Energy-saving turbine sealing structure
By designing a combined structure of a fixed ring, mounting ring, sliding groove, locking block, limiting block, and spring, the problem of difficulty in disassembling and assembling the sealing ring after wear is solved, enabling rapid replacement of the sealing ring and improving the sealing effect, while also achieving energy-saving and environmentally friendly results.
Patent Information
- Application Number
- CN202520217157.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing sealing rings are prone to wear after a period of use, and are difficult to disassemble and replace, leading to increased operating costs and reduced practicality of the device.
It adopts a disassembly and assembly structure including a fixing ring, mounting ring, slide groove, locking block, limiting block and spring. Combined with the design of elastic components and sealing ring, the cooperation of slide groove and spring enables quick disassembly and assembly of sealing ring and improves sealing effect.
It enables quick disassembly and assembly of the sealing ring, facilitating replacement, reducing operating costs, improving work efficiency, and enhancing sealing performance, while also being energy-saving and environmentally friendly.
Smart Images

Figure CN223839200U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of turbine seals, and more specifically, to an energy-saving turbine seal structure. Background Technology
[0002] A turbocharger is essentially an air compressor that increases the intake air volume by compressing air. It utilizes the inertial force of the exhaust gases from the engine to drive a turbine within the turbine housing. The turbine, in turn, drives a coaxial impeller, which compresses the air supplied through the air filter and forces it into the cylinders. As engine speed increases, the exhaust gas velocity and turbine speed also increase simultaneously. The impeller then compresses more air into the cylinders. The increased air pressure and density allow for the combustion of more fuel. By increasing the fuel quantity and adjusting the engine speed, the engine's output power can be increased.
[0003] The turbine seal of a turbocharger primarily employs a sealing ring structure. This sealing ring is responsible for preventing lubricating oil leakage and preventing high-pressure gases from the surrounding environment (such as combustion gas at the turbine end or air at the compressor end) from entering the intermediate body, thus serving a dual function of sealing both gas and oil. In turbocharger design, sealing devices are installed at both the turbine and compressor ends. These sealing rings are typically installed in corresponding sealing ring support grooves, relying on their elasticity to tighten against the outer body of the sealing support. During shaft operation, the sealing ring itself does not rotate; instead, it maintains the sealing state through its elasticity and structural characteristics.
[0004] Currently, sealing rings generally use slits for sealing. However, due to the presence of axial slits, the sealing effect of this type of sealing ring is poor, and oil leakage often occurs at the sealing structure.
[0005] Chinese patent application CN202023231671.9 discloses a non-cut sealing ring comprising a sealing ring body, the sealing ring body including a spiral sealing strip, one end of the sealing strip having a first sealing end, and the other end having a second sealing end. The length of the first sealing end in the axial direction of the sealing ring body decreases sequentially along the spiral direction of the sealing strip, such that the end face of one axial end of the sealing ring body is planar. The length of the second sealing end in the axial direction of the sealing ring body increases sequentially along the spiral direction of the sealing strip, such that the end face of the other axial end of the sealing ring body is planar. This non-cut sealing ring of the present invention has no axial cut, and compared with the prior art, it has superior sealing performance, thereby suppressing the leakage of lubricating fluid from the intermediate body of the turbocharger to the impeller end.
[0006] The above solution also has the following shortcomings: the sealing strip is prone to wear after a period of use and is not easy to disassemble and replace, which increases the cost of use and reduces the practicality of the device. Utility Model Content
[0007] To overcome the above shortcomings, this application provides an energy-saving turbine sealing structure, which aims to improve the problem that the sealing strip is prone to wear and tear after a period of use, making it difficult to disassemble and replace, thereby increasing the cost of use and reducing the practicality of the device.
[0008] This application provides an energy-saving turbine sealing structure, including a disassembly and assembly structure and a sealing structure. The disassembly and assembly structure includes a fixed ring, an mounting ring, a first sliding groove, a second sliding groove, two locking blocks, a limiting block, and a first spring. The mounting ring has two locking blocks arranged opposite to each other on its outer ring. The locking blocks are slidably connected to the first sliding groove and the second sliding groove, respectively. The locking blocks are in contact with the limiting block, and the limiting block is slidably connected to the fixed ring. The two ends of the first spring are connected to the limiting block and the fixed ring, respectively. The sealing structure includes an elastic component, an elastic ring, and a sealing ring. The elastic component is disposed inside the mounting ring, and the elastic ring is connected to the elastic component. The sealing ring is disposed inside the elastic ring.
[0009] In one specific implementation, the elastic component includes a support column, a sliding column, and a second spring. A plurality of the support columns are uniformly arranged inside the mounting ring. The sliding column is slidably connected to the support column and connected to the elastic ring. The two ends of the second spring are respectively connected to the inner walls of the sliding column and the support column.
[0010] In the above implementation process, the setting of the support column, the sliding column and the second spring can easily push the sealing ring to always fit, thus improving the sealing effect.
[0011] In one specific implementation, a third sliding groove is provided on one side of the support column, and the sliding column is slidably connected to the third sliding groove.
[0012] In the above implementation process, the sliding column is slidably connected to the third sliding groove, which makes it easy to limit the movement of the sliding column.
[0013] In one specific implementation, a sliding rod is provided on one side of the limiting block, the sliding rod is slidably connected to the fixing ring, and a pull block is provided at one end of the sliding rod.
[0014] In the above implementation process, the sliding rod and pull block can be set to easily drive the movement of the limit block, and easily cancel the engagement between the limit block and the locking block, thereby facilitating the disassembly and assembly of the sealing ring.
[0015] In one specific implementation, the limiting block is tilted on one side.
[0016] In the above implementation process, by tilting one side of the limit block, the card block can be easily and quickly engaged with the limit block, thus improving work efficiency.
[0017] In one specific implementation, a fourth sliding groove is provided on the inner wall of the fixing ring, and the limiting block is slidably connected to the fourth sliding groove.
[0018] In the above implementation process, the movement of the limit block can be conveniently limited by the sliding connection between the limit block and the fourth slide groove.
[0019] In one specific implementation, the outer ring of the mounting ring has a groove.
[0020] In the above implementation process, by providing a groove on the outer ring of the mounting ring, it is possible for the user to easily rotate the mounting ring.
[0021] Compared with the prior art, the beneficial effects of this application are as follows: the arrangement of the first slide groove, the second slide groove, the two locking blocks, the limiting block and the first spring facilitates quick and easy disassembly and assembly of the sealing ring, makes it easy to replace, reduces the cost of use, saves energy and is environmentally friendly, and improves work efficiency. The setting of the elastic component makes it easy to push the sealing ring to always fit, thus improving the sealing effect. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the energy-saving turbine seal structure provided in the embodiments of this application;
[0024] Figure 2 A top view cross-sectional structural diagram of an energy-saving turbine seal for an automotive turbocharger provided for the embodiments of this application;
[0025] Figure 3 A schematic cross-sectional view of the energy-saving turbine seal structure provided in this application embodiment;
[0026] Figure 4 This is a cross-sectional structural diagram of the disassembly and assembly structure provided for an embodiment of this application.
[0027] In the diagram: 10 - disassembly and assembly structure; 110 - fixing ring; 120 - mounting ring; 130 - first slide groove; 140 - second slide groove; 150 - locking block; 160 - limiting block; 170 - first spring; 180 - slide rod; 20 - sealing structure; 210 - elastic component; 211 - support column; 212 - sliding column; 213 - second spring; 220 - elastic ring; 230 - sealing ring. Detailed Implementation
[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0029] Please see Figure 1 This application provides an energy-saving turbine sealing structure, including a disassembly structure 10 and a sealing structure 20.
[0030] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The disassembly and assembly structure 10 includes a fixing ring 110, an mounting ring 120, a first sliding groove 130, a second sliding groove 140, two locking blocks 150, a limiting block 160, and a first spring 170. The outer ring of the mounting ring 120 has two locking blocks 150 arranged opposite to each other. The locking blocks 150 are slidably connected to the first sliding groove 130 and the second sliding groove 140 respectively. The locking blocks 150 are in contact with the limiting block 160. The limiting block 160 is slidably connected to the fixing ring 110. The two ends of the first spring 170 are connected to the limiting block 160 and the fixing ring 110 respectively.
[0031] In the specific setting, a slide bar 180 is provided on one side of the limiting block 160. The slide bar 180 is slidably connected to the fixing ring 110. A pull block is provided at one end of the slide bar 180. The slide bar 180 and the pull block can easily drive the limiting block 160 to move, making it easy to cancel the engagement between the limiting block 160 and the locking block 150, thereby facilitating the disassembly and assembly of the sealing ring 230.
[0032] In the specific setup, the limiting block 160 is tilted on one side. By tilting the limiting block 160 on one side, the locking block 150 can be easily and quickly engaged with the limiting block 160, thus improving work efficiency.
[0033] In a specific configuration, a fourth sliding groove is provided on the inner wall of the fixing ring 110, and the limiting block 160 is slidably connected to the fourth sliding groove. The slidable connection between the limiting block 160 and the fourth sliding groove facilitates the limitation of the movement of the limiting block 160.
[0034] In a specific configuration, the outer ring of the mounting ring 120 is provided with a groove, which allows the user to easily rotate the mounting ring 120.
[0035] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The sealing structure 20 includes an elastic component 210, an elastic ring 220, and a sealing ring 230. The elastic component 210 is disposed inside the mounting ring 120, the elastic ring 220 is connected to the elastic component 210, and the sealing ring 230 is disposed inside the elastic ring 220.
[0036] In a specific configuration, the elastic component 210 includes a support column 211, a sliding column 212, and a second spring 213. Several support columns 211 are evenly arranged inside the mounting ring 120. The sliding column 212 is slidably connected to the support column 211 and is connected to the elastic ring 220. The two ends of the second spring 213 are respectively connected to the inner walls of the sliding column 212 and the support column 211. The arrangement of the support column 211, the sliding column 212, and the second spring 213 facilitates the sealing ring 230 to always fit, thus improving the sealing effect.
[0037] In a specific configuration, a third sliding groove is provided on one side of the support column 211, and the sliding column 212 is slidably connected to the third sliding groove. The slidable connection between the sliding column 212 and the third sliding groove facilitates the limitation of the movement of the sliding column 212.
[0038] The working principle of this energy-saving turbine seal structure is as follows: When using the energy-saving turbine seal structure, the locking block 150 is slid into the first slide groove 130. When it reaches the top, the mounting ring 120 is rotated, and the locking block 150 slides in the second slide groove 140, pushing the limiting block 160 to move in the fixing ring 110, squeezing the first spring 170 until the locking block 150 moves to the innermost side of the second slide groove 140. At this time, the first spring 170 resets, causing one side of the limiting block 160 to fit against the locking block 150, which facilitates quick and easy installation and removal of the sealing ring 230, making it easy to replace, reducing the cost of use, saving energy and protecting the environment, and improving work efficiency. Through the setting of the support column 211, the sliding column 212 and the second spring 213, the sealing ring 230 can be easily pushed to always fit, improving the sealing effect.
[0039] It should be noted that the specific model and specifications of the elastic ring 220 and the sealing ring 230 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.
[0040] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. An energy-saving turbine sealing structure, characterized in that, include The disassembly and assembly structure (10) includes a fixing ring (110), an installation ring (120), a first slide groove (130), a second slide groove (140), two locking blocks (150), a limiting block (160), and a first spring (170). The outer ring of the installation ring (120) is provided with two locking blocks (150) opposite to each other. The locking blocks (150) are slidably connected to the first slide groove (130) and the second slide groove (140) respectively. The locking blocks (150) are in contact with the limiting block (160). The limiting block (160) is slidably connected to the fixing ring (110). The two ends of the first spring (170) are connected to the limiting block (160) and the fixing ring (110) respectively. A sealing structure (20) includes an elastic component (210), an elastic ring (220), and a sealing ring (230). The elastic component (210) is disposed within the mounting ring (120), the elastic ring (220) is connected to the elastic component (210), and the sealing ring (230) is disposed within the elastic ring (220).
2. The energy-saving turbine sealing structure according to claim 1, characterized in that, The elastic component (210) includes a support column (211), a sliding column (212), and a second spring (213). A plurality of the support columns (211) are evenly arranged inside the mounting ring (120). The sliding column (212) is slidably connected to the support column (211). The sliding column (212) is connected to the elastic ring (220). The two ends of the second spring (213) are respectively connected to the inner walls of the sliding column (212) and the support column (211).
3. The energy-saving turbine sealing structure according to claim 2, characterized in that, A third sliding groove is provided on one side of the support column (211), and the sliding column (212) is slidably connected to the third sliding groove.
4. The energy-saving turbine sealing structure according to claim 1, characterized in that, A slide rod (180) is provided on one side of the limiting block (160), the slide rod (180) is slidably connected to the fixing ring (110), and a pull block is provided at one end of the slide rod (180).
5. The energy-saving turbine sealing structure according to claim 1, characterized in that, The limiting block (160) is tilted on one side.
6. The energy-saving turbine sealing structure according to claim 1, characterized in that, The inner wall of the fixing ring (110) is provided with a fourth sliding groove, and the limiting block (160) is slidably connected to the fourth sliding groove.
7. The energy-saving turbine sealing structure according to claim 1, characterized in that, The mounting ring (120) has a groove on its outer ring.
Citation Information
Patent Citations
Notch-free sealing ring and sealing structure of turbocharger
CN214366867U