CN206816388U - A kind of anti-reverse integrated form intersects annular groove gaseous fuel jet mixing device - Google Patents

Abstract

The purpose of this utility model is to provide an anti-reverse integrated cross-ring groove gas fuel injection mixing device. The gas fuel is transported to the system through the pipeline, and first passes through the fuel injection valve. The actuator realizes the control of the valve core by controlling the The control of valve opening and closing; through the mixed air intake mode of direct air intake from the axial main air groove and air intake from the circumferential air supply hole, a large flow rate can be realized, and the air supply efficiency of the engine can be effectively improved; The ring belt structure realizes the surface sealing of the gas injection valve with high reliability; through the floating valve seat structure, it realizes the function of avoiding the reverse leakage caused by the imbalance of internal and external pressure of the gas injection valve, and ensures the reliability of the gas injection valve; Through the cavity structure of the fuel diffusion tube, the fuel can be distributed throughout the system, realizing the continuity and responsiveness of the air supply system; through the ring groove structure, the degree of mixing of fuel and air is promoted, which is beneficial to combustion and improves System performance.

Description

An anti-reverse integrated cross-ring groove gas fuel injection mixing device

technical field

The utility model relates to an air intake system, in particular to an air intake system of a gas fuel engine.

Background technique

In today's world, the ever-increasing emission standards and the increasingly severe energy crisis pose new challenges to fuel engines. New gas fuels, mainly represented by natural gas, have become the focus of researchers in various countries, and gas fuel engines have also become the most important. research object. A complete air intake system, including fuel injection valves, intake manifolds, cylinder valves and many other parts, every part through which fuel and air flow will have an important impact on the performance of a gas fuel engine. For the injection of gaseous fuel, it is required to have a large injection flow rate, high injection efficiency, stable injection, and good response; and for the flow of gaseous fuel and air, it is necessary to allow the gaseous fuel and air to fully flow before entering the cylinder. Mixing to improve fuel combustion efficiency and save energy consumption. In addition, under severe engine conditions, the injection valve is prone to reverse leakage, so it is necessary to design an injection valve that can prevent reverse leakage.

Contents of the invention

The purpose of this utility model is to provide an anti-reverse integrated cross-ring groove gas that can fully mix air and fuel before entering the combustion chamber, improve combustion efficiency, improve economic performance, and can effectively prevent reverse leakage of fuel Fuel injection mixing device.

The purpose of this utility model is achieved in that:

The utility model is an anti-reverse integrated cross-ring groove gas fuel injection mixing device, which is characterized in that it includes a fuel injection valve, a gas cover, and a fuel diffusion pipe;

The fuel injection valve includes a valve body, an iron core, a valve core assembly, and a floating valve seat. The iron core is fixed on the upper end of the valve body, a coil is wound inside the iron core, and an annular groove is arranged in the iron core; the valve core assembly includes an armature , spring seat, bottom plate, valve core, armature, bottom plate, valve core are arranged from top to bottom and connected together by fastening bolts, the spring seat is located outside the armature and forms an annular groove with the armature, and the two ends of the return spring are respectively arranged In the annular groove of the iron core and the annular groove of the spring seat, a pressure balance hole is set at the center of the armature, a pressure balance groove is set on the bottom plate, the valve core is a hollow structure, the pressure balance hole, the pressure balance groove, and the hollow part of the valve core are connected. The valve seat return spring is set in the hollow part of the spool, the sealing ring and the rib are set on the spool, the sealing ring forms a ring cavity, the upper surface of the spool is provided with an axial main air groove, and the rib is provided with a circumferential air hole, and The diversion cone angle is set at the air supply hole; the floating valve seat includes a guide base and a valve seat, the guide base is fixed under the valve body, the valve seat is located under the valve core, and the inner ring of the guide base is provided with a T-shaped structure , the outer ring of the valve seat is installed in the guide base by setting a T-shaped structure matched with it. The two ends of the valve seat return spring are fixed on the valve seat and the armature respectively. Around the valve core, the air outlet ring is located under the ring cavity, and the air outlet is arranged under the air outlet ring;

The head end of the gas cover is set under the air outlet, and the end of the gas cover is connected to the fuel diffusion pipe. The fuel diffusion pipe is located in the intake manifold, and the fuel diffusion pipe is provided with a ring groove. The ring groove includes the first type ring groove and the second type ring groove. Ring grooves, the diameter of the fuel diffusion tube changes in steps alternately, the first type of ring groove is located at the position where the diameter of the fuel diffusion tube is relatively small, the second type of ring groove is located at the position where the diameter of the fuel diffusion tube is relatively large, and the first type of ring groove is located at the position where the diameter of the fuel diffusion tube is relatively large The annular grooves and the second type of annular grooves are arranged circumferentially and staggered from each other by 90°.

The utility model can also include:

1. The gas hood is a tapered nozzle. The cross-sectional area of the head end of the gas hood is larger than the cross-sectional area of the end.

2. Two anti-leakage structures are set between the valve seat and the guide base. The first anti-leakage structure is to install a deformable sealing ring above the connection between the valve seat and the guide base, and the inner edge of the deformable sealing ring is above the Add a compression gasket, the second anti-leakage structure is to set two layers of sealing rubber rings at the T-shaped structure connection between the valve seat and the guide base, and set the T-shaped structure connection between the valve seat and the guide base. Elastic washer.

3. An air inlet is formed between the upper part of the iron core and the valve body, and a diversion chamber is formed between the middle and lower part of the iron core and the valve body. The air inlet and the diversion chamber are connected; the gas flows into the valve body vertically from the air inlet. Flow along the diversion cavity to fill the inside of the valve body. After the coil is energized, the armature drives the valve core to move upward and separate from the valve seat surface. The air path is opened, the solenoid valve is opened, and the gas is mixed into the axial main air groove and the circumferential air supply hole. The air flows in through the annular cavity, is guided by the air outlet, and then vertically flows into the intake elbow and the air pipe, and enters the intake manifold from the end of the air pipe, the first type of annular groove, and the second type of annular groove; after the coil is powered off, Under the action of the return spring between the iron core and the spring seat, the armature moves downward, driving the valve core to move downward until the surface of the valve core fits the surface of the valve seat and returns to the initial position, the air circuit is closed, and the solenoid valve is closed .

The utility model has the advantages that: the fuel injection valve of the utility model adopts a plurality of guide blocks and a circumferential air hole structure to enhance the opening response of the valve core; a pressure balance hole is opened in the center of the armature and a certain amount of pressure is opened on the bottom plate. The balance groove prevents the armature from being subjected to axial force, makes it easier to balance the pressure of the internal and external air passages at the armature, and improves the response speed of the armature; by opening circumferential air holes on the four ribs of the valve core, the flow area is increased and the mass of the valve core is reduced. Improve reliability; set a certain angle of air outlet ring at the circumferential air supply hole of the valve core to reduce flow loss and increase flow coefficient; the utility model adopts a mixture of direct air intake from the axial main air groove and air intake from the circumferential air supply hole The air intake method increases the intake air flow coefficient, increases the intake air volume, and at the same time avoids air flow interference, balances the air path, and effectively improves the air supply efficiency of the engine; when the fuel injection valve is opened, the fuel flows into the fuel through the air cover. In the diffuser pipe, it flows into the intake manifold through a series of staggered ring grooves, fully mixes with the air, and finally flows into the cylinder; after the fuel injection valve and the cylinder valve are closed, since this system can combine fuel and air With a certain isolation, the gas fuel that has been sprayed out from the injection valve but failed to enter the cylinder in time can be stored in the cavity of the fuel diffusion pipe to prevent diffusion loss. After the next time the injection valve and the cylinder valve are opened, this part of the gas Fuel can be quickly supplied to the cylinder for combustion, which improves the responsiveness of fuel supply; when the engine operating condition is bad, the external pressure is greater than the internal pressure, the floating valve seat structure can effectively avoid the reverse flow of fuel and ensure the normal operation of the engine .

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is an overall schematic diagram of the fuel injection valve;

Fig. 3 is a schematic diagram of the spool assembly;

Figure 4 is an enlarged view of the structure of the floating valve seat;

Figure 5 is a force diagram of the floating valve seat;

Figure 6a is a schematic diagram of a fuel diffuser, Figure 6b is a view from B-B, and Figure 6c is a view from C-C;

Figure 7 is a flow diagram of gaseous fuel.

detailed description

The utility model is described in more detail below in conjunction with accompanying drawing example:

1-7, an anti-reverse integrated cross-ring groove gas fuel injection mixing device in the utility model is divided into a fuel injection valve 1, a connecting gas cover 2 and a fuel diffusion pipe 3. The fuel injection valve is mainly composed of four parts: a valve body 4, an electromagnet 5, a valve core assembly 6, and a floating valve seat 7. The electromagnet 5 is connected with the valve body 4 through the upper screw thread. The electromagnet 5 is mainly composed of an iron core 8 and a coil 9. Both sides of the iron core 8 are provided with annular grooves for arranging a return spring 10 . A valve core assembly 6 is arranged below the electromagnet. Below the valve core assembly 6 is a floating valve seat 7 structure. The floating valve seat 7 and the valve body 4 are not fixed with screws, and the connection between the two is through the guide base. 30 is an intermediary, and realizes sealing with the combination of rubber gaskets. The function of the gas hood 2 is to divide the original mixed air channel into two parts, through which gas fuel and air flow respectively. The gas hood adopts a large rounded structure to avoid throttling loss caused by the angular structure and enhance the system's gas supply capacity. One end of the gas cover 2 is closely connected to the outlet of the fuel injection valve 1 , and the other end is closely connected to the fuel diffusion pipe 3 . The fuel diffuser pipe 3 is located in the intake manifold and is arranged close to the intake manifold. A series of staggered annular grooves 38 are provided on the side wall. The annular grooves are arranged in a circumferential direction and form 90° to each other, so that the gaseous fuel can pass through the intake manifold. A series of annular grooves flow into the gas mixing area, and the gas fuel injected into the mixing area will be mixed with the air in the manifold after being torn and turbulent by the intake air, so as to improve the intake air quality and accelerate the mixing of fuel and air.

The spool assembly 6 shown in FIG. 3 is mainly composed of an armature 11 , a spring seat 13 , a fastening bolt 17 , a gasket 15 , a bottom plate 16 and a spool 18 . The armature 11 , gasket 15 , base plate 16 and valve core 18 are linked together by fastening bolts 17 , and the spring seat 13 is installed on the base plate 16 . The armature 11 is provided with a pressure balance hole 12, and the base plate 16 is provided with a certain number of pressure balance grooves 14 to prevent the armature 11 from being subjected to axial force, making it easier to balance the internal and external pressure of the armature 11 and improving the response speed of the armature 11; reset The spring 10 is located between the iron core 8 and the spring seat 13 . After the coil 9 is energized, the iron core 8 and the armature 11 are magnetized, and a magnetic circuit is formed between the iron core 8 and the armature 11. The armature 11 moves upward after being subjected to the electromagnetic force and overcomes the pretightening force of the return spring 10. During the whole movement process, The axial movement and circumferential positioning of the armature 11 are controlled by the cooperation between the four guide blocks 29 on the valve seat 31 and the valve core 18 until the upper surface of the spring seat 13 contacts the lower surface of the iron core 8 , after the armature 11 maintains this position for a period of time, the coil 9 is powered off, the electromagnetic force received by the armature 11 disappears, and under the action of the return spring 10 between the iron core 8 and the spring seat 13, the armature 11 moves downward until the armature 11 Return to the initial position. On the four ribs 19 of the valve core 18, two circumferential air supply holes 20 are respectively opened to improve the response speed, increase the flow area, reduce the mass and improve the reliability at the same time. An air outlet annular zone 24 at a certain angle is arranged at the circumferential air supply hole 20 to reduce flow loss and increase flow coefficient. Adopting the mixed air intake method of direct air intake from the axial main air groove 28 and air intake from the circumferential air supply hole 20, the air intake flow coefficient is increased, the intake air volume is increased, and the air flow interference can be avoided at the same time, so that the air path can be balanced. The air outlet ring 24 is adopted between the valve core 18 and the valve seat 31, the surface is sealed, the pressure is stabilized and balanced, and the wider ring area can reduce the impact and improve the reliability.

As shown in Figure 4, in order to prevent the reverse leakage of gas and improve the reliability and safety of the gas injection valve, the utility model adopts the floating valve seat 7 structure. The floating valve seat 7 can lock the solenoid valve when the external pressure of the solenoid valve is high and the internal pressure is high, effectively preventing the reverse leakage of gas. Floating valve seat 7 is made up of 7 parts: guide base 30, valve seat 31, and valve seat return spring 37, sealing rubber ring 33, compression washer 35, deformable sealing ring 36, elastic washer 32. The guide base 30 is fixed on the valve body 4 by bolts, and the valve seat 31 is installed on the guide base 30 . The inner ring of the guide base 30 has a T-shaped structure, which matches the T-shaped structure of the outer ring of the valve seat 31 . The two ends of the valve seat return spring 37 are respectively fixed on the valve seat 31 and the valve core 18, and maintain a certain pretightening force.

In order to prevent air leakage between the valve seat 31 and the guide base 30, two anti-leakage structures are installed between the valve seat 31 and the guide base 30. The first anti-leakage structure is between the valve seat 31 and the guide base. A deformable sealing ring 36 is installed above the joint of the base 30, and the outer edge of the deformable sealing ring 36 is pressed in the installation groove on the guide base 30 and the valve body 4, and the bolts between the guide base 30 and the valve body 4 are pre-installed. Tight fix. A compression washer 35 is installed along the top of the deformable sealing ring 36, and is fixed on the valve seat 31 by screws 34. The compression washer 35 ensures uniform stress and enhances sealing performance. The material of the deformable sealing ring 33 is deformable soft plastic to ensure that it does not affect the movement of the valve seat 31 . The second heavy seal is that two layers of sealing rubber rings 33 are installed at the T-shaped connection between the valve seat 31 and the guide base 30 to further enhance the sealing performance. A layer of elastic washer 32 is added to the T-shaped connection between the valve seat 31 and the guide base 30 to reduce the vibration impact force during contact and play a role in shock absorption. Effectively increase the reliability of the solenoid valve.

As shown in FIG. 5 , the valve seat 31 is affected by the elastic force F4 of the valve seat return spring 37 , the external gas pressure F1 and F2 of the solenoid valve, the internal gas pressure F3 of the solenoid valve and the pressing force of the valve core 18 . The spool 18 is acted by the elastic force of the return spring. When the air pressure under the solenoid valve is greater than the internal air pressure of the solenoid valve, the external gas pressure F1 and F2 of the solenoid valve act on the bottom of the valve seat 31 and the gas outlet ring 24 respectively, and the contact area under the valve seat 31 is much larger than the gas outlet ring 24. Therefore, F1 is far larger At F2, before the external gas pressure expands to cause the valve core 18 to move upward, the external gas pressure F1, F2 overcomes the spring preload of the return spring 10, and the valve seat 31 moves upward together with the valve core 18. The valve seat 31 moves upward until the spring seat 17 contacts the electromagnet. Even if the electromagnet is energized now, the spool 18 cannot move upwards, and the electromagnetic valve cannot be opened. The solenoid valve is locked.

When the air pressure inside and outside the solenoid valve returned to normal, the valve seat 31 moved downwards and got back to its original position under the action of the valve seat return spring 37 . If the electromagnet is energized at this moment, the spool 18 remains motionless, and the electromagnetic valve is normally opened. When the electromagnetic valve is intended to be closed, the electromagnet is de-energized, and the spool 18 moves downward under the action of the back-moving spring, and the electromagnetic valve is closed. If the electromagnet is not energized at this moment, the valve seat 31 and the valve core 18 move downwards and return to the original position together with the valve core 10, and the electromagnetic valve remains closed. When wanting to open the electromagnetic valve, the electromagnet is energized, and the spool 18 moves upwards under the drive of the armature, and the electromagnetic valve is normally opened.

Before the engine starts to work, the gas flows vertically into the valve body 4 through the air inlet 25 , flows into the valve body 4 along the guide chamber 27 and fills the inside of the valve body 4 .

During the intake stroke of the engine, after the coil 9 is energized, the armature 11 is subjected to the electromagnetic force and overcomes the pre-tightening force of the return spring 10 and then moves upward, driving the valve core 18 to move upward and separate from the surface of the valve seat 31. At this time, the air circuit Open, the solenoid valve is opened, the gas flows in from the mixed air intake mode of the axial main air groove 28 and the circumferential air supply hole 20, passes through the multi-channel intricately distributed annular cavity 22, and finally flows out of the jet valve vertically through the air outlet 27 and flows into the gas cover The fuel flows into the fuel diffuser pipe 3 through the gas cover 2, and then sprays into the gas mixing area through each annular groove 38. Since the annular grooves 38 on the branch pipes are arranged in a circumferential direction and form 90° to each other, the gaseous fuel can pass through this A series of annular grooves flow into the gas mixing area, and after the gas fuel injected into the mixing area undergoes intake tearing and turbulence, the fuel and air can be fully mixed and then flow into the cylinder.

When the intake stroke of the engine ends, the coil 9 is powered off, and the electromagnetic force received by the armature 11 disappears. Under the action of the return spring between the iron core 8 and the spring seat 13, the armature 11 moves downward, driving the valve core 18 downward. until the surface of the valve core 18 fits with the surface of the valve seat 31 and returns to the initial position, the gas circuit is closed, the fuel injection valve 1 is closed, the flow of fuel in the main part of the air pipe basically stops, and the fuel is stored in the gas cover 2 and fuel injection pipe 3. When the next intake stroke occurs, the fuel injection valve 1 and the cylinder valve are opened, and the fuel stored in the gas cover 2 and the fuel injection pipe 3 will be pushed to the gas mixing area by the subsequent fuel, and enter the cylinder after being mixed with air , thereby improving the responsiveness of the air supply of the entire intake system.

Concrete structural scheme of the present utility model is as follows:

An anti-reverse integrated cross-ring groove gas fuel injection mixed intake device in the utility model is divided into a fuel injection valve, a connecting gas cover and a fuel diffusion pipe. Among them, the gas injection valve is mainly composed of four parts: valve body, electromagnet, valve core assembly and floating valve seat. The electromagnet is connected with the valve body through its upper thread, and the electromagnet is mainly composed of an iron core and a coil. The two sides of the iron core are provided with annular grooves for arranging return springs. The valve core assembly is mainly composed of armature, spring seat, fastening bolt, gasket, bottom plate and valve core. The armature, gasket, bottom plate and valve core are linked together by fastening bolts. The spring seat is installed on the bottom plate, and the bottom plate There are a certain number of pressure balance grooves, and the armature has a pressure balance hole to prevent the armature from being subjected to axial force, so that the pressure of the internal and external air passages at the armature can be more easily balanced, and the response speed of the armature can be improved. The return spring is located between the iron core and the spring seat. The floating valve seat is composed of a guide base, a valve seat, and a valve seat return spring, a sealing rubber ring, a compression washer, a deformable sealing ring, and an elastic washer. The guide base is fixed on the valve body by bolts, and the valve seat is installed on the guide on the base. The inner ring of the guide base has a T-shaped structure, which matches the T-shaped structure of the outer ring of the valve seat. The two ends of the valve seat return spring are respectively fixed on the valve seat and the valve core, and a certain pretightening force is maintained. The function of the gas hood is to divide the original mixed air channel into two parts, through which gas fuel and air flow respectively. One end of the gas cover is closely connected with the outlet of the fuel injection valve, and the other end is closely connected with the fuel diffusion pipe. The fuel is ejected from the fuel injection valve and enters the diffusion pipe through the gas cover. The fuel diffuser pipe is located in the intake manifold and is arranged close to the intake manifold. There are annular grooves arranged in the circumferential direction and forming a 90° angle with each other. After the action, it is mixed with the air in the manifold to improve the intake air quality.

Inside the gas injection valve in the system, the guide part is composed of 4 guide blocks. The valve core is fixed on the 4 guide blocks on the valve seat in the circumferential direction to ensure its verticality. The distance is limited. The four ribs of the spool are respectively provided with circumferential air supply holes to increase the flow area, reduce the mass of the spool, and improve reliability. Three air outlet rings are also used between the valve core and the valve seat, the surface is sealed, the pressure is stable and balanced, and it has a wider ring area to reduce flow loss and increase the flow coefficient.

Because the gas injection valve part adopts the design of the floating valve seat, it has more stringent requirements for the sealing parts. Two anti-leakage structures are installed between the valve seat and the guide base. The first anti-leakage structure is to install a deformable sealing ring above the connection between the valve seat and the guide base. Tightly fit in the installation groove on the guide base and the valve body, and be fixed by the bolt pre-tightening force between the guide base and the valve body. A compression washer is installed above the inner edge of the deformable sealing ring, and is fixed on the valve seat by screws. The material of the deformable sealing ring is deformable soft plastic to ensure that it does not affect the movement of the valve seat. The second seal is to install two layers of sealing rubber rings at the T-shaped connection between the valve seat and the guide base. The remarkable effect of using the floating valve seat is that it can effectively prevent the reverse leakage of the gas injection valve and has the function of shock absorption, which ensures the reliability and safety of the gas injection valve.

The gas injection valve adopts the mixed air intake method of direct air intake from the axial main air groove and air intake from the circumferential air supply hole, which can effectively increase the air intake flow coefficient, increase the intake air volume, and at the same time avoid air flow interference, so that the air path can be balanced , improve the air supply efficiency of the engine.

The surface structure of the gas cover in the system adopts a larger radius of curvature to avoid a relatively sharp corner structure, which can reduce the throttling loss during the process of injecting fuel from the injection valve into the main part of the air pipe through the gas cover.

In the system, the end of the fuel diffusion pipe should be as close as possible to the intake valve of the engine cylinder, so as to reduce the residual gas in the intake passage and improve the fuel utilization efficiency.

Claims (5)

1. An anti-reverse integrated cross-ring groove gas fuel injection mixing device, characterized in that it includes a fuel injection valve, a gas cover, and a fuel diffusion pipe; The fuel injection valve includes a valve body, an iron core, a valve core assembly, and a floating valve seat. The iron core is fixed on the upper end of the valve body, a coil is wound inside the iron core, and an annular groove is arranged in the iron core; the valve core assembly includes an armature , spring seat, bottom plate, valve core, armature, bottom plate, valve core are arranged from top to bottom and connected together by fastening bolts, the spring seat is located outside the armature and forms an annular groove with the armature, and the two ends of the return spring are respectively arranged In the annular groove of the iron core and the annular groove of the spring seat, a pressure balance hole is set at the center of the armature, a pressure balance groove is set on the bottom plate, the valve core is a hollow structure, the pressure balance hole, the pressure balance groove, and the hollow part of the valve core are connected. The valve seat return spring is set in the hollow part of the spool, the sealing ring and the rib are set on the spool, the sealing ring forms a ring cavity, the upper surface of the spool is provided with an axial main air groove, and the rib is provided with a circumferential air hole, and The diversion cone angle is set at the air supply hole; the floating valve seat includes a guide base and a valve seat, the guide base is fixed under the valve body, the valve seat is located under the valve core, and the inner ring of the guide base is provided with a T-shaped structure , the outer ring of the valve seat is installed in the guide base by setting a T-shaped structure matched with it. The two ends of the valve seat return spring are fixed on the valve seat and the armature respectively. Around the valve core, the air outlet ring is located under the ring cavity, and the air outlet is arranged under the air outlet ring; The head end of the gas cover is set under the air outlet, and the end of the gas cover is connected to the fuel diffusion pipe. The fuel diffusion pipe is located in the intake manifold, and the fuel diffusion pipe is provided with a ring groove. The ring groove includes the first type ring groove and the second type ring groove. Ring grooves, the diameter of the fuel diffusion tube changes in steps alternately, the first type of ring groove is located at the position where the diameter of the fuel diffusion tube is relatively small, the second type of ring groove is located at the position where the diameter of the fuel diffusion tube is relatively large, and the first type of ring groove is located at the position where the diameter of the fuel diffusion tube is relatively large The annular grooves and the second type of annular grooves are arranged circumferentially and staggered from each other by 90°. 2. An anti-reversal integrated cross-ring groove gas fuel injection mixing device according to claim 1, characterized in that: the gas cover is a tapered nozzle, and the cross-sectional area of the head end of the gas cover is larger than the cross-sectional area of the end , the cross-section axes of the head end and the end of the gas mask are 90° to each other. 3. An anti-reverse integrated cross-ring groove gas fuel injection mixing device according to claim 1 or 2, characterized in that: a double anti-leakage structure is set between the valve seat and the guide base, the first The first anti-leakage structure is to install a deformable sealing ring above the connection between the valve seat and the guide base, and a compression gasket is installed on the inner edge of the deformable sealing ring. Two layers of sealing rubber rings are arranged at the T-shaped structure connection of the seat, and elastic washers are arranged at the T-shaped structure connection between the valve seat and the guide base. 4. An anti-reverse integrated cross-ring groove gas fuel injection mixing device according to claim 1 or 2, characterized in that: an air inlet is formed between the upper part of the iron core and the valve body, and the center of the iron core A diversion chamber is formed between the lower part and the valve body, and the air inlet and the diversion chamber are connected; the gas flows into the valve body vertically from the air inlet, and flows into the valve body along the diversion chamber. After the coil is energized, the armature drives the valve core upward. The movement is separated from the surface of the valve seat, the air path is opened, the solenoid valve is opened, the gas flows in through the mixed air intake mode of the axial main air groove and the circumferential air supply hole, passes through the annular cavity, is guided by the air outlet, and then vertically flows into the intake elbow and The trachea enters the intake manifold from the end of the trachea, the first type of ring groove, and the second type of ring groove; after the coil is powered off, the armature moves downward under the action of the return spring between the iron core and the spring seat, Drive the valve core to move downward until the surface of the valve core fits with the surface of the valve seat and returns to the initial position, the air circuit is closed, and the solenoid valve is closed. 5. An anti-reverse integrated cross-ring groove gas fuel injection mixing device according to claim 3, characterized in that: an air inlet is formed between the upper part of the iron core and the valve body, and the middle and lower part of the iron core is in contact with the valve body. A diversion chamber is formed between the valve bodies, and the air inlet and the diversion chamber are connected; the gas flows into the valve body vertically from the air inlet, and flows into the valve body along the diversion chamber. After the coil is energized, the armature drives the valve core to move upwards and The surface of the valve seat is separated, the gas path is opened, the solenoid valve is opened, the gas flows in through the mixed air intake mode of the axial main air groove and the circumferential air supply hole, passes through the ring cavity, is guided by the air outlet, and then vertically flows into the intake elbow and the air pipe. Enter the intake manifold from the end of the air pipe, the first type of ring groove, and the second type of ring groove; after the coil is powered off, under the action of the return spring between the iron core and the spring seat, the armature moves downward to drive the valve The spool moves downward until the surface of the spool fits with the surface of the valve seat and returns to the initial position, the air circuit is closed, and the solenoid valve is closed.