Silencer, engine and generator set

The invention discloses a silencer, an engine and a generator set. The silencer comprises a machine shell and multiple silencing assemblies which are arranged in the machine shell, connected in series and used for absorbing noise, the inside of the machine shell is divided into multiple independent cavities, and the silencing assemblies are arranged in the cavities in a scattered mode, so that gas can be expanded or compressed between silencing assemblies and the cavities of the machine shell to lose gas energy. The invention further discloses an engine, the silencer is mounted in the engine. The invention further discloses the generator set and the engine is mounted in the generator set. According to the silencer, the engine and the generator set, the multiple stages of silencing assemblies are matched with the multiple independent cavity structures, exhaust noise is greatly reduced, and the sound quality of the exhaust noise is optimized. 本发明公开了一种消声器、发动机及发电机组，包括机壳以及设置于机壳内的多个串联并用于吸收噪声的消声组件，所述机壳内分隔有若干个独立的腔室，各