Engine fuel nozzle

Abstract

The utility model discloses an engine fuel nozzle which comprises a nozzle body and a filter box, the oil inlet end of the nozzle body is communicated and connected with an oil inlet pipe, the other end of the oil inlet pipe is communicated and connected with a second flow meter, and the other end of the second flow meter is communicated and connected with a second connecting pipe. And the other end of the second connecting pipe is communicated and connected with a filter box. The fuel oil nozzle has the advantages that the filter cotton capable of being replaced quickly is adopted, the filter box is located in front of the oil inlet pipe, fuel oil exploding out of an oil pump enters the filter box through the first connecting pipe and penetrates through the through hole to enter the filter cotton, fine impurities are filtered by the filter cotton, and therefore the cleanliness of the fuel oil entering the nozzle body is improved, and the fuel oil nozzle is convenient to use. The nozzle body is prevented from being blocked, the problem that cleaning is difficult due to the fact that the nozzle is blocked is solved, the working stability is improved, meanwhile, a worker can easily rotate the handle to take down the filter cotton, replacement is convenient, and the use convenience is further improved.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and more specifically, to an engine fuel injector. Background Technology

[0002] The combustion quality of an internal combustion engine directly affects a series of performance indicators such as power, economy, and emissions. The quality of fuel atomization is a key factor determining combustion conditions; good atomization is a prerequisite for efficient combustion and is of great significance for energy saving and air purification. Therefore, understanding the atomization mechanism, studying the characteristics and methods of spraying, and elucidating the mixing process between the spray and air are crucial for rationally organizing combustion and improving engine performance.

[0003] A search revealed application number CN202010743521.1, entitled "An Engine Fuel Atomizing Nozzle." This application addresses the issue that existing spray-air mixing methods rely on compression to mix the air spray, failing to achieve proper agitation and thus affecting mixing efficiency. While existing technologies involve multiple mixing steps, this merely prolongs the time air and spray remain in the same space, hindering mixing effectiveness. The proposed solution addresses this by promoting multiple mixing steps, with fuel flowing along the gaps in the spirally wound blades on the intake manifold, thereby agitating the air and fuel, accelerating mixing speed, and improving efficiency. However, this application lacks pre-filtering of the fuel, allowing impurities in the fuel to clog the internal micropores, making cleaning and maintenance difficult and increasing replacement costs, thus affecting the nozzle's stability. Further improvements are warranted.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an engine fuel injector that is convenient and stable to use, thereby solving the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the aforementioned advantages of ease of use and stability, the specific technical solution adopted by this utility model is as follows:

[0009] An engine fuel injector includes an injector body and a filter box. An inlet pipe is connected to the inlet end of the injector body, and a second flow meter is connected to the other end of the inlet pipe. A second connecting pipe is connected to the other end of the second flow meter, and a filter box is connected to the other end of the filter box. A first connecting pipe is connected to the other end of the filter box, and a first flow meter is connected to the other end of the first connecting pipe. A connector is connected to the other end of the first flow meter. An inner cylinder is fixedly installed inside the filter box, and the filter box has a threaded hole. A threaded post is threadedly inserted into the threaded hole. Filter cotton is fixedly installed on the top surface of the threaded post through a connecting post, and the filter cotton is inserted into the inner cylinder.

[0010] Furthermore, the inner cylinder surface is densely perforated, and the outer diameter of the inner cylinder is equal to the internal width of the filter box.

[0011] Furthermore, the filter cotton has a size equal to the internal size of the inner cylinder, and the filter cotton adopts a cylindrical structure.

[0012] Furthermore, a blocking plate is fixedly installed on the bottom surface of the threaded column, and a handle is fixedly installed on the bottom surface of the blocking plate.

[0013] Furthermore, the output terminals of the first and second flow meters are connected to the vehicle's onboard computer.

[0014] Furthermore, a sealing gasket is fixedly installed on the top surface of the blocking plate.

[0015] Furthermore, the connector is connected to the oil outlet of the automotive oil pump.

[0016] Furthermore, the nozzle body has a through-connected oil return pipe at the oil return end, and the oil return pipe is connected to the filter.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides an engine fuel injector, which has the following beneficial effects:

[0019] (1) This utility model adopts a quick-replaceable filter cotton. The filter box is located in front of the oil inlet pipe. The fuel ejected from the oil pump enters the filter box through the first connecting pipe and enters the filter cotton through the through hole. Fine impurities are filtered by the filter cotton, thereby improving the cleanliness of the fuel entering the nozzle body, avoiding nozzle body blockage, avoiding the problem of difficult cleaning caused by nozzle blockage, and improving the stability of operation. At the same time, the operator can easily turn the handle to remove the filter cotton for easy replacement, further improving the convenience of use.

[0020] (2) This utility model adopts a first flow meter and a second flow meter. The first flow meter is located in front of the filter box and the second flow meter is located behind the filter box. The first flow meter detects the flow rate of fuel flowing into the filter box and the second flow meter detects the flow rate of fuel discharged from the filter box. When the two differ significantly, it indicates that the filter cotton is seriously clogged and needs to be replaced. This makes it easier to remind staff to perform maintenance in a timely manner and further improves the convenience of use. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an engine fuel nozzle proposed in this utility model;

[0023] Figure 2 This is a front view of an engine fuel nozzle proposed in this utility model;

[0024] Figure 3 This is an enlarged view of node A of an engine fuel nozzle proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the structure of the filter cotton proposed in this utility model.

[0026] In the picture:

[0027] 1. Nozzle body; 2. Oil return pipe; 3. Connector; 4. First flow meter; 5. First connecting pipe; 6. Filter box; 7. Second connecting pipe; 8. Second flow meter; 9. Oil inlet pipe; 10. Inner cylinder; 11. Filter cotton; 12. Through hole; 13. Threaded hole; 14. Blocking plate; 15. Handle; 16. Connecting post; 17. Threaded post. Detailed Implementation

[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] According to an embodiment of the present invention, an engine fuel nozzle is provided.

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, an engine fuel nozzle according to an embodiment of the present invention includes a nozzle body 1 and a filter box 6. An oil inlet pipe 9 is connected to the oil inlet end of the nozzle body 1, and a second flow meter 8 is connected to the other end of the oil inlet pipe 9. A second connecting pipe 7 is connected to the other end of the second flow meter 8, and the filter box 6 is connected to the other end of the second connecting pipe 7. A first connecting pipe 5 is connected to the other end of the filter box 6, and a first flow meter 4 is connected to the other end of the first connecting pipe 5. A connector 3 is connected to the other end of the first flow meter 4. An inner cylinder 10 is fixedly installed inside the filter box 6, and the filter box 6 has a threaded hole 13. A threaded post 17 is threadedly inserted into the threaded hole 13 for easy rotation and disassembly. Filter cotton 11 is fixedly installed on the top surface of the threaded post 17 via a connecting post 16, and the filter cotton 11 is inserted into the inner cylinder 10. The filter box 6 is located in front of the oil inlet pipe 9. Fuel ejected from the fuel pump enters the filter box 6 through the first connecting pipe 5, passes through the through hole 12, and enters the filter cotton 11. Fine impurities are filtered by the filter cotton 11, thereby improving the cleanliness of the fuel entering the nozzle body 1, preventing the nozzle body 1 from becoming clogged, avoiding the cleaning difficulties caused by nozzle clogging, and improving the stability of operation. At the same time, the operator can easily turn the handle 15 to remove the filter cotton 11 for easy replacement, further improving the convenience of use. Meanwhile, the first flow meter 4 is located in front of the filter box 6, and the second flow meter 8 is located behind the filter box 6. The first flow meter 4 detects the flow rate of fuel flowing into the filter box 6, and the second flow meter 8 detects the flow rate of fuel exiting the filter box 6. When the two flow meters differ significantly, it indicates that the filter cotton 11 is severely clogged and needs to be replaced, which helps to remind the operator to perform timely maintenance, further improving the convenience of use.

[0031] In one embodiment, the inner cylinder 10 has densely packed through holes 12 on its surface, and the outer diameter of the inner cylinder 10 is equal to the inner width of the filter box 6. Part of the outer wall of the inner cylinder 10 abuts against the inner wall of the filter box 6 to prevent unfiltered fuel from entering the second connecting pipe 7.

[0032] In one embodiment, the size of the filter cotton 11 is equal to the internal size of the inner cylinder 10, and the filter cotton 11 adopts a cylindrical structure, while the inner cylinder 10 adopts a cylindrical structure.

[0033] In one embodiment, a blocking plate 14 is fixedly installed on the bottom surface of the threaded column 17, and a handle 15 is fixedly installed on the bottom surface of the blocking plate 14 for easy rotation.

[0034] In one embodiment, the output terminals of the first flow meter 4 and the second flow meter 8 are connected to the vehicle-mounted computer for easy monitoring by staff.

[0035] In one embodiment, a sealing gasket is fixedly installed on the top surface of the blocking plate 14 to improve the sealing performance.

[0036] In one embodiment, connector 3 is connected to the oil outlet of the car oil pump for convenient oil supply.

[0037] In one embodiment, the return oil end of the nozzle body 1 is connected to the return oil pipe 2, and the return oil pipe 2 is connected to the filter to facilitate oil return.

[0038] Working principle:

[0039] The filter box 6 is located in front of the fuel inlet pipe 9. Fuel ejected from the fuel pump enters the filter box 6 through the first connecting pipe 5, passes through the through hole 12, and enters the filter cotton 11. Fine impurities are filtered by the filter cotton 11, thereby improving the cleanliness of the fuel entering the nozzle body 1, preventing the nozzle body 1 from becoming clogged, avoiding the cleaning difficulties caused by nozzle clogging, and improving the stability of operation. At the same time, the operator can easily turn the handle 15 to remove the filter cotton 11 for easy replacement, further improving the convenience of use. Meanwhile, the first flow meter 4 is located in front of the filter box 6, and the second flow meter 8 is located behind the filter box 6. The first flow meter 4 detects the flow rate of fuel flowing into the filter box 6, and the second flow meter 8 detects the flow rate of fuel exiting the filter box 6. When the two differ significantly, it indicates that the filter cotton 11 is severely clogged and needs to be replaced, which helps to remind the operator to perform timely maintenance, further improving the convenience of use.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An engine fuel nozzle characterized by, Including nozzle body (1) and filter box (6), the oil inlet end of the nozzle body (1) is connected with oil inlet pipe (9), and the other end of the oil inlet pipe (9) is connected with the second flow meter (8), and the other end of the second flow meter (8) is connected with the second connecting pipe (7), the other end of the second connecting pipe (7) is connected with the filter box (6), and the other end of the filter box (6) is connected with the first connecting pipe (5), and the other end of the first connecting pipe (5) is connected with the first flow meter (4), the other end of the first flow meter (4) is connected with the joint (3), the inside of the filter box (6) is fixedly installed with the inner cylinder (10), the filter box (6) is provided with a threaded hole (13), and the threaded hole (13) is internally threaded with a threaded column (17), the top surface of the threaded column (17) is fixedly installed with the filter cotton (11) through the connecting column (16), and the filter cotton (11) is inserted into the inner cylinder (10).

2. An engine fuel nozzle as claimed in claim 1, wherein The inner cylinder (10) is densely provided with through holes (12) on the surface, and the outer diameter of the inner cylinder (10) is equal to the internal width of the filter box (6).

3. An engine fuel nozzle as in claim 1, wherein, The size of the filter cotton (11) is equal to the internal size of the inner cylinder (10), and the filter cotton (11) adopts a cylindrical structure.

4. An engine fuel nozzle as in claim 1, wherein, The bottom surface of the threaded column (17) is fixedly installed with the blanking plate (14), and the bottom surface of the blanking plate (14) is fixedly installed with the handle (15).

5. An engine fuel nozzle as in claim 1, wherein, The output end of the first flow meter (4) and the second flow meter (8) is connected to the vehicle-mounted computer.

6. An engine fuel nozzle as claimed in claim 4, wherein The top surface of the blanking plate (14) is fixedly installed with the sealing washer.

7. An engine fuel nozzle as in claim 1, wherein, The joint (3) is connected to the oil outlet end of the automobile oil pump.

8. An engine fuel nozzle as in claim 1, wherein, The oil return pipe (2) is connected to the oil return pipe (2) of the nozzle body (1), and the oil return pipe (2) is connected to the oil filter.

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