be achieved, gas in the multiple fluid channels can circulate in proportion by flexibly adjusting the opening degree of the valve plate, and the flexibility of applicable working conditions is improved; valves do not need to be independently arranged on a plurality of pipelines, so that the cost is saved, the control logic is simplified, and the reliability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of valve bodies for engines, and in particular to a single-axis multi-channel valve. Background Art

[0002] When the outside ambient temperature is low, if the pressurized air is still cooled through the intercooler, it may cause the engine intake temperature to be too low, which will have an adverse effect on engine performance.

[0003] Patent CN112012826A discloses a method, device and system for intercooler bypass thermal management, which is provided with a bypass pipe and an intercooler pipe, the bypass pipe is connected to the air intake of the engine, and a bypass valve is provided on it; and the intercooler pipe is connected to the air intake of the engine, and an intercooler and a throttle valve are provided on it, so that the opening of the bypass valve and the throttle valve can be flexibly controlled to control the ratio of the supercharged air entering the engine and the air cooled by the intercooler, thereby ensuring that the air temperature entering the engine is appropriate.

[0004] However, in this patent, two independent valves are set up to control the opening of the two pipelines, which is relatively costly, has complex control logic and low reliability. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose a single-axis multi-channel valve to solve the technical problems in the prior art of controlling the opening of multiple pipelines by setting up multiple independent valves, which has relatively high cost, complex control logic and low reliability.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a uniaxial multi-channel valve, comprising: A valve seat having a plurality of fluid channels, wherein the plurality of fluid channels are sequentially spaced apart; A valve group, comprising a rotating shaft and a plurality of valve plates, wherein the rotating shaft is rotatably mounted on the valve seat around its axis and penetrates a plurality of the fluid channels in sequence, wherein the plurality of valve plates are respectively placed in the plurality of the fluid channels and mounted on the rotating shaft, wherein each of the valve plates can adjust the opening of the corresponding fluid channel when rotating with the rotating shaft, wherein at least two of the valve plates are spaced apart along the circumference of the rotating shaft to form a phase angle; and The driving part is connected to the rotating shaft and is used to drive the rotating shaft to rotate around its axis.

[0007] In one embodiment, the valve group is provided in a plurality of groups, each of the valve groups can be selectively assembled on the valve seat, and the phase angles of the valve plates of the plurality of groups are arranged differently.

[0008] In one embodiment, the valve seat has a cooling water jacket and two water jacket ports. The cooling water jacket is arranged around the periphery of each of the fluid channels. The two water jacket ports are respectively connected to the cooling water jacket and the outside.

[0009] In one embodiment, the driving part includes a driving motor, the base of the driving motor is fixed to the valve seat, and the output shaft is drivingly connected to the rotating shaft for driving the rotating shaft to rotate around its axis, and the cooling water jacket at least partially extends to a position adjacent to the base.

[0010] In one embodiment, the driving unit also includes a reset spring, which is connected to the valve seat and the rotating shaft, and has a torque greater than the starting torque of the driving motor and less than the rotational torque of the driving motor, so as to reset the rotating shaft to an initial position when the driving motor stops.

[0011] In one embodiment, the plurality of fluid channels include a first channel and a plurality of second channels, the first channel and the plurality of second channels are arranged in sequence, the valve plate in the first channel is a first valve plate, the valve plate in the second channel is a second valve plate, the first valve plate and the second valve plate have a phase angle, and the plurality of second valve plates are arranged in the same direction on the rotating shaft; Wherein, the temperature of the fluid in the first channel is different from the temperature of the fluid in the second channel.

[0012] In one embodiment, the driving part is fixed to the valve seat, the first channel and the plurality of second channels are arranged in sequence in a direction away from the driving part, and the temperature of the fluid in the first channel is lower than the temperature of the fluid in the second channel.

[0013] In one embodiment, the cross-sectional area of ​​the first channel is greater than the cross-sectional area of ​​the second channel.

[0014] In one embodiment, the valve seat, the rotating shaft and the valve plate are all made of high temperature resistant and corrosion resistant materials.

[0015] In one embodiment, the valve plate is arranged in a streamlined shape from the middle to the end edge.

[0016] Compared with the prior art, when using the single-axis multi-channel valve provided by the present invention, the multiple fluid channels of the valve seat are connected to multiple pipelines respectively. Since the valve plates in the multiple fluid channels are all installed on the same rotating shaft, and a phase angle is left between at least two valve plates, the multiple valve plates can be driven to rotate simultaneously through the same rotating shaft, and when one valve plate is in a state to make the corresponding fluid channel fully open, the remaining valve plates can make the other fluid channels fully closed or maintain a partial opening. In this way, the gas flow switching in two or more fluid channels can be realized, and the proportional flow of gas in multiple fluid channels can be realized by flexibly adjusting the valve plate opening, thereby improving the flexibility of applicable working conditions; and there is no need to independently set valves on multiple pipelines, saving costs, simplifying control logic, and improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a uniaxial multi-channel valve (provided with two fluid channels) provided in an embodiment of the present invention; Figure 2 yes Figure 1 Schematic diagram of the valve seat, rotating shaft and valve plate; Figure 3 is a schematic diagram of a uniaxial multi-channel valve (provided with three fluid channels) provided in another embodiment of the present invention; Figure 4 yes Figure 3 A cross-sectional view of a single-axis multi-channel valve; Figure 5 yes Figure 3 Schematic diagram of the valve seat, rotating shaft and valve plate.

[0018] Description of reference numerals: 1. Valve seat; 11. Fluid channel; 111. First channel; 112. Second channel; 12. Cooling water jacket; 13. Water jacket port; 2. Rotating shaft; 3. Valve plate; 31. First valve plate; 32. Second valve plate; 4. Driving unit; 41. Driving motor. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] In order to solve the technical problems in the prior art of controlling the opening of multiple pipelines by setting up multiple independent valves, which has relatively high cost, complex control logic and low reliability, the present invention provides a single-axis multi-channel valve, which can realize the switching of gas flow in two or more fluid channels, and can also realize proportional flow of gas in multiple fluid channels by flexibly adjusting the valve opening, thereby improving the flexibility of applicable working conditions; and there is no need to independently set valves on multiple pipelines, which saves costs, simplifies the control logic and improves reliability.

[0021] It should be noted that the single-axis multi-channel valve described in the present invention is used for but not limited to engine intake systems, etc. For the sake of convenience of explanation, in the present invention, only the single-axis multi-channel valve applied to the engine intake system is used as an example for explanation, and the principle of applying the single-axis multi-channel valve to other types of equipment is essentially the same as the principle applied to the engine intake system, which will not be repeated here.

[0022] See also Figure 1 and Figure 2 , Figure 1 and Figure 2 It is a structural schematic diagram of a uniaxial multi-channel valve in an embodiment of the present invention, wherein the uniaxial multi-channel valve comprises a valve seat 1, a valve group and a driving unit 4; the valve seat 1 has a plurality of fluid channels 11, and the plurality of fluid channels 11 are arranged in sequence at intervals; the valve group comprises a rotating shaft 2 and a plurality of valve plates 3, the rotating shaft 2 is installed on the valve seat 1 so as to rotate around its axis, and a plurality of fluid channels 11 are sequentially penetrated, the plurality of valve plates 3 are respectively placed in the plurality of fluid channels 11, and are installed on the rotating shaft 2, each valve plate 3 can adjust the opening of the corresponding fluid channel 11 when following the rotation of the rotating shaft 2, wherein at least two valve plates 3 are arranged at intervals along the circumference of the rotating shaft 2 to form a phase angle; the driving unit 4 is drivingly connected to the rotating shaft 2, and is used for driving the rotating shaft 2 to rotate around its axis.

[0023] When using the single-axis multi-channel valve provided by the present invention, the multiple fluid channels 11 of the valve seat 1 are connected to multiple pipelines respectively. Since the valve plates 3 in the multiple fluid channels 11 are all installed on the same rotating shaft 2, and there is a phase angle between at least two valve plates 3, the multiple valve plates 3 can be driven to rotate simultaneously through the same rotating shaft 2, and when one valve plate 3 is in a state to make the corresponding fluid channel 11 fully open, the remaining valve plates 3 can make the other fluid channels 11 fully closed or maintain a partial opening. In this way, the gas flow switching in two or more fluid channels 11 can be realized, and the gas in multiple fluid channels 11 can be circulated proportionally by flexibly adjusting the opening of the valve plates 3, thereby improving the flexibility of applicable working conditions; and there is no need to independently set valves on multiple pipelines, saving costs, simplifying control logic, and improving reliability.

[0024] It should be understood that in this solution, the plurality of fluid channels 11 are sequentially arranged at intervals along the axis of the rotating shaft 2. In addition, in one embodiment, the plurality of valve plates 3 are arranged to have a phase angle of 0° to 90°. In another embodiment, two fluid channels 11 are provided, and the valve plates 3 in the two fluid channels 11 have a phase angle.

[0025] In one embodiment, a plurality of valve groups are provided, each valve group can be selectively assembled on the valve seat 1, and the phase angles of the plurality of valve plates 3 are arranged differently.

[0026] In this embodiment, multiple valve groups are provided, and the phase angles between the valve sheets 3 of the multiple valve groups are set to different forms, so that the valve groups with the required phase angles can be assembled on the valve seat 1 according to actual needs, thereby improving applicability. In addition, it should be noted that the valve seat 1 corresponding to the number of fluid channels 11 can be selected according to actual needs.

[0027] In one embodiment, see Figure 3 and Figure 4 The valve seat 1 has a cooling water jacket 12 and two water jacket ports 13. The cooling water jacket 12 is arranged around the outer periphery of each fluid channel 11. The two water jacket ports 13 respectively connect the cooling water jacket 12 with the outside.

[0028] In this embodiment, a cooling water jacket 12 is provided on the valve seat 1, and a coolant flows in the cooling water jacket 12, so as to flexibly adjust the temperature of the fluid in each fluid channel 11 and improve the applicability.

[0029] It should be noted that the arrangement form of the driving unit 4 is not limited, as long as it can drive the rotating shaft 2 to rotate around its axis. In one embodiment, the driving unit 4 is arranged in the form of a hydraulic cylinder, a rack and a gear, the gear is arranged on the rotating shaft 2, the rack is meshed with the gear, and the hydraulic rod of the hydraulic cylinder drives the rack to move linearly, and the gear converts the linear movement of the rack into the movement of the rotating shaft 2 around its axis. In another embodiment, the driving unit 4 is arranged in the form of a cylinder, a rack and a gear, and its working process is the same as that of the hydraulic cylinder.

[0030] In one embodiment, the driving unit 4 includes a driving motor 41, the base of the driving motor 41 is fixed to the valve seat 1, and its output shaft is drivingly connected to the rotating shaft 2 to drive the rotating shaft 2 to rotate around its axis, and the cooling water jacket 12 at least partially extends to a position adjacent to the base.

[0031] In this embodiment, the driving part 4 is set in the form of a driving motor 41, and the output shaft of the driving motor 41 directly drives the rotating shaft 2 to rotate, and the structure is stable and reliable. The base of the driving motor 41 is fixed on the valve seat 1, and the cooling water jacket 12 can absorb the heat generated when the base is working for cooling, and at the same time isolate the high-temperature gas in the fluid channel 11 to prevent the high-temperature gas in the fluid channel 11 from causing adverse effects on the driving motor 41, thereby ensuring the working stability of the driving motor 41 and protecting the driving motor 41.

[0032] In one embodiment, the driving unit 4 also includes a reset spring, which is connected to the valve seat 1 and the rotating shaft 2, and whose torque is greater than the starting torque of the driving motor 41 and less than the rotational torque of the driving motor 41, so as to reset the rotating shaft 2 to the initial position when the driving motor 41 stops.

[0033] In this embodiment, a return spring is arranged between the valve seat 1 and the rotating shaft 2 as described above. When the driving motor 41 is working, since the rotational torque of the driving motor 41 is greater than the torque of the return spring, its output shaft can drive the rotating shaft 2 to rotate so that the valve plate 3 is at a corresponding opening position. When the driving motor 41 stops working, since the torque of the return spring is greater than the starting torque of the driving motor 41, the return spring can drive the rotating shaft 2 to return to the initial position, so as to facilitate re-regulation and improve practicality.

[0034] In one embodiment, see Figures 3 to 5 The multiple fluid channels 11 include a first channel 111 and multiple second channels 112. The first channel 111 and the multiple second channels 112 are arranged in sequence. The valve plate 3 in the first channel 111 is a first valve plate 31, and the valve plate 3 in the second channel 112 is a second valve plate 32. The first valve plate 31 and the second valve plate 32 have a phase angle, and the multiple second valve plates 32 are arranged in the same direction on the rotating shaft 2. The temperature of the fluid in the first channel 111 is different from the temperature of the fluid in the second channel 112.

[0035] In this embodiment, the first channel 111 and the plurality of second channels 112 are arranged in sequence along the axis of the rotating shaft 2, and the temperature of the fluid passing through the first channel 111 is set to be different from the temperature of the fluid passing through the second channel 112, and the temperature of the fluid passing through the plurality of second channels 112 is the same, so that there is only one hot-cold interface between the plurality of fluid channels 11, thereby reducing the adverse heat exchange between the fluid channels 11.

[0036] Specifically, when low-temperature gas passes through the first channel 111, high-temperature gas passes through the plurality of second channels 112, and a cold-hot interface exists only between the first channel 111 and the adjacent second channel 112. When high-temperature gas passes through the first channel 111, low-temperature gas passes through the plurality of first channels 111, and a cold-hot interface exists only between the first channel 111 and the adjacent second channel 112.

[0037] In one embodiment, the driving part 4 is fixed to the valve seat 1 , the first channel 111 and the plurality of second channels 112 are arranged in sequence in a direction away from the driving part 4 , and the temperature of the fluid in the first channel 111 is lower than the temperature of the fluid in the second channel 112 .

[0038] In this embodiment, the first channel 111 and multiple second channels 112 are arranged in sequence in a direction away from the driving part 4, and low-temperature gas flows in the first channel 111, while high-temperature gas flows in the second channel 112, so that the low-temperature gas in the first channel 111 can be used to cool and protect the driving part 4.

[0039] In one embodiment, the cross-sectional area of ​​the first channel 111 is greater than the cross-sectional area of ​​the second channel 112 .

[0040] In this embodiment, the cross-sectional area of ​​the first channel 111 is set to be larger than the cross-sectional area of ​​the second channel 112, so that the flow rate of the gas in the first channel 111 is greater than the flow rate of the gas in the second channel 112, thereby ensuring the cooling effect of the low-temperature gas in the first channel 111 on the driving part 4.

[0041] It should be noted that, in one embodiment, one first channel 111 is provided, and two second channels 112 are provided, and the first channel 111 and the two second channels 112 are sequentially provided in a direction away from the drive motor 41. The two second channels 112 have the same cross-sectional area, and correspondingly, the size of the valve plate 3 is the same. In addition, it should be understood that the specific cross-sectional area of ​​the fluid channel 11 and the size of the valve plate 3 can be set according to actual needs.

[0042] In one embodiment, the valve seat 1, the rotating shaft 2 and the valve plate 3 are all made of high temperature resistant and corrosion resistant materials.

[0043] In this embodiment, the valve seat 1, the rotating shaft 2 and the valve plate 3 are all made of corrosion-resistant and high-temperature resistant materials to withstand the high-temperature and high-pressure environment of corrosive exhaust gas and pressurized gas, thereby extending the service life of the valve body. It should be noted that high-temperature and corrosion-resistant materials include stainless steel, alumina ceramics and silicon carbide ceramics, etc., which can be applied to harsh working conditions.

[0044] In one embodiment, the valve plate 3 is arranged in a streamlined shape from the middle to the end edge.

[0045] In this embodiment, the valve plate 3 is streamlined from the middle to the end edge to reduce fluid resistance. In addition, the valve plate 3 is usually made of stainless steel, and the surface is specially treated, such as polishing, to improve the passing performance of the fluid. At the same time, polytetrafluoroethylene (PTFE) can be used as a sealing material at the edge of the valve plate 3. This material has the characteristics of strong corrosion resistance, stable performance, low friction coefficient, etc., which can improve the sealing performance of the valve body and extend the service life. ‌‌

[0046] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the present invention is described in detail: In this solution, multiple valve plates 3 are driven to rotate simultaneously by a rotating shaft 2, and multiple valves do not need to be independently set on multiple pipelines, which saves costs, simplifies control logic, and improves reliability. At the same time, multiple valve plates 3 can be arranged at a phase angle of 0 to 90°, and can be designed according to actual needs, so that when one valve plate 3 is fully open, the remaining valve plates 3 are fully closed or maintain a partial opening, which can realize the switching of gas flow in multiple fluid channels 11; and by adjusting the opening of the valve plate 3, the gas in multiple fluid channels 11 can be circulated in proportion, which has good practicality. In addition, the temperature of the gas in the fluid channel 11 can be controlled by the cooling water jacket 12, and the drive motor 41 can be protected. And low-temperature gas circulates in the fluid channel 11 close to the drive motor 41, and high-temperature gas circulates in the fluid channel 11 away from the drive motor 41, which further protects the drive motor 41.

[0047] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A uniaxial multi-channel valve, characterized in that: include: A valve seat having a plurality of fluid channels, wherein the plurality of fluid channels are sequentially spaced apart; A valve group, comprising a rotating shaft and a plurality of valve plates, wherein the rotating shaft is rotatably mounted on the valve seat around its axis and penetrates a plurality of the fluid channels in sequence, wherein the plurality of valve plates are respectively placed in the plurality of the fluid channels and mounted on the rotating shaft, wherein each of the valve plates can adjust the opening of the corresponding fluid channel when rotating with the rotating shaft, wherein at least two of the valve plates are spaced apart along the circumference of the rotating shaft to form a phase angle; and The driving part is connected to the rotating shaft and is used to drive the rotating shaft to rotate around its axis.

2. The uniaxial multi-channel valve according to claim 1, characterized in that: The valve groups are provided in a plurality of groups, each of the valve groups can be selectively assembled on the valve seat, and the phase angles of the valve plates of the plurality of groups are arranged differently.

3. The uniaxial multi-channel valve according to claim 1, characterized in that: The valve seat has a cooling water jacket and two water jacket openings. The cooling water jacket is arranged around the outer periphery of each of the fluid channels. The two water jacket openings are respectively connected with the cooling water jacket and the outside.

4. The uniaxial multi-channel valve according to claim 3, characterized in that: The driving part comprises a driving motor, the base of the driving motor is fixed to the valve seat, and the output shaft thereof is drivingly connected to the rotating shaft for driving the rotating shaft to rotate around its axis, and the cooling water jacket at least partially extends to a position adjacent to the base.

5. The uniaxial multi-channel valve according to claim 4, characterized in that: The driving part also includes a reset spring, which is connected to the valve seat and the rotating shaft, and has a torque greater than the starting torque of the driving motor and less than the rotational torque of the driving motor, so as to reset the rotating shaft to an initial position when the driving motor stops.

6. The uniaxial multi-channel valve according to any one of claims 1 to 5, characterized in that: The plurality of fluid channels include a first channel and a plurality of second channels, the first channel and the plurality of second channels are arranged in sequence, the valve plate in the first channel is a first valve plate, the valve plate in the second channel is a second valve plate, the first valve plate and the second valve plate have a phase angle, and the plurality of second valve plates are arranged in the same direction on the rotating shaft; Wherein, the temperature of the fluid in the first channel is different from the temperature of the fluid in the second channel.

7. The uniaxial multi-channel valve according to claim 6, characterized in that: The driving part is fixed to the valve seat, the first channel and the plurality of second channels are arranged in sequence in a direction away from the driving part, and the temperature of the fluid in the first channel is lower than the temperature of the fluid in the second channel.

8. The uniaxial multi-channel valve according to claim 7, characterized in that: The cross-sectional area of ​​the first channel is greater than the cross-sectional area of ​​the second channel.

9. The uniaxial multi-channel valve according to claim 1, characterized in that: The valve seat, the rotating shaft and the valve plate are all made of high temperature resistant and corrosion resistant materials.

10. The uniaxial multi-channel valve according to claim 1, characterized in that: The valve sheet is arranged in a streamline shape from the middle to the end edge.

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