Turbocharger air intake silencer with adjustable cavity space structure

A turbocharger air intake silencer with an adjustable cavity space structure, comprising a silencer connecting flange and a first resonator device, wherein the first resonator device comprises a first silencer sealing plate, a first annular sound absorption cavity body, a first rotary table, a first rotary steering gear and a first valve,

• a first sound absorption cavity is enclosed by the first silencer sealing plate, the first annular sound absorption cavity body, the first valve and the first rotary table, a first sound absorption cavity inlet pipe is provided beside the first sound absorption cavity, and the first sound absorption cavity and the first sound absorption cavity inlet pipe form a Helmholtz resonator,
• the first rotary steering gear is mounted on the silencer connecting flange, the first rotary steering gear is connected with a first rotary rack, and the first valve, the first rotary table and the first rotary rack are connected to one another;
• and
• the first sound absorption cavity inlet pipe comprises a large fan-shaped cavity and a small fan-shaped cavity, the large fan-shaped cavity is formed along a radial direction of the first annular sound absorption cavity body, the small fan-shaped cavity is formed on one side of the large fan-shaped cavity, the large fan-shaped cavity communicates with the small fan-shaped cavity, and the first valve is mounted in the small fan-shaped cavity.