A marine decontaminated diesel engine fuel nozzle assembly

Abstract

The utility model relates to the technical field of oil injection nozzle, concretely relates to a marine impurity-removed diesel engine oil injection nozzle assembly, including the oil injection main part, be provided with the spout on the oil injection main part, the side of oil injection main part is provided with the oil inlet, be provided with the impurity removal system for preventing the larger particle impurity to enter the oil injection nozzle assembly on the oil injection main part, the anti -unscrewing mechanism for preventing the fuel leakage between the impurity removal system and the oil injection main part is arranged between the impurity removal system and the oil injection main part. Through setting up the impurity removal system at the oil inlet, the power piece is not easy to be affected by the high temperature of the combustion chamber, and the anti -blocking mechanism can make the filter plate keep stable filtering effect, make the filter plate can continuously and efficiently filter the impurity in the fuel, prevent the impurity from entering the oil injection nozzle and fuel system, solve the high temperature in the combustion chamber can influence the performance of motor even cause the trouble, make the technical problem that the flow -directing type oil injection nozzle cleaning function is not stable.

Description

Technical Field

[0001] This utility model relates to the field of fuel injector technology, specifically to a marine diesel engine fuel injector assembly for impurity removal. Background Technology

[0002] The fuel injector assembly is a crucial component of marine diesel engines, responsible for efficiently injecting fuel into the combustion chamber to achieve optimal combustion. The injector body is the main part of the assembly, housing other components. The injector body is generally cylindrical and made of high-pressure resistant materials to withstand extremely high pressures during operation. The injection orifice, located at the front of the injector, is where fuel is sprayed and atomized into fine particles. When high-pressure fuel is sprayed, it mixes with air to form a fine fuel mist, which helps to ensure thorough mixing of fuel and air, thereby improving combustion efficiency.

[0003] For example, Chinese utility model patent CN219344855U discloses a flow-guided fuel injector for a diesel engine, including a fuel injector housing. A partition is fixedly connected to the upper part of the inside of the fuel injector housing. Several oil inlet holes are evenly distributed around the center of the partition from the inside out. A servo motor is fixedly connected to the bottom of the fuel injector housing. A water pipe is fixedly connected to the drive end of the servo motor. The water pipe is rotatably connected inside the fuel injector housing and rotatably connected to the center of the partition. Several water spray holes are evenly distributed around the outer wall of the water pipe from top to bottom. Oil outlet holes are provided on all four sides of the bottom of the nozzle. The guide-type nozzle is driven by a servo motor to rotate the scraper and clean the inside of the nozzle housing to prevent impurities from accumulating inside. However, since the servo motor is installed near the oil outlet hole, and the diesel engine nozzle needs to spray fuel into the combustion chamber, the spray part of the nozzle is usually in the combustion chamber, and the temperature in the combustion chamber is usually very high. The normal operating temperature of the servo motor is generally low. High temperature will affect the performance of the motor or even cause failure, making the cleaning function of the guide-type nozzle unstable. Therefore, we propose a marine impurity removal diesel engine nozzle assembly. Summary of the Invention

[0004] I. Technical problems to be solved

[0005] This utility model addresses the aforementioned deficiencies in existing technologies by proposing a marine diesel engine injector assembly for impurity removal. By placing the impurity removal system at the fuel inlet, the power components are less susceptible to the effects of high combustion chamber temperatures. Furthermore, the anti-clogging mechanism ensures that the filter plate maintains a stable filtration effect, enabling the filter plate to continuously and efficiently filter impurities in the fuel and prevent impurities from entering the injector and fuel system. This solves the technical problem that high temperatures in the combustion chamber can affect motor performance or even cause malfunctions, leading to unstable cleaning functions in this flow-guided injector.

[0006] II. Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a marine diesel engine injector assembly for removing impurities, including an injector body, an injector nozzle on the injector body, an oil inlet on one side of the injector body, and an impurity removal system on the injector body to prevent larger particulate impurities from entering the injector assembly; and an anti-loosening mechanism between the impurity removal system and the injector body to prevent fuel leakage between the impurity removal system and the injector body.

[0008] Preferably, the impurity removal system includes a housing, a filter plate, and a sleeve; the housing is located outside the oil inlet, and an oil delivery pipe interface is provided on one side of the housing; the filter plate is located inside the housing; the sleeve is connected to the side of the housing away from the oil delivery pipe interface, and the sleeve is threadedly connected to the oil inlet.

[0009] Preferably, the impurity removal system also includes an anti-clogging mechanism; the anti-clogging mechanism is disposed on the filter plate and is used to prevent oil and deposits from adhering to the surface of the filter plate.

[0010] Preferably, the anti-clogging mechanism includes a cleaning component, a power component, and a transmission assembly; the cleaning component is rotatably mounted on the filter plate; the power component is mounted on the mounting cover; and the transmission assembly is mounted on the filter plate, which is used to transmit the rotational power of the power component to the cleaning component.

[0011] Preferably, the anti-clogging mechanism further includes a rotating component and a sealing component; the rotating component is disposed on the cleaning component and is used to drive the cleaning component to rotate on the surface of the filter plate; the sealing component is disposed between the rotating component and the mounting cover and is used to prevent fuel impurities from interfering with the rotation operation of the rotating component.

[0012] Preferably, the rotating assembly includes a toothed disc and a toothed ring; one end of the toothed disc is connected to the cleaning component; and the toothed ring is mated with the toothed disc.

[0013] Preferably, the sealing assembly includes a connecting ring plate and a connecting ring cover; the connecting ring plate is rotatably connected to the toothed disc; the connecting ring cover is fixedly connected to the mounting cover, and the connecting ring cover is rotatably connected to the connecting ring plate.

[0014] Preferably, the anti-loosening mechanism includes a cover, a block, a screw, and a support plate; the cover is connected to the sleeve; the block is mated to the cover; one end of the screw is connected to the block; the support plate is connected to the oil spraying body, and the support plate is threadedly connected to the screw.

[0015] III. Beneficial Effects

[0016] Compared with the prior art, this utility model sets the impurity removal system at the oil inlet, making the power component less susceptible to the high temperature of the combustion chamber, and the anti-clogging mechanism can keep the filter plate stable in filtering effect, so that the filter plate can continuously and efficiently filter impurities in the fuel, preventing impurities from entering the fuel injector and fuel system. This solves the technical problem that the high temperature in the combustion chamber can affect the performance of the motor or even cause failure, making the cleaning function of the guide-type fuel injector unstable.

[0017] Furthermore, an anti-loosening mechanism is used to prevent loosening between the sleeve and the oil inlet, avoiding loosening of the impurity removal system under high vibration conditions, ensuring the stability and safety of the oil circuit, preventing fuel leakage, and solving the technical problems of the impurity removal system loosening due to vibration, affecting the stability of the oil circuit and potentially causing fuel leakage. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the fuel injection body and nozzle and their connection structure of this utility model.

[0019] Figure 2 This is a three-dimensional schematic diagram of the mounting cover, filter plate, and their connection structure of this utility model.

[0020] Figure 3 This is a three-dimensional schematic diagram of the insert cover and insert block and their connection structure of this utility model.

[0021] Figure 4 This is a three-dimensional schematic diagram of the power component and transmission assembly and their connection structure of this utility model.

[0022] Figure 5 This is the utility model Figure 1 Enlarged diagram of point A in the middle.

[0023] Figure 6 This is the utility model Figure 2 Enlarged diagram of point B in the middle.

[0024] In the picture:

[0025] 1 is the main body for injecting oil; 11 is the nozzle; 12 is the oil inlet; 2 is the mounting cover; 21 is the filter plate; 22 is the sleeve; 23 is the cleaning component; 24 is the power component; 25 is the transmission assembly; 26 is the convex gear disc; 27 is the convex gear ring; 28 is the connecting ring plate; 29 is the connecting ring cover; 210 is the insert cover; 211 is the insert block; 212 is the screw; 213 is the support plate. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model. Example 1

[0027] See Figures 1-2 As shown, a marine diesel engine injector assembly for impurity removal includes an injector body 1 with an injector nozzle 11 and an inlet 12 on one side. The injector body 1 is equipped with an impurity removal system to prevent larger particulate impurities from entering the injector assembly. An anti-loosening mechanism is provided between the impurity removal system and the injector body 1 to prevent fuel leakage. The impurity removal system includes a housing hood 2, a filter plate 21, and a sleeve 22. The housing hood 2 is located outside the inlet 12, and an oil supply pipe interface is located on one side of the housing hood 2. The filter plate 21 is located inside the housing hood 2. The sleeve 22 is connected to the side of the housing hood 2 away from the oil supply pipe interface and is threadedly connected to the inlet 12. The impurity removal system also includes an anti-clogging mechanism. The anti-clogging mechanism is located on the filter plate 21 and is used to prevent oil and deposits from adhering to the surface of the filter plate 21.

[0028] Specifically, before the diesel engine injector assembly is put into use, the sleeve 22 is first screwed into the oil inlet 12, and the threaded connection between the sleeve 22 and the nozzle 11 is used to achieve a fixed connection. Then, the sleeve 22 is secondarily limited by the anti-loosening mechanism to ensure that the sleeve 22 is not easy to loosen after the threaded connection, thereby ensuring the stable installation of the mounting cover 2 and the injection body 1.

[0029] Next, connect the fuel supply pipe interface of the mounting cover 2 to the external fuel supply pipe, putting the fuel injection unit 1 into working condition. At this time, the filter plate 21 can intercept large particulate impurities, preventing impurities from entering the diesel engine fuel injector assembly and fuel system, thereby protecting the accuracy and working performance of the fuel injector assembly. At the same time, the anti-clogging mechanism can remove oil stains and deposits on the surface of the filter plate 21, maintaining the high-efficiency filtration performance of the filter plate 21, extending its service life, and the impurity removal system is located at the fuel inlet 12, making it less susceptible to the high temperature of the combustion chamber, ensuring the continuous and stable operation of the diesel engine fuel injector assembly.

[0030] See Figures 1-4 and Figure 6As shown, the anti-clogging mechanism includes a cleaning component 23, a power component 24, and a transmission assembly 25. The cleaning component 23 is rotatably mounted on the filter plate 21. The power component 24 is mounted on the mounting cover 2. The transmission assembly 25 is mounted on the filter plate 21 and is used to transmit the rotational power of the power component 24 to the cleaning component 23. The anti-clogging mechanism also includes a rotating assembly and a sealing assembly. The rotating assembly is mounted on the cleaning component 23 and is used to drive the cleaning component 23 to rotate on the surface of the filter plate 21. The sealing component is disposed between the rotating assembly and the mounting cover 2. The sealing component is used to prevent fuel impurities from interfering with the rotation operation of the rotating assembly. The rotating assembly includes a toothed disc 26 and a toothed ring 27. One end of the toothed disc 26 is connected to the cleaning component 23. The toothed ring 27 is mated with the toothed disc 26. The sealing component includes a connecting ring plate 28 and a connecting ring cover 29. The connecting ring plate 28 is rotatably connected to the toothed disc 26. The connecting ring cover 29 is fixedly connected to the mounting cover 2 and is rotatably connected to the connecting ring plate 28.

[0031] Specifically, the cleaning component 23 uses a brush that will not damage the filter plate 21 as the implementing element, and the cleaning component 23 maintains a pressing contact with the filter plate 21. The power component 24 uses an electric motor as the implementing element. The transmission assembly 25 consists of meshing bevel gears. The convex gear disc 26 and the convex gear ring 27 form a meshing transmission structure.

[0032] When the oil supply pipe interface of the mounting cover 2 is connected to the external oil supply pipe and the oil injection body 1 enters the working state, the power component 24 is started, causing the output end of the power component 24 to drive the bevel gear on one side of the transmission component 25 to rotate. Based on the bevel gear meshing transmission relationship of the transmission component 25, the power component 24 drives the cleaning component 23 to revolve along the surface of the filter plate 21 through the transmission component 25.

[0033] The cleaning component 23 is made of a brush material, and the brush will not damage the filter plate 21. During the squeezing and contact process with the filter plate 21, the cleaning component 23 can remove the impurities trapped by the filter plate 21. When the cleaning component 23 revolves, it drives the toothed disc 26 and the connecting ring cover 29 to rotate. The toothed disc 26 docks with the toothed ring 27, allowing the toothed disc 26 to rotate. The toothed disc 26 can also drive the cleaning component 23 to rotate on its own axis. The direction of the revolution of the cleaning component 23 is opposite to the direction of its own rotation. The bidirectional movement further enhances the cleaning effect, ensuring that the filter plate 21 can continuously and efficiently filter impurities in the fuel and prevent them from entering the fuel injector and fuel system.

[0034] Working principle: Before the diesel engine injector assembly is put into use, a fixed connection is achieved through the threaded connection structure between the sleeve 22 and the nozzle 11. Then, the screw 212 is rotated to align the insert 211 with the insert cover 210, preventing loosening between the sleeve 22 and the oil inlet 12. Next, the oil supply pipe interface of the mounting cover 2 is connected to the external oil supply pipe, putting the injector body 1 into working condition. At this time, the filter plate 21 can intercept large particulate impurities, preventing impurities from entering the diesel engine injector assembly and fuel system. The power unit 24 is activated, allowing the cleaning unit 23 to sweep away the impurities trapped by the filter plate 21, enabling the filter plate 21 to continuously and efficiently filter impurities in the fuel, preventing impurities from entering the injector and fuel system, and ensuring the continuous and stable operation of the diesel engine injector assembly. Example 2

[0035] See Figures 1-3 and Figure 5 As shown, the anti-loosening mechanism includes a cover 210, a block 211, a screw 212, and a support plate 213; the cover 210 is connected to the sleeve 22; the block 211 is connected to the cover 210; one end of the screw 212 is connected to the block 211; the support plate 213 is connected to the oil injection body 1, and the support plate 213 is threadedly connected to the screw 212.

[0036] Specifically, the inner cross-sectional dimensions of the insert cover 210 match the cross-sectional dimensions of the insert block 211. When a fixed connection is achieved using the threaded connection structure between the sleeve 22 and the nozzle 11, rotating the screw 212, which is threadedly connected to the support plate 213, allows the screw 212 to drive the insert block 211 upward along the support plate 213. At this time, the screw 212 can drive the insert block 211 to mate with the insert cover 210. Because the inner cross-sectional dimensions of the insert cover 210 match the cross-sectional dimensions of the insert block 211, the insert block 211 is less likely to shake or shift inside the insert cover 210. This prevents the insert block 211 from becoming loose between the sleeve 22 and the oil inlet 12, avoiding loosening of the impurity removal system under high vibration conditions, ensuring the stability and safety of the oil circuit, and preventing fuel leakage.

[0037] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A marine diesel engine fuel injector assembly for impurity removal, comprising a fuel injector body (1), a nozzle (11) provided on the fuel injector body (1), and a fuel inlet (12) provided on one side of the fuel injector body (1), characterized in that, The fuel injector body (1) is equipped with a cleaning system to prevent larger particulate impurities from entering the fuel injector assembly; An anti-loosening mechanism is provided between the impurity removal system and the fuel injection body (1) to prevent fuel leakage between the impurity removal system and the fuel injection body (1); The impurity removal system includes a housing (2), a filter plate (21), and a sleeve (22); The mounting cover (2) is located outside the oil inlet (12), and an oil delivery pipe interface is provided on one side of the mounting cover (2); The filter plate (21) is located inside the housing (2); The casing (22) is connected to the side of the housing (2) away from the oil pipe interface, and the casing (22) is threaded to the oil inlet (12).

2. The marine impurity removal diesel engine injector assembly according to claim 1, characterized in that, The impurity removal system also includes an anti-clogging mechanism; An anti-clogging mechanism is provided on the filter plate (21) to prevent oil and deposits from adhering to the surface of the filter plate (21).

3. The marine impurity removal diesel engine injector assembly according to claim 2, characterized in that, The anti-blocking mechanism includes a cleaning component (23), a power component (24), and a transmission assembly (25); The cleaning component (23) is rotatably mounted on the filter plate (21); The power component (24) is mounted on the mounting cover (2); The transmission assembly (25) is disposed on the filter plate (21) and is used to transmit the rotational power of the power component (24) to the cleaning component (23).

4. A marine diesel engine fuel injector assembly for impurity removal according to claim 2, characterized in that, The anti-blocking mechanism also includes a rotating component and a sealing component; The rotating component is mounted on the cleaning component (23) and is used to drive the cleaning component (23) to rotate on the surface of the filter plate (21); The sealing assembly is located between the rotating assembly and the mounting cover (2). The sealing assembly is used to prevent fuel impurities from interfering with the rotation operation of the rotating assembly.

5. A marine diesel engine fuel injector assembly for impurity removal according to claim 4, characterized in that, The rotating assembly includes a toothed disk (26) and a toothed ring (27); One end of the toothed disc (26) is connected to the cleaning component (23); The toothed ring (27) is mated with the toothed disc (26).

6. A marine diesel engine fuel injector assembly for impurity removal according to claim 4, characterized in that, The sealing assembly includes a connecting ring plate (28) and a connecting ring cover (29); The connecting ring cover (29) is fixedly connected to the mounting cover (2), and the connecting ring cover (29) is rotatably connected to the connecting ring plate (28).

7. A marine diesel engine fuel injector assembly for impurity removal according to claim 1, characterized in that, The anti-loosening mechanism includes a cover (210), a block (211), a screw (212), and a support plate (213). The insert (210) is connected to the sleeve (22); The insert (211) mates with the insert cover (210); One end of the screw (212) is connected to the insert (211); The support plate (213) is connected to the oil injection body (1), and the support plate (213) is threadedly connected to the screw (212).

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