Spraying orifice plate for oil nozzle

Abstract

The orifice plate for the oil nozzle comprises a shell, a transparent plate, a nozzle, a pressurizing plate, an auxiliary cavity, a flow guide groove, an oil conveying pipe, a cover plate and an oil conveying port, the inner side of the shell is fixedly connected with a circular cross-shaped limiting ring, the outer wall of the transparent plate is provided with a limiting port corresponding to the limiting ring, the interior of the shell is connected with the transparent plate in a buckled mode, and the outer wall of the transparent plate is connected with the pressurizing plate in a buckled mode. A plurality of nozzles are connected to one side of the transparent plate in a penetrating mode, the nozzles are conical spraying holes inclined relative to the surface of the transparent plate, the rear side of the transparent plate is arranged to be the conical spraying holes with the outer ring higher than the inner ring and the spraying holes inclined relative to the surface of the transparent plate, and due to the design, fuel oil can collide with the spraying hole walls in the spraying process, oil droplets are promoted to become small, and the fuel oil can be sprayed more evenly. And the oil droplets collide with one another, so that pre-atomization is realized, the atomization quality of fuel oil is effectively improved, and the fuel oil is combusted more sufficiently.

Description

Technical Field

[0001] This utility model relates to the field of oil injection technology, specifically to a nozzle orifice plate for an oil injector. Background Technology

[0002] In an engine's fuel injection system, the performance of the fuel injector plays a decisive role in fuel injection efficiency and combustion efficiency. Traditional fuel injector orifice plates have numerous drawbacks, severely impacting overall engine performance. Firstly, the orifices in traditional orifice plates are mostly vertical straight holes, resulting in poor fuel atomization and incomplete fuel-air mixing, leading to incomplete combustion. This not only reduces engine power output but also increases fuel consumption, wasting energy. Secondly, the vertical straight hole design makes it easy for impurities and carbon deposits to adhere to the inner wall of the orifice, causing blockage, uneven fuel injection, engine instability, and increased maintenance costs. Simultaneously, traditional fuel injector orifice plates lack effective design for fuel delivery and pretreatment, failing to properly converge, guide, and pressurize fuel, thus failing to meet the demands of modern engines for efficient and environmentally friendly combustion. These problems urgently require an innovative fuel injector orifice plate to address, improving engine performance and reliability while reducing environmental pollution. Therefore, an improved fuel injector orifice plate is needed to solve these issues. Utility Model Content

[0003] In view of this, the present invention provides a nozzle orifice plate for fuel injectors to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0004] The technical solution of this utility model embodiment is implemented as follows: A nozzle nozzle spray plate includes a shell, a through plate, a nozzle, a booster plate, a secondary cavity, a guide groove, an oil supply pipe, a cover plate, and an oil supply port. A circular cross-shaped limiting ring is fixedly connected to the inner side of the shell. A limiting opening corresponding to the limiting ring is opened on the outer wall of the through plate. The through plate is fastened to the inside of the shell. A plurality of nozzles are connected through one side of the through plate. The nozzles are conical spray holes that are inclined relative to the surface of the through plate. The rear side of the through plate is configured such that the outer ring is higher than the inner ring.

[0005] More preferably, a sealing plate is fixedly connected to the rear side of the through plate, a secondary cavity is provided between the through plate and the sealing plate, and a guide groove is provided between the through plate and the sealing plate, corresponding to the nozzle, and the guide groove is in communication with the secondary cavity.

[0006] More preferably, a pressure boosting plate is provided inside the secondary cavity.

[0007] More preferably, an oil delivery pipe is fixedly and continuously connected to the top of the sealing plate, and an oil delivery port is provided between the sealing plate and the oil delivery pipe.

[0008] More preferably, the oil inlet, oil pipe, secondary cavity, guide groove and nozzle are interconnected.

[0009] This utility model embodiment, due to the adoption of the above technical solution, has the following advantages: In this utility model

[0010] 1. The nozzle is a conical nozzle that is inclined relative to the surface of the through plate. This design allows the fuel to impact the nozzle wall during injection, causing the fuel droplets to become smaller. The fuel droplets collide with each other, achieving pre-atomization, effectively improving the atomization quality of the fuel and making the fuel burn more completely. The rear side of the through plate is set so that the outer ring is higher than the inner ring, which helps to guide the fuel flow. Combined with the inclined conical nozzle, it further optimizes the fuel injection path and improves the uniformity and efficiency of fuel injection.

[0011] 2. A secondary cavity is set between the through plate and the sealing plate, and a guide groove is provided at the corresponding position of the nozzle, which is connected to the secondary cavity. This structure can initially gather and guide the fuel, so that the fuel enters the nozzle more evenly. At the same time, it provides conditions for the fuel to form a vortex in the secondary cavity, which is conducive to further fuel atomization. A pressure plate is set inside the secondary cavity, which can form a great pressure in the secondary cavity through compression after the fuel enters the secondary cavity. Combined with the guide groove, it promotes the formation of a vortex in the fuel in the secondary cavity, enhances the fuel atomization effect, and improves engine performance. The top of the sealing plate is fixedly connected to the fuel supply pipe. A fuel inlet is opened between the sealing plate and the fuel supply pipe. The fuel inlet, fuel supply pipe, secondary cavity, guide groove and nozzle are interconnected to form an integrated fuel delivery channel, ensuring the smoothness and stability of fuel delivery.

[0012] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional sectional view of the present invention.

[0016] Figure 3 This is an internal structural diagram of the overall three-dimensional cover plate of this utility model when opened;

[0017] Figure 4 This is a schematic diagram of the overall three-dimensional oil pipeline, oil inlet, and through plate assembly of this utility model;

[0018] Figure 5 This is a structural diagram of the outer shell of this utility model;

[0019] Figure 6 This is a structural diagram of the through plate of this utility model.

[0020] Reference numerals in the attached drawings: 1. Outer shell; 11. Limiting ring; 2. Through plate; 21. Limiting port; 3. Nozzle; 4. Pressure plate; 5. Secondary chamber; 6. Guide groove; 7. Oil pipe; 8. Cover plate; 9. Oil inlet; 10. Sealing plate. Detailed Implementation

[0021] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0022] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] Example

[0024] like Figures 1-6 As shown, this utility model embodiment provides a nozzle orifice plate for an injector, including a housing 1, a through plate 2, a nozzle 3, a booster plate 4, a secondary cavity 5, a guide groove 6, an oil supply pipe 7, a cover plate 8, and an oil supply port 9. A circular cross-shaped limiting ring 11 is fixedly connected to the inner side of the housing 1. A limiting port 21 corresponding to the limiting ring 11 is opened on the outer wall of the through plate 2. The through plate 2 is fastened to the inside of the housing 1. A plurality of nozzles 3 are connected through one side of the through plate 2. The nozzles 3 are conical spray holes that are inclined relative to the surface of the through plate 2. The rear side of the through plate 2 is set such that the outer ring is higher than the inner ring, and the circular cross-shaped limiting ring 11 is fixedly connected to the inner side of the housing 1. Next, the through plate 2, which has a limiting opening 21 corresponding to the limiting ring 11, is fastened inside the outer shell 1, ensuring that the through plate 2 is installed securely. Then, the sealing plate 10 is fixedly connected to the rear side of the through plate 2, forming a secondary cavity 5 between the through plate 2 and the sealing plate 10. At the same time, a guide groove 6 is set between the through plate 2 and the sealing plate 10, corresponding to the nozzle 3, ensuring that the guide groove 6 is connected to the secondary cavity 5. After that, the pressure plate 4 is installed inside the secondary cavity 5. Finally, the oil supply pipe 7 is fixedly connected to the top of the sealing plate 10, ensuring that the oil supply port 9 between the sealing plate 10 and the oil supply pipe 7 is correctly opened. At this point, the entire nozzle plate assembly is complete.

[0025] In one embodiment, a sealing plate 10 is fixedly connected to the rear side of the through plate 2, a secondary cavity 5 is provided between the through plate 2 and the sealing plate 10, and a guide groove 6 is provided between the through plate 2 and the sealing plate 10 and at the location corresponding to the nozzle 3, and the guide groove 6 and the secondary cavity 5 are connected.

[0026] In one embodiment, a pressure plate 4 is specifically provided inside the secondary cavity 5. Inside the secondary cavity 5, the pressure plate 4 compresses the fuel, causing a sharp increase in pressure within the secondary cavity 5. Under high pressure, the fuel enters the secondary cavity 5 through the guide channel 6 and forms a vortex, achieving preliminary mixing and atomization.

[0027] In one embodiment, specifically, the top end of the sealing plate 10 is fixedly connected to an oil pipeline 7, and an oil outlet 9 is provided between the sealing plate 10 and the oil pipeline 7.

[0028] In one embodiment, the oil inlet 9, oil pipe 7, secondary cavity 5, guide groove 6, and nozzle 3 are interconnected.

[0029] In operation, this invention works as follows: First, a circular cross-shaped limiting ring 11 is fixedly connected to the inner side of the outer shell 1. Then, a through plate 2 with a limiting port 21 corresponding to the limiting ring 11 is fastened inside the outer shell 1, ensuring that the through plate 2 is securely installed. Next, a sealing plate 10 is fixedly connected to the rear side of the through plate 2, forming a secondary cavity 5 between the through plate 2 and the sealing plate 10. Simultaneously, a guide groove 6 is set between the through plate 2 and the sealing plate 10, corresponding to the nozzle 3, ensuring that the guide groove 6 is connected to the secondary cavity 5. Afterward, a pressure boosting plate 4 is installed inside the secondary cavity 5. Finally, a fuel supply pipe 7 is fixedly connected to the top of the sealing plate 10, ensuring that the fuel inlet 9 between the sealing plate 10 and the fuel supply pipe 7 is correctly opened. At this point, the entire nozzle plate assembly is complete. Fuel enters the fuel supply pipe 7 through the fuel inlet 9 and then flows into the secondary cavity 5. Inside the secondary cavity 5, the pressure boosting plate 4 compresses the fuel, causing a rapid increase in pressure within the secondary cavity 5. Under high pressure, fuel enters the secondary cavity 5 through the guide groove 6 and forms a vortex, achieving preliminary mixing and atomization. Subsequently, the pre-treated fuel is injected from the inclined conical nozzle 3 surrounding one end of the secondary cavity 5. Due to the inclined design of the nozzle 3, the fuel impacts the nozzle wall again during the injection process, further refining the fuel droplets and achieving better atomization. This allows the fuel to burn completely in the combustion chamber, improving the engine's economy and power, reducing exhaust emissions, and meeting environmental protection requirements.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A nozzle orifice plate for an injector, comprising a housing (1), a through plate (2), a nozzle (3), a pressure plate (4), a secondary cavity (5), a guide groove (6), an oil delivery pipe (7), a cover plate (8), and an oil delivery port (9), characterized in that: The inner side of the outer shell (1) is fixedly connected with a circular cross-shaped limiting ring (11). The outer wall of the through plate (2) is provided with a limiting port (21) corresponding to the limiting ring (11). The inside of the outer shell (1) is fastened to the through plate (2). A plurality of nozzles (3) are connected through one side of the through plate (2). The nozzles (3) are conical spray holes that are inclined relative to the surface of the through plate (2). The rear side of the through plate (2) is configured such that the outer ring is higher than the inner ring.

2. The nozzle orifice plate for a fuel injector according to claim 1, characterized in that: A sealing plate (10) is fixedly connected to the rear side of the through plate (2). A secondary cavity (5) is provided between the through plate (2) and the sealing plate (10). A guide groove (6) is provided between the through plate (2) and the sealing plate (10) and at the position corresponding to the nozzle (3). The guide groove (6) and the secondary cavity (5) are connected.

3. The nozzle orifice plate for an injector according to claim 2, characterized in that: A pressure booster plate (4) is provided inside the secondary cavity (5).

4. The nozzle orifice plate for an injector according to claim 2, characterized in that: The top of the sealing plate (10) is fixedly connected to an oil pipe (7), and an oil outlet (9) is provided between the sealing plate (10) and the oil pipe (7).

5. The nozzle orifice plate for an injector according to claim 4, characterized in that: The oil inlet (9), oil pipe (7), secondary cavity (5), guide groove (6) and nozzle (3) are interconnected.

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