Flywheel housing for engine

CN223939030UActive Publication Date: 2026-02-24CHANGZHOU QIANGXUN MACHINERY MANUFACTURING CO LTD
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Patent Information

Application Number
CN202520288843.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-02-24
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

[0003]现有发动机飞轮壳的密封方式往往较为简单,缺乏多层次的密封措施,容易导致油液泄漏,由于没有专门的密封结构和部件,仅依靠简单的接触面进行密封,这种方式在实际运行中容易出现磨损、变形等问题,从而影响密封效果,需要进行改进

Benefits of technology

[0013] 1. This utility model achieves effective sealing of the engine flywheel housing by setting a sealing sleeve, a first sealing gasket, a sealing groove, a sealing plug, a second sealing gasket, and a limiting groove. The sealing sleeve is slidably connected to the mounting block, the sealing plug is slidably connected to the outer shell, and the second sealing gasket is attached to the bottom of the side plate. These designs together ensure the reliability and stability of the seal. The limiting groove and the mounting groove correspond to each other, further improving the stability and sealing of the overall structure. This improved engine flywheel housing can effectively prevent oil leakage and improve the working efficiency and service life of the engine.

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Abstract

The utility model provides a flywheel casing for an engine, which relates to the technical field of flywheel casings and comprises a casing, a lug is mounted at the top end of the casing, a rotating groove is formed in the top end of the lug, a side plate is arranged on the surface of the casing, a mounting block is mounted at the top end of the side plate, a sealing sleeve is arranged in the mounting block, and a sealing ring is arranged in the sealing sleeve. A first sealing gasket is mounted at the top end of the sealing sleeve, a sealing groove is formed in the bottom end of the shell, a sealing plug is arranged in the sealing groove, effective sealing of the engine flywheel shell is achieved, the sealing sleeve is slidably connected with the mounting block, the sealing plug is slidably connected with the shell, and a second sealing gasket is attached to the bottom end of the side plate. Due to the design, the reliability and the stability of sealing are jointly ensured, the limiting grooves correspond to the mounting grooves, the stability and the sealing performance of the whole structure are further improved, the improved engine flywheel shell can effectively prevent oil leakage, the working efficiency of an engine is improved, and the service life of the engine is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of flywheel housing technology, and in particular to a flywheel housing for an engine. Background Technology

[0002] The engine flywheel housing is the most important part of the engine. Its function is to provide support for the installation of components such as the cylinder block and gearbox, and to support and protect moving parts such as the flywheel and clutch to ensure safe operation.

[0003] Existing engine flywheel housings often use relatively simple sealing methods, lacking multi-layered sealing measures, which can easily lead to oil leakage. Since there are no dedicated sealing structures and components, they rely solely on simple contact surfaces for sealing. This method is prone to wear and deformation during actual operation, thus affecting the sealing effect, and needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0005] The present invention adopts the following technical solution: a flywheel housing for an engine, comprising an outer shell, a protrusion mounted on the top of the outer shell, a rotating groove formed on the top of the protrusion, a side plate provided on the surface of the outer shell, an mounting block mounted on the top of the side plate, a sealing sleeve provided inside the mounting block, a first sealing gasket mounted on the top of the sealing sleeve, a sealing groove formed at the bottom of the outer shell, a sealing plug provided inside the sealing groove, a second sealing gasket mounted on the bottom of the sealing plug, and a limit groove formed at the bottom of the second sealing gasket.

[0006] As a preferred embodiment of this utility model for an engine flywheel housing, the surface of the mounting block is provided with a mounting groove, and the sealing sleeve is slidably connected to the mounting block through the mounting groove.

[0007] As a preferred embodiment of this utility model for an engine flywheel housing, the sealing plug is slidably connected to the outer shell through a sealing groove, and the second sealing gasket is attached to the bottom end of the side plate.

[0008] As a preferred embodiment of this utility model for an engine flywheel housing, the limiting groove and the mounting groove correspond to each other.

[0009] As a preferred embodiment of this utility model for an engine flywheel housing, wherein: a reinforcing block is installed at the top of the protrusion, an oil storage groove is provided inside the rotating groove, a washer is provided at the top of the protrusion, a retaining groove is provided inside the washer, and a guide groove is provided inside the washer.

[0010] As a preferred embodiment of this utility model for an engine flywheel housing, the reinforcing blocks are evenly distributed on the surface of the protrusions, and the washers are installed inside the rotating grooves via slots.

[0011] As a preferred embodiment of this utility model for an engine flywheel housing, wherein: the guide grooves are evenly distributed inside the gasket, and the guide grooves correspond to each other with the oil reservoir.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. This utility model achieves effective sealing of the engine flywheel housing by setting a sealing sleeve, a first sealing gasket, a sealing groove, a sealing plug, a second sealing gasket, and a limiting groove. The sealing sleeve is slidably connected to the mounting block, the sealing plug is slidably connected to the outer shell, and the second sealing gasket is attached to the bottom of the side plate. These designs together ensure the reliability and stability of the seal. The limiting groove and the mounting groove correspond to each other, further improving the stability and sealing of the overall structure. This improved engine flywheel housing can effectively prevent oil leakage and improve the working efficiency and service life of the engine.

[0014] 2. This utility model improves the sealing and durability of the engine flywheel housing by setting up a reinforcing block, an oil reservoir, a gasket, a slot, and a guide groove. The reinforcing block enhances the structural strength of the protrusion and effectively prevents deformation or damage caused by external forces. The oil reservoir can store lubricant in the groove, reduce friction and wear, and extend the service life of the components. The slot and guide groove design on the gasket ensures precise fit and stable connection between the gasket and related components. Attached Figure Description

[0015] Figure 1 A schematic diagram of an engine flywheel housing is provided for this utility model;

[0016] Figure 2 An exploded view of an engine flywheel housing is provided for this utility model;

[0017] Figure 3 This utility model provides an exploded bottom view for an engine flywheel housing;

[0018] Figure 4 This utility model proposes a method for engine flywheel housing. Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This utility model proposes a method for engine flywheel housing. Figure 2 Enlarged view of section B in the middle.

[0020] Legend:

[0021] 1. Outer shell; 2. Protrusion; 3. Rotary groove; 4. Side plate; 5. Mounting block; 6. Mounting groove; 7. Sealing sleeve; 8. No. 1 sealing gasket; 9. Sealing groove; 10. Sealing plug; 11. No. 2 sealing gasket; 12. Limiting groove; 13. Reinforcing block; 14. Oil reservoir; 15. Washer; 16. Slot; 17. Guide groove. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1

[0025] Please see Figure 1-4This utility model provides a technical solution: a flywheel housing for an engine, including an outer shell 1, a protrusion 2 mounted on the top of the outer shell 1, a rotating groove 3 formed on the top of the protrusion 2, a side plate 4 provided on the surface of the outer shell 1, an mounting block 5 mounted on the top of the side plate 4, a sealing sleeve 7 provided inside the mounting block 5, a first sealing gasket 8 mounted on the top of the sealing sleeve 7, a sealing groove 9 formed at the bottom of the outer shell 1, a sealing plug 10 provided inside the sealing groove 9, a second sealing gasket 11 mounted on the bottom of the sealing plug 10, and a limiting groove 12 formed at the bottom of the second sealing gasket 11. By setting the sealing sleeve 7, the first sealing gasket 8, the sealing groove 9, the sealing plug 10, the second sealing gasket 11, and the limiting groove 12, effective sealing of the engine flywheel housing is achieved. The sealing sleeve 7 is slidably connected to the mounting block 5, the sealing plug 10 is slidably connected to the outer shell 1, and the second sealing gasket 11 is attached to the bottom of the side plate 4. These designs together ensure the reliability and stability of the seal. The limiting groove 12 corresponds to the mounting groove 6, further improving the overall structure. The improved engine flywheel housing enhances structural stability and sealing, effectively preventing oil leakage and improving engine efficiency and service life. The mounting block 5 has a mounting groove 6 on its surface, through which the sealing sleeve 7 slides, improving installation convenience and enhancing the overall sealing performance. As the sealing sleeve 7 slides in the mounting groove 6, it better adapts to small gaps between different components, ensuring consistent and reliable sealing. The sealing plug 10 slides through the sealing groove 9, and the second sealing gasket 11 adheres to the bottom of the side plate 4, improving the reliability and durability of the sealing system. This design allows the sealing plug 10 to flexibly adjust its position within the sealing groove 9 of the housing 1 to adapt to different installation requirements and changing working environments, effectively preventing oil leakage. The limiting groove 12 corresponds to the mounting groove 6, ensuring that the sealing sleeve 7 is accurately aligned and fixed in the predetermined position during installation, avoiding poor sealing or component damage due to installation errors.

[0026] Example 2

[0027] Please see Figure 1-3 and Figure 5A reinforcing block 13 is installed at the top of the protrusion 2. An oil reservoir 14 is provided inside the rotating groove 3. A washer 15 is provided at the top of the protrusion 2. A retaining groove 16 and a guide groove 17 are provided inside the washer 15, which improves the sealing and durability of the engine flywheel housing. The reinforcing block 13 enhances the structural strength of the protrusion 2, effectively preventing deformation or damage caused by external forces. The oil reservoir 14 can store lubricant in the rotating groove 3, reducing friction and wear and extending the service life of the components. The retaining groove 16 and guide groove 17 on the washer 15 ensure precise fit and stable connection between the washer 15 and related components. Block 13 is evenly distributed on the surface of protrusion 2. Washer 15 is installed inside the rotating groove 3 through slot 16, which improves the structural strength and sealing performance of the engine flywheel housing. The even distribution of reinforcing block 13 enhances the load-bearing capacity of protrusion 2, effectively resists external impact and vibration, and prevents structural deformation or damage. Guide groove 17 is evenly distributed inside washer 15. Guide groove 17 corresponds to oil reservoir 14, which improves the lubrication efficiency and sealing performance of engine flywheel housing. The design of guide groove 17 allows lubricating oil to flow smoothly from oil reservoir 14 to the parts that need lubrication, reducing friction and wear and extending the service life of components.

[0028] Working principle: In use, first align the sealing plug 10 with the sealing groove 9 and press upwards, allowing the sealing plug 10 to slide upwards through the sealing groove 9 at the bottom of the outer shell 1. Once the sealing plug 10 has completely slid into the interior of the outer shell 1 through the sealing groove 9, the second sealing gasket 11 is attached to the bottom of the side plate 4, and the limiting groove 12 aligns with the mounting groove 6. Then, pinch the first sealing gasket 8, align the sealing sleeve 7 with the mounting groove 6, and press downwards, allowing the sealing sleeve 7 to slide downwards through the mounting groove 6 at the top of the mounting block 5. Once the sealing sleeve 7 has completely slid into the mounting block 5 through the mounting groove 6... Inside, after the No. 1 sealing gasket 8 is attached to the top of the mounting block 5, the outer shell 1 and the protrusion 2 are placed in the required positions and secured firmly through the mounting groove 6. During use, the even distribution of the reinforcing blocks 13 on the top of the protrusion 2 enhances the overall structure's load-bearing capacity and resistance to deformation. Furthermore, the oil reservoir 14 within the rotating groove 3 not only stores the necessary lubricant but also smoothly guides the lubricating oil to the parts requiring lubrication through the guide groove 17 inside the gasket 15. This process significantly improves the lubrication efficiency of moving parts and reduces friction and wear. Finally, the gasket 15 is installed inside the rotating groove 3 through the retaining groove 16, ensuring precise fit and stable connection with related components. This series of steps together constitutes a compact and efficient engine flywheel housing system designed to minimize oil leakage and provide reliable mechanical protection.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A flywheel housing for an engine, comprising an outer shell (1), characterized in that: The top of the outer shell (1) is provided with a protrusion (2), and the top of the protrusion (2) is provided with a rotating groove (3). The surface of the outer shell (1) is provided with a side plate (4), and the top of the side plate (4) is provided with an mounting block (5). The inside of the mounting block (5) is provided with a sealing sleeve (7), and the top of the sealing sleeve (7) is provided with a first sealing gasket (8). The bottom of the outer shell (1) is provided with a sealing groove (9), and the inside of the sealing groove (9) is provided with a sealing plug (10). The bottom of the sealing plug (10) is provided with a second sealing gasket (11), and the bottom of the second sealing gasket (11) is provided with a limiting groove (12).

2. The flywheel housing for an engine according to claim 1, characterized in that: The surface of the mounting block (5) is provided with a mounting groove (6), and the sealing sleeve (7) is slidably connected to the mounting block (5) through the mounting groove (6).

3. The flywheel housing for an engine according to claim 1, characterized in that: The sealing plug (10) is slidably connected to the outer shell (1) through the sealing groove (9), and the second sealing gasket (11) is attached to the bottom end of the side plate (4).

4. The flywheel housing for an engine according to claim 2, characterized in that: The limiting groove (12) corresponds to the mounting groove (6).

5. The flywheel housing for an engine according to claim 1, characterized in that: A reinforcing block (13) is installed at the top of the protrusion (2). An oil storage tank (14) is provided inside the rotating groove (3). A washer (15) is provided at the top of the protrusion (2). A slot (16) is provided inside the washer (15). A guide groove (17) is provided inside the washer (15). The guide groove (17) is evenly distributed inside the washer (15). The guide groove (17) corresponds to the oil storage tank (14).

6. The flywheel housing for an engine according to claim 5, characterized in that: The reinforcing blocks (13) are evenly distributed on the surface of the protrusions (2), and the washers (15) are installed inside the rotating grooves (3) through the slots (16).