High-frequency porous internal combustion engine air inlet silencer for ship

By designing a high-frequency porous internal combustion engine intake silencer for ships and adopting a porous structure and filter element assembly, the problems of internal combustion engine exhaust noise and impurities are solved, effective noise reduction and filtering functions are achieved, and filter element replacement is facilitated.

CN223482788UActive Publication Date: 2025-10-28JIANGSU YEAN IND ENVIRONMENTAL PROTECTION EQUIP TECH
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Patent Information

Application Number
CN202422399323.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-10-28
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

The noise and heat energy generated by the exhaust of ship internal combustion engines are relatively large. Existing mufflers are difficult to effectively reduce noise and fail to filter impurities at the same time.

Method used

A high-frequency porous internal combustion engine intake silencer for ships is designed. Through the coordinated arrangement of a silencer cover, an air intake pipe, an air outlet pipe, a silencer assembly, a circular silencer plate, an X-shaped silencer plate, a wavy silencer plate, a fixing rod, a bearing plate, a filter element, a limit shell, a clamping block, a connecting pipe and a cross fixing frame, multiple noise reduction and filtration of the gas are achieved.

Benefits of technology

It achieves effective noise reduction of internal combustion engine exhaust, and filters impurities in the gas while reducing noise, ensuring that the exhaust gas does not pollute the air and facilitating the replacement of the filter element.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-frequency porous internal combustion engine intake silencer for a ship, and relates to the technical field of marine silencers. The silencer comprises a silencing cover, the bottom of the silencing cover is communicated with an air inlet pipe, the top of the silencing cover is communicated with an air outlet pipe, an inner cavity of the silencing cover is fixedly connected with a silencing assembly, the silencing assembly comprises a circular silencing plate, an X-shaped silencing plate and a wave-shaped silencing plate, the bottom of the circular silencing plate is communicated with a silencing air inlet, and the bottom of the X-shaped silencing plate is communicated with a silencing air outlet. The silencing assembly comprises a circular silencing plate, an X-shaped silencing plate and a wave-shaped silencing plate. Gas exhausted by an internal combustion engine enters the inner cavity of the silencing cover through the gas inlet pipe and then passes through the silencing assembly, so that noise is reduced, the noise reduction function is achieved, the gas obtained after noise reduction is filtered through the filter element and then exhausted through the gas outlet pipe and the connecting pipe, and the gas filtering function is achieved; a limiting shell and a clamping block are arranged, so that the filter element can be conveniently taken out for replacement.
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Description

Technical Field

[0001] This utility model belongs to the technical field of marine mufflers, and in particular relates to a high-frequency multi-hole internal combustion engine intake muffler for ships. Background Technology

[0002] Marine silencers are auxiliary equipment for the exhaust pipes of internal combustion engines, main engines, fuel-fired boilers, and fire-fighting diesel engines in ships. Their function is to eliminate the noise of exhaust during equipment operation and to extinguish any sparks remaining in the exhaust pipes.

[0003] When an internal combustion engine is working, it exhausts gas, which carries a high amount of heat energy and is exhausted at a high speed, generating significant noise. Therefore, a muffler is needed to reduce the noise generated by the exhaust gas from the internal combustion engine.

[0004] To address these issues, we offer a high-frequency multi-hole intake muffler for marine internal combustion engines. Utility Model Content

[0005] The purpose of this utility model is to provide a high-frequency multi-hole internal combustion engine intake muffler for ships. Through the coordinated arrangement of a muffler cover, intake pipe, exhaust pipe, muffler assembly, circular muffler plate, muffler intake port, X-shaped muffler plate, wave-shaped muffler plate, fixing rod, bearing plate, filter element, limiting shell, clamping block, connecting pipe and cross fixing bracket, it achieves the purpose of effectively reducing the noise of the exhaust gas of the ship's internal combustion engine. Moreover, while reducing the noise of the gas, it also has the function of filtering impurities in the gas.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a high-frequency multi-hole internal combustion engine intake muffler for ships, including a muffler cover, an intake pipe connected to the bottom of the muffler cover, an exhaust pipe connected to the top of the muffler cover, and a muffler assembly fixedly connected to the inner cavity of the muffler cover.

[0008] The noise reduction assembly includes a circular noise reduction plate, an X-shaped noise reduction plate, and a wave-shaped noise reduction plate, with a noise reduction air inlet connected to the bottom of the circular noise reduction plate.

[0009] The present invention is further configured such that the side of the circular silencing plate near the inner wall of the silencing cover is fixedly connected to the inner wall of the silencing cover, and the inner diameter of the silencing air inlet is larger at the top and smaller at the bottom.

[0010] The present invention is further configured such that the side of the X-shaped silencing plate near the inner wall of the silencing cover is fixedly connected to the inner wall of the silencing cover, and the side of the wave-shaped silencing plate near the inner wall of the silencing cover is fixedly connected to the inner wall of the silencing cover.

[0011] The present invention is further configured such that four fixing rods are fixedly connected to the top of the inner cavity of the silencer, a bearing plate is fixedly connected between the bottoms of the four fixing rods, and four limiting shells are fixedly connected to the top of the surface of the air outlet pipe.

[0012] The present invention is further configured such that a filter element is movably connected to the top of the bearing plate, a locking block is engaged in the inner cavity of the limiting shell, and a connecting pipe is fixedly connected between the four locking blocks on opposite sides.

[0013] The present invention is further configured such that a cross-shaped fixing bracket is fixedly connected to the inner cavity of the connecting tube, and the bottom of the cross-shaped fixing bracket is movably connected to the filter element.

[0014] This utility model has the following beneficial effects:

[0015] This invention utilizes the exhaust gas from an internal combustion engine, which enters the inner cavity of the muffler through the intake pipe. The gas then passes through the muffler assembly, thereby reducing noise generation and achieving noise reduction. After noise reduction, the gas is filtered by the filter element and discharged through the exhaust pipe and connecting pipe, thus achieving the gas filtration function. The limiting shell and locking block are designed to facilitate the removal and replacement of the filter element.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A three-dimensional structural diagram of a high-frequency multi-hole internal combustion engine intake muffler for ships;

[0019] Figure 2 A schematic diagram of the internal structure of the muffler cover for a high-frequency porous internal combustion engine intake muffler used in ships.

[0020] Figure 3 A partial structural diagram of the intake muffler for a high-frequency multi-hole internal combustion engine used in ships;

[0021] Figure 4 A bottom view of a partial structure of a high-frequency multi-hole internal combustion engine intake muffler for ships;

[0022] Figure 5 This is a schematic diagram of the muffler assembly structure of a high-frequency porous internal combustion engine intake muffler for ships.

[0023] In the attached diagram: 1. Silencer; 2. Air inlet pipe; 3. Air outlet pipe; 4. Silencer assembly; 401. Circular silencer plate; 402. Silencer air inlet; 403. X-shaped silencer plate; 404. Corrugated silencer plate; 5. Fixing rod; 6. Support plate; 7. Filter element; 8. Limiting shell; 9. Locking block; 10. Connecting pipe; 11. Cross fixing bracket. Detailed Implementation

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific Implementation Example 1

[0026] Please see Figure 1-5 This utility model is a high-frequency multi-hole internal combustion engine intake muffler for ships, including a muffler 1, an intake pipe 2 connected to the bottom of the muffler 1, an exhaust pipe 3 connected to the top of the muffler 1, and a muffler assembly 4 fixedly connected to the inner cavity of the muffler 1. The muffler assembly 4 includes a circular muffler plate 401, an X-shaped muffler plate 403, and a wave-shaped muffler plate 404. The side of the circular muffler plate 401 near the inner wall of the muffler 1 is fixedly connected to the inner wall of the muffler 1. The inner diameter of the muffler intake port 402 is larger at the top and smaller at the bottom. The side of the X-shaped muffler plate 403 near the inner wall of the muffler 1 is fixedly connected to the inner wall of the muffler 1. The side of the wave-shaped muffler plate 404 near the inner wall of the muffler 1 is fixedly connected to the inner wall of the muffler 1. The bottom of the circular muffler plate 401 is connected to the muffler intake port 402.

[0027] Specifically: the gas discharged from the internal combustion engine enters the inner cavity of the muffler 1 through the intake pipe 2. Then the gas undergoes the first noise reduction through the muffler intake 402 on the circular muffler 401. After noise reduction, the gas passes through the X-shaped muffler 403 and the wave-shaped muffler 404 for further noise reduction, thus achieving a triple noise reduction function for the gas. Specific Implementation Example 2

[0029] Please see Figure 1-5 Based on the first specific embodiment, four fixing rods 5 are fixedly connected to the top of the inner cavity of the silencer 1, and a bearing plate 6 is fixedly connected between the bottom of the four fixing rods 5. Four limiting shells 8 are fixedly connected to the top of the surface of the air outlet pipe 3. A filter element 7 is movably connected to the top of the bearing plate 6. A locking block 9 is snapped into the inner cavity of the limiting shell 8. A connecting pipe 10 is fixedly connected between the opposite sides of the four locking blocks 9. A cross fixing bracket 11 is fixedly connected to the inner cavity of the connecting pipe 10. The bottom of the cross fixing bracket 11 is movably connected to the filter element 7.

[0030] Specifically: The fixed rod 5 and the bearing plate 6 are used to support and limit the filter element 7. After triple noise reduction, the gas enters the filter element 7 for filtration, thereby removing larger particles in the gas and preventing the gas discharged through the outlet pipe 3 and the connecting pipe 10 from causing excessive air pollution. The limiting shell 8 and the locking block 9 are used to fix the connecting pipe 10. When the user needs to remove the filter element 7, the bolts on the limiting shell 8 can be removed to facilitate the removal and replacement of the filter element 7. The cross fixing bracket 11 is used to limit the filter element 7.

[0031] The working principle of this utility model is as follows: the gas discharged from the internal combustion engine enters the inner cavity of the muffler 1 through the intake pipe 2. Then, the gas undergoes the first noise reduction through the muffler intake port 402 on the circular muffler plate 401. After noise reduction, the gas passes through the X-shaped muffler plate 403 and the wave-shaped muffler plate 404 for further noise reduction. The gas after triple noise reduction enters the filter element 7 for filtration, thereby removing larger particles in the gas. This ensures that the gas discharged through the exhaust pipe 3 and the connecting pipe 10 will not cause excessive air pollution. The limiting shell 8 and the locking block 9 are designed to fix the connecting pipe 10. When the user needs to remove the filter element 7, the bolts on the limiting shell 8 can be removed to facilitate the removal and replacement of the filter element 7.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-frequency multi-hole internal combustion engine intake muffler for ships, comprising a muffler cover (1), characterized in that: The bottom of the silencer (1) is connected to an air inlet pipe (2), the top of the silencer (1) is connected to an air outlet pipe (3), and the inner cavity of the silencer (1) is fixedly connected to a silencer assembly (4). The noise reduction assembly (4) includes a circular noise reduction plate (401), an X-shaped noise reduction plate (403), and a wave-shaped noise reduction plate (404). The bottom of the circular noise reduction plate (401) is connected to a noise reduction air inlet (402).

2. The high-frequency multi-hole internal combustion engine intake muffler for ships according to claim 1, characterized in that, The circular silencer plate (401) is fixedly connected to the inner wall of the silencer cover (1) on the side closest to the inner wall of the silencer cover (1), and the inner diameter of the silencer air inlet (402) is larger at the top and smaller at the bottom.

3. The high-frequency multi-hole internal combustion engine intake muffler for ships according to claim 1, characterized in that, The X-shaped silencing plate (403) is fixedly connected to the inner wall of the silencing cover (1) on the side closest to the inner wall of the silencing cover (1), and the wave-shaped silencing plate (404) is fixedly connected to the inner wall of the silencing cover (1) on the side closest to the inner wall of the silencing cover (1).

4. The high-frequency multi-hole internal combustion engine intake muffler for ships according to claim 1, characterized in that, The top of the inner cavity of the silencer (1) is fixedly connected with four fixing rods (5), and the bottom of the four fixing rods (5) is fixedly connected with a bearing plate (6). The top of the surface of the air outlet pipe (3) is fixedly connected with four limiting shells (8).

5. The high-frequency multi-hole internal combustion engine intake muffler for ships according to claim 4, characterized in that, The top of the bearing plate (6) is movably connected to a filter element (7), and the inner cavity of the limiting shell (8) is fitted with a locking block (9). A connecting pipe (10) is fixedly connected between the opposite sides of the four locking blocks (9).

6. The high-frequency multi-hole intake muffler for marine internal combustion engines according to claim 5, characterized in that, The inner cavity of the connecting tube (10) is fixedly connected to a cross-shaped fixing bracket (11), and the bottom of the cross-shaped fixing bracket (11) is movably connected to the filter element (7).