ACOUSTIC ELECTRIC NOISE SILENCER

摘要

FIELD: machine building.SUBSTANCE: acoustic electric noise silencer includes a housing, inside which an expansion chamber is formed. Inlet and outlet branch pipes are mounted on the chamber ends. The chamber is separated with a transverse partition wall into high-frequency and low-frequency noise reduction zones. A perforated pipe is mounted inside it and connects inlet and outlet branch pipes; noise silences housing is made from ferromagnetic material. Noise silencer housing is placed into a cylinder; with that, the cylinder is attached to a transport vehicle body, and noise silencer inside the cylinder is fixed by means of springs working for tension. A multiturn coil is applied onto (built into) a cylinder and its outputs are connected through a rectifying device (rectifying bridge) and a relay governor to a transport vehicle accumulator.EFFECT: reduction of acoustic noise level and reduction of ICE energy losses caused by using known noise silencers.1 cl, 2 dwg