A thrust ring for a catalytic converter carrier
By designing metal retaining rings and buffer components, the stability problem of the catalyst carrier under high temperature and high vibration environment is solved, achieving the effects of catalyst fixation and vibration reduction, and improving the service life of the catalyst.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SIL SEALING-TECH (NINGBO) CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-14
AI Technical Summary
The thrust ring of a traditional catalyst carrier is not stable enough under high temperature and high vibration conditions, which makes the catalyst prone to displacement or damage.
The design incorporates a metal retaining ring, combined with micro-elastic protrusions and buffer components to enhance the catalytic converter's fixation and shock absorption. The metal retaining ring expands and tightens around the outer shell under high pressure, while the micro-elastic protrusions provide friction during normal operation, and the buffer components reduce vibration.
It improves the stability of the catalyst under high temperature and high vibration environment, prevents catalyst displacement, reduces vibration, and enhances the catalyst fixation effect.
Smart Images
Figure CN224496556U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive exhaust treatment system technology, and in particular to a thrust ring for a catalyst carrier. Background Technology
[0002] The catalytic converter is the core component of the automotive exhaust treatment system. Its carrier needs to remain stable in high-temperature (up to 800°C and above) and high-vibration (frequency range 10-100Hz) environments. Traditional carrier gaskets or thrust rings are usually made of a single metal ring or ceramic washer. Although they can provide a certain degree of fixation, the clamping force they provide is limited. When the catalytic converter becomes clogged and the internal pressure increases, it causes the catalytic converter to shift, and in severe cases, it can even damage the catalytic converter. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing a thrust ring for a catalyst support.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] The device includes a housing, a catalyst body, and a metal retaining ring. The catalyst body is located inside the housing, and the metal retaining ring is disposed at one end of the catalyst body. The metal retaining ring is arc-shaped, and its sidewall has a notch. The outer peripheral side of the metal retaining ring is fitted with the inner peripheral side of the housing.
[0006] Preferably, the outer periphery of the metal retaining ring is uniformly provided with a plurality of micro elastic protrusions.
[0007] Preferably, a steel wool gasket is provided between the metal retaining ring and the catalyst body.
[0008] Preferably, a separation sleeve is provided between the catalyst body and the outer shell.
[0009] Preferably, a buffer member is provided on the outer periphery of the outer shell. The buffer member includes a buffer sleeve and a fixing ring. The buffer sleeve is fitted around the periphery of the outer shell, and the fixing ring is fitted around the outer periphery of the buffer sleeve.
[0010] Preferably, the buffer sleeve consists of two buffer semi-rings, and the fixing ring consists of two fixing semi-rings.
[0011] Preferably, one end of the fixed half-ring is provided with a connecting piece, and one end of the connecting piece is fastened to the other end of the fixed half-ring.
[0012] In summary, this application includes at least one of the following beneficial technical effects:
[0013] 1. When the internal pressure of the catalyst body increases due to blockage, it will push the inner circumference of the metal retaining ring, causing the metal retaining ring to expand. Then, the outer circumference of the metal retaining ring will press against the inner circumference of the outer shell, allowing the metal retaining ring to hug the inner circumference of the outer shell. Thus, the catalyst body is confined inside the outer shell by the metal retaining ring, which improves the stability of the catalyst body.
[0014] 2. When the catalyst body is operating normally, the micro elastic protrusions on the outer periphery of the metal retaining ring abut against the inner periphery of the outer shell. The friction between the metal retaining ring and the outer shell is small, and the catalyst body will not move.
[0015] 3. The housing is installed inside the exhaust pipe, and the buffer on the outer periphery of the housing will reduce the vibration of the catalytic converter. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the catalyst of this utility model;
[0017] Figure 2 This is a cross-sectional schematic diagram of the catalyst of this utility model;
[0018] Figure 3 This is a cross-sectional schematic diagram of the catalyst of this utility model from another perspective.
[0019] In the diagram: 1. Outer shell; 2. Catalyst body; 3. Steel wool gasket; 4. Metal retaining ring; 6. Micro elastic protrusion; 7. Isolation sleeve; 8. Buffer component; 9. Buffer sleeve; 10. Fixing ring; 11. Buffer half ring; 12. Fixing half ring; 13. Connecting piece. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings.
[0021] This application discloses a catalyst.
[0022] Reference Figure 1 and Figure 2 The catalyst assembly includes a housing 1, a catalyst body 2, a steel wool gasket 3, and a metal retaining ring 4. The catalyst body 2, steel wool gasket 3, and metal retaining ring 4 are located inside the housing 1. One side of the steel wool gasket 3 is fixed to one end of the catalyst body 2, and one side of the metal retaining ring 4 is welded and fixed to the other side of the steel wool gasket 3. The metal retaining ring 4 has an "L"-shaped cross-section and is arc-shaped. The sidewall of the metal retaining ring 4 has notches, allowing the steel wool gasket 3 to expand or contract. When the internal pressure of the catalyst body 2 increases due to blockage, it pushes against the inner circumference of the metal retaining ring 4, causing it to expand. Subsequently, the outer circumference of the metal retaining ring 4 presses against the inner circumference of the housing 1, allowing the metal retaining ring 4 to hug the inner circumference of the housing 1. Thus, the catalyst body 2 is confined within the housing 1 by the metal retaining ring 4.
[0023] The outer periphery of the metal retaining ring 4 is uniformly provided with a number of micro elastic protrusions 6. The micro elastic protrusions 6 are integrally formed by stamping process. When the inner periphery of the metal retaining ring 4 is squeezed, the outer end of the micro elastic protrusion 6 will be pressed into the side wall of the metal retaining ring 4, so that the outer periphery of the metal retaining ring 4 fits against the inner periphery of the outer shell 1.
[0024] An isolation sleeve 7 is fitted around the outer periphery of the catalyst body 2, and the outer periphery of the isolation sleeve 7 is attached to the inner periphery of the outer shell 1. The isolation sleeve 7 prevents the catalyst body 2 from colliding with the outer shell 1.
[0025] Reference Figure 2 and Figure 3 The outer periphery of the outer casing 1 is fitted with a buffer element 8, which includes a buffer sleeve 9 and a fixing ring 10. The buffer sleeve 9 is made of elastic sponge and consists of two buffer semi-rings 11. The fixing ring 10 consists of two fixing semi-rings 12. The two buffer semi-rings 11 are located on the outer periphery of the outer casing 1, and the two fixing semi-rings 12 are located outside the two buffer semi-rings 11. A connecting piece 13 is integrally provided at one end of the fixing semi-ring 12, and the outer end of the connecting piece 13 is fastened and fixed to the side wall of one end of the other fixing semi-ring 12. The buffer element 8 on the outer periphery of the outer casing 1 reduces the vibration of the catalyst, and the two fixing semi-rings 12 are fastened and fixed to the outside of the two buffer semi-rings 11.
[0026] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A thrust ring for a catalyst support, characterized in that: The device includes a housing (1), a catalyst body (2), and a metal retaining ring (4). The catalyst body (2) is located inside the housing (1). The metal retaining ring (4) is disposed at one end of the catalyst body (2). The metal retaining ring (4) is arc-shaped and has a notch on its sidewall. The outer peripheral side of the metal retaining ring (4) is attached to the inner peripheral side of the housing (1).
2. The thrust ring for a catalyst carrier according to claim 1, characterized in that, The outer periphery of the metal retaining ring (4) is uniformly provided with several micro elastic protrusions (6).
3. A thrust ring for a catalyst carrier according to claim 1, characterized in that, A steel wool gasket (3) is provided between the metal retaining ring (4) and the catalyst body (2).
4. A thrust ring for a catalyst carrier according to claim 1, characterized in that, An isolation sleeve (7) is provided between the catalyst body (2) and the outer shell (1).
5. A thrust ring for a catalyst carrier according to claim 1, characterized in that, The outer periphery of the outer shell (1) is fitted with a buffer (8), which includes a buffer sleeve (9) and a fixing ring (10). The buffer sleeve (9) is fitted around the periphery of the outer shell (1), and the fixing ring is fitted around the outer periphery of the buffer sleeve (9).
6. A thrust ring for a catalyst carrier according to claim 5, characterized in that, The buffer sleeve (9) consists of two buffer half-rings (11), and the fixing ring (10) consists of two fixing half-rings (12).
7. A thrust ring for a catalyst carrier according to claim 6, characterized in that... One end of the fixed half ring (12) is provided with a connecting piece (13), and one end of the connecting piece (13) is fastened to the other end of the fixed half ring (12).