Integrated sound deadening air cleaner, engine

By integrating an air filter and a muffler, the engine exhaust cleans the filter element of impurities, solving the problem of filter element adsorption of impurities, achieving self-cleaning and noise reduction, and reducing engine maintenance frequency and cost.

CN122407417APending Publication Date: 2026-07-17CHONGQING GUIEN IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING GUIEN IND & TRADE CO LTD
Filing Date
2026-05-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The air filter and muffler of existing engines are set up separately, which makes the filter element easy to attract impurities, affecting the intake efficiency. It needs to be cleaned or replaced frequently, and it takes up space and costs a lot of money.

Method used

The integrated muffler air filter combines the air filter unit and the muffler unit into a single housing. It utilizes the exhaust gases from the engine to impact the surface of the filter element, removing adsorbed impurities, and reduces noise through the structural design of the muffler unit.

Benefits of technology

It enables filter element self-cleaning, extends maintenance cycle, reduces the number of parts, saves space and cost, and ensures good air intake condition for the engine.

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Abstract

本发明公开了一体式消音空滤器包括：壳体，壳体内部封闭，表面设有若干连通壳体内外的气孔；空滤单元，设置在壳体内；所述空滤单元设有空滤出气口，所述空滤出气口与发动机的进气口连通，所述空滤单元内的滤芯部分外露在壳体内；消音单元，设置在壳体内；所述消音单元设有消音进气口和消音排气口，所述消音进气口和所述消音排气口连通；所述消音进气口穿过壳体与发动机的排气口连通；所述消音排气口位于外露在所述壳体内的滤芯表面的侧面；所述消音单元排出的废气冲击外露在所述壳体内的滤芯表面。本发明适用于吸气和排气错开的发动机，利用发动机排出的气体清理空滤器表面吸附的杂质，延长清理或更换滤芯的周期。
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