A motorcycle dual-pipe muffler exhaust pipe

CN224452894UActive Publication Date: 2026-07-03ZHEJIANG ZOUTS MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZOUTS MACHINERY
Filing Date
2025-09-19
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The temperature distribution in existing dual-channel exhaust pipes for motorcycles is uneven, affecting heat dissipation efficiency and noise reduction effect.

Method used

Design a dual-pipe muffler exhaust pipe for motorcycles, including an outer muffler pipe and an inner muffler pipe. By setting muffler baffles and drainage pipes, multiple muffler chambers and partitions are formed. Exhaust gas first enters the first muffler chamber and then flows into the partition, and then enters the third muffler chamber through the opening, and finally is discharged through the exhaust pipe. The baffles and mufflers are used to attenuate sound energy, and the gradually expanding partition increases the contact area between the high-temperature gas and the outer muffler pipe to improve heat dissipation efficiency.

Benefits of technology

It effectively improves the noise reduction effect and heat dissipation efficiency. Through the multi-stage noise reduction chamber and cavity structure, it significantly attenuates sound energy and evenly distributes the temperature of high-temperature exhaust gas, thereby improving the noise reduction and heat dissipation performance of the motorcycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a dual-pipe muffler exhaust pipe for motorcycles, belonging to the field of motorcycle accessories. It includes an exhaust pipe and a muffler pipe. The muffler pipe comprises an outer muffler pipe and an inner muffler pipe. A first muffler baffle and a second muffler baffle are provided on the muffler pipe. The first and second muffler baffles are joined with the muffler pipe to form a first muffler chamber, a second muffler chamber, and a third muffler chamber. The outer and inner muffler pipes are joined to form a cavity. A connection port is provided on the first muffler baffle, through which the first muffler chamber communicates with the cavity. An opening is provided on the wall of the inner muffler pipe, through which the cavity and the third muffler chamber communicate. A guide pipe is provided on the second muffler baffle, connecting the third and second muffler chambers. An exhaust pipe is connected to the muffler pipe, communicating with the second muffler chamber. This design guides the incoming airflow to the cavity, effectively improving heat dissipation efficiency by increasing the contact area between the high-temperature gas and the outer muffler pipe.
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