Cylinder sleeve assembly of ship internal combustion engine

By designing a cylinder liner assembly of a marine internal combustion engine that includes a bottom ring, a fixed sleeve and a heat dissipation component, the problem of poor heat dissipation effect of traditional cylinder liners is solved, achieving more efficient heat dissipation and longer equipment service life.

CN222962957UActive Publication Date: 2025-06-10JIANGSU HUNTER PRECISION MFG CO LTD
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Patent Information

Application Number
CN202421473588.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-26
Publication Date
2025-06-10
Estimated Expiration
2034-06-26

AI Technical Summary

Technical Problem

The cylinder liner of the traditional marine internal combustion engine adopts an integrated structure, which has poor heat dissipation effect and affects the normal operation of the equipment.

Method used

A cylinder liner assembly of a marine internal combustion engine is designed, including a bottom ring, a fixed sleeve and a heat dissipation assembly. The heat dissipation assembly includes a heat dissipation ring and a heat dissipation fin. The air-conditioning or coolant circulates through the input tube and the output tube to achieve stable heat dissipation.

Benefits of technology

Through improved heat dissipation design, the heat dissipation efficiency of the cylinder liner is improved, the service life of the equipment is extended, and the assembly and maintenance process is simplified.

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Abstract

The utility model relates to the technical field of ship internal combustion engines, in particular to a ship internal combustion engine cylinder sleeve assembly which comprises a cylinder sleeve body, the cylinder sleeve body comprises a bottom ring, a fixing sleeve and a heat dissipation assembly, the fixing sleeve and the heat dissipation assembly are arranged on the bottom ring, and the heat dissipation assembly comprises a heat dissipation ring and heat dissipation fins. The inner diameter of the inner wall of the bottom ring is matched with the inner diameter of the heat dissipation ring, a plurality of sets of heat dissipation fins are arranged on the outer side of the heat dissipation ring, an annular opening is formed in the side, close to the heat dissipation ring, of the fixing sleeve, and the lower portion of the inner top wall of the fixing sleeve is connected with the heat dissipation ring. The bottom ring provides stable support for the fixing sleeve and the heat dissipation ring, according to requirements, the bottom ring and the heat dissipation ring can be integrally formed, heat dissipation fins with through holes are further arranged on the outer side of the heat dissipation ring, the fixing sleeve covers the heat dissipation fins, circulation of cold air or cooling liquid is conducted through the input pipe and the output pipe, stable heat dissipation is conducted, use is convenient, and the heat dissipation effect is good. The service life of equipment is ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of marine internal combustion engines, and particularly to a cylinder liner assembly for a marine internal combustion engine. Background Art

[0002] A gas turbine ship, also known as an internal combustion engine ship, refers to a ship powered by an internal combustion engine. The cylinder liner of a marine internal combustion engine is a component that plays roles such as sealing the cylinder, guiding the movement of the piston, and dissipating heat. Traditional cylinder liners adopt an integral structure, with poor heat dissipation effect, which easily affects the normal operation of the equipment. Summary of the Utility Model

[0003] (I) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a cylinder liner assembly for a marine internal combustion engine.

[0005] (II) Technical Solutions

[0006] To achieve the above object, the utility model provides the following technical solutions: A cylinder liner assembly for a marine internal combustion engine, including a cylinder liner body. The cylinder liner body includes a bottom ring, a fixed sleeve, and a heat dissipation component. The fixed sleeve and the heat dissipation component are arranged on the bottom ring. The heat dissipation component includes a heat dissipation ring and heat dissipation fins. The inner diameter of the inner wall of the bottom ring is adapted to the inner diameter of the heat dissipation ring. A plurality of groups of heat dissipation fins are arranged on the outer side of the heat dissipation ring. An annular opening is arranged on the side of the fixed sleeve close to the heat dissipation ring. The lower part of the inner top wall of the fixed sleeve is connected to the heat dissipation ring. One end of the fixed sleeve away from the heat dissipation ring covers the heat dissipation fins.

[0007] To facilitate heat dissipation, the utility model is improved in that a plurality of groups of through holes are arranged on the heat dissipation fins.

[0008] To conduct stable ventilation or add a cold circulation medium to ensure the stability of heat circulation, the utility model is improved in that an input pipe is arranged at one end of the fixed sleeve, and an output pipe is arranged at the other end of the fixed sleeve.

[0009] To facilitate the assembly of the fixed sleeve, the utility model is improved in that a receiving ring for receiving the bottom wall of the fixed sleeve is arranged on the bottom ring. A bolt penetrates through the bottom ring and the receiving ring and is connected to a screw groove on the bottom wall of the fixed sleeve.

[0010] Preferably, a plurality of groups of bolts are arranged evenly.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, the utility model provides a cylinder liner assembly for a marine internal combustion engine, and has the following beneficial effects:

[0013] For the cylinder liner assembly of the marine internal combustion engine, the bottom ring provides stable support for the fixed sleeve and the heat dissipation ring. According to requirements, the bottom ring and the heat dissipation ring can be integrally formed. The outer side of the heat dissipation ring is also provided with heat dissipation fins with through holes. The fixed sleeve covers the heat dissipation fins, and cold air or coolant circulates through the input pipe and the output pipe for stable heat dissipation, which is convenient to use and ensures the service life of the equipment. Brief Description of the Drawings

[0014] Figure 1 It is a front view schematic diagram of the structure of the present utility model;

[0015] Figure 2 It is a partial exploded schematic diagram of the structure of the present utility model;

[0016] Figure 3 It is a partial schematic diagram of the structure of the present utility model;

[0017] Figure 4 It is a schematic diagram of another embodiment of the structure of the present utility model.

[0018] In the figure: 1, bottom ring; 2, fixed sleeve; 3, heat dissipation ring; 4, heat dissipation fins; 5, through hole; 6, input pipe; 7, output pipe; 8, receiving ring; 9, bolt. Detailed Embodiment

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4 , the cylinder liner assembly of the marine internal combustion engine, including the cylinder liner body. The cylinder liner body includes a bottom ring 1, a fixed sleeve 2 and a heat dissipation component. The fixed sleeve 2 and the heat dissipation component are arranged on the bottom ring 1. The heat dissipation component includes a heat dissipation ring 3 and heat dissipation fins 4. The inner diameter of the inner wall of the bottom ring 1 is adapted to the inner diameter of the heat dissipation ring 3. A plurality of groups of heat dissipation fins 4 are arranged on the outer side of the heat dissipation ring 3. An annular opening is arranged on one side of the fixed sleeve 2 close to the heat dissipation ring 3. The lower part of the inner top wall of the fixed sleeve 2 is connected to the heat dissipation ring 3. One end of the fixed sleeve 2 away from the heat dissipation ring 3 covers the heat dissipation fins 4.

[0021] During actual use, the bottom ring 1 and the heat dissipation ring 3 are formed together. The heat dissipation ring 3 absorbs heat and is evenly distributed through the heat dissipation fins 4. The bottom ring 1 is also provided with a fixed sleeve 2 for covering the heat dissipation fins 4 to provide good protection for the heat dissipation fins 4 and ensure the heat dissipation efficiency of the equipment.

[0022] During actual use, in order to ensure the circulation of heat in the cavity enclosed by the fixed sleeve 2, the bottom ring 1 and the heat dissipation ring 3, a number of groups of through holes 5 are provided on the heat dissipation fins 4.

[0023] During actual use, an input pipe 6 is provided at one end of the fixed sleeve 2, and an output pipe 7 is provided at the other end of the fixed sleeve 2. Through the input pipe 6, a liquid supply device for supplying gas or coolant can be externally connected, and then exhaust gas and liquid return can be conveniently carried out through the output pipe 7. The input pipe 6 and the output pipe 7 are not limited to being directly connected to the fixed sleeve 2, and they can penetrate through the bottom ring 1 and communicate with the above-mentioned cavity to facilitate heat dissipation circulation.

[0024] In this embodiment, a receiving ring 8 for receiving the bottom wall of the fixed sleeve 2 is provided on the bottom ring 1. The bolt 9 penetrates through the bottom ring 1 and the receiving ring 8 and is connected to the screw groove on the bottom wall of the fixed sleeve 2. The bolts 9 are arranged in several groups evenly, so that the fixed sleeve 2 can be disassembled according to requirements to clean the heat dissipation fins 4.

[0025] To illustrate in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of the present application, the following will be described in detail with reference to the specific examples listed and in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, so they are only examples and cannot be used to limit the protection scope of the present application.

[0026] As used herein, the term "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0027] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which the present application belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit the present application.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ship internal combustion engine cylinder liner assembly, including a cylinder liner body, characterized in that: The cylinder sleeve body comprises a bottom ring (1), a fixed sleeve (2) and a heat dissipation component. The fixed sleeve (2) and the heat dissipation component are arranged on the bottom ring (1). The heat dissipation component comprises a heat dissipation ring (3) and heat dissipation fins (4). The inner diameter of the inner wall of the bottom ring (1) is matched with the inner diameter of the heat dissipation ring (3). A plurality of groups of heat dissipation fins (4) are arranged on the outer side of the heat dissipation ring (3). A circular opening is arranged on the side of the fixed sleeve (2) close to the heat dissipation ring (3). The lower part of the inner top wall of the fixed sleeve (2) is connected to the heat dissipation ring (3). The end of the fixed sleeve (2) away from the heat dissipation ring (3) covers the heat dissipation fins (4).

2. The ship internal combustion engine cylinder liner assembly according to claim 1, characterized in that: The heat dissipation fins (4) are provided with a plurality of groups of through holes (5).

3. The ship internal combustion engine cylinder liner assembly according to claim 2, characterized in that: An input pipe (6) is arranged on one end of the fixing sleeve (2), and an output pipe (7) is arranged on the other end of the fixing sleeve (2).

4. The ship internal combustion engine cylinder liner assembly according to claim 3, characterized in that: The bottom ring (1) is provided with a receiving ring (8) for receiving the bottom wall of the fixing sleeve (2); a bolt (9) passes through the bottom ring (1) and the receiving ring (8) and is connected to a screw groove on the bottom wall of the fixing sleeve (2).

5. The ship internal combustion engine cylinder liner assembly according to claim 4, characterized in that: The bolts (9) are arranged in a plurality of groups and are evenly spaced.