Fuel gas pressure reduction regulating valve for vehicle

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a vehicle fuel gas pressure reduction regulating valve which comprises a main body, a front valve cover and a rear valve cover, a partition plate is arranged in the main body, an intercommunication cavity is formed in the center of the partition plate, the partition plate divides the interior of the main body into an upper cavity and a lower cavity, and a first pressure reduction valve cavity is formed in the upper cavity and the front valve cover. A first pressure reducing valve cavity is formed in the upper cavity, a second pressure reducing valve cavity is formed in the lower cavity and the rear valve deck, the first pressure reducing valve cavity and the second pressure reducing valve cavity are communicated through an intercommunication cavity, and the main body is divided into the upper cavity and the lower cavity through the front valve deck, the rear valve deck and the partition plate to form the first pressure reducing valve cavity and the second pressure reducing valve cavity which are communicated through the intercommunication cavity. And the gas in the main body can be subjected to pressure reduction regulation, so that the smooth circulation of the gas between the two cavities is ensured. The problem of sealing failure caused by impurity accumulation is avoided, the shock resistance of the gas pressure reduction regulating valve is effectively improved, and a continuous and stable working gas source of an engine is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field, specifically relates to a kind of vehicle gas pressure reducing regulating valve. BACKGROUND

[0002] Gas pressure reducing valve is commonly known as pressure regulator, it is through the automatic change gas flow of reducing valve and makes export gas to keep the equipment of specified pressure, usually divided into direct-acting type and indirect-acting type two kinds.Reducing valve is a kind of device, can keep downstream pressure stable regardless of the flow and upstream pressure of gas change, the biggest function of reducing valve is to keep gas stable pressure when using, so as to ensure that gas appliance obtains stable air ratio (the matching ratio of gas and air);Gas supply system uses reducing valve to reduce gas pressure and stabilize at a proper level, so that gas can be safely, economically and efficiently used.

[0003] However, the current vehicle gas pressure reducing pressure regulating valve pressure is too large to exceed engine working pressure and can cause harm to engine, plays a vital role to engine safety gas pressure regulating valve, and is prone to cause valve vibration, impurities jamming, pressure instability, large flow error and sealing failure and other faults. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of vehicle gas pressure reducing regulating valve, first pressure reducing valve cavity and second pressure reducing valve cavity are formed by the upper cavity and lower cavity of the main body separated by front valve cover and rear valve cover and communicated by intercommunication cavity, can carry out pressure reducing regulation to the gas in the main body, solve the problem that the current vehicle gas pressure reducing pressure regulating valve pressure is too large to exceed engine working pressure and can cause harm to engine, plays a vital role to engine safety gas pressure regulating valve, and is prone to cause valve vibration, impurities jamming, pressure instability, large flow error and sealing failure and other faults.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of vehicle gas pressure reducing regulating valve, including main body, front valve cover and rear valve cover, the inside of main body is provided with baffle, intercommunication cavity is set in the center of baffle, and the inside of main body is formed into upper cavity and lower cavity by baffle, and the first pressure reducing valve cavity is formed by the inside of upper cavity and front valve cover, and the second pressure reducing valve cavity is formed by the inside of lower cavity and rear valve cover, and the first pressure reducing valve cavity and the second pressure reducing valve cavity are communicated by intercommunication cavity.

[0006] Preferably, the connecting place of intercommunication cavity and first pressure reducing valve cavity is provided with first communication pipe, and the connecting place of intercommunication cavity and second pressure reducing valve cavity is provided with second communication pipe.

[0007] Preferably, the inner diameter of first communication pipe is greater than the inner diameter of intercommunication cavity, and the inner diameter of intercommunication cavity is greater than the inner diameter of second communication pipe.

[0008] Preferably, the first interface and the second interface are symmetrically arranged on the main body, the bottom end of the first interface is communicated with the first pressure reducing valve cavity, and the bottom end of the second interface is communicated with the intercommunication cavity.

[0009] Preferably, the valve interface is arranged on one side of the main body, and the bottom end of the valve interface is communicated with the first pressure reducing valve cavity.

[0010] Preferably, the third interface and the fourth interface are symmetrically arranged on two sides of the second interface, the fifth interface is arranged on the side of the valve interface, and the bottom end of the fifth interface is communicated with the third interface and the fourth interface.

[0011] Preferably, the center of the front valve cover is provided with an air inlet, the bottom end of the air inlet is communicated with the first pressure reducing valve cavity, and the center of the rear valve cover is provided with an air outlet, and the bottom end of the air outlet is communicated with the second pressure reducing valve cavity.

[0012] Preferably, the sealing grooves are arranged at the connection positions of the main body, the front valve cover and the rear valve cover, and the gaskets are arranged in the sealing grooves.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the upper cavity and the lower cavity formed by the front valve cover, the rear valve cover and the partition plate are divided into the first pressure reducing valve cavity and the second pressure reducing valve cavity and communicated through the intercommunication cavity, the gas in the main body can be reduced and regulated, and the smooth flow of the gas between the two cavities is ensured. The problem of impurity accumulation and sealing failure is avoided, the anti-vibration capacity of the gas pressure reducing valve is effectively improved, and the continuous and stable working gas source of the engine is ensured.

[0014] Additional aspects and advantages of the utility model will be given in part in the following description, and some will become obvious from the following description or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure diagram of a vehicle gas pressure reducing regulating valve Figure 1 .

[0016] Figure 2 It is a three-dimensional structure diagram of a vehicle gas pressure reducing regulating valve Figure 2 .

[0017] Figure 3 It is a three-dimensional structure diagram of a vehicle gas pressure reducing regulating valve Figure 1 .

[0018] Figure 4 It is a three-dimensional structure diagram of a vehicle gas pressure reducing regulating valve Figure 2 .

[0019] Figure 5 It is a sectional view of a vehicle gas pressure reducing regulating valve.

[0020] Figure 6 It is a kind of vehicle gas pressure regulating valve body three-dimensional structure schematic view.

[0021] In the figure: 1, main body;11, first interface;12, second interface;13, third interface;14, fourth interface;15, fifth interface;2, front valve cover;21, air inlet;3, rear valve cover;31, gas outlet;4, partition;41, intercommunication cavity;411, first communication pipe;412, second communication pipe;5, upper cavity;6, lower cavity;7, valve interface;8, first pressure reducing valve cavity;9, second pressure reducing valve cavity;10, sealing groove. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail below with reference to the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application. All other examples obtained by those skilled in the art without creative labor are within the scope of the present application.

[0023] Combined with Figure 1 , Figure 2 , Figure 3 and Figure 4 , a kind of vehicle gas pressure regulating valve, including main body 1, front valve cover 2 and rear valve cover 3, main body 1 inside is provided with partition 4, partition 4 center is provided with intercommunication cavity 41, partition 4 is separated into upper cavity 5 and lower cavity 6 in main body 1, upper cavity 5 and the inside of front valve cover 2 form first pressure reducing valve cavity 8, lower cavity 6 and the inside of rear valve cover 3 form second pressure reducing valve cavity 9, first pressure reducing valve cavity 8 and second pressure reducing valve cavity 9 are connected by intercommunication cavity 41.

[0024] The utility model provides a kind of vehicle gas pressure regulating valve, mainly by main body 1, front valve cover 2 and rear valve cover 3 these big core components constitute. Main body 1 as the support frame of entire valve body, ensure the stable operation of valve body under harsh working conditions. A partition 4 is arranged in the inside of main body 1, by the separation effect of partition 4, main body 1 inside is effectively separated into upper cavity 5 and lower cavity 6 two independent spaces. Partition 4 center position is provided with an intercommunication cavity 41, intercommunication cavity 41 as the bridge connecting upper cavity 5 and lower cavity 6, ensure the smooth flow of fluid between two cavities.

[0025] The upper cavity 5 and the interior of the front valve cover 2 jointly form a first pressure relief valve cavity 8. The first pressure relief valve cavity 8 can effectively regulate and reduce the fluid pressure entering the valve body. The lower cavity 6 and the interior of the rear valve cover 3 also jointly form a second pressure relief valve cavity 9. The second pressure relief valve cavity 9 and the first pressure relief valve cavity 8 complement each other in function, together constituting the pressure relief system of the valve body. Through the coordinated action of the two pressure relief valve cavities, the valve body can achieve precise control and regulation of fluid pressure.

[0026] The first pressure relief valve cavity 8 and the second pressure relief valve cavity 9 are connected through the intercommunication cavity 41 on the partition plate 4. Not only does it ensure smooth flow of fluid between the two pressure relief valve cavities, but also makes the overall structure of the valve body more compact and reasonable.

[0027] In order to further optimize the fluid flow path, as shown in Figure 1 , Figure 2 and Figure 5 , the intercommunication cavity 41 is provided with a first communication pipe 411 at the connection with the first pressure relief valve cavity 8, and a second communication pipe 412 at the connection with the second pressure relief valve cavity 9.

[0028] As shown in Figure 2 , Figure 3 , Figure 4 and Figure 5 , the inner diameter of the first communication pipe 411 is greater than that of the intercommunication cavity 41, and the inner diameter of the intercommunication cavity 41 is greater than that of the second communication pipe 412.

[0029] The inner diameter of the first communication pipe 411 is greater than that of the intercommunication cavity 41. This allows the fluid flowing from the first pressure relief valve cavity 8 into the intercommunication cavity 41 to transition more smoothly, reducing resistance and pressure loss at the connection. At the same time, the larger inner diameter also helps to increase the flow rate and flow of fluid, thereby improving the overall performance of the valve body.

[0030] The inner diameter of the second communication pipe 412 is smaller than that of the intercommunication cavity 41. Fluid flowing from the lower cavity 6 into the second pressure relief valve cavity 9 may need to be more finely regulated and controlled. The smaller inner diameter allows the fluid to experience greater resistance when passing through the second communication pipe 412, thereby slowing down the flow rate and increasing the residence time of the fluid in the second pressure relief valve cavity 9, which is conducive to achieving more precise pressure relief.

[0031] Through the different inner diameter designs of the first communication pipe 411 and the second communication pipe 412, the valve body can achieve precise control and regulation of fluid flow. Not only does it improve the pressure relief performance of the valve body, but also makes the valve body more adaptable and flexible when dealing with different working conditions and fluid characteristics.

[0032] As shown in Figure 2 , Figure 3 ,Figure 4 and Figure 6 As shown in

[0033] The bottom end of the first interface 11 is connected to the first pressure reducing valve cavity 8, so that external fluid can smoothly enter the first pressure reducing valve cavity 8 through the first interface 11 and receive pressure reduction treatment. At the same time, the fluid after pressure reduction can also flow out of the first pressure reducing valve cavity 8 through the first interface 11, realizing smooth circulation and effective use of the fluid.

[0034] The bottom end of the second interface 12 is connected to the intercommunication cavity 41. As a key channel connecting the upper and lower cavities, the intercommunication cavity 41 allows external fluid to directly enter the intercommunication cavity 41 through the second interface 12, and then flow into the lower cavity 6 or the second pressure reducing valve cavity 9 for further treatment or adjustment. Similarly, the fluid in the lower cavity 6 or the second pressure reducing valve cavity 9 can also flow out of the valve body through the second interface 12 and the intercommunication cavity 41.

[0035] In combination with Figure 2 , Figure 3 , Figure 4 and Figure 6 , the valve interface 7 is provided on one side of the main body 1, which not only meets the demand of fluid control, but also enhances the functionality and flexibility of the valve body.

[0036] The bottom end of the valve interface 7 is connected to the first pressure reducing valve cavity 8, so that external fluid can smoothly enter the first pressure reducing valve cavity 8 through the valve interface 7. In the first pressure reducing valve cavity 8, the fluid can receive pressure reduction treatment to meet the demand of subsequent process or equipment for fluid pressure. At the same time, the fluid after pressure reduction treatment can also flow out of the first pressure reducing valve cavity 8 through the valve interface 7, realizing effective circulation and use of the fluid.

[0037] In combination with Figure 2 , Figure 3 , Figure 4 and Figure 6 , the third interface 13 and the fourth interface 14 are symmetrically provided on both sides of the second interface 12. This symmetrical design not only ensures the balance and aesthetics of the valve body structure, but also makes the fluid more smoothly and efficiently enter and exit the valve body. The bottom ends of the third interface 13 and the fourth interface 14 are respectively connected to an internal channel, which is closely connected to the fluid control system inside the valve body, thereby realizing accurate control and adjustment of fluid flow.

[0038] The fifth interface 15 is connected with the bottom ends of the third interface 13 and the fourth interface 14. Through this design, the fifth interface 15 can serve as a backup fluid channel, which can continue to maintain the normal flow of fluid and stable operation of the system when other interfaces or fluid control systems fail. At the same time, the fifth interface 15 can also serve as a detection or maintenance interface, making it convenient for users to detect, repair or replace the fluid control system inside the valve body.

[0039] In combination with Figure 2 , Figure 3 and Figure 4 , the front valve cover 2 has an air inlet 21 in the center. The air inlet 21 not only meets the demand of fluid entering the valve body, but also ensures smooth flow of fluid. The bottom end of the air inlet 21 is connected with the first pressure reducing valve cavity 8, so that external fluid can smoothly enter the first pressure reducing valve cavity 8 through the air inlet 21 and be subjected to pressure reduction. In the first pressure reducing valve cavity 8, the fluid can be effectively adjusted to the required pressure range to meet the demand of subsequent processes or equipment for fluid pressure.

[0040] The rear valve cover 3 has an air outlet 31 in the center. The design of the air outlet 31 also takes into account the smooth flow of fluid and the functionality of the valve body. The bottom end of the air outlet 31 is connected with the second pressure reducing valve cavity 9, so that the fluid subjected to pressure reduction can smoothly flow out of the valve body from the second pressure reducing valve cavity 9 through the air outlet 31 and enter the subsequent processes or equipment.

[0041] In combination with

[0038] , Figure 3 and Figure 4 , the main body 1, the front valve cover 2 and the rear valve cover 3 are all provided with sealing grooves 10 at the connection positions. The sealing grooves 10 provide additional sealing protection for the valve body, effectively preventing fluid leakage.

[0042] The sealing grooves 10 are provided with gaskets. These gaskets are made of high-elasticity and wear-resistant materials, which can maintain good sealing performance under various working conditions. The shape and size of the gaskets are accurately calculated and manufactured to ensure that they can tightly fit in the sealing grooves 10 and form a solid sealing barrier. When the valve body is in working condition, fluid will not easily leak out from the gap between the gaskets and the sealing grooves 10 under the action of high pressure or high temperature.

[0043] The utility model discloses preferable specific implementation, but the protection scope of the utility model is not limited to this, any person skilled in the art in the utility model disclosed technical range, according to the utility model technical scheme and its utility model concept are equivalent to replace or change, all should be covered in the protection scope of the utility model.

Claims

1. A gas pressure reducing regulator for vehicles, comprising a main body (1), a front valve cover (2) and a rear valve cover (3), characterized in that, The main body (1) is internally provided with a partition plate (4), the center of the partition plate (4) is provided with an intercommunication cavity (41), the partition plate (4) divides the inside of the main body (1) into an upper cavity (5) and a lower cavity (6), the upper cavity (5) and the inside of the front valve cover (2) form a first pressure reducing valve cavity (8), the lower cavity (6) and the inside of the rear valve cover (3) form a second pressure reducing valve cavity (9), the first pressure reducing valve cavity (8) and the second pressure reducing valve cavity (9) are communicated through the intercommunication cavity (41).

2. The gas pressure reducing regulator valve for vehicle according to claim 1, wherein The intercommunication cavity (41) is provided with a first communication pipe (411) at the connection with the first pressure reducing valve cavity (8), and is provided with a second communication pipe (412) at the connection with the second pressure reducing valve cavity (9).

3. The gas pressure reducing regulator valve for vehicle according to claim 2, wherein The inner diameter of the first communication pipe (411) is larger than the inner diameter of the intercommunication cavity (41), and the inner diameter of the intercommunication cavity (41) is larger than the inner diameter of the second communication pipe (412).

4. The gas pressure reducing regulator valve for vehicle according to claim 1, wherein The main body (1) is symmetrically provided with a first interface (11) and a second interface (12) on the bottom, the first interface (11) is communicated with the first pressure reducing valve cavity (8), and the second interface (12) is communicated with the intercommunication cavity (41).

5. The gas pressure reducing regulator valve for vehicle according to any one of claims 1 to 4, characterized in that, The main body (1) is provided with a valve interface (7) on one side, and the bottom of the valve interface (7) is communicated with the first pressure reducing valve cavity (8).

6. The gas pressure reducing regulator valve for vehicle as set forth in claim 5, wherein The second interface (12) is symmetrically provided with a third interface (13) and a fourth interface (14) on both sides, and the valve interface (7) is provided with a fifth interface (15) on the side, and the fifth interface (15) is communicated with the bottom of the third interface (13) and the fourth interface (14) respectively.

7. The gas pressure reducing regulator valve for vehicle according to claim 6, wherein The center of the front valve cover (2) is provided with an air inlet (21), and the bottom of the air inlet (21) is communicated with the first pressure reducing valve cavity (8); the center of the rear valve cover (3) is provided with an air outlet (31), and the bottom of the air outlet (31) is communicated with the second pressure reducing valve cavity (9).

8. The gas pressure reducing regulator valve for vehicle according to claim 7, wherein The main body (1) and the front valve cover (2) and the rear valve cover (3) are provided with a sealing groove (10) at the connection, and the sealing groove (10) is provided with a gasket.

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