Oil-free air compressor

Abstract

This utility model provides an oil-free air compressor, belonging to the field of air compressors. It solves the problem of poor silencer performance in existing air compressors. This oil-free air compressor includes a tank, cylinder assembly, and silencer. The silencer is located between two cylinder assemblies and connected to their exhaust ports. The silencer has multiple exhaust channels, with blocking sections at both ends inside the exhaust channels. An extension section extends from the center of each blocking section into the exhaust channel, and a through hole is provided on the extension section. A partition section is provided inside the exhaust channel, which, together with the blocking sections at both ends, forms two secondary silencing chambers. Multiple silencer cylinders pass through the partition section, each with multiple ventilation holes for gas flow. The silencer cylinders are distributed circumferentially at intervals along the central axis of the partition section. Sound-absorbing cotton is embedded at the end of the blocking section closest to the interior of the exhaust channel to reduce aerodynamic noise. This utility model has the advantages of easy maintenance and good noise reduction.

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