An intake pipe exterior muffling section
CN224379982UActive Publication Date: 2026-06-19SICHUAN SISAIHUI ENVIRONMENTAL PROTECTION TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN SISAIHUI ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
In existing technologies, the sound-absorbing felt, an external noise reduction component of the intake pipe, is prone to aging, requiring frequent replacement, and some noise still propagates through the pipe wall, resulting in poor noise reduction.
Method used
The muffler is made of a material with strong anti-aging properties. Side and end pieces are installed on the outside of the air intake pipe. The liquid injection piece is filled with grease or liquid to absorb noise energy. The connection mechanism enhances stability and anti-aging ability.
Benefits of technology
It improves the anti-aging ability and noise reduction effect of the silencing part, reduces the outward transmission of noise, and extends the service life.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224379982U_ABST
Abstract
An external noise reduction section for an air intake pipe is provided, in which multiple sections are fitted onto the outer periphery of the air intake square pipe. It includes side members, with a pair of end members at each of the upper and lower ends. The side members and end members have filling grooves, and the filling grooves of the side members are fitted with side plates. The outer ends of the filling grooves of the end members are sealed with end plates, and the side plates and end plates are fitted with liquid injection components. The side members are connected to the end members via a connecting mechanism. The liquid injection components allow the filling grooves to be filled with grease, water, or other colloids or liquids. These colloids or liquids further absorb noise energy, thereby improving noise isolation capabilities. Furthermore, the side members and end members of this design are made of iron, thus enhancing their anti-aging properties. The filling grooves and liquid injection components, which hold the liquids or colloids, are made of plastic with strong anti-aging properties, and the anti-aging properties are further enhanced by placing iron plates on the outer sides of the end plates and side plates.
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