CN221547127U - Gas engine and continuous flow valve thereof - Google Patents

Abstract

The utility model relates to a continuous flow valve and a gas engine, wherein the continuous flow valve comprises a valve body, a Laval nozzle, a pressure regulating device and an executing device, wherein a valve cavity is arranged in the valve body, and the valve body is provided with an air flow inlet and an air flow outlet which are respectively communicated with the outside; the Laval nozzle is hermetically assembled at the airflow outlet; the pressure regulating device comprises a driving device arranged on the valve body and a valve movably arranged in the gas inflow port, and the driving device is in transmission connection with the valve; the execution device is arranged on one side of the valve body opposite to the airflow outlet, the execution end of the execution device penetrates through the valve cavity to be connected with the valve core, and the valve core is matched with the Laval nozzle to control the flow cross section of the Laval nozzle. The continuous flow valve adopts a structure of a single valve body, is more compact in structure and smaller in occupied space, is beneficial to arrangement in an engine and a system, is low in development cost, has larger design margin of the size space of the air inlet, and can meet different design requirements of air inlet flow.

Description

Gas engine and continuous flow valve thereof

Technical Field

The utility model relates to the technical field of engines, in particular to a gas engine and a continuous flow valve thereof.

Background

The continuous flow valve is a gas regulating valve and is widely applied to fuel supply of a gas engine and high-temperature gas regulation of an aerospace craft, and the continuous flow valve has the function of enabling a gas flow passing through a Laval nozzle to reach a supersonic state through regulating the gas pressure in a continuous flow valve cavity, and controlling the flow through the Laval nozzle.

The current continuous flow valve generally depends on a first-stage actuator in a first-stage valve body for regulating the gas pressure in a continuous flow valve cavity, and generally depends on a second-stage actuator arranged in a second-stage valve body for controlling the flow, so that the continuous flow valve can occupy larger space volume, the product cannot be compactly designed, the whole size of the product is large, the arrangement of the product in a whole machine or a system is not facilitated, the tolerance of parts to vibration and impact environments is poor, and because the molds of the two valve bodies are independently needed to be made, the development cost is high, meanwhile, the air flow inlet of the continuous flow valve of the double valve bodies is arranged in the first-stage valve body, the air flow outlet is arranged on the second-stage valve body, under the condition that at least two sides of air entering from the air flow inlet need to bend to enter the Laval nozzle of the air flow outlet, turbulent flow and turbulent flow are easy to form in the valve cavity, so that continuous flow valve air flow control fluctuation is caused, and product precision is influenced.

Disclosure of utility model

The first object of the present utility model is to provide a continuous flow valve, which is to improve the problems of the non-compact structure, poor tolerance to vibration and impact environments, high development cost, easy formation of turbulence and turbulence in a valve cavity, long response time of valve core control and poor response precision, improve the precision of the continuous flow valve, and reduce the manufacturing and use cost of the continuous flow valve.

A second object of the present utility model is to provide a gas engine comprising a continuous flow valve as described above.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a continuous flow valve comprising:

the valve body is internally provided with a valve cavity, and is provided with an air flow inlet and an air flow outlet which are respectively communicated with the outside;

The Laval nozzle is hermetically assembled at the airflow outlet;

The pressure regulating device comprises a driving device arranged on the valve body and a valve movably arranged in the air flow inlet, the driving device is in transmission connection with the valve, and the driving device drives the valve to act so as to regulate the flow cross section of the air flow inlet, so as to control the pressure in the valve cavity;

The actuating device is arranged on one side of the valve body opposite to the airflow outlet, the actuating end of the actuating device penetrates through the valve cavity to be connected with the valve core, and the valve core is matched with the Laval nozzle to control the through flow section of the Laval nozzle.

Optionally, the valve is rotatably disposed in the air inlet, the driving device is a rotary driver, and the driving end of the rotary driver is in transmission connection with the valve, so as to drive the valve to rotate in the air inlet.

Optionally, the valve body includes main part and first apron, first apron with main part sealing fit and detachable connection to enclose into first cavity and the air current entry, rotary actuator set up in the first cavity.

Optionally, the driving device comprises a driving shaft, the driving shaft comprises a first shaft portion and a second shaft portion, the first shaft portion and the second shaft portion are respectively arranged on two sides of the valve along a rotating shaft of the valve, one end, away from the valve, of the first shaft portion is rotatably arranged on the inner wall of the first cavity, and one end, away from the valve, of the second shaft portion is in transmission connection with the driving end of the rotary driver.

Optionally, the continuous flow valve further comprises a valve core position detection device and a controller, wherein the valve core position detection device is connected with a signal input end of the controller, the execution device is connected with a signal output end of the controller, the controller is integrated with a temperature acquisition module and a pressure acquisition module, the temperature acquisition module is used for acquiring the air flow temperature in the valve cavity, and the pressure acquisition module is used for acquiring the air flow pressure in the valve cavity;

The controller is used for controlling the actuating device to act according to the detection information of the temperature acquisition module and the pressure acquisition module and combining the feedback information of the valve core position detection device so as to adjust the position of the valve core.

Optionally, the valve body further includes a second cover plate detachably connected to the main body to enclose a second cavity, and the valve element position detecting device and the controller are disposed in the second cavity.

Optionally, the valve core position detection device includes a magnetic sensitive chip integrated in the controller and a magnetic core disposed on the valve core, where the magnetic sensitive chip cooperates with the magnetic core to identify the position of the valve core.

Optionally, a limit structure matched with the valve body or the Laval nozzle is arranged on the valve core, and the limit structure is used for enabling the magnetic core on the valve core to stay at an output zero position of the magnetic sensitive chip relative to the magnetic sensitive chip when the execution device drives the valve core to reset.

Optionally, the valve body further comprises a third cover plate, the third cover plate is in sealing fit with the main body and is detachably connected with the main body, a through hole is formed in the side wall of the main body, matched with the third cover plate, and the through hole is communicated with the valve cavity.

Optionally, the valve body further includes a fourth cover plate, the fourth cover plate is in sealing fit with the main body and is detachably connected with the main body, and a third cavity for accommodating the execution device is enclosed by the fourth cover plate and the main body.

Optionally, the first cover plate, the second cover plate, the third cover plate and the fourth cover plate are respectively located on side walls of the main body with different orientations.

Optionally, the actuator is an electromagnetic actuator.

A gas engine comprising a continuous flow valve as claimed in any one of the preceding claims.

According to the technical scheme, the utility model discloses a continuous flow valve which comprises a valve body, a Laval nozzle, a pressure regulating device and an executing device, wherein a valve cavity is arranged in the valve body, and the valve body is provided with an air flow inlet and an air flow outlet which are respectively communicated with the outside; the Laval nozzle is hermetically assembled at the airflow outlet; the pressure regulating device comprises a driving device arranged on the valve body and a valve movably arranged in the air inflow port, the driving device is in transmission connection with the valve, and the driving device drives the valve to act to regulate the through flow section of the air inflow port so as to control the pressure in the valve cavity; the execution device is arranged on one side of the valve body opposite to the airflow outlet, the execution end of the execution device penetrates through the valve cavity to be connected with the valve core, and the valve core is matched with the Laval nozzle to control the flow cross section of the Laval nozzle.

When the valve is applied, air flow enters the valve cavity from the air inlet, after the air pressure at the inlet of the Laval nozzle and the air back pressure at the outlet reach the critical pressure ratio, sonic flow is formed in the Laval nozzle, at the moment, the outlet back pressure fluctuation of the continuous flow valve does not influence the outlet flow, the flow of the continuous flow valve changes along with the air flow parameters (pressure, density and temperature) at the inlet of the Laval nozzle under the condition, the pressure regulating device realizes the target pressure by regulating the valve position, and the execution device drives the valve core to act so as to enable the pressure at the air outlet to be matched with the pressure at the air inlet.

Therefore, the continuous flow valve adopts the structure of the single valve body, the valve body can be in a more regular shape, all functional components are integrated on the valve body, the structure is more compact, the occupied space is smaller, the arrangement in an engine and a system is facilitated, the tolerance of the components to vibration and impact environments can be improved, in addition, in the manufacturing process, only a mould of one valve body is required to be manufactured, the development cost can be reduced, meanwhile, an air flow inlet and an air flow outlet are arranged on the valve body, the air flow entering the valve cavity through the air flow inlet can enter the air flow outlet through only one bending, the size space design margin of the air flow inlet is larger, the design requirements of different air inlet flows can be easily met, the probability of turbulent flow and turbulent flow of the air flow in the valve cavity can be reduced, the air flow control fluctuation of the continuous flow valve is reduced, and the precision of the continuous flow valve is improved.

The utility model also discloses a gas engine which comprises the continuous flow valve, and the gas engine has the same beneficial effects as the continuous flow valve because the gas engine adopts the continuous flow valve, and the description is omitted here.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a continuous flow valve according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a continuous flow valve according to an embodiment of the present utility model;

FIG. 3 is a top view of the continuous flow valve according to the present utility model with a third cover removed;

FIG. 4 is a rear view of a continuous flow valve provided in an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a continuous flow valve provided in an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a pressure adjusting device, an actuating device and a valve core position detecting device of a continuous flow valve according to an embodiment of the present utility model.

Wherein:

1 is a valve body; 101 is a main body; 102 is a first cover plate; 103 is a second cover plate; 104 is a third cover plate; 105 is a fourth cover plate; 1a is an airflow outlet; 1b is an air inlet; 2 is Laval nozzle; 3 is a pressure regulating device; 301 is a driving device; 302 is a valve; 303 is a drive shaft; 3031 is a first shaft portion; 3032 is a second shaft portion; 4 is a valve core; 5 is a controller; 6 is a valve core position detection device; 601 is a magnetically sensitive chip; 602 is a magnetic core; 7 is an electromagnetic actuator; 8 is an installation part; and 9 is a limiting structure.

Detailed Description

One of the cores of the utility model is to provide a continuous flow valve, which has the structural design that the continuous flow valve can improve the incompact structure of the continuous flow valve, has poor tolerance to vibration and impact environments, high development cost, easy formation of turbulent flow and turbulent flow in a valve cavity, long response time and poor response precision of a valve core control, improves the precision of the continuous flow valve and reduces the manufacturing and using cost of the continuous flow valve.

Another core of the present utility model is to provide a gas engine comprising the continuous flow valve described above.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a continuous flow valve according to an embodiment of the present utility model, fig. 2 is an exploded view of the continuous flow valve according to an embodiment of the present utility model, and fig. 3 is a top view of the continuous flow valve according to an embodiment of the present utility model after a third cover plate is removed.

The embodiment of the utility model discloses a continuous flow valve, which comprises a valve body 1, a Laval nozzle 2, a pressure regulating device 3 and an executing device.

The valve body 1 is generally made of a metal material, of course, other nonmetallic materials meeting the strength requirement can be used for manufacturing the valve body 1, the valve body 1 mainly provides support and mounting positions for other parts of the continuous flow valve, a valve cavity is arranged in the valve body 1, the valve body 1 is provided with an air flow inlet 1b and an air flow outlet 1a which are respectively communicated with the outside, and the valve body 1 is also provided with a mounting part 8 for fixing the continuous flow valve to an engine.

The Laval nozzle 2 is a pipeline which is contracted and expanded firstly and is used for generating supersonic airflow, the Laval nozzle 2 is assembled at the airflow outlet 1a in a sealing way, the Laval nozzle 2 and the airflow outlet 1a can be assembled in a screwing, inserting, bonding and other modes, and the material of the Laval nozzle 2 can be the same as or different from that of the valve body 1.

The pressure adjusting device 3 includes a driving device 301 disposed in the valve body 1 and a valve 302 movably disposed in the air inlet 1b, where the driving device 301 is in transmission connection with the valve 302, the driving device 301 drives the valve 302 to adjust the flow cross section of the air inlet 1b so as to control the pressure in the valve cavity, when the valve 302 is in an integral structure, the valve 302 can be in rotation or translation in a movable mode, and when the valve 302 is formed by multiple valve plates, for example, when the valve 302 includes two valve plates, the two valve plates can be relatively translated so as to realize adjustment of the flow cross section of the air inlet 1b, and when the valve 302 includes more than two valve plates, each valve plate can be translated along the radial direction of the air inlet 1b so as to realize adjustment of the flow cross section of the air inlet 1b, and according to different moving modes of the valve 302, the driving device 301 and the transmission mechanism between the driving device 301 and the valve 302 can be in adaptive design, which is not limited herein.

The actuating device is arranged on one side of the valve body 1 opposite to the air flow outlet 1a, the actuating end of the actuating device passes through the valve cavity and is connected with the valve core 4, the valve core 4 is matched with the Laval nozzle 2 to control the flow cross section of the Laval nozzle 2, the actuating device is used for driving the valve core 4 to reciprocate relative to the Laval nozzle 2 so as to adjust the flow cross section of the Laval nozzle 2, therefore, the actuating device can be a piston cylinder, such as a cylinder or a hydraulic cylinder, or can be a linear motor, or can comprise a rotating motor and a transmission mechanism, the transmission mechanism is used for converting the rotation of the rotating motor into linear reciprocating movement, the transmission mechanism comprises but not limited by a screw slider mechanism, a gear rack mechanism, a cam connecting rod mechanism and the like, the reciprocating movement of the valve core 4 can be realized by adopting a combination of an electromagnetic device and an elastic reset piece.

When the valve is applied, air flow enters the valve cavity from the air inlet 1b, after the air pressure at the inlet of the Laval nozzle 2 and the air back pressure at the outlet reach a critical pressure ratio, sonic flow is formed in the Laval nozzle 2, the outlet back pressure fluctuation of the continuous flow valve does not influence the outlet flow, the flow of the continuous flow valve changes along with the air flow parameters (pressure, density and temperature) at the inlet of the Laval nozzle 2 under the condition, the pressure regulating device 3 realizes the control of the pressure by regulating the position of the valve 302 to achieve the target pressure, and the execution device drives the valve core 4 to act so as to adapt the pressure of the air flow outlet 1a to the pressure of the air inlet 1 b.

Compared with the prior art, the continuous flow valve provided by the embodiment of the utility model adopts the structure of the single valve body 1, the valve body 1 can be in a more regular shape, all functional components are integrated on the valve body 1, the structure is more compact, the occupied space is smaller, the arrangement in an engine and a system is facilitated, the tolerance of the components to vibration and impact environment can be improved, in the manufacturing process, only a mold of the valve body 1 is required to be manufactured, the development cost can be reduced, simultaneously, the air flow inlet 1b and the air flow outlet 1a are arranged on the valve body 1, the air flow entering the valve cavity through the air flow inlet 1b can enter the air flow outlet 1a through only one bending, the design margin of the size space of the air inlet 1b is larger, different design requirements of air inflow can be easily met, the probability that air flows form turbulence and turbulent flow in a valve cavity can be reduced, the air flow control fluctuation of a continuous flow valve is reduced, and the precision of the continuous flow valve is improved, besides, the design of the single valve body 1 is not limited by the size of the primary valve body 1 and the primary actuator in the primary valve body 1 like the design of the secondary valve body 1 in the prior art, and the valve rod of the valve core 4 in the continuous flow valve can be as short as possible, so that the aims of shorter response time and higher response precision are achieved, and the compact structural design of the continuous flow valve is more facilitated.

In a preferred embodiment of the present utility model, as shown in fig. 2, the valve 302 is rotatably disposed in the air inlet 1b, the cross sections of the valve 302 and the air inlet 1b are both circular, the driving device 301 is a rotary driver, and the driving end of the rotary driver is in driving connection with the valve 302 to drive the valve 302 to rotate in the air inlet 1 b.

In order to make the appearance of the valve body 1 more regular, as shown in fig. 2 and 4, the valve body 1 includes a main body 101 and a first cover plate 102, where the first cover plate 102 is in sealing fit with the main body 101 and detachably connected to enclose a first cavity and an air flow inlet 1b, and a rotary driver is disposed in the first cavity. Specifically, the first cover plate 102 is formed by two parts, and the plate body of the first cover plate 102 and the mounting cover are in sealing fit and detachably connected with the main body 101, and enclose a first cavity and the air inlet 1b, and the plate body is provided with a mounting opening at a position corresponding to the driving device 301, and the mounting cover and the plate body are detachably connected to seal the mounting opening.

As shown in fig. 6, in the embodiment of the present utility model, the driving device 301 includes a driving shaft 303, the driving shaft 303 includes a first shaft portion 3031 and a second shaft portion 3032, the first shaft portion 3031 and the second shaft portion 3032 are respectively disposed at two sides of the valve 302 along the rotation axis of the valve 302, one end of the first shaft portion 3031, which is far away from the valve 302, is rotatably disposed at the inner wall of the first cavity, and one end of the second shaft portion 3032, which is far away from the valve 302, is in driving connection with the driving end of the rotary driver, so that the valve 302 can be more stable in the adjustment process through the design.

As shown in fig. 2 and fig. 6, in order to realize accurate control of the flow, in the embodiment of the present utility model, the continuous flow valve further includes a valve core position detecting device 6 and a controller 5, the valve core position detecting device 6 is connected with a signal input end of the controller 5, the executing device is connected with a signal output end of the controller 5, the controller 5 is integrated with a temperature collecting module and a pressure collecting module, the temperature collecting module is used for collecting the air flow temperature in the valve cavity, and the pressure collecting module is used for collecting the air flow pressure in the valve cavity; the controller 5 is used for controlling the action of the executing device according to the detection information of the temperature acquisition module and the pressure acquisition module and combining the feedback information of the valve core position detection device 6 to adjust the position of the valve core 4 so as to realize the accurate control of the position of the valve core 4 and further realize the accurate control of the output flow of the continuous flow valve.

As shown in fig. 1 and 2, in the embodiment of the present utility model, the valve body 1 further includes a second cover plate 103, the second cover plate 103 is detachably connected to the main body 101 to define a second cavity, the valve element position detecting device 6 and the controller 5 are disposed in the second cavity, a through hole is disposed on the second cover plate 103, and a terminal of the controller 5 extends from the through hole so as to facilitate connection of cables.

As shown in fig. 6, in the embodiment of the present utility model, the spool position detecting device 6 includes a magnetic sensitive chip 601 integrated in the controller 5 and a magnetic core 602 disposed on the spool 4, where the magnetic sensitive chip 601 cooperates with the magnetic core 602 to identify the position of the spool 4, and the magnetic core 602 moves with the spool 4, and the magnetic sensitive chip 601 detects a magnetic field change by moving the magnetic core 602 to output different voltages, so as to obtain the position of the spool 4.

It should be noted that, the valve core position detecting device 6 is not limited to the above embodiment, in other embodiments, the valve core position detecting device 6 may be a metal detector, a photoelectric switch, a pressure sensor, etc., when the metal detector is adopted, the detecting end of the metal detector may be directly installed in the valve cavity, or integrated on the controller 5, the triggering end of the metal detector is disposed at the executing end of the valve core 4 or the executing device, when the valve core 4 moves, the triggering end is driven to move close to the detecting end of the metal detector, the detecting end of the metal detector detects the switching signal and then sends the switching signal to the controller 5, and the controller 5 knows the movement condition of the valve core 4 through the switching signal.

If the photoelectric switch is used for detecting the position of the valve core 4, the photoelectric switch can be installed in the valve cavity or can be integrated on the controller 5, when the valve core 4 or the baffle plate at the execution end of the execution device moves to block the light of the photoelectric switch, the photoelectric switch gives out a switch signal and sends the switch signal to the controller 5, and the controller 5 knows the movement condition of the valve core 4 through the switch signal.

If the pressure sensor is used to detect the position of the valve core 4, the pressure sensor is installed between the electromagnetic actuator 7 and the elastic restoring member, when the valve core 4 moves, the elastic restoring member stretches, the acting force of the spring is fed back to the stress surface of the pressure sensor, the pressure sensor sends a signal to the controller 5, and the controller 5 can determine the movement condition of the valve core 4 according to the pressure signal, and of course, the valve core position detecting device 6 is not limited to the above embodiment, and other schemes can be adopted for the valve core position detecting device 6, so long as the position of the valve core 4 can be detected, and the limitation is not limited herein.

As shown in fig. 6, in the embodiment of the present utility model, a limit structure 9 for matching with the valve body 1 or the Laval nozzle 2 is disposed on the valve core 4, where the limit structure 9 is used to make a magnetic core 602 on the valve core 4 stay at an output zero position of the magnetic sensitive chip 601 relative to the magnetic sensitive chip 601 when the execution device drives the valve core 4 to reset.

As shown in fig. 1 to 5, in the embodiment of the present utility model, to facilitate the installation of various components in the valve body 1, the valve body 1 further includes a third cover plate 104, the second cover plate 103 is in sealing engagement with the main body 101 and is detachably connected thereto, and a sidewall of the main body 101 engaged with the second cover plate 103 is provided with a through hole, and the through hole communicates with the valve cavity.

As shown in fig. 1 to 5, in the embodiment of the present utility model, the valve body 1 further includes a fourth cover plate 105, where the fourth cover plate 105 is in sealing fit with and detachably connected to the main body 101, and the fourth cover plate 105 and the main body 101 enclose a third cavity for accommodating the actuator.

Further optimize above-mentioned technical scheme, first apron 102, second apron 103, third apron 104 and fourth apron 105 are located the lateral wall of main part 101 different orientation respectively, and the space that utilizes main part 101 each direction is in order to hold executive device, drive arrangement 301, controller 5 and case position detection device 6 promptly, can realize the make full use of to the space, avoids taking great space in the valve body 1a certain direction, also can make the appearance of valve body 1 regular as far as possible, is favorable to arranging in engine and system.

The embodiment of the utility model also provides a gas engine, which comprises the continuous flow valve in the embodiment, and the technical effect of the gas engine is that the continuous flow valve in the embodiment is adopted in the gas engine, so that the technical effect of the gas engine is that the gas engine refers to the embodiment.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the core concepts of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (13)

1. A continuous flow valve, comprising:

the valve body is internally provided with a valve cavity, and is provided with an air flow inlet and an air flow outlet which are respectively communicated with the outside;

The Laval nozzle is hermetically assembled at the airflow outlet;

The pressure regulating device comprises a driving device arranged on the valve body and a valve movably arranged in the air flow inlet, the driving device is in transmission connection with the valve, and the driving device drives the valve to act so as to regulate the flow cross section of the air flow inlet, so as to control the pressure in the valve cavity;

The actuating device is arranged on one side of the valve body opposite to the airflow outlet, the actuating end of the actuating device penetrates through the valve cavity to be connected with the valve core, and the valve core is matched with the Laval nozzle to control the through flow section of the Laval nozzle.

2. The continuous flow valve of claim 1, wherein the valve is rotatably disposed within the gas flow inlet and the drive means is a rotary drive, the drive end of the rotary drive being drivingly connected to the valve to drive the valve for rotation within the gas flow inlet.

3. The continuous flow valve of claim 2, wherein the valve body comprises a body and a first cover plate sealingly engaged with and detachably connected to the body to enclose a first cavity and the airflow inlet, the rotary actuator being disposed within the first cavity.

4. The continuous flow valve of claim 3, wherein the drive means comprises a drive shaft comprising a first shaft portion and a second shaft portion, the first shaft portion and the second shaft portion being disposed on opposite sides of the valve along a rotational axis of the valve, one end of the first shaft portion remote from the valve being rotatably disposed on an inner wall of the first cavity, one end of the second shaft portion remote from the valve being in driving connection with a drive end of the rotary driver.

5. The continuous flow valve according to claim 3 or 4, further comprising a valve core position detection device and a controller, wherein the valve core position detection device is connected with a signal input end of the controller, the execution device is connected with a signal output end of the controller, the controller is integrated with a temperature acquisition module and a pressure acquisition module, the temperature acquisition module is used for acquiring the air flow temperature in the valve cavity, and the pressure acquisition module is used for acquiring the air flow pressure in the valve cavity;

The controller is used for controlling the actuating device to act according to the detection information of the temperature acquisition module and the pressure acquisition module and combining the feedback information of the valve core position detection device so as to adjust the position of the valve core.

6. The continuous flow valve of claim 5, wherein the valve body further comprises a second cover plate detachably connected to the body to enclose a second cavity, the spool position detection device and the controller being disposed within the second cavity.

7. The continuous flow valve of claim 6, wherein the spool position detection device comprises a magnetically sensitive chip integrated with the controller and a magnetic core disposed on the spool, the magnetically sensitive chip cooperating with the magnetic core to identify the position of the spool.

8. The continuous flow valve according to claim 7, wherein a limit structure is arranged on the valve core and is used for being matched with the valve body or the Laval nozzle, and the limit structure is used for enabling the magnetic core on the valve core to stay at an output zero position of the magnetic sensitive chip relative to the magnetic sensitive chip when the execution device drives the valve core to reset.

9. The continuous flow valve according to any one of claims 6-8, wherein the valve body further comprises a third cover plate sealingly engaged with and detachably connected to the body, and a sidewall of the body engaged with the third cover plate defines a through hole, the through hole being in communication with the valve chamber.

10. The continuous flow valve of claim 9, wherein the valve body further comprises a fourth cover plate sealingly engaged with and detachably connected to the body, the fourth cover plate and the body defining a third cavity for receiving the actuator.

11. The continuous flow valve of claim 10, wherein the first cover plate, the second cover plate, the third cover plate, and the fourth cover plate are each located on differently oriented sidewalls of the body.

12. The continuous flow valve of any one of claims 1-4, 6-8, 10, and 11, wherein the actuator is an electromagnetic actuator.

13. A gas engine comprising a continuous flow valve according to any one of claims 1 to 12.